MC10H165(2000) 데이터 시트보기 (PDF) - ON Semiconductor

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MC10H165
(Rev.:2000)

8−Input Priority Encoder

ON Semiconductor 

MC10H165

8–INPUT PRIORITY ENCODER

The MC10H165 is a device designed to encode eight

inputs to a binary coded output. The output code is that of the

highest order input. Any input of lower priority is ignored.

Each output incorporates a latch allowing synchronous

operation. When the clock is low the outputs follow the

inputs and latch when the clock goes high. This device is

very useful for a variety of applications in checking system

status in control processors, peripheral controllers, and

testing systems.

The input is active when high, (e.g., the three binary

outputs are low when input D0 is high). The Q3 output is

high when any input is high. This allows direct extension

into another priority encoder when more than eight inputs

are necessary. The MC10H165 can also be used to develop

binary codes from random logic inputs, for addressing

ROMs, RAMs, or for multiplexing data.

LOGIC DIAGRAM

C4

VCC1 = PIN 1

VCC2 = PIN 16

D0 5

. VEE = PIN 8

D1 7

D2 13

D3 10

D4 11

D5 12

D6 9

D7 6

3 Q0

2 Q1

15 Q2

14 Q3

Numbers at ends of terminals denote pin numbers for L and P packages.

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