HCF40193 Datasheet, PDF (2/12 Pages) STMicroelectronics – PRESETTABLE UP/DOWN COUNTERS (DUAL CLOCK WITH RESET) BINARY TYPE

HCF40193B
one-half clock cycle after the counter reaches its
minimum count in the count-down mode. The
cascading of multiple packages is easily
accomplished without the need for additional
external circuitry by tying the BORROW and
CARRY outputs to the CLOCK DOWN and
CLOCK UP inputs, respectively, of the following
package.
IINPUT EQUIVALENT CIRCUIT
FUNCTIONAL DIAGRAM
PIN DESCRIPTION
PIN No
3, 2, 6, 7
4
5
11
12
13
14
15, 1, 10, 9
8
16
SYMBOL NAME AND FUNCTION
Q1 to Q4
CLOCK
DOWN
CLOCK UP
PRESET
ENABLE
CARRY
BORROW
RESET
J1 to J4
V_SS
V_DD
Flip-Flop Outputs
Clock Down Input
Clock Up Input
Preset Enable Input
Count Up (Carry)
Count Down (Borrow)
Reset Input
Data Input
Negative Supply Voltage
Positive Supply Voltage
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