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74AHCT595S16-13 其他数据使用手册 - Diodes（美台）
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Diodes（美台）
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移位寄存器
封装:
SOIC-16
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74AHCT595S16-13 编带
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74AHCT595S16-13数据手册
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若手册格式错乱，请下载阅览PDF原文件
74AHCT595
Document number: DS35487 Rev. 3 - 2
3 of 10
www.diodes.com
June 2013
© Diodes Incorporated
74AHCT595
Functional Description and Timing Diagram
Control Input Output
Function
SHCP STCP OE MR DS Q7S Qn
X X L L
L NC
Low-level asserted on MR clears shift register.
Storage register is unchanged
X
L L
L L
Empty shift register transferred to storage register
X X H L
L Z
Shift register remains clear;: All Q ouputs in Z state.
X L H
Q6S NC
HIGH is shifted into first stage of Shift Register Contents of each
register shifted to next register
The content of Q6S has been shifted to Q7S and now appears on
device pin Q7S
X
L H
NC QnS
Contents of shift register copied to storage register. With output now
in active state the storage resister contents appear on Q outputs.
L H
Q6S QnS
Contents of shift register copied to output register then shift register
shifted.
H=HIGH voltage state
L=LOW voltage state
=LOW to HIGH transition
X= don’t care – high or low (not floating)
NC= No change
Z= high-impedance state
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