SN74LS193MEL ON Semiconductor, SN74LS193MEL Datasheet

SN74LS193MEL

Manufacturer Part Number

SN74LS193MEL

Description

PRESETTABLE BCD/DECADE UP/DOWN COUNTER PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER

Manufacturer

ON Semiconductor

Datasheet

1.SN74LS193MEL.pdf (7 pages)

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PRESETTABLE BCD/DECADE

UP/DOWN COUNTER

PRESETTABLE 4-BIT BINARY

UP/DOWN COUNTER

SN54/74LS193 is an UP/DOWN MODULO-16 Binary Counter. Separate

Count Up and Count Down Clocks are used and in either counting mode the

circuits operate synchronously. The outputs change state synchronous with

the LOW-to-HIGH transitions on the clock inputs.

provided which are used as the clocks for a subsequent stages without extra

logic, thus simplifying multistage counter designs. Individual preset inputs

allow the circuits to be used as programmable counters. Both the Parallel

Load (PL) and the Master Reset (MR) inputs asynchronously override the

clocks.

NOTES:

a. 1 TTL Unit Load (U.L.) = 40 A HIGH/1.6 mA LOW.

b. The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)

PIN NAMES

CP U

CP D

P n

Q n

TC D

TC U

Temperature Ranges.

The SN54/74LS192 is an UP/DOWN BCD Decade (8421) Counter and the

Separate Terminal Count Up and Terminal Count Down outputs are

Low Power . . . 95 mW Typical Dissipation

High Speed . . . 40 MHz Typical Count Frequency

Synchronous Counting

Asynchronous Master Reset and Parallel Load

Individual Preset Inputs

Cascading Circuitry Internally Provided

Input Clamp Diodes Limit High Speed Termination Effects

V CC

P 1

Q 1

P 0

Count Up Clock Pulse Input

Count Down Clock Pulse Input

Asynchronous Master Reset (Clear) Input

Asynchronous Parallel Load (Active LOW) Input

Parallel Data Inputs

Flip-Flop Outputs (Note b)

Terminal Count Down (Borrow) Output (Note b)

Terminal Count Up (Carry) Output (Note b)

CONNECTION DIAGRAM DIP (TOP VIEW)

Q 0

TC D

CP D

TC U

CP U

Q 2

P 2

Q 3

GND

P 3

FAST AND LS TTL DATA

NOTE:

The Flatpak version

has the same pinouts

(Connection Diagram) as

the Dual In-Line Package.

0.5 U.L.

10 U.L.

HIGH

LOADING (Note a)

5-1

5 (2.5) U.L.

0.25 U.L.

LOW

PRESETTABLE BCD / DECADE

PRESETTABLE 4-BIT BINARY

SN54/74LS192

SN54/74LS193

ORDERING INFORMATION

UP/ DOWN COUNTER

LOW POWER SCHOTTKY

SN54LSXXXJ

SN74LSXXXN

SN74LSXXXD

CP U

CP D

LOGIC SYMBOL

Q 0 Q 1 Q 2 Q 3

V CC = PIN 16

GND = PIN 8

P 0

P 1

P 2

Ceramic

Plastic

SOIC

CASE 751B-03

CASE 620-09

CASE 648-08

CERAMIC

N SUFFIX

D SUFFIX

J SUFFIX

PLASTIC

P 3

SOIC

TC D

TC U

Related parts for SN74LS193MEL

SN74LS193MEL Summary of contents

Page 1

PRESETTABLE BCD/DECADE UP/DOWN COUNTER PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER The SN54/74LS192 is an UP/DOWN BCD Decade (8421) Counter and the SN54/74LS193 is an UP/DOWN MODULO-16 Binary Counter. Separate Count Up and Count Down Clocks are used and in either counting ...

Page 2

SN54/74LS192 SN54/74LS193 STATE DIAGRAMS LS192 LOGIC DIAGRAMS (LOAD (UP COUNT ...

Page 3

LOGIC DIAGRAMS (continued (LOAD (UP COUNT (DOWN COUNT (CLEAR PIN 16 GND = ...

Page 4

SN54/74LS192 SN54/74LS193 FUNCTIONAL DESCRIPTION The LS192 and LS193 are Asynchronously Presettable Decade and 4-Bit Binary Synchronous UP / DOWN (Revers- able) Counters. The operating modes of the LS192 decade counter and the LS193 binary counter are identical, with the only ...

Page 5

SN54/74LS192 SN54/74LS193 GUARANTEED OPERATING RANGES Symbol Parameter V CC Supply Voltage T A Operating Ambient Temperature Range I OH Output Current — High I OL Output Current — Low DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE Symbol Parameter ...

Page 6

SN54/74LS192 SN54/74LS193 AC SETUP REQUIREMENTS ( Symbol Parameter t W Any Pulse Width t s Data Setup Time t h Data Hold Time t rec Recovery Time DEFINITIONS OF TERMS SETUP TIME ...

Page 7

SN54/74LS192 SN54/74LS193 1 PLH t PHL 1.3 V Figure PLH t ...

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