MC74AC4040NC

更新时间： 2024-11-19 13:11:19

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		计数器
页数	文件大小	规格书
5页	125K
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数据手册

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MC74AC4040NC 数据手册

12-STAGE

BINARY RIPPLE

COUNTER

The MC74AC4040 consists of 12 master-slave flip-flops. The output of each

flip-flop feeds the next and the frequency at each output is half that of the preceding

one. The state of the counter advances on the negative-going edge of the Clock

input. Reset is asynchronous and active-high.

State changes of the Q outputs do not occur simultaneously because of internal

ripple delays. Therefore, decoded output signals are subject to decoding spikes

and may have to be gated with the Clock of the MC74AC4040 for some designs.

• 140 MHz Typ. Clock

• Outputs Source/Sink 24 mA

• Operating Voltage Range: 2.0 to 6.0 V

• High Noise Immunity

N SUFFIX

CASE 648-08

PLASTIC

Q11

Q10

Q9 RESET CLK

D SUFFIX

CASE 751B-05

PLASTIC

Q12

GND

LOGIC DIAGRAM

FUNCTION TABLE

Clock

Reset

Output State

No Change

Advance to next state

All Outputs are low

CLOCK

Q10

Q11

Q12

RESET

PIN 16 = V

PIN 8 = GND

FACT DATA

5-1

12 3 4 5

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