w86l388-dg Winbond Electronics Corp America, w86l388-dg Datasheet - Page 3

• Manufacturer Part Number: w86l388-dg
• Description: Winbond Host Interface Sd/mmc Memory Card Bridge
• Manufacturer: Winbond Electronics Corp America

1. GENERAL DESCRIPTION
The W86L388D is a SD/MMC host interface bridge used between host microprocessor and SD/MMC.
The data width of host microprocessor can be 8-bit or 16-bit. W86L388D can support synchronous or
asynchronous type of host interface. It also supports DMA or Interrupt type of transfer mode to
improve data transfer performance between host microprocessor and SD/MMC. W86L388D is fit for
most of IA devices, such as PDA, Cellular Phone, DSC, and MP3 player.
2. FEATURES
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Ordering Information
Part Number
W86L388D
Compliant with SD spec. Version 1.0
Compliant with MMC spec. Version 2.2
Support two types of host microprocessor interface access--synchronous and asynchronous mode
DMA and Interrupt transfer mode supported
Host microprocessor 8/16 bit data bus
Built-in crystal driver circuit, support external oscillator or crystal clock
Extra 5 programmable GPIO supported
Wide range of clock input from 3.58MHz up to 25MHz
3.3V opereation
48-pin LQFP package
Package Type
48-PIN LQFP
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Publication Release Date: May 17, 2005
Production Flow
Commercial, 0
W86L388D
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C to +70
Revision 1.0
o
C