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UPD750104 Datasheet(PDF) 16 Page - NEC

Part # UPD750104
Description  4 BIT SINGLE-CHIP MICROCONTROLLER
PDF  80 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD750104 Datasheet(HTML) 16 Page - NEC

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µPD750104, 750106, 750108, 750104(A), 750106(A), 750108(A)
16
5. MEMORY CONFIGURATION
• Program memory (ROM) : 4,096
× 8 bits (0000H-0FFFH):
µPD750104
6,144
× 8 bits (0000H-17FFH):
µPD750106
8,192
× 8 bits (0000H-1FFFH):
µPD750108
•
0000H to 0001H
Vector address table for holding the RBE and MBE values and program start address when a RESET signal is
issued (allowing a reset start at an arbitrary address)
•
0002H to 000DH
Vector address table for holding the RBE and MBE values and program start address for each vectored interrupt
(allowing interrupt processing to be started at an arbitrary address)
•
0020H to 007FH
Table area referenced by the GETI instructionNote
Note
The GETI instruction requires only one byte to represent an arbitrary two-byte or three-byte instruction or
two one-byte instructions, reducing the number of program bytes.
• Data memory (RAM)
•
Data area
: 512
× 4 bits (000H to 1FFH)
•
Peripheral hardware area: 128
× 4 bits (F80H to FFFH)



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