HCF40103BEY STMicroelectronics, HCF40103BEY Datasheet - Page 2

• Manufacturer Part Number: HCF40103BEY
• Description: IC DOWN COUNTER 8BIT BIN 16-DIP
• Manufacturer: STMicroelectronics
• Series: 4000Br

Specifications of HCF40103BEY

• Logic Type: Binary Counter
• Direction: Down
• Number Of Elements: 1
• Number Of Bits Per Element: 8
• Reset: Asynchronous
• Timing: Asynchronous/Synchronous
• Count Rate: 4.8MHz
• Trigger Type: Positive Edge
• Voltage - Supply: 3 V ~ 20 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Counter Type: Binary
• Counting Sequence: Down
• Number Of Circuits: 1
• Logic Family: 4010
• Propagation Delay Time: 600 ns, 260 ns, 190 ns
• Supply Voltage (max): 20 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Function: 8 Bit Binary Down Counter
• Mounting Style: Through Hole
• Operating Supply Voltage: 3.3 V, 5 V, 9 V, 12 V, 15 V, 18 V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-1341-5

HCF40103B
inputs are high at the time of zero count, the
counters will jump to the maximum count, giving a
counting sequence of 256 clock pulses long.
IINPUT EQUIVALENT CIRCUIT
FUNCTIONAL DIAGRAM
TRUTH TABLES
X : Don’t Care
Clock connected to Clock input
Synchronous Operation : changes occur on negative to positive clock transitions.
2/14
CLR
H
H
H
H
L
CONTROL INPUTS
APE
H
H
H
X
L
SPE
H
H
X
X
L
CI/CE
H
X
X
X
L
PRESET MODE
Asynchronous
Synchronous
HCF40103B may be cascaded using the CI/CE
input and the CO/ZD output, in either a
synchronous or ripple mode.
PIN DESCRIPTION
4, 5, 6, 7, 10,
11, 12, 13
PIN No
14
15
16
1
2
3
9
8
Inhibit Counter
Count Down
Preset on Next Positive Clock Transition
Preset Asynchronously
Clear to Maximum Count
SYMBOL
CLOCK
J0 to J7
CLEAR
CO/ZD
CI/CE
APE
SPE
V
V
SS
DD
Clock Input (LOW to
HIGH edge triggered)
Asynchronous Master
Reset Input (Active Low)
Terminal Enable Input
Jam Inputs
Asynchronous Preset
Enable Inputs(Active Low)
Terminal Count Output
(Active Low)
Synchronous Preset
Enable Input (Active Low)
Negative Supply Voltage
Positive Supply Voltage
NAME AND FUNCTION
ACTION