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MAX3372中文资料

MAX3372中文资料
MAX3372中文资料

General Description

The MAX3372E–MAX3379E and MAX3390E–MAX3393E ±15kV ESD-protected level translators provide the level shifting necessary to allow data transfer in a multivoltage system. Externally applied voltages, V CC and V L , set the logic levels on either side of the device. A low-voltage logic signal present on the V L side of the device appears as a high-voltage logic signal on the V CC side of the device, and vice-versa. The MAX3374E/MAX3375E/MAX3376E/MAX3379E and MAX3390E–MAX3393E unidi-rectional level translators level shift data in one direction (V L →V CC or V CC →V L ) on any single data line. The MAX3372E/MAX3373E and MAX3377E/MAX3378E bidi-rectional level translators utilize a transmission-gate-based design (Figure 2) to allow data translation in either direction (V L ?V CC ) on any single data line. The MAX3372E–MAX3379E and MAX3390E–MAX3393E accept V L from +1.2V to +5.5V and V CC from +1.65V to +5.5V, making them ideal for data transfer between low-voltage ASICs/PLDs and higher voltage systems.

All devices in the MAX3372E–MAX3379E, MAX3390E–MAX3393E family feature a three-state output mode that reduces supply current to less than 1μA, thermal short-circuit protection, and ±15kV ESD protection on the V CC side for greater protection in applications that route sig-nals externally. The MAX3372E/MAX3377E operate at a guaranteed data rate of 230kbps. Slew-rate limiting reduces EMI emissions in all 230kbps devices. The MAX3373E–MAX3376E/MAX3378E/MAX3379E and MAX3390E–MAX3393E operate at a guaranteed data rate of 8Mbps over the entire specified operating voltage range. Within specific voltage domains, higher data rates are possible. (See Timing Characteristics .)

The MAX3372E–MAX3376E are dual level shifters available in 3 x 3 UCSP? and 8-pin SOT23-8 pack-ages. The MAX3377E/MAX3378E/MAX3379E and MAX3390E–MAX3393E are quad level shifters avail-able in 3 x 4 UCSP and 14-pin TSSOP packages.

________________________Applications

SPI?, MICROWIRE?, and I 2C? Level Translation

Low-Voltage ASIC Level Translation Smart Card Readers Cell-Phone Cradles Portable POS Systems

Portable Communication Devices Low-Cost Serial Interfaces Cell Phones GPS

Telecommunications Equipment

Features

o Guaranteed Data Rate Options

230kbps

8Mbps (+1.2V ≤V L ≤V CC ≤+5.5V)10Mbps (+1.2V ≤V L ≤V CC ≤+3.3V)

16Mbps (+1.8V ≤V L ≤V CC ≤+2.5V and +2.5V ≤V L ≤V CC ≤+3.3V)

o Bidirectional Level Translation (MAX3372E/MAX3373E and MAX3377E/MAX3378E)

o Operation Down to +1.2V on V L

o ±15kV ESD Protection on I/O V CC Lines

o Ultra-Low 1μA Supply Current in Three-State Output Mode

o Low-Quiescent Current (130μA typ)o UCSP, SOT, and TSSOP Packages o Thermal Short-Circuit Protection

MAX3372E–MAX3379E/MAX3390E–MAX3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad

Low-Voltage Level Translators in UCSP

________________________________________________________________Maxim Integrated Products

1

Pin Configurations

19-2328; Rev 3; 9/03

For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at https://www.wendangku.net/doc/c29940756.html,.

Ordering Information

UCSP is a trademark of Maxim Integrated Products, Inc.SPI is a trademark of Motorola, Inc.I 2C is a trademark of Phillips Corp.

MICROWIRE is a trademark of National Semiconductor Corp.

Ordering Information continued at end of data sheet.Selector Guide appears at end of data sheet.

M A X 3372E –M A X 3379E /M A X 3390E –M A X 3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad Low-Voltage Level Translators in UCSP 2_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

All Voltages Referenced to GND

V CC ...........................................................................-0.3V to +6V I/O V CC_......................................................-0.3V to (V CC + 0.3V)I/O V L_...........................................................-0.3V to (V L + 0.3V)THREE-STATE ...............................................-0.3V to (V L + 0.3V)Short-Circuit Duration I/O V L , I/O V CC to GND...........Continuous Short-Circuit Duration I/O V L or I/O V CC to GND Driven from 40mA Source

(except MAX3372E and MAX3377E).....................Continuous

Continuous Power Dissipation (T A = +70°C)

