CD74HC4538-Q1 Datasheet, PDF (2/16 Pages) Texas Instruments – HIGH-SPEED CMOS LOGIC DUAL RETRIGGERABLE PRECISION MONOSTABLE MULTIVIBRATOR

CD74HC4538-Q1
HIGH-SPEED CMOS LOGIC DUAL RETRIGGERABLE
PRECISION MONOSTABLE MULTIVIBRATOR
SCLS595A − NOVEMBER 2004 − REVISED APRIL 2008
FUNCTION TABLE
INPUTS
OUTPUTS
R
A
B
Q
Q
L
X
X
L
H
X
H
X
L
H
X
X
L
L
H
H
L
↓
H
↑
H
NOTE: H = High voltage level
L = Low voltage level
↑ = Transition from low to high level
↓ = Transition from high to low level
= one high-level pulse
= one low-level pulse
X = Irrelevant
logic diagram (positive logic)
V_CC
V_CC
16
V_CC
R_X
2(14)
C_X
1(15)
V_CC
R1
+ Comp II
−
R2
8
V_CC
V_CC
High Z
3(13)
4(12)
5(11)
V_CC
D R1 R2 _Q
FF
CL _CL
Q
6(10)
Q
7(9)
Q
2
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