7492 Binary Counters

HD74LS92P 7492
Binary Counters

The HD74LS92P is a high-speed, low-power Schottky device containing four master-slave flip-flops and additional gating. It is designed to provide a divide-by-two counter and a three-stage binary counter for divide-by-six operations. To achieve a maximum divide-by-twelve count length, the B input must be externally connected to the QA output.

Features

Dual Counter Functionality

High-Speed Operation

Low Power Consumption

Integrated Reset

Flexible Count Length

Specifications

Absolute Maximum Ratings

Item

Symbol

Ratings

Unit

Supply Voltage

V
CC

7.0

V

Input Voltage (Reset Inputs)

V
IN

7.0

V

Input Voltage (A, B Inputs)

V
IN

5.5

V

Operating Temperature Range

T
opr

-20 to +75

C

Storage Temperature Range

T
stg

-65 to +150

C

Recommended Operating Conditions

Item

Symbol

Min

Typ

Max

Unit

Supply Voltage

V
CC

4.75

5.00

5.25

V

High-level Output Current

I
OH

-400

A

Low-level Output Current

I
OL

8

mA

Count Frequency (A Input)

f
count

0

32

MHz

Count Frequency (B Input)

f
count

0

16

MHz

Pulse Width (A Input / Reset)

t
w

15

ns

Pulse Width (B Input)

t
w

30

ns

Electrical Characteristics (Ta = -20 to +75 C)

Item

Symbol

Min

Typ*

Max

Unit

Input Voltage (High)

V
IH

2.0

V

Input Voltage (Low)

V
IL

0.8

V

Output Voltage (High)

V
OH

2.7

V

Output Voltage (Low)

V
OL

0.5

V

Supply Current

I
CC

9

15

mA

Applications

Divide-by-Twelve Counter

Binary Counting

Digital Clocking

Reset-Controlled Logic

Package Content

1 x 7492 Binary Counters

DataSheet

HD74LS92