MC74AC374中文资料

Octal D?Type Flip?Flop with 3?State Outputs

The MC74AC374/74ACT374 is a high-speed, low-power octal D-type flip-flop featuring separate D-type inputs for each flip-flop and 3-state outputs for bus-oriented applications. A buffered Clock (CP) and Output Enable (OE) are common to all flip-flops.?Buffered Positive Edge-Triggered Clock

?3-State Outputs for Bus-Oriented Applications ?Outputs Source/Sink 24 mA

?See MC74AC273 for Reset Version

?See MC74AC377 for Clock Enable Version

?See MC74AC373 for Transparent Latch Version ?See MC74AC574 for Broadside Pinout Version

?See MC74AC564 for Broadside Pinout Version with Inverted Outputs ?

′ACT374 Has TTL Compatible Inputs

19

20

18

17

16

15

14

2134567V CC 13

812

911

10O 7D 7D 6O 6O 5D 5D 4O 4CP OE

O 0

D 0

D 1

O 1

O 2

D 2

D 3

O 3

GND

PIN NAMES D 0–D 7 Data Inputs

CP Clock Pulse Input

OE 3-State Output Enable Input O 0–O 7

3-State Outputs

H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial

Z = High Impedance

= LOW-to-HIGH Transition

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