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| 74HC_HCT4538_15 Datasheet, PDF (13/24 Pages) NXP Semiconductors – Dual retriggerable precision monostable multivibrator | |||
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NXP Semiconductors
74HC4538; 74HCT4538
Dual retriggerable precision monostable multivibrator
VI
nCD input
VM
GND
tW
trec
tW
VI
nA input
VM
GND
tW
VI
nB input
VM
GND
VOH
trtrig
nQ, nQ output
VM
VOL
tW
001aak195
Fig 8.
Measurement points are given in Table 8.
Logic levels: VOL and VOH are typical output levels that occur with the output load.
Waveforms showing nA, nB, nQ, nQ pulse widths, recovery and retrigger times
Table 8. Measurement points
Type
Input
74HC4538
74HCT4538
VM
0.5VCC
1.3 V
Output
VM
0.5VCC
1.3 V
VX
0.1VCC
0.1VCC
VY
0.9VCC
0.9VCC
74HC_HCT4538_3
Product data sheet
Rev. 03 â 8 June 2009
© NXP B.V. 2009. All rights reserved.
13 of 24
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