The Harris CD74HC4060 and CD74HCT4060 each consist
of an oscillator section and 14 ripple-carry binary counter
stages. The oscillator configuration allows design of either
RC or crystal oscillator circuits. A Master Reset input is
provided which resets the counter to the all-0’s state and
disables the oscillator. A high level on the MR line
accomplishes the reset function. All counter stages are
master-slave flip-flops. The state of the counter is advanced
one step in binary order on the negative transition of φI (and
φO). All inputs and outputs are buffered. Schmitt trigger
action on the input-pulse-line permits unlimited rise and fall
times.
In order to achieve a symmetrical waveform in the oscillator
section the HCT4060 input pulse switch points are the same
as in the HC4060; only the MR input in the HCT4060 has
Functional Diagram
12
MR
14-STAGE
COUNTER
11
φI
OSCILLATOR
TTL switching levels.
Ordering Information
PART NUMBER TEMP. RANGE (oC) PACKAGE
CD74HC4060E-55 to 12516 Ld PDIPE16.3
CD74HCT4060E-55 to 12516 Ld PDIPE16.3
CD74HC4060M-55 to 12516 Ld SOICM16.15
CD74HCT4060M-55 to 12516 Ld SOICM16.15
NOTES:
1. When ordering, use the entire partnumber. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Wafer and die for this part number is available which meets all
electrical specifications. Please contact your local sales office or
Harris customer service for ordering information.
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
3. θJA is measured with the component mounted on an evaluation PC board in free air.
9. At very high frequencies f = 1/2.2 RXCXno longer gives an
yaccurate approximation.
2
10
10
1
-1
10
(µF)
X
-2
C
10
-3
10
-4
10
-5
10
-1
0
10
10
10
OSCILLATOR FREQUENCY (Hz)
10
NOTE: OSC Frequency≈ 1/2.2 RXC
3
2
10
X
10
TA = 25oC
RX = 1KΩ
10KΩ
100KΩ
1MΩ
10MΩ
4
10510
For 1MΩ > RX > 1KΩ, CX > 10pF, f < 1MHz
FIGURE 2. FREQUENCY OF ON-BOARD OSCILLATOR AS A
FUNCTION OF CX AND R
X
6
8
Typical Performance Curves
trC
L
CLOCK
10%
90%
50%
10%
tfC
t
WL
L
tWL+ tWH=
50%
t
WH
fC
50%
I
L
V
CC
GND
NOTE: Outputs should be switching from 10% VCC to 90% VCC in
accordance with device truth table. For f
, input duty cycle = 50%.
MAX
FIGURE 3. HC CLOCK PULSE RISE AND FALLTIMES AND
PULSE WIDTH
tr = 6nstf = 6ns
V
t
CC
GND
TLH
INPUT
t
INVERTING
OUTPUT
THL
t
PHL
90%
50%
10%
t
90%
50%
10%
PLH
1.3V
I
fC
L
3V
GND
t
rCL
CLOCK
= 6ns
0.3V
2.7V
1.3V
0.3V
t
fCL
t
WL
= 6ns
1.3V
t
WH
t
WL
+ tWH=
NOTE: Outputs should be switching from 10% VCC to 90% VCC in
accordance with device truth table. For f
, input duty cycle = 50%.
MAX
FIGURE 4. HCT CLOCK PULSE RISE AND FALLTIMES AND
PULSE WIDTH
= 6ns
t
PLH
t
f
10%
90%
1.3V
t
3V
GND
TLH
tr = 6ns
INPUT
t
INVERTING
OUTPUT
THL
t
2.7V
1.3V
0.3V
PHL
FIGURE 5. HC AND HCT TRANSITION TIMES AND PROPAGA-
TION DELAY TIMES, COMBINATION LOGIC
FIGURE 6. HCT TRANSITION TIMES AND PROPAGATION
DELAY TIMES, COMBINATION LOGIC
9
IMPORTANT NOTICE
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any product or service without notice, and advise customers to obtain the latest version of relevant information
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pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty . Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
CERT AIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICA TIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERST OOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 1999, Texas Instruments Incorporated
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