- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370865 > M38024M5 (Mitsubishi Electric Corporation) SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER PDF資料下載
參數(shù)資料
| 型號(hào)： | M38024M5 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片8位CMOS微機(jī) |
| 文件頁數(shù)： | 32/51頁 |
| 文件大小： | 692K |
| 代理商： | M38024M5 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁當(dāng)前第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁
MITSUBISHI MICROCOMPUTERS
3802 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
32
Bus control with memory expansion
The 3802 group has a built-in ONW function to facilitate access to
external memory and I/O devices in memory expansion mode or
microprocessor mode.
If an “L” level signal is input to the ONW pin when the CPU is in a
read or write state, the corresponding read or write cycle is ex-
tended by one cycle of
φ
. During this extended period, the RD or
WR signal remains at “L”. This extension period is valid only for
writing to and reading from addresses 0000
16
to 0007
16
and
0440
16
to FFFF
16
in microprocessor mode, 0440
16
to YYYY
16
in
memory expansion mode, and only read and write cycles are ex-
tended.
Fig. 34 ONW function timing
φ
Read cycle
Write cycle
Dummy cycle Write cycle
Read cycle Dummy cycle
AD
15
to AD
0
Period during which ONW input signal is received
During this period, the ONW signal must be fixed at either “H” or “L”. At all other times, the input level of the ONW
signal has no affect on operations.
The bus cycles is not extended for an address in the area 0008
16
to 043F
16,
regardless of whether the ONW signal
is received.
8
:
8
8
8
ONW
WR
RD
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M38024M6 | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38024M7 | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38024M8 | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38025E1 | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38025E2 | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M38027E8FP | 制造商:Renesas Electronics Corporation 功能描述:M16C FLASH 256K/20K, 24MHZ,DMA,I2C,IEBU - Trays |
| M38027E8FP#U0 | 制造商:Renesas Electronics Corporation 功能描述:M16C FLASH 256K/20K, 24MHZ,DMA,I2C,IEBU -LEAD FREE VERSION - Trays |
| M38027E8FS | 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT 740 CISC 32KB EPROM 3.3V/5V 64CLCC - Bulk |
| M38027E8SS | 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT 740 CISC 32KB EPROM 3.3V/5V 64PIN SDIP - Bulk |
| M3802-BLACK-100 | 制造商:Alpha Wire 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。