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74LVT623

3.3 V octal transceiver with dual enable (3-State)

Philips Electronics 

Philips Semiconductors

3.3 V octal transceiver with dual enable (3-State)

Product specification

74LVT623

FEATURES

• Separate controls for data flow in each direction

• Output capability: +64 mA/–32 mA

• TTL input and output switching levels

• Input and output interface capability to systems at 5 V supply

• Bus-hold data inputs eliminate the need for external pull-up

resistors to hold unused inputs

• Live insertion/extraction permitted

• No bus current loading when output is tied to 5 V bus

• Power-up 3-State

• Power-up reset

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

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

and 200 V per Machine Model

DESCRIPTION

The 74LVT623 is a high-performance BiCMOS product designed for

VCC operation at 3.3 V.

The 74LVT623 device is an octal transceiver featuring non–inverting

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

The 74LVT623 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.

Control of data flow from B to A is similar, but using the EBA, LEBA,

and OEBA inputs.

QUICK REFERENCE DATA

SYMBOL

PARAMETER

tPLH

tPHL

CIN

CI/O

ICCZ

Propagation delay

An to Bn or Bn to An

Input capacitance

I/O capacitance

Total supply current

CONDITIONS

Tamb = 25°C; GND = 0V

CL = 50pF;

VCC = 3.3 V

VI = 0 V or 3.0 V

Outputs disabled; VI/O = 0 V or 3.0 V

Outputs disabled; VCC = 3.6 V

TYPICAL

2.3

2.5

4

7

0.13

UNIT

ns

pF

pF

mA

ORDERING INFORMATION

PACKAGES

24-Pin Plastic SOL

24-Pin Plastic SSOP Type II

24-Pin Plastic TSSOP Type I

TEMPERATURE RANGE

–40°C to +85°C

–40°C to +85°C

–40°C to +85°C

OUTSIDE NORTH AMERICA

74LVT623 D

74LVT623 DB

74LVT623 PW

NORTH AMERICA

74LVT623 D

74LVT623 DB

74LVT623PW DH

DWG NUMBER

SOT137-1

SOT340-1

SOT355-1

PIN CONFIGURATION

LOGIC SYMBOL

1

OEAB

19

OEBA

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

SA00189

2

A0

3

A1

4

A2

5

A3

6

A4

7

A5

8

A6

9

A7

18

B0

17

B1

16

B1

15

B3

14

B4

13

B5

12

B6

11

B7

SA00195

1999 Jul 09

2

853–2164 21957

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