參數(shù)資料
型號: MC74HC4040ADTR2
廠商: ON SEMICONDUCTOR
元件分類: 通用總線功能
英文描述: 12-Stage Binary Ripple Counter
中文描述: HC/UH SERIES, ASYN NEGATIVE EDGE TRIGGERED 12-BIT UP BINARY COUNTER, PDSO16
封裝: LEAD FREE, TSSOP-16
文件頁數(shù): 6/8頁
文件大?。?/td> 215K
代理商: MC74HC4040ADTR2
MC54/74HC4040A
MOTOROLA
High–Speed CMOS Logic Data
DL129 — Rev 6
6
Clock
Reset
Q1
1
2
4
8
16
32
64
128
256
512
1024
2048
4096
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q10
Q11
Figure 6. Timing Diagram
Q9
Q12
APPLICATIONS INFORMATION
Time–Base Generator
A 60Hz sinewave obtained through a 1.0 Megohm resistor
connected directly to a standard 120 Vac power line is
applied to the input of the MC54/74HC14A, Schmitt-trigger
inverter. The HC14A squares–up the input waveform and
feeds the HC4040A. Selecting outputs Q5, Q10, Q11, and
Q12 causes a reset every 3600 clocks. The HC20 decodes
the counter outputs, produces a single (narrow) output pulse,
and resets the binary counter. The resulting output frequency
is 1.0 pulse/minute.
HC4040A
Figure 7. Time–Base Generator
Clock
Q5
Q10
Q11
Q12
VCC
13
12
10
9
1
2
4
5
8
1/2
HC20
1/2
HC20
6
1/6 of HC14A
20pF
1.0M
1.0 Pulse/Minute
Output
VCC
120Vac
60Hz
相關(guān)PDF資料
PDF描述
MC74HC4040 12-Stage Binary Ripple Counter
MC74HC4040AD Dual Operational Amplifier; Package: SOIC; No of Pins: 8; Container: Rail
MC74HC4040ADR2 Dual Operational Amplifier; Package: SOIC; No of Pins: 8; Container: Tape & Reel
MC74HC4040ADT 12-Stage Binary Ripple Counter
MC74HC4040AN Quad Operational Amplifier
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