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HCF40102B Datasheet

8-STAGE PRESETTABLE SYNCHRONOUS DOWN COUNTERS

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HCC/HCF40102B
HCC/HCF40103B
8-STAGE PRESETTABLE SYNCHRONOUS DOWN COUNTERS
40102B 2-DECADE BCD TYPE
40103B 8-BIT BINARY TYPE
. SYNCHRONOUS OR ASYNCHRONOUS
PRESET
. MEDIUM-SPEED OPERATION : fCL = 3.6MHz
(TYP.) @ VDD = 10V
. CASCADABLE
. QUIESCENT CURRENT SPECIFIED TO 20V
FOR HCC DEVICE
. 5V, 10V AND 15V PARAMETRIC RATINGS
. INPUT CURRENT OF 100 nA AT 18V AND 25°C
FOR HCC DEVICE
. 100% TESTED FOR QUIESCENT CURRENT
. MEETS ALL REQUIREMENTS OF JEDECTEN-
TATIVE STANDARD No. 13 A, ”STANDARD
SPECIFICATIONS FOR DESCRIPTION OF ”B”
SERIES CMOS DEVICES”
DESCRIPTION
The HCC40102B, HCC40103B, (extended tempera-
ture range) and the HCF40102B, HCF40103B (inter-
mediate temperature range) are monolithic integrated
circuits, available in 16-lead dual in-line plastic or ce-
ramic package. The HCC/HCF40102B, and
HCC/HCF40103B consist of an 8-stage synchronous
down counter with a single output which is active when
the internal count is zero. The HCC/HCF40102B is
configured as two cascaded 4-bit BCD counters, and
the HCC/HCF40103B contains a single 8-bit binary
counter. Each type has control inputs for enabling or
disabling the clock, for clearing the counter to its
maximum count, and for presetting the counter
either synchronously or asynchronously. All control
inputs and the CARRY-OUT/ZERO-DETECT out-
put are active-low logic. In normal operation, the
counter is decremented by one count on each posi-
tive transition of the CLOCK. Counting is inhibited
when the CARRY-IN/COUNTER ENABLE (CI/CE)
input is high. The CARRY-OUT/ZERO-DETEC
(CO/ZD) output goes low when the count reaches
zero if the CI/CE input is low, and remains low for
one full clock period. When the SYNCHRONOUS
PRESET-ENABLE (SPE) input is low, data at the
JAM input is clocked into the counter on the next
positive clock transition regardless of the state of the
CI/CE input. When the ASYNCHRONOUS
PRESET-ENABLE (APE) input is low, data at the
June 1989
EY
(Plastic Package)
F
(Ceramic Package)
C1
(Chip Carrier)
ORDER CODES :
HCC401XXBF HCF401XXBEY
HCF401XXBC1
PIN CONNECTIONS
1/13


STMicroelectronics Electronic Components Datasheet

HCF40102B Datasheet

8-STAGE PRESETTABLE SYNCHRONOUS DOWN COUNTERS

No Preview Available !

HCC/HCF40102B/40103B
JAM inputs is asynchronously forced into the
counter regardless of the state of the SPE, CI/CE,
or CLOCK inputs. JAM inputs JO-J7 represent two
4-bit BCD words for the HCC/HCF40102B and a
single 8-bit binary word for the HCC/HCF40103B.
When the CLEAR (CLR) input is low, the counter
is asynchronously cleared to its maximum count
(9910 for the HCC/HCF40102B and 25510 for
FUNCTIONAL DIAGRAM
theHCC/HCF40103B) regardless of the state of
any other input. The precedence relationship be-
tween control input is indicated in the truth table. If
all control inputs are high at the tieme of zero count,
the counters will jump to the maximum count, giving
a counting sequence of 100 or 256 clock pulses
long. The HCC/HCF40102B and HCC/HCF40103B
may be cascaded using the CI/CE input and the
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VDD* Supply Voltage : HC C Types
H C F Types
– 0.5 to + 20
– 0.5 to + 18
V
V
V i Input Voltage
II DC Input Current (any one input)
Pto t Total Power Dissipation (per package)
Dissipation per Output Transistor
for To p = Full Package-temperature Range
T o p Operating Temperature : HCC Types
H CF Types
– 0.5 to VDD + 0.5
± 10
200
100
– 55 to + 125
– 40 to + 85
V
mA
mW
mW
°C
°C
T s tg Storage Temperature
– 65 to + 150
°C
Stresses above those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only
and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification
is not implied. Exposure to absolute maximum rating conditions for external periods may affect device reliability.
* All voltages are with respect to VSS (GND).
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
VDD Supply Voltage : H CC Types
H C F Types
VI Input Voltage
T o p Operating Temperature : HCC Types
H CF Types
Value
3 to 18
3 to 15
0 to VDD
– 55 to + 125
– 40 to + 85
Unit
V
V
V
°C
°C
2/13


Part Number HCF40102B
Description 8-STAGE PRESETTABLE SYNCHRONOUS DOWN COUNTERS
Maker STMicroelectronics
Total Page 13 Pages
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