參數(shù)資料
型號(hào): 74HC123
廠商: NXP Semiconductors N.V.
英文描述: Dual retriggerable monostable multivibrator with reset
中文描述: 雙retriggerable單穩(wěn)態(tài)觸發(fā)器的復(fù)位
文件頁(yè)數(shù): 3/17頁(yè)
文件大小: 124K
代理商: 74HC123
1998 Jul 08
3
Philips Semiconductors
Product specification
Dual retriggerable monostable
multivibrator with reset
74HC/HCT123
ORDERING INFORMATION
PIN DESCRIPTION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
74HC123N;
74HCT123N
74HC123D;
74HCT123D
74HC123DB;
74HCT123DB
74HC123PW;
74HCT123PW
DIP16
plastic dual in-line package; 16 leads (300 mil); long body
SOT38-1
SO16
plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
SSOP16
plastic shrink small outline package; 16 leads; body width 5.3 mm
SOT338-1
TSSOP16
plastic thin shrink small outline package; 16 leads; body width 4.4 mm
SOT403-1
PIN NO.
SYMBOL
NAME AND FUNCTION
1, 9
2, 10
3, 11
4, 12
7
8
13, 5
14, 6
15
16
1A, 2A
1B, 2B
1R
D
, 2R
D
1Q, 2Q
2R
EXT
/C
EXT
GND
1Q, 2Q
1C
EXT
, 2C
EXT
1R
EXT
/C
EXT
V
CC
trigger inputs (negative-edge triggered)
trigger inputs (positive-edge triggered)
direct reset LOW and trigger action at positive edge
outputs (active LOW)
external resistor/capacitor connection
ground (0 V)
outputs (active HIGH)
external capacitor connection
external resistor/capacitor connection
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
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