HD74AC539 查看數據表（PDF） - Hitachi -> Renesas Electronics

零件编号

产品描述 (功能)

生产厂家

HD74AC539

Dual 1-of-4 Decoder with 3-State Output

Hitachi -> Renesas Electronics 

HD74AC539

Pin Arrangement

O2b 1

O1b 2

O0b 3

Pb 4

OEb 5

A0a 6

A1a 7

O3a 8

O2a 9

GND 10

Logic Symbol

(Top view)

20 VCC

19 O3b

18 A1b

17 A0b

16 Eb

15 Ea

14 OEa

13 Pa

12 O0d

11 O1a

P A0 A1

E

DECODER a

OE

O0 O1 O2 O3

P A0 A1

E

DECODER b

OE

O0 O1 O2 O3

2

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