SN74LS259 datasheet(2/8 Pages) ONSEMI

Part #	SN74LS259

Description	LOW POWER SCHOTTKY

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SN74LS259

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2

CONNECTION DIAGRAM DIP (TOP VIEW)

Address Inputs

Data Input

Enable (Active LOW) Input

Clear (Active LOW) Input

Parallel Latch Outputs

A0, A1, A2

D

E

C

Q0 – Q7

0.5 U.L.

1.0 U.L.

0.5 U.L.

10 U.L.

0.25 U.L.

0.5 U.L.

0.25 U.L.

5 U.L.

NOTES:

a) 1 TTL Unit Load (U.L.) = 40

mA HIGH/1.6 mA LOW.

HIGH

LOW

(Note a)

LOADING

PIN NAMES

14

13

12

11

10

9

1234

5

6

7

16

15

8

VCC

Ao

C

E

DQ7

Q5

Q6

Q4

A1

A2

Q0

Q1

Q2

Q3 GND

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