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參數(shù)資料
| 型號： | MB91121PFV |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 50 MHz, RISC MICROCONTROLLER, PQFP120 |
| 封裝： | PLASTIC, LQFP-120 |
| 文件頁數(shù)： | 55/100頁 |
| 文件大?。?/td> | 2316K |
| 代理商： | MB91121PFV |
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MB91121 Series
58
DS07-16303-4E
13. External Bus Interface
The external bus interface controls the interface between the device and the external memory and also the
external I/O, and has the following features.
25-bit (32 Mbytes) address output
6 independent banks owing to the chip select function.
Can be set to anywhere on the logical address space for minimum unit 64 Kbytes.
Total 32 Mbytes
× 6 area setting is available by the address pin and the chip select pin.
8/16-bit bus width setting are available for every chip select area.
Programmable automatic memory wait (Max. for 7 cycles) can be inserted.
DRAM interface support
Three kinds of DRAM interface : Double CAS DRAM (normally DRAM I/F)
Single CAS DRAM
Hyper DRAM
2 banks independent control (RAS, CAS, etc. control signals)
DRAM select is available from 2CAS/1WE and 1CAS/2WE.
Hi-speed page mode supported
CBR/self refresh supported
Programmable wave form
Unused address/data pin can be used for I/O port.
Little endian mode supported
Clock doublure : Internal bus 50 MHz, external bus 25 MHz
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相關(guān)代理商/技術(shù)參數(shù) |
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| MB91133 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-Bit RISC Microcontroller |
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| MB91150 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontrollers |
| MB91151A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit Proprietary Microcontrollers |
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