D70325GJ-10 Datasheet PDF - NEC

www.Datasheet-PDF.com

D70325GJ-10
NEC

Part Number D70325GJ-10
Description UPD70325GJ-10
Page 30 Pages


D70325GJ-10 datasheet pdf
Download PDF
D70325GJ-10 pdf
View PDF for Mobile


No Preview Available !

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
www.DataSheet.co.kr
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.
©
11999965Datasheet pdf - http://www.DataSheet4U.net/



No Preview Available !

ORDERING INFORMATION
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
www.DataSheet.co.kr
2
Datasheet pdf - http://www.DataSheet4U.net/



No Preview Available !

µPD70325
Comparison between V25 and V25+
V25
V35TM
V25+
V35+TM
µPD70320
µPD70330
µPD70325
µPD70335
Transfer processing method
Depends on microprogram
Depends on dedicated hardware
Maximum transfer rate (8-MHz
operation)
0.6 Mbytes/second 0.8 Mbytes/second 4 Mbytes/second 5.3 Mbytes/second
Sampling timing of DMA request
Between instruction execution cycles Between bus cycles
DMA service channel
In on-chip RAM area
In special function register
Specification method of transfer address Segment method
Linear method
Execution format in single-step mode 1 DMA transfer/1 instruction execution
DMA Interrupt request during DMA transfer Accepts only NMI
function (demand release mode)
1 DMA transfer/1 bus cycle
Not accepted
Number of necessary waits when
stop is controlled by DMARQ
(demand release mode)
Not necessary
2 waits
Transfer processing units
Byte/word
Byte/word
Byte
Byte/word
TC (terminal counter) setting value Number of times of DMA transfer
(Number of times of DMA transfer) – 1
Generation timing of terminal counter TC = 0
TC = FFFFH
TC output low-level width
Fixed
Expanded by wait insertion
Transmit clock output in
asynchronous mode (channel 0)
Not available
Available (SCK0 pin)
Serial Serial error register
interface Receive buffer full flag
Transmit buffer empty flag
Yes
No
No
www.DataSheet.co.kr
Serial status register
In serial status register
In serial status register
All sent flag
Interrupt
function
Interrupt source register
External data bus
No
No
8 bits
16 bits
In serial status register
Yes
8 bits
16 bits
Maximum operating frequency
8 MHz
10 MHz
3
Datasheet pdf - http://www.DataSheet4U.net/



No Preview Available !

PIN CONFIGURATION (Top View)
94-Pin Plastic QFP
µPD70325GJ-8-5BG
µPD70325GJ-10-5BG
µPD70325
A12
NC
A13
A14
A15
A16
A17
A18
A19
RxD0
GND
CTS0
TxD0
RxD1
CTS1
TxD1
P20/DMARQ0
IC
VDD
VDD
P21/DMAAK0
NC
P22/TC0
94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72
71
1 70
2 69
3 68
4 67
5 66
6 65
7 64
8 63
9 62
10 61
11 60
12 59
13 58
14
15
www.DataSheet.co.kr
57
56
16 55
17 54
18 53
19 52
20 51
21 50
22 49
23 48
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
P05
NC
IC
P04
P03
P02
P01
P00
EA
MREQ
IOSTB
MSTB
R/W
REFRQ
RESET
VDD
VDD
X2
X1
GND
GND
NC
NC
VTH
Remarks 1. NC : Non-Connection
2. IC : Internally Connected
Cautions 1. Fix IC pin individually to high level via a pull-up resistor externally.
2. Fix EA pin to low level.
4
Datasheet pdf - http://www.DataSheet4U.net/



D70325GJ-10 datasheet pdf
Download PDF
D70325GJ-10 pdf
View PDF for Mobile


Related : Start with D70325GJ-1 Part Numbers by
D70325GJ-10 UPD70325GJ-10 D70325GJ-10
NEC
D70325GJ-10 pdf

Index :   0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z   

This is a individually operated, non profit site. If this site is good enough to show, please introduce this site to others.
Since 2010   ::   HOME   ::   Contact