SN74LS74

更新时间： 2024-09-28 23:03:15

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		触发器
页数	文件大小	规格书
3页	77K
描述
DUAL D-TYPE POSITIVE EDGE-TRIGGERED FLIP-FLOP

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中文翻译

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数据手册

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SN74LS74 数据手册

SN54/74LS74A

DUAL D-TYPE POSITIVE

EDGE-TRIGGERED FLIP-FLOP

The SN54/74LS74A dual edge-triggered flip-flop utilizes Schottky TTL cir-

cuitry to produce high speed D-type flip-flops. Each flip-flop has individual

clear and set inputs, and also complementary Q and Q outputs.

Information at input D is transferred to the Q output on the positive-going

edge of the clock pulse. Clock triggering occurs at a voltage level of the clock

pulse and is not directly related to the transition time of the positive-going

pulse. When the clock input is at either the HIGH or the LOW level, the D input

signal has no effect.

DUAL D-TYPE POSITIVE

EDGE-TRIGGERED FLIP-FLOP

LOW POWER SCHOTTKY

J SUFFIX

CERAMIC

LOGIC DIAGRAM (Each Flip-Flop)

CASE 632-08

SET (S

)

4 (10)

5 (9)

CLEAR (CD)

1 (13)

N SUFFIX

PLASTIC

CASE 646-06

CLOCK

3 (11)

6 (8)

2 (12)

D SUFFIX

SOIC

CASE 751A-02

ORDERING INFORMATION

SN54LSXXJ

SN74LSXXN

SN74LSXXD

Ceramic

Plastic

SOIC

MODE SELECT — TRUTH TABLE

INPUTS

OUTPUTS

OPERATING MODE

Set

LOGIC SYMBOL

Reset (Clear)

*Undetermined

Load “1” (Set)

Load “0” (Reset)

* Both outputs will be HIGH while both S and C are LOW, but the output states are unpredictable

if S and C goHIGHsimultaneously. If the levels at the set and clear are near V maximumthen

we cannot guarantee to meet the minimum level for V

H, h = HIGH Voltage Level

L, I = LOW Voltage Level

X = Don’t Care

i, h (q) = Lower case letters indicate the state of the referenced input (or output) one set-up time

i, h (q) = prior to the HIGH to LOW clock transition.

= PIN 14

GND = PIN 7

FAST AND LS TTL DATA

5-72

12 3

中文翻译

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与SN74LS74相关器件

型号	品牌	获取价格	描述	数据表
SN74LS748D	MOTOROLA	获取价格	10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
SN74LS748J	MOTOROLA	获取价格	IC,ENCODER,LS-TTL,DIP,16PIN,CERAMIC
SN74LS748JDS	MOTOROLA	获取价格	Encoder, LS Series, 8-Bit, TTL, CDIP16, CERAMIC, DIP-16
SN74LS748JS	MOTOROLA	获取价格	LS SERIES, 8-BIT ENCODER, CDIP16, CERAMIC, DIP-16
SN74LS748N	MOTOROLA	获取价格	10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
SN74LS748NDS	MOTOROLA	获取价格	Encoder, LS Series, 8-Bit, TTL, PDIP16, PLASTIC PACKAGE-16
SN74LS748NS	MOTOROLA	获取价格	LS SERIES, 8-BIT ENCODER, PDIP16, PLASTIC, DIP-16
SN74LS74A	ONSEMI	获取价格	LOW POWER SCHOTTKY
SN74LS74A	TI	获取价格	DUAL D-TYPE POSITIVE-EDGE-TRIGGERED FLIP-FLOPS WITH PRESET AND CLEAR
SN74LS74AD	ONSEMI	获取价格	LOW POWER SCHOTTKY