w86l488y-ay Winbond Electronics Corp America, w86l488y-ay Datasheet - Page 4

• Manufacturer Part Number: w86l488y-ay
• Description: Winbond Host Interface Sd/sdio/mmc Memory Card Bridge
• Manufacturer: Winbond Electronics Corp America

1. GENERAL DESCRIPTION
The W86L488 is a SD/SDIO/MMC interface bridge between microprocessor and SD/SDIO/MMC
applications. The data width of microprocessor should be 16-bits. W86L488 supports synchronous or
asynchronous type of host interface. It also supports interrupt or DMA mode to improve data transfer
performance. By W86L488 internal register controlled and monitored, you can easily trace the signal
between microprocessor and application I/F. There are two host interface are supported by
W86L488Y/AY. Type 1 utilizes with microprocessors like Intel XScale, ARM/Strong ARM series,
Hitachi SHx series and Toshiba Micro-controllers. Type 2 utilizes with microprocessors like Fujitsu
SparcLite series. W86L488Y/AY can meet the most of IA devices requirement, such as PDA, Cellular
Phone, DSC, and MP3 player applications and reserve the flexibility of your design.
2. FEATURES
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Ordering Information
PART NUMBER
W86L488Y
W86L488AY
Compliant with SD and SDIO spec. Version 1.01.
Compliant with MMC spec. Version 3.X.
Support SD/MMC card commands in SPI mode
Simultaneously access two ports of SD/SDIO/MMC supported. (W86L488AY only)
Support physical layer commands of SD/SDIO/MMC interface.
Support SD/MMC and SPI mode for SD/SDIO/MMC interface.
Support SDIO interrupt and bus suspend/resume operation.
Built-in 128 bytes data buffer for data transmit (send/receive).
Support two types of Host microprocessor Interface access – synchronous and asynchronous.
DMA and Interrupt transfer mode supported.
Host microprocessor Interface support (Such as: Motorola's Dragon Ball series;Intel's Strong
ARM, ARM series; Hitachi's
Support 8/16 bits data bus of Microprocessor I/F.
Built-in 3.58 to 25MHz crystal driver circuit, support external oscillator or crystal clock.
Operation voltage: 2.7~3.6V for SD/SDIO/MMC, 2.5/3.3V for Host CPU interface.
48/64-pin QFN package.
1Port SD/SDIO/MMC
2Port SD/SDIO/MMC
DESCRIPTION
SHx
series; Fujisui's FR30)
PACKAGE TYPE PB FREE
48-PIN QFN
64-PIN QFN
- 1 -
Yes
Yes
Publication Release Date: June 04, 2006
Commercial, 0
Commercial, 0
PRODUCTION FLOW
W86L488
o
o
C to +70
C to +70
Revision 1.21
o
o
C
C