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UPD17232 Datasheet(PDF) 5 Page - NEC

Part # UPD17232
Description  4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
PDF  92 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD17232 Datasheet(HTML) 5 Page - NEC

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Data Sheet U14360EJ1V0DS00
µPD17230, 17231, 17232, 17233, 17234, 17235, 17236
5
BLOCK DIAGRAM
Note
Input or output selectable by mask option.
P0A0
P0A1
P0A2
P0A3
P0B0
P0C0
P0D0
P0E0
P0B1
P0C1
P0D1
P0E1
P0B2
P0C2
P0D2
P0E2
P0B3
P0C3
P0D3
P0E3
P0A
P0B
P0C
P0D
P0E
RF
SYSTEM REG.
ALU
Remote
Control
Divider
REM
INT
8-bit Timer
Interrupt
Controller
VDD
GND
XIN
XOUT
Instruction
Decoder
Program Counter
Stack (5 levels)
Basic Interval/
Watchdog Timer
Power
Supply
Circuit
CPU Clock
OSC
223
× 4 bits
RAM
PD17230 : 2048
× 16 bits
PD17231 : 4096
× 16 bits
PD17232 : 6144
× 16 bits
PD17233 : 8192
× 16 bits
PD17234 : 10240
× 16 bits
PD17235 : 12288
× 16 bits
PD17236 : 16384
× 16 bits
ROM
µ
µ
µ
µ
RESET
Reset
Controller
µ
µ
µ
P1A0
Note
P1A



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