HCF40110B
to 9 or the CARRY output when the count changes
from 9 to 0. At other times the BORROW and
BORROW outputs can be tied directly to the
clock-up and clock-down lines, respectively, of
another HCF40110B for easy cascading of
several counters.
INPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
SYMBOL NAME AND FUNCTION
1, 15, 14, 13,
12, 3, 2
a, b, c, d, e,
f, g
7 Segment Outputs
4
Toggle
Enable
Enable Johnson Counter
5
Reset Reset Input
6
Latch Enable Latch Enable
7
Clock Down Clock Down
9
Clock Up Clock Up
10
Carry Carry Output
11
Borrow Borrow Output
8
VSS
Negative Supply Voltage
16
VDD
Positive Supply Voltage
FUNCTIONAL DIAGRAM (One Half)
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