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Part Name
Description
HD74HC237 View Datasheet(PDF) - Renesas Electronics
Part Name
Description
MFG CO.
HD74HC237
3-to-8-line Decoder/Demultiplexer with Address Latch
Renesas Electronics
HD74HC237 Datasheet PDF : 10 Pages
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HD74HC237
AC Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Ta = 25
°
C
Ta = –40 to
+85
°
C
Item
Symbol
Propagation delay t
PLH
time
t
PHL
V
CC
(V)
2.0
4.5
6.0
Min Typ Max Min
— — 185 —
— 19 37 —
— — 31 —
Max Unit
230 ns
46
39
2.0
— — 145 — 180 ns
4.5
— 14 29 — 36
6.0
— — 25 — 31
2.0
— — 145 — 180 ns
4.5
— 14 29 — 36
6.0
— — 25 — 31
2.0
— — 190 — 240 ns
4.5
— 21 38 — 48
6.0
— — 32 — 41
Pulse width
t
w
2.0
80 — — 100 — ns
4.5
16 8 — 20 —
6.0
14 — — 17 —
Hold time
t
h
2.0
5 —— 5
— ns
4.5
5 –4 — 5
—
6.0
5 —— 5
—
Setup time
t
su
2.0
75 — — 95 — ns
4.5
15 4 — 19 —
6.0
13 — — 16 —
Output rise/fall
t
TLH
time
t
THL
2.0
— — 75 — 95 ns
4.5
— 5 15 — 19
6.0
— — 13 — 16
Input capacitance Cin
—
— 5 10 — 10 pF
Test Conditions
Data to Y
G
2
to Y
G
1
to Y
GL
to Y
5
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