參數(shù)資料
型號： 935189140112
廠商： NXP SEMICONDUCTORS
元件分類： 諧振器
英文描述： HCT SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16
封裝： PLASTIC, TSSOP-16
文件頁數(shù)： 8/13頁
文件大?。?/td> 142K
代理商： 935189140112
September 1993
4
Philips Semiconductors
Product specication
Dual retriggerable precision monostable
multivibrator
74HC/HCT4538
Fig.4 Functional diagram.
Fig.5
Connection of the external timing
components Rt and Ct.
(1) Connect CTC (pins 1 and 15) to GND (pin 8).
FUNCTION TABLE
Notes
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
↑ = LOW-to-HIGH transition
↓ = HIGH-to-LOW transition
= one HIGH level output pulse
= one LOW level output pulse
INPUTS
OUTPUTS
nA0
nA1
nRD
nQ
↓
LH
H
↑
H
XX
L
H
Fig.6 Timing diagram.
(1) Positive edge triggering.
(2) Positive edge retriggering (pulse
lengthening).
(3) Negative edge triggering.
(4) Reset (pulse shortening).
(5) Vref1 and Vref2 are internal reference voltages.
(6) T = 0.7
× Rt × Ct (see also Fig.5).
相關(guān)PDF資料
PDF描述
935187530118 HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16
933669840652 HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDIP16
935186970112 HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16
935188780118 HCT SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16
933715390112 HCT SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16
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