8-Pin SOT23 (derate 8.9mW/°C above +70°C)...........714mW 3 x 3 UCSP (derate 4.7mW/°C above +70°C)............379mW 3 x 4 UCSP (derate 6.5mW/°C above +70°C)............579mW 14-Pin TSSOP (derate 9.1mW/°C above +70°C)........727mW Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°C

MAX3372E–MAX3379E/MAX3390E–MAX3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad

Low-Voltage Level Translators in UCSP

_______________________________________________________________________________________3

ELECTRICAL CHARACTERISTICS (continued)

(V CC = +1.65V to +5.5V, V L = +1.2V to (V CC + 0.3V), GND = 0, I/O V L_and I/O V CC_unconnected, T A = T MIN to T MAX , unless other-

M A X 3372E –M A X 3379E /M A X 3390E –M A X 3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad Low-Voltage Level Translators in UCSP 4_______________________________________________________________________________________

TIMING CHARACTERISTICS

(V CC = +1.65V to +5.5V, V L = +1.2V to (V CC + 0.3V), GND = 0, R LOAD = 1M ?, I/O test signal of Figure 1, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +3.3V, V L = +1.8V, T A = +25°C, unless otherwise noted.) (Notes 1, 2)

MAX3372E–MAX3379E/MAX3390E–MAX3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad

Low-Voltage Level Translators in UCSP

_______________________________________________________________________________________5

and not production tested.

Note 2:For normal operation, ensure V L < (V CC + 0.3V). During power-up, V L > (V CC + 0.3V) will not damage the device. Note 3:To ensure maximum ESD protection, place a 1μF capacitor between V CC and GND. See Applications Circuits .Note 4:10% to 90% Note 5:90% to 10%

TIMING CHARACTERISTICS (continued)

(V = +1.65V to +5.5V, V = +1.2V to (V + 0.3V), GND = 0, R = 1M ?, I/O test signal of Figure 1, T = T to T , unless

M A X 3372E –M A X 3379E /M A X 3390E –M A X 3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad Low-Voltage Level Translators in UCSP 6_______________________________________________________________________________________

Typical Operating Characteristics

(R L = 1M ?, T A = +25°C, unless otherwise noted. All 230kbps TOCs apply to MAX3372E/MAX3377E only. All 8Mbps and 500kbps TOCs apply to MAX3373E –MAX3376E/MAX3378E/MAX3379E and MAX3390E –MAX3393E only.)

V L SUPPLY CURRENT vs. SUPPLY VOLTAGE (DRIVING I/O V L , V CC = +3.3V, V L = +1.8V)

V CC (V)S U P P L Y C U R R E N T (μA )

4.95

4.40

3.85

3.30

2.75

2.20

10020030040050060001.65

5.50V CC SUPPLY CURRENT vs. SUPPLY VOLTAGE (DRIVING I/O V L , V CC = +3.3V, V L = +1.8V)

V CC (V)S U P P L Y C U R R E N T (m A )

4.954.403.853.302.752.200.51.01.52.0

2.5

3.03.50

1.65 5.50

V L SUPPLY CURRENT vs. TEMPERATURE (DRIVING I/O V CC , V CC = +3.3V, V L = +1.8V)

TEMPERATURE (°C)

S U P P L Y C U R R E N T (μA )

6035-151050100150200250300350400

-4085

V CC SUPPLY CURRENT vs. TEMPERATURE

(DRIVING I/O V CC , V CC = +3.3V, V L = +1.8V)

TEMPERATURE (°C)

S U P P L Y C U R R E N T (μA )60

35

-15

10

20040060080010001200140016000-40

85

V L SUPPLY CURRENT vs. CAPACITIVE LOAD (DRIVING I/O V L , V CC = +3.3V, V L

= +1.8V)

CAPACITIVE LOAD (pF)

S U P P L Y C U R R E N T (μA )

85

70

55

40

25

501001502002503003500

10

100

V CC SUPPLY CURRENT vs. CAPACITIVE LOAD (DRIVING I/O V L , V CC = +3.3V, V L = +1.8V)

CAPACITIVE LOAD (pF)

S U P P L Y C U R R E N T (μA )

85

70

55

40

25

500

10001500

20002500

10

100

RISE/FALL TIME vs. CAPACITIVE LOAD (DRIVING I/O V L , V CC = +3.3V, V L = +1.8V)

CAPACITIVE LOAD (pF)

R I S E /F A L L T I M E (n s )

