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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Programmable Timer
The MC14536B programmable timer is a 24–stage binary ripple counter
with 16 stages selectable by a binary code. Provisions for an on–chip RC
oscillator or an external clock are provided. An on–chip monostable circuit
incorporating a pulse–type output has been included. By selecting the
appropriate counter stage in conjunction with the appropriate input clock
frequency, a variety of timing can be achieved.
24 Flip–Flop Stages — Will Count From 2 0 to 2 24
Last 16 Stages Selectable By Four–Bit Select Code
8–Bypass Input Allows Bypassing of First Eight Stages
Set and Reset Inputs
Clock Inhibit and Oscillator Inhibit Inputs
On–Chip RC Oscillator Provisions
On–Chip Monostable Output Provisions
Clock Conditioning Circuit Permits Operation With Very Long Rise and
Fall Times
Test Mode Allows Fast Test Sequence
Supply Voltage Range = 3.0 Vdc to 18 Vdc
Capable of Driving Two Low–power TTL Loads or One Low–power
Schottky TTL Load Over the Rated Temperature Range
Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î
MAXIMUM RATINGS*
(Voltages Referenced to V SS )
Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î
Symbol
Parameter
V DD
DC Supply Voltage
V in , V out
Input or Output Voltage (DC or Transient)
I in , I out
Input or Output Current (DC or Transient),
per Pin
P D
Power Dissipation, per Package†
T stg
Storage Temperature
T L
Lead Temperature (8–Second Soldering)
* Maximum Ratings are those values beyond which damage to the device may occur.
†Temperature Derating:
Plastic "P and D/DW" Packages: – 7.0 mW/ _ C From 65 _ C To 125 _ C
Ceramic "L" Packages: – 12 mW/ _ C From 100 _ C To 125 _ C
OSC. INHIBIT 14
IN 1
3
4
OUT 1
MC14536B
6–354
Value
– 0.5 to + 18.0
– 0.5 to V DD + 0.5
10
500
– 65 to + 150
260
BLOCK DIAGRAM
CLOCK INH.
RESET
SET
7
2
1
6
STAGES
1 THRU 8
5
A
OUT 2
B 10
C 11
D 12
V DD = PIN 16
V SS = PIN 8
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBDW
T A = – 55 to 125 C for all packages.
Unit
V
V
mA
mW
_ C
_ C
8 BYPASS
STAGES 9 THRU 24
Q
Q
Q
Q
Q
Q
Q
9
10
11
12
13
14
15
9
DECODER
MONOSTABLE
MONO–IN 15
MULTIVIBRATOR
MOTOROLA CMOS LOGIC DATA
MC14536B
L SUFFIX
CERAMIC
CASE 620
P SUFFIX
PLASTIC
CASE 648
DW SUFFIX
SOIC
CASE 751G
Plastic
Ceramic
SOIC
Q
Q
Q
Q
Q
Q
Q
Q
16
17
18
19
20
21
22
23
DECODE
13
OUT
Q
24
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