MC14536 ONSEMI [ON Semiconductor], MC14536 Datasheet - Page 9

• Manufacturer Part Number: MC14536
• Description: Programmable Timer
• Manufacturer: ONSEMI [ON Semiconductor]

reduction of test time required to exercise all 24 counter
stages. This test function divides the counter into three
8–stage sections and 255 counts are loaded in each of the
8–stage sections in parallel. All flip–flops are now at a “1”.
The counter is now returned to the normal 24–stages in
series configuration. One more pulse is entered into In
which will cause the counter to ripple from an all “1” state
to an all “0” state.
GENERATOR
Test function (Figure 8) has been included for the
PULSE
Figure 6. Power Dissipation Test
20 ns
FUNCTIONAL TEST SEQUENCE
Circuit and Waveform
500 F
10%
DUTY CYCLE
90%
SET
RESET
8–BYPASS
IN
C INH
MONO IN
OSC INH
A
B
C
D
50%
1
50%
DECODE
I
D
OUT 1
V
OUT
OUT
V
DD
SS
2
0.01 F
CERAMIC
20 ns
C
C
C
L
L
L
GENERATOR
PULSE
http://onsemi.com
MC14536B
1
9
Figure 7. Switching Time Test Circuit and Waveforms
SET
RESET
8–BYPASS
IN
C INH
MONO IN
OSC INH
A
B
C
D
1
DECODE
Figure 8. Functional Test Circuit
OUT 1
GENERATOR
V
V
OUT
OUT
DD
SS
PULSE
2
20 ns
OUT
IN
t
1
PLH
C
L
t
WL
SET
RESET
8–BYPASS
IN
C INH
MONO IN
OSC INH
A
B
C
D
10%
90%
1
t
TLH
DECODE
OUT 1
V
V
OUT
OUT
DD
SS
2
20 ns
50%
t
THL
t
WH
50%
t
PHL