Datasheet

January 1995 5
Philips Semiconductors Product specification
14-stage ripple-carry binary counter/divider
and oscillator
HEF4060B
MSI
AC CHARACTERISTICS
V
SS
= 0 V; T
amb
=25°C; input transition times ≤ 20 ns
Notes
1. where:
f
i
= input frequency (MHz)
f
o
= output frequency (MHz)
C
L
= load capacitance (pF)
V
DD
= supply voltage (V)
C
t
= timing capacitance (pF)
f
osc
= oscillator frequency (MHz)
RC oscillator
V
DD
V
TYPICAL FORMULA FOR P (µW)
(1)
Dynamic power dissipation 5 700 f
i
+ f
o
C
L
V
DD
2
per package 10 3 300 f
i
+ f
o
C
L
V
DD
2
(P) 15 8 900 f
i
+ f
o
C
L
V
DD
2
Total power dissipation 5 700 f
osc
+ f
o
C
L
V
DD
2
+ 2C
t
V
DD
2
f
osc
+ 690 V
DD
when using the 10 3 300 f
osc
+ f
o
C
L
V
DD
2
+ 2C
t
V
DD
2
f
osc
+ 6 900 V
DD
on-chip oscillator (P) 15 8 900 f
osc
+ f
o
C
L
V
DD
2
+ 2C
t
V
DD
2
f
osc
+ 22 000 V
DD
Fig.4 External component connection for RC oscillator.
Typical formula for oscillator frequency:
f
osc
1
2,3 R
t
C
t
××
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