74LV123D/AUJ(2016) 查看數據表（PDF） - NXP Semiconductors.
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74LV123D/AUJ Datasheet PDF : 23 Pages
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Nexperia
74LV123
Dual retriggerable monostable multivibrator with reset
5. Pinning information
5.1 Pinning
$
%
5'
4
4
&(;7
5(;7&(;7
*1'
/9
9&&
5(;7&(;7
&(;7
4
4
5'
%
$
DDJ
Fig 5. Pin configuration for SO16 and (T)SSOP16
/9
WHUPLQDO
LQGH[DUHD
%
5'
4
4
&(;7
5(;7&(;7
9&&
5(;7&(;7
&(;7
4
4
5'
%
DDJ
7UDQVSDUHQWWRSYLHZ
(1) This is not a supply pin. The substrate is attached to this
pad using conductive die attach material. There is no
electrical or mechanical requirement to solder this pad.
However, if it is soldered, the solder land should remain
floating or be connected to VCC.
Fig 6. Pin configuration for DHVQFN16
5.2 Pin description
Table 2. Pin description
Symbol
Pin
1A
1
1B
2
1RD
3
1Q
4
2Q
5
2CEXT
6
2REXT/CEXT
7
GND
8
2A
9
2B
10
2RD
11
2Q
12
1Q
13
1CEXT
14
1REXT/CEXT
15
VCC
16
Description
negative-edge triggered input 1
positive-edge triggered input 1
direct reset LOW and positive-edge triggered input 1
active LOW output 1
active HIGH output 2
external capacitor connection 2
external resistor and capacitor connection 2
ground (0 V)
negative-edge triggered input 2
positive-edge triggered input 2
direct reset LOW and positive-edge triggered input 2
active LOW output 2
active HIGH output 1
external capacitor connection 1
external resistor and capacitor connection 1
supply voltage
74LV123
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 4 March 2016
© Nexperia B.V. 2017. All rights reserved
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