PD17225_15 Datasheet, PDF (7/86 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER

BLOCK DIAGRAM
P0A0
P0A1
P0A2
P0A3
P0B0
P0B1
P0B2
P0B3
P0C0
P0C1
P0C2
P0C3
P0D0
P0D1
P0D2
P0D3
P0E0
P0E1
P0E2
P0E3
P0A
P0B
P0C
P0D
P0E
µPD17225, 17226, 17227, 17228
RF
RAM
µ PD17225, 17226 : 111 × 4 bits
µ PD17227, 17228 : 223 × 4 bits
SYSTEM REG.
ALU
ROM
µ PD17225 : 2048 × 16 bits
µ PD17226 : 4096 × 16 bits
µ PD17227 : 6144 × 16 bits
µ PD17228 : 8192 × 16 bits
Instruction
Decoder
Program Counter
Stack (5 levels)
Basic Interval/
Watchdog Timer
Remote
Control
Divider
REM
8-bit Timer
Interrupt
Controller
INT
Power
Supply
Circuit
CPU Clock
OSC
RESET
WDOUT
VDD
GND
XIN
XOUT
Data Sheet U12643EJ2V0DS00
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