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UPD17145 Datasheet(PDF) 5 Page - NEC

Part No. UPD17145
Description  SMALL, GENERAL-PURPOSE 4-BIT SINGLE-CHIP MICROCONTROLLERS
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Maker  NEC [NEC]
Homepage  http://www.nec.com/
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UPD17145 Datasheet(HTML) 5 Page - NEC

 
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5
µPD17145(A1), 17147(A1), 17149(A1)
BLOCK DIAGRAM
Notes 1.
The ROM capacity of each product is as follows:
1024
× 16 bits:
µPD17145(A1)
2048
× 16 bits:
µPD17147(A1)
4096
× 16 bits:
µPD17149(A1)
2.
The stack capacity of each product is as follows:
5
× 10 bits:
µPD17145(A1)
5
× 11 bits:
µPD17147(A1)
5
× 12 bits:
µPD17149(A1)
Remark
CMOS or N-ch in ( ) indicate the output format of the port.
CMOS : CMOS push-pull output
N-ch
: N-ch open-drain output
VDD
P0A3
P0A2
P0A1
P0A0
P0B3
P0B2
P0B1
P0B0
P0C3/ADC3
P0C2/ADC2
P0C1/ADC1
P0C0/ADC0
P0F1/VREF
P0F0/RLS
P0D3/TM1OUT
P0D2/SI
P0D1/SO
P0D0/SCK
TM1
Serial
Interface
P0D
(N-ch)
P0F
A/D
Converter
P0C
(CMOS)
P0B
(CMOS)
P0A
(CMOS)
RF
RAM
110
× 4 bits
SYSTEM REG.
ALU
ROM
Note 1
Program Counter
Stack
Note 2
IRQSIO
Instruction
Decoder
P0E
(N-ch)
Timer 0
Timer 1
Basic Interval Timer
Interrupt
Controller
Clock
Divider
System Clock
Generator
fx/2N
CPU CLOCK CLK STOP
XIN
XOUT
INT
IRQTM0
IRQTM1
IRQBTM
IRQSIO
IRQBTM
fx/2N
fx/2N
fx/2N
IRQTM1
IRQTM0
P0E3
P0E2
P0E1
P0E0
RESET
GND


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