90

80

70

60

50

40

30

500

1000

1500

20002500

020

100

RISE/FALL TIME vs. CAPACITIVE LOAD (DRIVING I/O V L , V CC = +3.3V, V L = +1.8V)

CAPACITIVE LOAD (pF)

R I S E /F A L L T I M E (n s )

45

40

30

35

20

25

15

24

681012141618

010

50

RISE/FALL TIME vs. CAPACITIVE LOAD (DRIVING I/O V L , V CC = +3.3V, V L = +1.8V)

CAPACITIVE LOAD (pF)

R I S E /F A L L T I M E (n s )

45

40

35

30

25

20

15

50

100

150

200250

010

50

MAX3372E–MAX3379E/MAX3390E–MAX3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad

Low-Voltage Level Translators in UCSP

_______________________________________________________________________________________7

PROPAGATION DELAY vs. CAPACITIVE LOAD (DRIVING I/O V L , V CC = +3.3V, V L = +1.8V)

CAPACITIVE LOAD (pF)

P R O P A G A T I O N D E L A Y (n s )

90

80

70

60

50

40

30

100200

300400500600700020

100

PROPAGATION DELAY vs. CAPACITIVE LOAD (DRIVING I/O V L , V CC = +3.3V, V L = +1.8V)

CAPACITIVE LOAD (pF)

P R O P A G A T I O N D E L A Y (n s )

45

40

35

30

25

20

15

3

6

9

12

15

10

50

PROPAGATION DELAY vs. CAPACITIVE LOAD (DRIVING I/O V L , V CC = +3.3V, V L = +1.8V)

CAPACITIVE LOAD (pF)

P R O P A G A T I O N D E L A Y (n s )

45

40

35

30

25

20

15

50

100150200250300010

50

RISE/FALL TIME vs. CAPACITIVE LOAD (DRIVING I/O V L , V CC = +2.5V, V L = +1.8V)

CAPACITIVE LOAD (pF)

R I S E /F A L L T I M E (n s )

90

80

70

60

50

40

30

500

1000

1500

20002500020

100

RISE/FALL TIME vs. CAPACITIVE LOAD (DRIVING I/O V L

, V CC = +2.5V, V L = +1.8V)

CAPACITIVE LOAD (pF)R I S E /F A L L T I M E (n s )

454035302520152468101214

1050

RISE/FALL TIME vs. CAPACITIVE LOAD (DRIVING I/O V CC , V CC = +2.5V, V L = +1.8V)

CAPACITIVE LOAD (pF)

R I S E /F A L L T I M E (n s )

4540353025201550100150200250300

1050

RISE/FALL TIME vs. CAPACITIVE LOAD (DRIVING I/O V CC , V CC

= +3.3V, V L = +1.8V)

CAPACITIVE LOAD (pF)

R I S E /F A L L T I M E (n s )

90

80

70

60

50

40

30

500

1000

1500

20002500

020

100

RISE/FALL TIME vs. CAPACITIVE LOAD (DRIVING I/O V CC , V

CC = +3.3V, V L = +1.8V)

CAPACITIVE LOAD (pF)

R I S E /F A L L T I M E (n s )

45

40

35

30

25

20

15

2

4681012

010

50

RISE/FALL TIME vs. CAPACITIVE LOAD (DRIVING I/O V CC , V CC = +3.3V, V L = +1.8V)

CAPACITIVE LOAD (pF)

R I S E /F A L L T I M E (n s )

4540353025201550100

1502002503000

1050

Typical Operating Characteristics (continued)

(R L = 1M ?, T A = +25°C, unless otherwise noted. All 230kbps TOCs apply to MAX3372E/MAX3377E only. All 8Mbps and 500kbps TOCs apply to MAX3373E –MAX3376E/MAX3378E/MAX3379E and MAX3390E –MAX3393E only.)

M A X 3372E –M A X 3379E /M A X 3390E –M A X 3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad Low-Voltage Level Translators in UCSP 8_______________________________________________________________________________________

Typical Operating Characteristics (continued)

(R L = 1M ?, T A = +25°C, unless otherwise noted. All 230kbps TOCs apply to MAX3372E/MAX3377E only. All 8Mbps and 500kbps TOCs apply to MAX3373E –MAX3376E/MAX3378E/MAX3379E and MAX3390E –MAX3393E only.)

