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HD74HCT237 Datasheet, PDF (4/8 Pages) Hitachi Semiconductor – 3-to-8-line Decoder/Demultiplexer with Address Latch
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 = –40 to
+85°C
Min Typ Max Min Max
— 21 37 — 46
— 25 37 — 46
— 18 29 — 36
— 14 29 — 36
— 16 29 — 36
— 18 29 — 36
— 22 38 — 48
— 27 38 — 48
16 8 — 20 —
20 6 — 25 —
5 –1 — 5 —
— 5 15 — 19
— 5 10 — 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
—
4