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UPD17015GS Datasheet(PDF) 102 Page - NEC

Part # UPD17015GS
Description  4-BIT SINGLE-CHIP MICROCONTROLLER FOR PORTABLE RADIOS
PDF  120 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD17015GS Datasheet(HTML) 102 Page - NEC

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102
µPD17015
Fig. 15-8 BTM0CY Flag State Transition
VDD = L
→1.8 V
CE = L
CE = H
CE = H
→L
STOP 0
BTM0CY = 0
CE = L
→H
CE = L
→H
CE = H
→L
CE = L
→H
CE = L
→H
STOP 0
BTM0CY = 1
CE = low
CE = optional
CE = high
VDD = low
Operation stopped
Crystal oscillation start
Forced halt (approx. 125 ms)
Power-on reset
Normal
operation
CE reset
Rising edge of
BTM0CY flag
set pulse
Clock-stop
BTM0CY flag setting
disabled state
Normal
operation
Normal operation
CE reset wait
Crystal oscillation start
Forced halt (125 ms)
SKT1 BTM0CY or
SKF1 BTM0CY
SKT1 BTM0CY or SKF1 BTM0CY
Normal
operation
CE reset
Rising edge of
BTM0CY flag
set pulse
Clock-stop
Normal
operation
Normal operation
CE reset wait
Crystal oscillation start
Forced halt (125 ms)
BTM0CY
flag setting
enable state
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