PROPAGATION DELAY vs. CAPACITIVE LOAD (DRIVING I/O V CC , V CC = +3.3V, V L = +1.8V)

CAPACITIVE LOAD (pF)P R O P A G A T I O N D E L A Y (n s )

90

80

70

60

50

40

30

100200300400500600700020

100

PROPAGATION DELAY vs. CAPACITIVE LOAD (DRIVING I/O V CC , V CC = +3.3V, V L = +1.8V)

CAPACITIVE LOAD (pF)P R O P A G A T I O N D E L A Y (n s )

454035302520151234560

1050

PROPAGATION DELAY vs. CAPACITIVE LOAD (DRIVING I/O V CC , V CC = +3.3V, V L = +1.8V)

CAPACITIVE LOAD (pF)

P R O P A G A T I O N D E L A Y (n s )

4540353025201550100

1502002503000

1050

RISE/FALL TIME vs. CAPACITIVE LOAD (DRIVING I/O V CC , V CC = +2.5V, V L = +1.8V)

CAPACITIVE LOAD (pF)

R I S E /F A L L T I M E (n s )

90

80

70

60

50

40

30

500

1000

1500

20002500

020

100

RISE/FALL TIME vs. CAPACITIVE LOAD (DRIVING I/O V CC , V CC = +2.5V, V L = +1.8V)

CAPACITIVE LOAD (pF)

R I S E /F A L L T I M E (n s )

40

30

20

2

468

1012

10

50

RISE/FALL TIME vs. CAPACITIVE LOAD (DRIVING I/O V CC , V CC = +2.5V, V L = +1.8V)

CAPACITIVE LOAD (pF)

R

I S E /F A L l T I M E (n s )

40

30

20

50100

150200

250300350

10

50

RAIL-TO-RAIL DRIVING

(DRIVING I/O V L , V CC = +3.3V, V L = +1.8V,

C L = 50pF, DATA RATE = 230kbps)

M A X 3372E t o c 25

I/O V L_I/O V CC_1V/div 2V/div 1μs/div RAIL-TO-RAIL DRIVING

(DRIVING I/O V L , V CC = +3.3V, V L = +1.8V,

C L = 15pF, DATA RATE = 8Mbps)

M A X 3372E t o c 26

I/O V L_I/O V CC_1V/div

2V/div

200ns/div

MAX3372E–MAX3379E/MAX3390E–MAX3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad

Low-Voltage Level Translators in UCSP

_______________________________________________________________________________________9

Typical Operating Characteristics (continued)

(R L = 1M ?, T A = +25°C, unless otherwise noted. All 230kbps TOCs apply to MAX3372E/MAX3377E only. All 8Mbps and 500kbps TOCs apply to MAX3373E –MAX3376E/MAX3378E/MAX3379E and MAX3390E –MAX3393E only.)

EXITING THREE-STATE OUTPUT MODE (V CC = +3.3V, V L = +1.8V, C L = 50pF)

MAX3372E toc28

I/O V L_

I/O V CC_

2μs/div

THREE-STATE

2V/div

1V/div

1V/div

Configurations for input/output configurations.

OPEN-DRAIN DRIVING

(DRIVING I/O V L , V CC = +3.3V, V L = +1.8V,

C L = 15pF, DATA RATE = 500kbps)

M A X 3372E t o c 27

I/O V L_I/O V CC_1V/div

2V/div

200ns/div

M A X 3372E –M A X 3379E /M A X 3390E –M A X 3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad Low-Voltage Level Translators in UCSP 10

______________________________________________________________________________________

Detailed Description

The MAX3372E –MAX3379E and MAX3390E –MAX3393E ESD-protected level translators provide the level shifting necessary to allow data transfer in a multivoltage system.Externally applied voltages, V CC and V L , set the logic lev-els on either side of the device. A low-voltage logic signal present on the V L side of the device appears as a high-voltage logic signal on the V CC side of the device, and vice-versa. The MAX3374E/MAX3375E/MAX3376E/MAX3379E and MAX3390E –MAX3393E unidirectional level translators level shift data in one direction (V L →V CC or V CC →V L ) on any single data line. The MAX3372E/MAX3373E and MAX3377E/MAX3378E bidi-rectional level translators utilize a transmission-gate-based design (see F igure 2) to allow data translation in either direction (V L ?V CC ) on any single data line. The MAX3372E –MAX3379E and MAX3390E –MAX3393E accept V L from +1.2V to +5.5V and V CC from +1.65V to +5.5V, making them ideal for data transfer between low-voltage ASICs/PLDs and higher voltage systems.

