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UPD17246 Datasheet(PDF) 6 Page - NEC

Part # UPD17246
Description  4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD17246 Datasheet(HTML) 6 Page - NEC

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Data Sheet U15002EJ1V0DS
µPD17240, 17241, 17242, 17243, 17244, 17245, 17246
BLOCK DIAGRAM
P0A0
P0A1
P0A2
P0A3
P0A
P0B0
P0B1
P0B2
P0B3
P0B
P0C0
P0C1
P0C2
P0C3
P0C
P0D0
P0D1
P0D2
P0D3
P0D
P0E0
P0E1
P0E2
P0E3
P0E
P1A0
P1A1
P1A2
P1B0
P1A
P1B
RF
System registers
ALU
OSC
CPU clock
REM
INT/P1B0
VDD
GND
XIN
XOUT
Instruction
decoder
Power
supply
circuit
Remote
control
divider
8-bit
timer
Interrupt
controller
RESET
Reset
controller
Program counter
Stack (5 levels)
RAM
447
× 4 bits
ROM
PD17240: 2,048
× 16 bits
PD17241: 4,096
× 16 bits
PD17242: 6,144
× 16 bits
PD17243: 8,192
× 16 bits
PD17244: 10,240
× 16 bits
PD17245: 12,288
× 16 bits
PD17246: 16,384
× 16 bits
Basic interval/
watchdog timer
µ
µ
µ
µ
µ
µ
µ


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