74HCT4060N NXP Semiconductors, 74HCT4060N Datasheet - Page 11

• Manufacturer Part Number: 74HCT4060N
• Description: 74HCT CMOS, 74HCT4060, DIP16, 5V
• Manufacturer: NXP Semiconductors

Specifications of 74HCT4060N

• Counter Type: Binary
• Clock Frequency: 88MHz
• Count Maximum: 14
• Supply Voltage Range: 4.5V To 5.5V
• Logic Case Style: DIP
• No. Of Pins: 16
• Operating Temperature Range: -40°C To +125°C
• Svhc: No SVHC
• Base Number: 74
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Philips Semiconductors
TIMING COMPONENT LIMITATIONS
The oscillator frequency is mainly determined by R
minimize the influence of the forward voltage across the input protection diodes on the frequency. The stray capacitance
C2 should be kept as small as possible. In consideration of accuracy, C
capacitance. R
V
The recommended values for these components to maintain agreement with the typical oscillation formula are:
C
10 k
In order to avoid start-up problems, R
December 1990
CC
t
14-stage binary ripple counter with oscillator
Fig.7
Fig.9
= 4.5 V and 100
50 pF, up to any practical value,
R
t
Test set-up for measuring forward
transconductance g
constant (see also graph Fig.8);
MR = LOW.
RC oscillator frequency as a function of
R
C
R
t
t
t
1 M .
and C
curve at R
curve at C
t
must be larger than the “ON” resistance in series with it, which typically is 280
t
at V
at V
t
t
CC
= 100 k ; R2 = 200 k .
= 1 nF; R2 = 2
CC
= 2.0 to 6.0 V; T
fs
= 6.0 V.
= di
o
t
/ dv
1 k
i
R
at v
amb
t
.
o
is
= 25 C.
t
C
t
, provided R2
11
handbook, halfpage
RC OSCILLATOR
Fig.8
Typical formula for oscillator frequency:
f
osc
(mA/V)
g
=
fs
2R
------------------------------- -
2.5 R
t
Typical forward transconductance g
function of the supply voltage V
T
t
14
12
10
Fig.10 Example of a RC oscillator.
must be larger than the inherent stray
and R2C2 << R
8
6
4
2
amb
1
0
t
= 25 C.
C
t
1
2
t
C
t
. The function of R2 is to
3
74HC/HCT4060
at V
4
Product specification
CC
max.
V
= 2.0 V, 130
CC
5
CC
MBA333
(V)
min.
typ.
at
fs
6
as a
at