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UPD78C17 Datasheet(PDF) 4 Page - NEC

Part No. UPD78C17
Description  8-BIT SINGLE-CHIP MICROCONTROLLER WITH A/D CONVERTER
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Maker  NEC [NEC]
Homepage  http://www.nec.com/
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 4 page
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SERIAL I/O
X1
ALU
(8/16)
PC0/TXD
X2
PC1/RXD
PC2/SCK
OSC
INT.
CONTROL
NMI
INT1
8
8
4
8
TIMER
TIMER/EVENT
COUNTER
8
8
8
PC3/INT2/TI
PC4/TO
PC5/CI
PC6/CO0
PC7/CO1
A/D
CONVERTER
VAREF
AVDD
AVSS
8
LATCH
INC/DEC
PC
SP
EA
EA'
VA
BC
DE
HL
V'
A'
B'
C'
D'
E'
H'
L'
BUFFER
10
16
15
PROGRAMNote 1
MEMORY
(32-KBYTE)
DATANote 4
MEMORY
(1-KBYTE)
8/16
INST.REG
LATCH
LATCH
16
16
INTERNAL DATA BUS
16
16
16
6
INST.
DECODER
8
8
STAND BY
CONTROL
SYSTEM
CONTROL
READ/WRITE
CONTROL
RESET
VSS
VDD
STOP
MODE0
MODE1
ALE
WR
RD
8
8
8
8
8
8
8
PC7-0Note 3
8
8
PB7-0Note 3
8
8
PA7-0Note 3
8
16
AN7-0
PSW
PD7-0/
AD7-0Note 2
PF7-0/
AB15-8Note 2
MAIN
G.R
ALT
G.R
Notes 1.
Program memory is not incorporated in the
µPD78C17.
2.
PF3 to PF0 and PD7 to PD0 are operated only as AB11
to AB8 and AD7 to AD0 in the
µPD78C17.
3.
Pull-up resistor can be incorporated by the mask
option in the
µPD78C18.
4.
Can be used only when RAE bit of MM register is 1.
When it is 0, an external memory is necessary.




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