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HD74HCT237 Datasheet, PDF (4/8 Pages) Hitachi Semiconductor – 3-to-8-line Decoder/Demultiplexer with Address Latch | |||
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HD74HCT237
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Item
Symbol
Propagation delay tPLH
time
t PHL
t PLH
t PHL
t PLH
t PHL
t PLH
t PHL
Pulse width
tw
Setup time
t su
Hold time
th
Output rise/fall
t TLH
time
t TH L
Input capacitance Cin
Ta = 25°C
Ta = â40 to
+85°C
Min Typ Max Min Max
â 21 37 â 46
â 25 37 â 46
â 18 29 â 36
â 14 29 â 36
â 16 29 â 36
â 18 29 â 36
â 22 38 â 48
â 27 38 â 48
16 8 â 20 â
20 6 â 25 â
5 â1 â 5 â
â 5 15 â 19
â 5 10 â 10
Unit
ns
ns
ns
ns
ns
ns
ns
ns
pF
Test Conditions
VCC (V)
4.5
A, B or C to Y
4.5
4.5
G2 to Y
4.5
4.5
G1 to Y
4.5
4.5
GL to Y
4.5
4.5
4.5
4.5
4.5
â
4
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