74LVT623 datasheet(2/10 Pages) PHILIPS

Part #	74LVT623

Description	3.3 V octal transceiver with dual enable 3-State

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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Philips Semiconductors

Product specification

74LVT623

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

2

1999 Jul 09

853–2164 21957

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

CONDITIONS

Tamb = 25°C; GND = 0V

TYPICAL

UNIT

tPLH

tPHL

Propagation delay

An to Bn or Bn to An

CL = 50pF;

VCC = 3.3 V

2.3

2.5

ns

CIN

Input capacitance

VI = 0 V or 3.0 V

4

pF

CI/O

I/O capacitance

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

7

pF

ICCZ

Total supply current

Outputs disabled; VCC = 3.6 V

0.13

mA

ORDERING INFORMATION

PACKAGES

TEMPERATURE RANGE

OUTSIDE NORTH AMERICA

NORTH AMERICA

DWG NUMBER

24-Pin Plastic SOL

–40

°C to +85°C

74LVT623 D

SOT137-1

24-Pin Plastic SSOP Type II

–40

°C to +85°C

74LVT623 DB

SOT340-1

24-Pin Plastic TSSOP Type I

–40

°C to +85°C

74LVT623 PW

74LVT623PW DH

SOT355-1

PIN CONFIGURATION

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

SA00189

OEAB

A0

A1

A2

A3

A4

A5

A6

A7

GND

VCC

OEBA

B0

B1

B2

B3

B4

B5

B6

B7

LOGIC SYMBOL

OEBA

19

SA00195

OEAB

A0

A1

A2

A3

A4

A5

A6

A7

1

2

3

4

5

6

7

8

9

B0

B1

B3

B4

B5

B6

B7

18

17

16

15

14

13

12

11

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