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參數(shù)資料
| 型號： | RB5C396 |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 總線控制器 |
| 英文描述： | PC Card Controller compliant with PCMCIA 2.1/JEIDA 4.2 |
| 中文描述： | PCMCIA BUS CONTROLLER, PBGA256 |
| 封裝： | 23 X 23 MM, PLASTIC, BGA-256 |
| 文件頁數(shù)： | 52/93頁 |
| 文件大?。?/td> | 449K |
| 代理商： | RB5C396 |
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RF5C296/RF5C396L/RB5C396/RF5C396
48
For the RF5C296 and the RF5C396, reset operation is conditional upon the POWERGOOD pin held at “L”and
the RESETDRV pin held at “H”. When not in use, therefore, the POWERGOOD pin should be held at “L”.
2.4 IRQ12 Pin and LED
VCC
IRQ12
Besides connection to the ISA bus, the IRQ12 pin is available in connection to the LED in the PCMCIA_ATA
Mode. Direct connection to the LED causes so large a current load to the IRQ12 pin that it should be connected in
series to a limiting resistor on the order of 300
to 1k
for connection to the VCC as shown in the figure below.
The limiting resistor should be regulated in such a manner that current flowing into the IC core does not exceed 20
mA.
Whether external decoding or internal decoding is used, note that an address for access to the I/O window (not
an address to access to the internal registers) is determined by decoding the address signals output from the SA23
to SA16 pins to (0000 0000)b.
2.3 RESETDRV and POWERGOOD Pins
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