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UPD70325L-10



NEC 로고
NEC
D70325L-10 데이터시트, 핀배열, 회로
www.DataSheet4U.com
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD70325
V25+TM
16/8-BIT SINGLE-CHIP MICROCONTROLLER
The µPD70325 (V25+) is a single-chip microcontroller on which 16-bit CPU, RAM, serial interface, timer, DMA
controller, interrupt controller, etc. are all integrated. The µPD70325 is software compatible with the 16/8-bit single-
chip microcontroller µPD70320 (V25TM). The V25+ greatly improves the DMA responsivity and transfer rate compared
to the V25.
FEATURES
Software compatible with V25
Software compatible with µPD70108/70116 (in native mode) (some instructions added)
Internal 16-bit architecture and external 8-bit data bus
3-stage pipeline method
Minimum instruction cycle : 250 ns/8 MHz (external 16 MHz)
: 200 ns/10 MHz (external 20 MHz)
Memory space 1 Mbyte
On-chip RAM : 256 words × 8 bits
Register bank (memory mapped method) : 8 banks
Input port (port T) with comparator : 8 bits
I/O lines (input port : 4 bits, input/output ports : 20 bits)
Serial interface : 2 channels
• Internal dedicated baud rate generator
• Asynchronous mode and I/O interface mode
Interrupt controller
• Programmable priority (8 levels)
• 3 types of interrupt response method
Vectored interrupt function, register bank switching function, macro service function
DRAM and pseudo SRAM refreshing function
DMA controller : 2 channels
• 4 types of DMA transfer mode
• Transfer rate Maximum 4 Mbytes/second (when stop control is not executed by DMARQ pin in demand release
mode)
Maximum 2 Mbytes/second (when stop control is executed by DMARQ pin in demand release
mode, or burst mode)
• Address pointer (linear) : 20 bits
• Terminal counter : 16 bits
16-bit timer : 2 channels
Time base counter (20 bits) : 1 channel
On-chip clock generator
Programmable wait function
Standby function (STOP, HALT)
The information in this document is subject to change without notice.
Document No. U12850EJ7V0DS00 (7th edition)
Date Published November 1997 N
Printed in Japan
The mark shows major revised points.
© 11999965


D70325L-10 데이터시트, 핀배열, 회로
OwRwDw.EDRatIaNSGheetI4NUF.cOomRMATION
Part Number
µPD70325GJ-8-5BG
µPD70325GJ-10-5BG
µPD70325L-8
µPD70325L-10
Package
94-pin plastic QFP (20 × 20 mm)
94-pin plastic QFP (20 × 20 mm)
84-pin plastic QFJ (1150 × 1150 mil)
84-pin plastic QFJ (1150 × 1150 mil)
µPD70325
External Clock (MHz)
16
20
16
20
2




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