HD74BC640A

Rev.2.00, Jul.16.2004, page 2 of 7

Pin Arrangement

(Top view)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

G

B1

B2

B3

B4

B5

B6

B7

B8

DiR

A1

A2

A3

A4

A5

A6

A7

A8

GND

Absolute Maximum Ratings

Item

Symbol

Rating

Unit

Supply voltage

V

CC

–0.5 to +7.0

V

Input diode current

I

IK

±30

mA

Input voltage

V

IN

–0.5 to +7.5

V

Output voltage

V

OUT

–0.5 to +7.5

V

Off state output voltage

V

OUT(off)

–0.5 to +5.5

V

Storage temperature

Tstg

–65 to +150

°C

Note:

1. The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two

of which may be realized at the same time.

Recommended Operating Conditions

Item

Symbol

Min

Typ

Max

Unit

Supply voltage

V

CC

4.5

5.0

5.5

V

Input voltage

V

IN

0—

V

CC

V

Ouput voltage

V

OUT

0—

V

CC

V

Operating temperature

Topr

–40

—

85

°C

Input rise/fall time*

1

t

0—

8ns/V

Note:

1. This item guarantees maximum limit when one input switches.

Waveform: Refer to test circuit of switching characteristics.