Datasheet > SN74LS169D

SN74LS169D

更新时间： 2024-11-05 23:06:19

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		计数器
页数	文件大小	规格书
8页	274K
描述
BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS

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SN74LS169D 数据手册

SN54/74LS168

SN54/74LS169

BCD DECADE/MODULO

16 BINARY SYNCHRONOUS

BI-DIRECTIONAL COUNTERS

BCD DECADE/MODULO

16 BINARY SYNCHRONOUS

BI-DIRECTIONAL COUNTERS

The SN54/74LS168 and SN54/74LS169 are fully synchronous 4-stage

up/down counters featuring a preset capability for programmable operation,

carry lookahead for easy cascading and a U/D input to control the direction

of counting. The SN54/74LS168 counts in a BCD decade (8, 4, 2, 1)

sequence, while the SN54/74LS169 operates in a Modulo 16 binary

sequence. All state changes, whether in counting or parallel loading, are

initiated by the LOW-to-HIGH transition of the clock.

LOW POWER SCHOTTKY

• Low Power Dissipation 100 mW Typical

• High-Speed Count Frequency 30 MHz Typical

• Fully Synchronous Operation

• Full Carry Lookahead for Easy Cascading

• Single Up/Down Control Input

J SUFFIX

CERAMIC

CASE 620-09

• Positive Edge-Trigger Operation

• Input Clamp Diodes Limit High-Speed Termination Effects

N SUFFIX

PLASTIC

CASE 648-08

CONNECTION DIAGRAM DIP (TOP VIEW)

NOTE:

The Flatpak version

has the same pinouts

(Connection Diagram) as

the Dual In-Line Package.

D SUFFIX

SOIC

CASE 751B-03

ORDERING INFORMATION

SN54LSXXXJ

Ceramic

SN74LSXXXN Plastic

SN74LSXXXD SOIC

PIN NAMES

LOADING (Note a)

HIGH

LOW

CEP

CET

U/D

Count Enable Parallel (Active LOW) Input

0.5 U.L.

1.0 U.L.

0.5 U.L.

0.25 U.L.

0.5 U.L.

0.25 U.L.

LOGIC SYMBOL

Count Enable Trickle (Active LOW) Input

Clock Pulse (Active positive going edge) Input

Parallel Enable (Active LOW) Input

Up-Down Count Control Input

Parallel Data Inputs

P –P

Q –Q

Flip-Flop Outputs

Terminal Count (Active LOW) Output

10 U.L. 5 (2.5) U.L.

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)

b. Temperature Ranges.

FAST AND LS TTL DATA

5-302

12 3 4 5 6 7 8

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与SN74LS169D相关器件

型号	品牌	获取价格	描述	数据表
SN74LS169J	TI	获取价格	IC,COUNTER,UP/DOWN,4-BIT BINARY,LS-TTL,DIP,16PIN,CERAMIC
SN74LS169N	MOTOROLA	获取价格	BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS
SN74LS169N	ONSEMI	获取价格	BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS
SN74LS169NDS	MOTOROLA	获取价格	LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDIP16, PLASTIC
SN74LS16D	TI	获取价格	HEX INVERTER BUFFERS/DRIVERS WITH OPEN-COLLECTOR HIGH-VOLTAGE OUTPUTS
SN74LS16DR	TI	获取价格	HEX INVERTER BUFFERS/DRIVERS WITH OPEN-COLLECTOR HIGH-VOLTAGE OUTPUTS
SN74LS16N	TI	获取价格	HEX INVERTER BUFFERS/DRIVERS WITH OPEN-COLLECTOR HIGH-VOLTAGE OUTPUTS
SN74LS17	TI	获取价格	HEX BUFFERS/DRIVERS WITH OPEN-COLLECTOR HIGH-VOLTAGE OUTPUTS
SN74LS170	TI	获取价格	4-BY-4 REGISTER FILES WITH OPEN-COLLECTOR OUTPUTS
SN74LS170D	TI	获取价格	4-BY-4 REGISTER FILES WITH OPEN-COLLECTOR OUTPUTS