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UPD784021 Datasheet(PDF) 10 Page - NEC

Part # UPD784021
Description  16/8-BIT SINGLE-CHIP MICROCOMPUTER
PDF  90 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD784021 Datasheet(HTML) 10 Page - NEC

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mPD784020, 784021
4. SYSTEM CONFIGURATION EXAMPLE (PPC)
Serial
communication
Sensing paper transport
Temperature of the
fusing heater
Brightness of the lamp
Lever for adjusting
the tone of the copy
Lever for compensating
the tone of the copy
Reset
circuit
RESET
ANI3
ANI2
ANI1
ANI0
INTP0
TxD
RD
OE
A17
CE
A8-A16
A8-A16
AD0-AD7
O0-O7
A0-A7
ASTB
RxD
P11
P15
P16
P17
SCK1
SI1
SO1
P04
P06
P07
P66
PWM0
P00-P03
P33
P34
P35
P36
P37
Driver
Sensing paper
Sensing paper feed
Sensing paper ejection
Sensing the position of the scanner station
Operator
panel
High-voltage
control circuit
Fusing heater
control circuit
Lamp regulator
Drum, toner, and charge for
transfer
Fusing roller
Lamp for lighting the original
Lamp for discharging
(DC stepping motor)
Main motor
M
Clutch for stopping
the scanner station
Clutch for forwarding
the scanner station
Clutch for the resist
shutter
Clutch for manual
feeding
Clutch for cassette
feeding
Solenoid
SL
SL
SL
SL
SL
PD784021
µ
PD74HC573
µ
PD27C1001A
µ



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