HD151011 Datasheet, PDF (7/16 Pages) Hitachi Semiconductor – Dual BCD Programmable Counter with Synchronous Preset Enable

HD151011
Switching Characteristics (C_L = 50 pF, tr = tf = 6 ns)
Ta = 25°C
Ta = –40 to 85°C
Item
Maximum clock
frequency
Symbol V_CC
fmax 2.0
Min Typ Max Min
—— 4 —
Max Unit Test Conditions
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 t_PLH
time
2.0 — — 250 —
318 ns CLK or CLK to CO
t _PHL
4.5 — 30 50 —
63
6.0 — — 45 —
53
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
C_IN
—
—5
10 —
10
pF
Power dissipation
C_PD
— — 48 — —
—
pF
capacitance
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
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