HD74HC192 Datasheet, PDF (8/13 Pages) Hitachi Semiconductor – Synchronous Up/Down Decade,4-bit Binary Counter(Dual Clock Line)

HD74HC192/HD74HC193
AC Characteristics (C_L = 50 pF, Input t_r = t_f = 6 ns)
Ta = 25°C
Ta = –40 to
+85°C
Item
Maximum clock
frequency
Symbol
f _max
V_CC (V)
2.0
4.5
Min Typ Max Min
——4 —
— — 20 —
Max Unit Test Conditions
3
MHz
16
6.0
— — 24 — 19
Propagation delay t_PLH
time
2.0
— — 140 — 175 ns Count up to Carry
4.5
— 14 28 — 35
6.0
— — 24 — 30
t _PHL
2.0
— — 130 — 165
4.5
— 15 26 — 33
6.0
— — 22 — 28
t _PLH
2.0
— — 130 — 165
4.5
— 14 26 — 33
Count down to Borrow
6.0
— — 22 — 28
t _PHL
2.0
— — 130 — 165
4.5
— 15 26 — 33
6.0
— — 22 — 28
t _PLH
2.0
— — 215 — 270
4.5
— 21 43 — 54
Count up or down to Q
6.0
— — 37 — 46
t _PHL
2.0
— — 275 — 345
4.5
— 21 55 — 69
6.0
— — 47 — 59
t _PLH
2.0
— — 230 — 290
4.5
— 17 46 — 58
Load to Q
6.0
— — 39 — 49
t _PHL
2.0
— — 290 — 365
4.5
— 23 58 — 73
6.0
— — 49 — 62
t _PHL
2.0
— — 265 — 335
4.5
— 24 53 — 66
Clear to Q
6.0
— — 45 — 56
Pulse width
t_w
2.0
80 — — 100 — ns
4.5
16 8 — 20 —
6.0
14 – — 17 —
8