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IN74HC21A Datasheet(PDF) 4 Page - Integral Corp.

Part No. IN74HC21A
Description  Dual 4-Input AND Gate
Download  5 Pages
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Maker  INTEGRAL [Integral Corp.]
Homepage  http://www.iksemi.com/
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IN74HC21A Datasheet(HTML) 4 Page - Integral Corp.

   
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IN74HC21A
4
INTEGRAL
AC ELECTRICAL CHARACTERISTICS (C
L=50pF,Input t r=tf=6.0 ns)
VCC
Guaranteed Limit
Symbol
Parameter
V
25
°C to
-55
°C
≤85°C
≤125°C
Unit
tPHL, tPLH
Maximum Propagation Delay (Figure 1)
2.0
4.5
6.0
110
22
19
140
28
24
165
33
28
ns
tTHL, tTLH
Maximum Output Transition Time
(Figure 1)
2.0
4.5
6.0
75
15
13
95
19
16
110
22
19
ns
CIN
Maximum Input Capacitance
5.0
10
10
10
pF
Power Dissipation Capacitance (Per Gate)
TA=25
°C,V
CC=5.0 V
CPD
Used to determine the no-load dynamic power
consumption:
PD=CPDVCC
2f+I
CCVCC
50
pF
Figure 1. Switching Waveforms
Figure 2. Test Circuit
0.1
0.1
0.9
0.9
V
2
V
2
V
1
t
PHL
t
HL
t
PLH
t
LH
GND
V
2
V
2
V = 0.5 V
1
CC
Input
Output
0.1
0.1
0.9
0.9
t
THL
t
TLH
0 V
V
CC
PULSE
GENERATOR
DEVICE
UNDER
TEST
V
CC
V
I
V
O
C
50 pF
L
R
T
Termination resistance RT – should
be equal to ZOUT of pulse
generators


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