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74LS73A: DescriptionDual Negative-Edge-Triggered Master-Slave J-K Flip-Flops with Clear and Complementary Outputs; File Size47KB，5 Pages; ManufacturerFairchild; Websitehttp://www.fairchildsemi.com/

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Dual Negative-Edge-Triggered Master-Slave J-K Flip-Flops with Clear and Complementary Outputs

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DM74LS73A Dual Negative-Edge-Triggered Master-Slave J-K Flip-Flops with Clear and Complementary Outputs

August 1986

Revised March 2000

DM74LS73A

Dual Negative-Edge-Triggered Master-Slave

J-K Flip-Flops with Clear and Complementary Outputs

General Description

This device contains two independent negative-edge-trig-

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

K data is processed by the flip-flops on the falling edge of

the clock pulse. The clock triggering occurs at a voltage

level and is not directly related to the transition time of the

negative going edge of the clock pulse. The data on the J

and K inputs is allowed to change while the clock is HIGH

or LOW without affecting the outputs as long as setup and

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

input will reset the outputs regardless of the levels of the

other inputs.

Ordering Code:

Order Number

DM74LS73AM

DM74LS73AN

Package Number

M14A

N14A

Package Description

14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow

14-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

CLR

CLK

↓

Toggle

Outputs

HIGH Logic Level

LOW Logic Level

Either LOW or HIGH Logic Level

↓ =

Negative going edge of pulse.

The output logic level before the indicated input conditions were

established.

Toggle

Each output changes to the complement of its previous level on

each falling edge of the clock pulse.

DS006372

www.fairchildsemi.com

74LS73A Related Products

	74LS73A	74LS73	DM74LS73A	DM74LS73AM	DM74LS73AN
Description	Dual Negative-Edge-Triggered Master-Slave J-K Flip-Flops with Clear and Complementary Outputs	Dual Negative-Edge-Triggered Master-Slave J-K Flip-Flops with Clear and Complementary Outputs	Dual Negative-Edge-Triggered Master-Slave J-K Flip-Flops with Clear and Complementary Outputs	Dual Negative-Edge-Triggered Master-Slave J-K Flip-Flops with Clear and Complementary Outputs	Dual Negative-Edge-Triggered Master-Slave J-K Flip-Flops with Clear and Complementary Outputs

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