74ABT646A_3

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Product data sheet

Rev. 03 — 15 March 2010

2 of 19

NXP Semiconductors

74ABT646A

Octal bus transceiver/register; 3-state

3.

Ordering information

4.

Functional diagram

Table 1.

Ordering information

Type number

Package

Temperature

range

Name

Description

Version

74ABT646AD

−40 °C to +85 °C

SO24

plastic small outline package; 24 leads; body width 7.5 mm SOT137-1

74ABT646ADB

−40 °C to +85 °C

SSOP24

plastic shrink small outline package; 24 leads;

body width 5.3 mm

SOT340-1

74ABT646APW

−40 °C to +85 °C

TSSOP24

plastic thin shrink small outline package; 24 leads;

body width 4.4 mm

SOT355-1

Fig 1.

Logic symbol

Fig 2.

IEC logic symbol

001aae891

22

21

SBA

OE

B0 B1 B2 B3 B4 B5 B6 B7

A0 A1 A2 A3 A4 A5 A6 A7

20

19

18

17

16

15

14

13

456789

10

11

23

CPBA

3

DIR

SAB

CPAB

2

1

001aae892

519

≥1

≥1

6

6

1

4D

5D

17

7

C4

C5

3EN2[AB]

G7

3EN1[BA]

618

717

816

915

10

14

11

13

1

2

3

2

23

G6

22

1

4

G3

21

20