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74ABT620

Octal transceiver with dual enable, inverting (3-State)

Philips Electronics 

Philips Semiconductors

Octal transceiver with dual enable, inverting

(3-State)

Product specification

74ABT620

FEATURES

• Octal bidirectional bus interface

• 3-State buffers

• Power-up 3-State

• Live insertion/extraction permitted

• Output capability: +64mA/–32mA

• Latch-up protection exceeds 500mA per Jedec Std 17

• ESD protection exceeds 2000 V per MIL STD 883 Method 3015

and 200 V per Machine Model

DESCRIPTION

The 74ABT620 high-performance BiCMOS device combines low

static and dynamic power dissipation with high speed and high

output drive.

The 74ABT620 device is an octal transceiver featuring inverting

3-State bus compatible outputs in both send and receive directions.

The 74ABT620 is designed for asynchronous two-way

communication between data buses. The control function

implementation allows for maximum flexibility in timing. This device

allows data transmission from the A bus to the B bus or from the B

bus to the A bus, depending upon the logic levels at the Enable

inputs (OEBA and OEAB). The Enable inputs can be used to disable

the device so that the buses are effectively isolated.

QUICK REFERENCE DATA

SYMBOL

PARAMETER

tPLH

tPHL

CIN

CI/O

ICCZ

Propagation delay

An to Bn or Bn to An

Input capacitance

OEAB, OEBA

I/O capacitance

Total supply current

CONDITIONS

Tamb = 25°C; GND = 0V

CL = 50pF; VCC = 5V

VI = 0V or VCC

Outputs disabled; VO = 0V or VCC

Outputs disabled; VCC = 5.5V

TYPICAL

3.1

4

7

50

UNIT

ns

pF

pF

µA

ORDERING INFORMATION

PACKAGES

20-Pin Plastic DIP

20-Pin plastic SO

20-Pin Plastic SSOP Type II

20-Pin Plastic TSSOP Type I

TEMPERATURE RANGE OUTSIDE NORTH AMERICA

–40°C to +85°C

74ABT620 N

–40°C to +85°C

74ABT620 D

–40°C to +85°C

74ABT620 DB

–40°C to +85°C

74ABT620 PW

NORTH AMERICA

74ABT620 N

74ABT620 D

74ABT620 DB

74ABT620PW DH

DWG NUMBER

SOT146-1

SOT163-1

SOT339-1

SOT360-1

PIN CONFIGURATION

OEAB 1

A0 2

A1 3

A2 4

A3 5

A4 6

A5 7

A6 8

A7 9

GND 10

20 VCC

19 OEBA

18 B0

17 B1

16 B2

15 B3

14 B4

13 B5

12 B6

11 B7

PIN DESCRIPTION

PIN NUMBER SYMBOL

NAME AND FUNCTION

1

OEAB

Output enable input, A side to B side

(active-High)

2, 3, 4, 5,

6, 7, 8, 9

A0 – A7 Data inputs/outputs (A side)

18, 17, 16, 15,

14, 13, 12, 11

B0 – B7

Data inputs/outputs (B side)

19

OEBA

Output enable input, B side to A side

(active-Low)

10

GND Ground (0V)

20

VCC Positive supply voltage

SA00189

1993 Jun 21

2

853–1611 10081

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