All devices in the MAX3372E –MAX3379E, MAX3390E –MAX3393E family feature a three-state output mode that reduces supply current to less than 1μA, thermal short-circuit protection, and ±15kV ESD protection on the V CC side for greater protection in applications that route sig-nals externally. The MAX3372E/MAX3377E operate at a guaranteed data rate of 230kbps. Slew-rate limiting reduces EMI emissions in all 230kbps devices. The MAX3373E –MAX3376E/MAX3378E/MAX3379E and MAX3390E –MAX3393E operate at a guaranteed data rate of 8Mbps over the entire specified operating voltage range. Within specific voltage domains, higher data rates are possible. (See Timing Characteristics .)

Level Translation

For proper operation ensure that +1.65V ≤V CC ≤+5.5V,+1.2V ≤V L ≤+5.5V, and V L ≤(V CC + 0.3V). During power-up sequencing, V L ≥(V CC + 0.3V) will not damage the device. During power-supply sequencing, when V CC is floating and V L is powering up, a current may be sourced, yet the device will not latch up. The speed-up

Figure 1a. Rail-to-Rail Driving I/O V L

Figure 1b. Rail-to-Rail Driving I/O V CC

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.

MAX3372E–MAX3379E/MAX3390E–MAX3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad

Low-Voltage Level Translators in UCSP

______________________________________________________________________________________

11

circuitry limits the maximum data rate for devices in the MAX3372E –MAX3379E, MAX3390E –MAX3393E family to 16Mbps. The maximum data rate also depends heavily on the load capacitance (see Typical Operating Characteristics ), output impedance of the driver, and the operational voltage range (see Timing Characteristics).

Speed-Up Circuitry

The MAX3373E –MAX3376E/MAX3378E/MAX3379E and MAX3390E –MAX3393E feature a one-shot generator that decreases the rise time of the output. When triggered,MOSFETs PU1 and PU2 turn on for a short time to pull up I/O V L_and I/O V CC_to their respective supplies (see Figure 2b). This greatly reduces the rise time and propa-gation delay for the low-to-high transition. The scope photo of Rail-to-Rail Driving for 8Mbps Operation in the Typical Operating Characteristics shows the speed-up circuitry in operation.

Three-State Output Mode

Pull THREE-STATE low to place the MAX3372E –MAX3379E and MAX3390E –MAX3393E in three-state out-put mode. Connect THREE-STATE to V L (logic high) for normal operation. Activating the three-state output mode disconnects the internal 10k ?pullup resistors on the I/O V CC and I/O V L lines. This forces the I/O lines to a high-impedance state, and decreases the supply current to less than 1μA. The high-impedance I/O lines in three-state output mode allow for use in a multidrop network.When in three-state output mode, do not allow the voltage at I/O V L_to exceed (V L + 0.3V), or the voltage at I/O V CC_to exceed (V CC + 0.3V).

Thermal Short-Circuit Protection

Thermal overload detection protects the MAX3372E –MAX3379E and MAX3390E –MAX3393E from short-circuit fault conditions. In the event of a short-circuit fault, when the junction temperature (T J ) reaches +152°C, a thermal sensor signals the three-state output mode logic to force the device into three-state output mode. When T J has cooled to +142°

C, normal operation resumes.

Figure 1c. Open-Drain Driving I/O V CC Figure 1d. Open-Drain Driving I/O V L

M A X 3372E –M A X 3379E /M A X 3390E –M A X 3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad Low-Voltage Level Translators in UCSP 12______________________________________________________________________________________

Figure 2a. Functional Diagram, MAX3372E/MAX3377E (1I/O line)

Figure 2b. Functional Diagram, MAX3373E/MAX3378E (1I/O line)

MAX3372E–MAX3379E/MAX3390E–MAX3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad

Low-Voltage Level Translators in UCSP

______________________________________________________________________________________

13

±15kV ESD Protection

As with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against electrostatic discharges encountered during handling and assembly.The I/O V CC lines have extra protection against static electricity. Maxim ’s engineers have developed state-of-the-art structures to protect these pins against ESD of ±15kV without damage. The ESD structures withstand high ESD in all states: normal operation, three-state out-put mode, and powered down. After an ESD event,Maxim ’s E versions keep working without latchup,whereas competing products can latch and must be powered down to remove latchup.

ESD protection can be tested in various ways. The I/O V CC lines of this product family are characterized for protection to the following limits:

1)±15kV using the Human Body Model

2)±8kV using the Contact Discharge method specified in IEC 1000-4-2

3)±10kV using IEC 1000-4-2’s Air-Gap Discharge method ESD Test Conditions

ESD performance depends on a variety of conditions.Contact Maxim for a reliability report that documents test setup, test methodology, and test results.

