Philips Semiconductors

Product specification

74ABT373A

Octal transparent latch (3-State)

2

1995 Feb 17

853-1454 14852

FEATURES

and 200 V per Machine Model

DESCRIPTION

The 74ABT373A high-performance BiCMOS device combines low

static and dynamic power dissipation with high speed and high

output drive.

The 74ABT373A device is an octal transparent latch coupled to

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

controlled independently by Enable (E) and Output Enable (OE)

control gates.

The data on the D inputs are transferred to the latch outputs when

the Latch Enable (E) input is High. The latch remains transparent to

the data inputs while E is High, and stores the data that is present

one setup time before the High-to-Low enable transition.

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 latch operation.

When OE is Low, the latched or transparent 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

Dn to Qn

3.2

3.6

ns

Input capacitance

4

pF

Output capacitance

7

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

74ABT373A N

74ABT373A N

SOT146-1

20-Pin plastic SO

–40

°C to +85°C

74ABT373A D

74ABT373A D

SOT163-1

20-Pin Plastic SSOP Type II

–40

°C to +85°C

74ABT373A DB

74ABTD373A B

SOT339-1

20-Pin Plastic TSSOP Type I

–40

°C to +85°C

74ABT373A PW

7ABT373APW 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

E

SA00059

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

E

Enable input (active-High)

10

GND

Ground (0V)

20

Positive supply voltage