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74HC123-Q100 Datasheet PDF : 23 Pages
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NXP Semiconductors
74HC123-Q100; 74HCT123-Q100
Dual retriggerable monostable multivibrator with reset
5. Pinning information
5.1 Pinning
+&4
+&74
$
%
5'
4
4
&(;7
5(;7&(;7
*1'
9&&
5(;7&(;7
&(;7
4
4
5'
%
$
DDD
Fig 5. Pin configuration for SO16 and TSSOP16
+&4
WHUPLQDO
LQGH[ DUHD
%
5'
4
4
&(;7
5(;7&(;7
9&&
5(;7&(;7
&(;7
4
4
5'
%
DDD
7UDQVSDUHQW WRS YLHZ
(1) The die substrate is attached to this pad using
conductive die attach material. It cannot be used as
supply pin or input.
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
74HC_HCT123_Q100
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 1 August 2012
© NXP B.V. 2012. All rights reserved.
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