The R5C853 is a single chip solution offering seven
PCI functions (a PCI bus bridge to a PC Card, an IEEE1394, an SD Card, a
MultiMediaCard, a Memory Stick, an xD Picture Card, and a Smart Card via a PC
Card) with an ExpressCard (USB Interface Type) switch. Almost all the Flash
Memory Cards currently in the market, allowing system designers to flexibly
configure systems necessary to interface with multiple Flash Memory
Cards.
The R5C853 uses an internal PLL for the high speed Media clock and
it is yielding the high performance.
Pin-out compatible with the R5C853:
R5C803 , R5C811, R5C841 , R5C843 , R5C847 |

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Package
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R5C853: |
CSP-208 (size=16x16, pitch=0.8, t=1.4max unit:mm)
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Device |
I/F |
16-bit/ 32-bit PCCard |
SD Card SDIO |
MMC |
MMC plus |
MS MSPro |
xD Picture Card |
Smart Card |
IEEE 1394 |
| R5C853 |
PCI Bus |
1-slot |
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(*1) |
(*2) |
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1 port |
*1) SD/SDIO/MMC automatic configuration functionality
is supported. *2) MMCplus 8bit data bus is supported.
Power Supply
Voltage: 3.3V±0.3V Operating Ambient Temperature Range: 0~70°C |
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To Top |
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| The R5C853 uses an internal PLL for the high speed
Media clock. and it is yielding the high
performance. |
| Due to the originally developed hardware design, power
consumption during Suspend mode has been drastically reduced.
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SD Card/SDIO/MMC Automatic Configuration
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| The R5C853 supports SD/SDIO/MMC automatic
configuration functionality, which makes it possible to support SD/SDIO/MMC in
the same slot by use of RICOH's dedicated MMC driver.
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| The internal regulator allows 3.3V single power operation. |
•Personal computers (laptop,
palmtop, stylus-operated or tablet PC)
•Docking stations
•Car navigation systems
•PDA
•Systems with PC Card slots,
etc.
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