74HCT123D(2009) 查看數據表（PDF） - NXP Semiconductors.
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74HCT123D Datasheet PDF : 24 Pages
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NXP Semiconductors
74HC123; 74HCT123
Dual retriggerable monostable multivibrator with reset
1 1A
9 2A
2 1B
10 2B
3 1RD
11 2RD
Fig 2. Logic symbol
1CEXT 14
2CEXT 6
1REXT/CEXT 15
2REXT/CEXT 7
S
Q
T
Q
RD
1Q 13
2Q 5
1Q 4
2Q 12
mna515
14
CX
15
RCX
13
1
&
2
4
3
R
6
CX
7
RCX
5
9
&
10
12
11
R
mna516
Fig 3. IEC logic symbol
nREXT/CEXT
VCC
nRD
R
R
CL
CL
VCC
VCC
R
CL
nA
nB
R
Fig 4. Logic diagram
74HC_HCT123_5
Product data sheet
CL
CL
Rev. 05 — 13 July 2009
nQ
nQ
mna518
© NXP B.V. 2009. All rights reserved.
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