© Nexperia B.V. 2017. All rights reserved

74LVC_LVCH245A

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

Product data sheet

Rev. 8 — 28 June 2013

3 of 18

Nexperia

74LVC245A; 74LVCH245A

Octal bus transceiver; 3-state

5.

Pinning information

5.1 Pinning

5.2 Pin description

(1) This is not a supply pin. The substrate is attached to this

pad using conductive die attach material. There is no

electrical or mechanical requirement to solder this pad.

However, if it is soldered, the solder land should remain

floating or be connected to GND.

Fig 3.

Pin configuration for SO20 and (T)SSOP20

Fig 4.

Pin configuration for DHVQFN20 and

DHXQFN20

74LVC245A

74LVCH245A

DIR

VCC

A0

OE

A1

B0

A2

B1

A3

B2

A4

B3

A5

B4

A6

B5

A7

B6

GND

B7

001aak292

1

2

3

4

5

6

7

8

9

10

12

11

14

13

16

15

18

17

20

19

001aak293

74LVC245A

74LVCH245A

Transparent top view

B6

A6

A7

B5

A5

B4

A4

B3

A3

B2

A2

B1

A1

B0

A0

OE

9

12

8

13

7

14

6

15

5

16

4

17

3

18

2

19

terminal 1

index area

GND(1)

Table 2.

Pin description

Symbol

Pin

Description

DIR

1

direction control

A0 to A7

2, 3, 4, 5, 6, 7, 8, 9

data input/output

GND

10

ground (0 V)

B0 to B7

18, 17, 16, 15, 14, 13, 12, 11

data input/output

OE

19

output enable input (active LOW)

VCC

20

supply voltage