Philips Semiconductors

Product specification

74ABT374A

Octal D-type flip-flop; positive-edge trigger

(3-State)

1

1995 Sep 06

853-1448 15704

FEATURES

and 200 V per Machine Model

DESCRIPTION

The 74ABT374A high-performance BiCMOS device combines low

static and dynamic power dissipation with high speed and high

output drive.

The 74ABT374A is an 8-bit, edge triggered register coupled to eight

3-State output buffers. The two sections of the device are controlled

independently by the clock (CP) and Output Enable (OE) control

gates.

The register is fully edge triggered. The state of each D input, one

set-up time before the Low-to-High clock transition, is transferred to

the corresponding flip-flop’s Q output.

The 3-State output buffers are designed to drive heavily loaded

3-State buses, MOS memories, or MOS microprocessors. The

active-Low Output Enable (OE) controls all eight 3-State buffers

independent of the clock operation.

When OE is Low, the stored data appears at the outputs. When OE

is High, the outputs are in the High-impedance “OFF” state, which

means they will neither drive nor load the bus.

QUICK REFERENCE DATA

SYMBOL

PARAMETER

CONDITIONS

TYPICAL

UNIT

Propagation delay

CP to Qn

3.4

3.8

ns

Input capacitance

4

pF

Output capacitance

7

pF

Total supply current

110

µA

ORDERING INFORMATION

PACKAGES

TEMPERATURE RANGE

OUTSIDE NORTH AMERICA

NORTH AMERICA

DWG NUMBER

20-Pin Plastic DIP

–40

°C to +85°C

74ABT374A N

74ABT374A N

SOT146-1

20-Pin plastic SO

–40

°C to +85°C

74ABT374A D

74ABT374A D

SOT163-1

20-Pin Plastic SSOP Type II

–40

°C to +85°C

74ABT374A DB

74ABT374A DB

SOT339-1

20-Pin Plastic TSSOP Type I

–40

°C to +85°C

74ABT374A PW

74ABT374APW DH

SOT360-1

PIN CONFIGURATION

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

OE

Q0

D0

D1

Q1

Q2

D2

D3

Q3

Q4

GND

D4

D5

Q5

Q6

D6

D7

Q7

VCC

CP

SA00110

PIN DESCRIPTION

PIN

NUMBER

SYMBOL

FUNCTION

1

OE

Output enable input (active-Low)

3, 4, 7, 8,

13, 14, 17,

18

D0-D7

Data inputs

2, 5, 6, 9,

12, 15, 16,

19

Q0-Q7

Data outputs

11

CP

Clock pulse input (active rising edge)

10

GND

Ground (0V)

20

Positive supply voltage