UPD75518 NEC, UPD75518 Datasheet - Page 4

• Manufacturer Part Number: UPD75518
• Description: 4 BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC

SO0/SB0/P02
SI0/SB1/P03
PTO0/P20
SCK0/P01
SCK1/P81
AN4/P150
- AN7/P153
INT0/P10
INT1/P11
INT2/P12
INT4/P00
PPO/P80
AN0 - AN3
BUZ/P23
SO1/P82
KR0/P60
- KR7/P73
SI1/P83
TI0/P13
AV
AV
REF
SS
INTW
Watch timer
Timer/event
counter #0
Timer/pulse
generator
Serial
interface 1
Serial
interface 0
Bit se-
quential
buffer (16)
A/D
converter
Interrupt
control
Basic
interval
timer
INTBT
INTT0
INTTPG
INTCSI
Clock output
control
ROM program memory
Program counter (15)
PCL/P22
32640
Note Port 4, Port 5, Port 12, Port 13, and Port 14 are N-ch open-drain
8 bits
Clock divider
I/O ports with a medium withstand voltage of 10 V.
f
X
/2
N
XT1 XT2 X1 X2
Clock generator
Sub
Decode and
control
Main
ALU
Stand by
control
RAM data memory
General register
CY
1024
4 bits
CPU clock
Bank
SBS(2)
SP(8)
RESET
V
DD
Port 10
Port 11
Port 12
Port 13
Port 14
Port 15
Port 0
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6
Port 7
Port 8
Port 9
V
SS
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
P00 - P03
P10 - P13
P20 - P23
P30 - P33
P40 - P43
P50 - P53
P60 - P63
P70 - P73
P80 - P83
P90 - P93
P100 - P103
P110 - P113
P120 - P123
P130 - P133
P140 - P143
P150 - P153
Note
Note
Note
Note
Note