Philips Semiconductors

Product specification

74ABT534A

Octal D-type flip-flop, inverting (3-State)

2

1997 Feb 03

853-1910 17722

FEATURES

and 200 V per Machine Model

DESCRIPTION

The 74ABT534A high-performance BiCMOS device combines low

static and dynamic power dissipation with high speed and high

output drive.

The 74ABT534A 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 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

3.3

3.6

ns

Input capacitance

3.5

pF

Output capacitance

6.5

pF

Total supply current

100

µA

ORDERING INFORMATION

PACKAGES

TEMPERATURE RANGE

OUTSIDE NORTH AMERICA

NORTH AMERICA

DWG NUMBER

20-Pin Plastic DIP

–40

°C to +85°C

74ABT534A N

74ABT534A N

SOT146-1

20-Pin plastic SO

–40

°C to +85°C

74ABT534A D

74ABT534A D

SOT163-1

20-Pin Plastic SSOP Type II

–40

°C to +85°C

74ABT534A DB

74ABT534A DB

SOT339-1

20-Pin Plastic TSSOP Type I

–40

°C to +85°C

74ABT534A PW

74ABT534APW DH

SOT360-1

PIN CONFIGURATION

20

19

18

17

16

15

14

13

12

10

11

9

8

7

6

5

4

3

2

1

VCC

Q7

D7

D6

Q6

Q5

D5

D4

Q4

CP

Q0

D0

D1

Q1

Q2

D2

D3

Q3

GND

OE

SA00161

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

Inverting 3-State outputs

11

CP

Clock pulse input

(active rising edge)

10

GND

Ground (0V)

20

Positive supply voltage