HD74LS20FPEL中文资料
HD74LS20
Dual 4-input Positive NAND Gates
REJ03D0400–0200
Rev.2.00
Feb.18.2005 Features
? Ordering Information
Part Name Package Type Package Code
(Previous Code)
Package
Abbreviation
Taping Abbreviation
(Quantity)
HD74LS20P DILP-14
pin PRDP0014AB-B
(DP-14AV)
P —
HD74LS20FPEL SOP-14 pin (JEITA) PRSP0014DF-B
(FP-14DAV)
FP EL (2,000 pcs/reel)
HD74LS20RPEL SOP-14 pin (JEDEC) PRSP0014DE-A
(FP-14DNV)
RP EL (2,500 pcs/reel)
Note: Please consult the sales office for the above package availability. Pin Arrangement
Circuit Schematic (1/2)
Absolute Maximum Ratings
Unit Item Symbol
Ratings
Supply voltage V CC 7 V Input voltage V IN 7 V Power dissipation P T 400
mW Storage temperature Tstg –65 to +150 °C
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Recommended Operating Conditions
Unit
Max
Item Symbol
Min
Typ
Supply voltage V CC 4.75 5.00 5.25 V
I OH — — –400 μA
Output current
I OL — — 8 mA
°C
75
25
–20
Operating temperature Topr
Electrical Characteristics
(Ta = –20 to +75 °C)
Item
Symbol min. typ.* max. Unit Condition V IH 2.0 — — V Input voltage
V IL — — 0.8 V V OH 2.7 — — V V CC = 4.75 V, V IL = 0.8 V, I OH = –400 μA
— — 0.5 I OL = 8 mA V CC = 4.75 V, V IH = 2 V
Output voltage
V OL
— — 0.4 V I OL = 4 mA
I IH — — 20 μA V CC = 5.25 V, V I = 2.7 V I IL — — –0.4 mA V CC = 5.25 V, V I = 0.4 V
Input current I I — — 0.1 mA V CC = 5.25 V, V I = 7 V Short-circuit output
current I OS –20
— –100 mA V CC = 5.25 V I CCH — 0.4 0.8 mA V CC = 5.25 V
Supply current
I CCL — 1.2 2.2 mA V CC = 5.25 V
Input clamp voltage V IK — — –1.5 V V CC = 4.75 V, I IN = –18 mA Note: * V CC = 5 V, Ta = 25°C
Switching Characteristics
(V CC = 5 V, Ta = 25°C)
Item Symbol min. typ. max. Unit Condition
t PLH — 9 15 ns
Propagation delay time t PHL — 10 15 ns C L = 15 pF, R L = 2 k ?
Note: Refer to Test Circuit and Waveform of the Common Item "TTL Common Matter (Document No.: REJ27D0005-0100)".
Package Dimensions
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