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UPD17015 Datasheet(PDF) 78 Page - NEC

Part # UPD17015
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

UPD17015 Datasheet(HTML) 78 Page - NEC

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78
µPD17015
Fig. 14-1 Standby Block
Halt block
BTM0CY
P0B0
P0B1
P0B2
CPU
Program counter
Instruction
decoder
ALU
System register
Peripheral
control register
Clock stop block
CE flag
CE
XOUT
XIN
Internal clock
Halt control circuit
(HALT h)
Clock-stop
control circuit
(STOP s)
Remark CE (bit 0 of CE pin level judge register: see Fig. 14-8).
Detects the status of the CE pin.



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