Human Body Model

Figure 3a shows the Human Body Model and Figure 3b shows the current waveform it generates when dis-charged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of inter-est, which is then discharged into the test device through a 1.5k ?resistor.

IEC 1000-4-2

The IEC 1000-4-2 standard covers ESD testing and performance of finished equipment; it does not specifi-cally refer to integrated circuits. The MAX3372E –

MAX3379E and MAX3390E –MAX3393E help to design equipment that meets Level 3 of IEC 1000-4-2, without the need for additional ESD-protection components.The major difference between tests done using the Human Body Model and IEC 1000-4-2 is higher peak cur-rent in IEC 1000-4-2, because series resistance is lower in the IEC 1000-4-2 model. Hence, the ESD withstand voltage measured to IEC 1000-4-2 is generally lower than that measured using the Human Body Model. Figure 4a shows the IEC 1000-4-2 model, and Figure 4b shows the current waveform for the ±8kV, IEC 1000-4-2, Level 4,ESD contact-discharge test.

The air-gap test involves approaching the device with a charged probe. The contact-discharge method connects the probe to the device before the probe is energized.Machine Model

The Machine Model for ESD tests all pins using a 200pF storage capacitor and zero discharge resis-tance. Its objective is to emulate the stress caused by contact that occurs with handling and assembly during manufacturing. Of course, all pins require this protec-tion during manufacturing, not just inputs and outputs.Therefore, after PC board assembly, the Machine Model is less relevant to I/O ports.

Figure 3a. Human Body ESD Test Model Figure 3b. Human Body Current Waveform

M A X 3372E –M A X 3379E /M A X 3390E –M A X 3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad Low-Voltage Level Translators in UCSP

Applications Information

Power-Supply Decoupling

To reduce ripple and the chance of transmitting incor-rect data, bypass V L and V CC to ground with a 0.1μF capacitor. See Typical Operating Circuit. To ensure full ±15kV ESD protection, bypass V CC to ground with a 1μF capacitor. Place all capacitors as close to the power-supply inputs as possible.

I 2C Level Translation

The MAX3373E –MAX3376E, MAX3378E/MAX3379E and MAX3390E –MAX3393E level-shift the data present on the I/O lines between +1.2V and +5.5V, making them ideal for level translation between a low-voltage

ASIC and an I 2C device. A typical application involves interfacing a low-voltage microprocessor to a 3V or 5V D/A converter, such as the MAX517.

Push-Pull vs. Open-Drain Driving

All devices in the MAX3372E –MAX3379E and MAX3390E –MAX3393E family may be driven in a push-pull configuration. The MAX3373E –MAX3376E/MAX3378E/MAX3379E and MAX3390E –MAX3393E include internal 10k ?resistors that pull up I/O V L_and I/O V CC_to their respective power supplies, allowing operation of the I/O lines with open-drain devices. See Timing Characteristics for maximum data rates when using open-drain drivers.

Figure 4b. IEC 1000-4-2 ESD Generator Current Waveform

Figure 4a. IEC 1000-4-2 ESD Test Model Typical Operating Circuit

MAX3372E–MAX3379E/MAX3390E–MAX3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad

Low-Voltage Level Translators in UCSP

______________________________________________________________________________________15

Applications Circuits

M A X 3372E –M A X 3379E /M A X 3390E –M A X 3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad Low-Voltage Level Translators in UCSP 16______________________________________________________________________________________

Applications Circuits (continued)

MAX3372E–MAX3379E/MAX3390E–MAX3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad

Low-Voltage Level Translators in UCSP

______________________________________________________________________________________17

Applications Circuits (continued)

M A X 3372E –M A X 3379E /M A X 3390E –M A X 3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad Low-Voltage Level Translators in UCSP

Applications Circuits (continued)

MAX3372E–MAX3379E/MAX3390E–MAX3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad

Low-Voltage Level Translators in UCSP

Applications Circuits (continued)

M A X 3372E –M A X 3379E /M A X 3390E –M A X 3393E

±15kV ESD-Protected, 1μA, 16Mbps, Dual/Quad Low-Voltage Level Translators in UCSP 20______________________________________________________________________________________

Selector Guide

*Higher data rates are possible (see Timing Characteristics).

Ordering Information (continued)

*Future product —contact factory for availability.

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