74ABT646A 查看數據表（PDF） - NXP Semiconductors.

零件编号

产品描述 (功能)

生产厂家

74ABT646A

Octal bus transceiver/register; 3-state

NXP Semiconductors. 

NXP Semiconductors

74ABT646A

Octal bus transceiver/register; 3-state

5. Pinning information

5.1 Pinning

Fig 4. Pin configuration

CPAB 1

SAB 2

DIR 3

A0 4

A1 5

A2 6

A3 7

A4 8

A5 9

A6 10

A7 11

GND 12

74ABT646A

24 VCC

23 CPBA

22 SBA

21 OE

20 B0

19 B1

18 B2

17 B3

16 B4

15 B5

14 B6

13 B7

001aae890

5.2 Pin description

Table 2. Pin description

Symbol

CPAB

SAB

DIR

A0, A1, A2, A3, A4, A5, A6, A7

GND

B0, B1, B2, B3, B4, B5, B6, B7

OE

SBA

CPBA

VCC

Pin

1

2

3

4, 5, 6, 7, 8, 9, 10, 11

12

20, 19, 18, 17, 16, 15, 14, 13

21

22

23

24

Description

A to B clock input

A to B select input

direction control input

data input/output (A side)

ground (0 V)

data input/output (B side)

output enable input (active LOW)

B to A select input

B to A clock input

positive supply voltage

74ABT646A_3

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 03 — 15 March 2010

© NXP B.V. 2010. All rights reserved.

4 of 19

Share Link: