100336 Low Power 4-Stage Counter/Shift Register
August 1989
Revised August 2000
100336
Low Power 4-Stage Counter/Shift Register
General Description
The 100336 operates as either a modulo-16 up/down
counter or as a 4-bit bidirectional shift register. Three
Select (S
n
) inputs determine the mode of operation, as
shown in the Function Select table. Two Count Enable
(CEP, CET) inputs are provided for ease of cascading in
multistage counters. One Count Enable (CET) input also
doubles as a Serial Data (D
0
) input for shift-up operation.
For shift-down operation, D
3
is the Serial Data input. In
counting operations the Terminal Count (TC) output goes
LOW when the counter reaches 15 in the count/up mode or
0 (zero) in the count/down mode. In the shift modes, the TC
output repeats the Q
3
output. The dual nature of this TC/Q
3
output and the D
0
/CET input means that one interconnec-
tion from one stage to the next higher stage serves as the
link for multistage counting or shift-up operation. The indi-
vidual Preset (P
n
) inputs are used to enter data in parallel
or to preset the counter in programmable counter applica-
tions. A HIGH signal on the Master Reset (MR) input over-
rides all other inputs and asynchronously clears the flip-
flops. In addition, a synchronous clear is provided, as well
as a complement function which synchronously inverts the
contents of the flip-flops. All inputs have 50 k
Ω
pull-down
resistors.
Features
s
40% power reduction of the 100136
s
2000V ESD protection
s
Pin/function compatible with 100136
s
Voltage compensated operating range
= −
4.2V to
−
5.7V
s
Available to industrial grade temperature range
Ordering Code:
Order Number
100336SC
100336PC
100336QC
100336QI
Package Number
M24B
N24E
V28A
V28A
Package Description
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-010, 0.400 Wide
28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square
28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square
Industrial Temperature Range (
−
40
°
C to
+
85
°
C)
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagrams
24-Pin DIP/SOIC
28-Pin PLCC
Logic Symbol
© 2000 Fairchild Semiconductor Corporation
DS010584
www.fairchildsemi.com
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