參數(shù)資料
型號: 933670140112
廠商: NXP SEMICONDUCTORS
元件分類: 諧振器
英文描述: HCT SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDIP16
封裝: SOT-38-1, DIP-16
文件頁數(shù): 3/19頁
文件大?。?/td> 332K
代理商: 933670140112
December 1990
11
Philips Semiconductors
Product specication
Dual non-retriggerable monostable
multivibrator with reset
74HC/HCT221
AC WAVEFORMS
Fig.7 Output pulse control; nRD = HIGH.
Fig.8
Output pulse control using reset input nRD;
nA = LOW.
Fig.9
Waveforms showing the removal times;
nRD to nA or nB.
(1) HC
: VM =VM = 50%; VI = GND to VCC.
HCT : VM =VM = 1.3 V; VI = GND to 3 V.
Fig.10 Waveforms showing the triggering of One
Shot by input nA or input nB for one period
(tW) and minimum pulse widths of the trigger
inputs nA and nB.
(1) HC
: VM =VM = 50%; VI = GND to VCC.
HCT : VM =VM = 1.3 V; VI = GND to 3 V.
Fig.11 Waveforms showing the reset to nQ and nQ
output propagation delays.
(1) HC
: VM =VM = 50%; VI = GND to VCC.
HCT : VM =VM = 1.3 V; VI = GND to 3 V.
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