Philips Semiconductors

Product specification

74F393

Dual 4-bit binary ripple counter

1988 Nov 01

3

LOGIC DIAGRAM

Q0n

3, 11

Q1n

4, 10

Q2n

5, 9

Q3n

6, 8

2, 12

CPn

MRn

VCC = Pin 14

GND = Pin 7

SF00707

CP

Q

RD

J

CP

Q

RD

J

CP

Q

RD

J

CP

Q

RD

J

1, 13

Q

KQ

KQ

K

Q

K

FUNCTION TABLE

COUNT

OUTPUTS

COUNT

0

L

L

L

L

1

H

LLL

2

L

HL

L

3

H

HL

L

4

L

L

H

L

5

H

LHL

6

L

HH

L

7

H

HH

L

8

L

L

L

H

9

H

LL

H

10

L

HLH

11

H

HLH

12

L

L

H

H

13

H

LH

H

14

L

HHH

15

H

H

H

H

H = High voltage level transition

L = Low voltage level

ABSOLUTE MAXIMUM RATINGS

(Operation beyond the limits set forth in this table may impair the useful life of the device.

Unless otherwise noted these limits are over the operating free-air temperature range.)

SYMBOL

PARAMETER

RATING

UNIT

Supply voltage

–0.5 to +7.0

V

Input voltage

–0.5 to +7.0

V

Input current

–30 to +5

mA

Voltage applied to output in High output state

V

Current applied to output in Low output state

40

mA

Operating free-air temperature range

0 to +70

°C

Storage temperature range

–65 to +150

°C

RECOMMENDED OPERATING CONDITIONS

SYMBOL

PARAMETER

LIMITS

UNIT

SYMBOL

PARAMETER

MIN

NOM

MAX

UNIT

Supply voltage

4.5

5.0

5.5

V

High-level input voltage

2.0

V

Low-level input voltage

0.8

V

Input clamp current

–18

mA

High-level output current

–1

mA

Low-level output current

20

mA

Operating free-air temperature range

0

70

°C