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參數(shù)資料
| 型號： | RL5C478A |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 總線控制器 |
| 英文描述： | PCI BUS CONTROLLER, PQFP256 |
| 封裝： | 28 X 28 MM, 1.70 MM HEIGHT, 0.40 MM PITCH, PLASTIC, LQFP-256 |
| 文件頁數(shù)： | 1/43頁 |
| 文件大小： | 472K |
| 代理商： | RL5C478A |
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12345 1998
REV 2.0
1
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RL5C478A PCI-CARDBUS BRIDGE DATA SHEET
1 OVERVIEW
The RL5C478A/RB5C478A is a PC card controller offering a single chip solution as a bridge
between PCI bus and CardBus. The RL5C478A/RB5C478A includes two PC Card 95 compliant
sockets interface and a bridge function to the PCI bus of 33Mhz. The RL5C478A/RB5C478A can
support the 32-bit CardBus(Card-32) and the 16-bit PC card(Card-16) without external buffers.
Concerning the card control interface, the RL5C478A/RB5C478A‘s register is compatible with the
Intel 82365SL and Ricoh’s RF5C396/366 in order to maintain backward compatibility with the
existing 16-bit PC Card compliant with PCMCIA2.1/JEIDA4.2. All PC card interface signals are
individually buffered to allow direct connection to CardBus and Hot insertion/removal without external
buffers. The RL5C478A/RB5C478A also allows direct connection to PCI bus.
The PCI interface and PC card socket interface have their own power supply terminals that can be
powered at either 3.3V or 5V for compatibility with 3.3V and 5V signaling environments. The core
logic is powered at 3.3V.
The RL5C478A/RB5C478A allows the system to be equipped with the high performance multimedia
PC cards like the Video capture card.
The RL5C478A/RB5C478A is compatible with RL5C476(208pin LQFP) without the internal ZV
buffers.
u
PC97/98 compliant
PC97 Design Guide compliant (Subsystem ID, Subsystem Vender ID).
ACPI 1.0 and PCI Bus Power Management 1.0 compliant
u
Low Power consumption
Hardware Suspend
CLKRUN#,CCLKRUN# support
u
High-performance
u
Single Chip PCI-CardBus Bridge
2 PCMCIA PC-Card 95 sockets support
CardBus(Card-32) Card and 16-bit(PCMCIA2.1/JEIDA4.2) Card work at the same time
Bridge function between PCI bus and CardBus
u
PCI Bus Interface
Compliant with PCI Local Bus Specification2.1
The maximum frequency 33MHz
PCI Master/Target protocol support
Separated PCI configuration each socket
Direct connection to PCI bus
Version
2.0
Jan. 13,1998
Microsoft, Windows, the Windows logo, and Windows NT are registered trademarks of Microsoft Corporation.
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