MC74HC161A 데이터 시트보기 (PDF) - ON Semiconductor

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MC74HC161A

Presettable Counters

ON Semiconductor 

MC74HC161A, MC74HC163A

PRESET

DATA

INPUTS

P0 3

P1 4

P2 5

P3 6

CLOCK 2

COUNT

ENABLES

RESET 1

LOAD 9

ENABLE P 7

ENABLE T 10

14 Q0

13 Q1

12 Q2

11 Q3

BCD OR

BINARY

OUTPUT

15 RIPPLE

CARRY

OUT

PIN 16 = VCC

PIN 8 = GND

Figure 2. Logic Diagram

ÎÎÎÎÎÎÎÎÎÎÎ DEVICE/MODE TABLE

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Device

Count

Mode

Reset Mode

ÎÎÎÎÎÎÎÎÎÎÎ HC161A

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ HC163A

Binary

Binary

Asynchronous

Synchronous

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