SN74LS161AND

更新时间： 2024-11-24 13:13:51

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		计数器
页数	文件大小	规格书
6页	84K
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中文翻译

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数据手册

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SN74LS161AND 数据手册

SN54/74LS160A

SN54/74LS161A

SN54/74LS162A

SN54/74LS163A

BCD DECADE COUNTERS/

4-BIT BINARY COUNTERS

The LS160A/161A/162A/163A are high-speed 4-bit synchronous count-

ers. They are edge-triggered, synchronously presettable, and cascadable

MSI building blocks for counting, memory addressing, frequency division and

other applications. The LS160A and LS162A count modulo 10 (BCD). The

LS161A and LS163A count modulo 16 (binary.)

BCD DECADE COUNTERS/

4-BIT BINARY COUNTERS

The LS160A and LS161A have an asynchronous Master Reset (Clear)

input that overrides, and is independent of, the clock and all other control

inputs. TheLS162AandLS163AhaveaSynchronousReset(Clear)inputthat

overrides all other control inputs, but is active only during the rising clock

edge.

LOW POWER SCHOTTKY

BCD (Modulo 10)

LS160A

Binary (Modulo 16)

LS161A

J SUFFIX

CERAMIC

CASE 620-09

Asynchronous Reset

Synchronous Reset

LS162A

LS163A

• Synchronous Counting and Loading

• Two Count Enable Inputs for High Speed Synchronous Expansion

• Terminal Count Fully Decoded

• Edge-Triggered Operation

• Typical Count Rate of 35 MHz

• ESD > 3500 Volts

N SUFFIX

PLASTIC

CASE 648-08

CONNECTION DIAGRAM DIP (TOP VIEW)

CET

D SUFFIX

SOIC

CASE 751B-03

NOTE:

The Flatpak version

has the same pinouts

(Connection Diagram) as

the Dual In-Line Package.

ORDERING INFORMATION

*MR for LS160A and LS161A

*SR for LS162A and LS163A

SN54LSXXXJ Ceramic

SN74LSXXXN Plastic

SN74LSXXXD SOIC

CEP GND

PIN NAMES

LOADING (Note a)

LOGIC SYMBOL

HIGH

LOW

Parallel Enable (Active LOW) Input

Parallel Inputs

Count Enable Parallel Input

Count Enable Trickle Input

Clock (Active HIGH Going Edge) Input

Master Reset (Active LOW) Input

Synchronous Reset (Active LOW) Input

Parallel Outputs (Note b)

1.0 U.L.

0.5 U.L.

1.0 U.L.

0.5 U.L.

1.0 U.L.

10 U.L.

0.5 U.L.

0.25 U.L.

0.5 U.L.

0.25 U.L.

0.5 U.L.

P –P

CEP

CET

2 3

Q –Q

5 (2.5) U.L.

Terminal Count Output (Note b)

14 13 12 11

= PIN 16

NOTES:

a) 1 TTL Unit Load (U.L.) = 40 µA 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)

Temperature Ranges.

GND = PIN 8

*MR for LS160A and LS161A

*SR for LS162A and LS163A

FAST AND LS TTL DATA

5-1

12 3 4 5 6

中文翻译

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与SN74LS161AND相关器件

型号	品牌	获取价格	描述	数据表
SN74LS161ANE4	TI	获取价格	SYNCHRONOUS 4-BIT COUNTERS
SN74LS161ANS	MOTOROLA	获取价格	Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, TTL,
SN74LS161ANSR	TI	获取价格	SYNCHRONOUS 4-BIT COUNTERS
SN74LS161D	MOTOROLA	获取价格	BCD DECADE COUNTERS/ 4-BIT BINARY COUNTERS
SN74LS161D	ONSEMI	获取价格	BCD DECADE COUNTERS/ 4-BIT BINARY COUNTERS
SN74LS161N	ONSEMI	获取价格	BCD DECADE COUNTERS/ 4-BIT BINARY COUNTERS
SN74LS161N	MOTOROLA	获取价格	BCD DECADE COUNTERS/ 4-BIT BINARY COUNTERS
SN74LS162A	TI	获取价格	SYNCHRONOUS 4-BIT COUNTERS
SN74LS162A	MOTOROLA	获取价格	BCD DECADE COUNTERS/ 4-BIT BINARY COUNTERS
SN74LS162AD	TI	获取价格	SYNCHRONOUS 4-BIT COUNTERS

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