DM74LS109A

更新时间： 2024-11-03 23:00:43

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		触发器
页数	文件大小	规格书
5页	55K
描述
Dual Positive-Edge-Triggered J-K Flip-Flop with Preset, Clear, and Complementary Outputs

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数据手册

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DM74LS109A 数据手册

June 1986

Revised March 2000

DM74LS109A

Dual Positive-Edge-Triggered J-K Flip-Flop with

Preset, Clear, and Complementary Outputs

General Description

This device contains two independent positive-edge-trig-

gered J-K flip-flops with complementary outputs. The J and

K data is accepted by the flip-flop on the rising edge of the

clock pulse. The triggering occurs at a voltage level and is

not directly related to the transition time of the rising edge

of the clock. The data on the J and K inputs may be

changed while the clock is HIGH or LOW as long as setup

and hold times are not violated. A low logic level on the

preset or clear inputs will set or reset the outputs regard-

less of the logic levels of the other inputs.

Ordering Code:

Order Number Package Number

Package Description

DM74LS109AM

DM74LS109AN

M16A

N16E

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow

16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Function Table

Inputs

Outputs

CLR

CLK

H (Note 1) H (Note 1)

↑

Toggle

↑

Q₀

H = HIGH Logic Level

L = LOW Logic Level

X = Either LOW or HIGH Logic Level

↑ = Rising Edge of Pulse

= The output logic level of Q before the indicated input conditions were

established.

Toggle = Each output changes to the complement of its previous level on

each active transition of the clock pulse.

Note 1: This configuration is nonstable; that is, it will not persist when pre-

set and/or clear inputs return to their inactive (HIGH) state.

DS006368

www.fairchildsemi.com

12 3 4 5

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与DM74LS109A相关器件

型号	品牌	获取价格	描述	数据表
DM74LS109AJ	NSC	获取价格	Dual Positive-Edge-Triggered J-K Flip-Flops with Preset, Clear, and Complementary Outputs
DM74LS109AM	FAIRCHILD	获取价格	Dual Positive-Edge-Triggered J-K Flip-Flop with Preset, Clear, and Complementary Outputs
DM74LS109AM	NSC	获取价格	Dual Positive-Edge-Triggered J-K Flip-Flops with Preset, Clear, and Complementary Outputs
DM74LS109AMX	FAIRCHILD	获取价格	J-K-Type Flip-Flop
DM74LS109AN	FAIRCHILD	获取价格	Dual Positive-Edge-Triggered J-K Flip-Flop with Preset, Clear, and Complementary Outputs
DM74LS109AN	NSC	获取价格	Dual Positive-Edge-Triggered J-K Flip-Flops with Preset, Clear, and Complementary Outputs
DM74LS109AN/A+	ETC	获取价格	J-K-Type Flip-Flop
DM74LS109AN/B+	ETC	获取价格	J-K-Type Flip-Flop
DM74LS109J/A+	ETC	获取价格	J-K-Type Flip-Flop
DM74LS109N	ROCHESTER	获取价格	J-Kbar Flip-Flop