HD151012 Datasheet, PDF (6/16 Pages) Hitachi Semiconductor – 8-bit Binary Programmable Counter with Synchronous Preset Enable

HD151012
Switching Characteristics (C_L = 50 pF, t_r = t_f = 6 ns)
Sym-
Ta = 25°C
Ta =
–40 to 85°C
Item
Maximum clock
frequency
bol V_CC Min Typ Max Min Max Unit Test Conditions
f_max 2.0 —
—
4
—3
MHz
4.5 — 36 20 — 16
6.0 — — 24 — 19
Output rise/fall time t_TLH 2.0 — 30 75 — 95 ns
t_THL 4.5 —
8
15 — 19
6.0 — 7 13 — 16
Propagation delay
time
t_PLH 2.0 — — 300 — 380
t_PHL 4.5 — 35 60 — 75
6.0 — — 53 — 65
CLK or CLK to Q
t_PLH 2.0 — — 150 — 185
t_PHL 4.5 — 18 30 — 38
6.0 — — 25 — 32
PR or CLR to Q
Pulse width
tw 2.0 80 — — 100 — ns
(CLK, CLK, PR, CLR)
4.5 16 — — 20 —
6.0 14 — — 17 —
Setup time
ts 2.0 100 — — 125 — ns
(Jn - CLK, CLK)
4.5 20 — — 25 —
(SPE, CLK, CLK)
6.0 17 — — 21 —
Hold time
th 2.0 15 — — 15 — ns
(Jn - CLK, CLK)
4.5 10 — — 10 —
(SPE, CLK, CLK)
6.0 5 — — 5 —
Input capacitance
Power dissipation
capacitance*¹
C_IN
—
—
5
10 — 10 pF
C_PD — — 48 — — — pF
Note:
1. CPD is equivalent capacitance inside of the IC calculated from the operating current without load
(see test circuit). The average operating current without load is calculated according to the
expression below.
I_CC (opr) = C_PD • V_CC • f_IN + I_CC
6