Acer One 522, Service Manual, Page: 51 / 232

Hardware Specifications and Configurations
1-41
Card Reader
Item Specification
Chipset ENE UB6252
Package 32 Pin QFN
Maximum supported size SD card: SD Memory Card Specification Version 2.0
xD card: Compliant with xD-Picture Card Specification Version 1.2
MMC card: MultiMedia Card Specification Version 4.2
MS Pro: Memory Stick PRO Format Specification Version 1.x
Features

32 Pin QFN

Built-in 250mA Power MOS for memory card

Over Current Protection and Over Temperature Protection

Built-in LDO

Power Saving

Power Down when no memory card is inserted

Power Idle (Selective Suspend)

USB Interface
Compliant with Universal Serial Bus Specification Revision 2.0
Compliant with Universal Serial Bus Mass Storage Class Bulk-Only

Transport Specification Revision 1.0

Support both High-Speed (480 Mbps) and Full-Speed (12
Mbps) Data Transfer

Embedded High Speed/Full Speed Transceiver

Clock source: 12MHz crystal

Secure Digital/MultiMedia Card Interface

Compliant with SD Memory Card Specification Version 2.0

Compliant with MultiMedia Card Specification Version 4.2

Support High Speed SD 4-bit Data Transfer Mode

Support High Speed MMC 8-bit Data Transfer Mode

Support Write Protection Switch

Memory Stick Interface

Compliant with Memory Stick PRO Format Specification Version
1.x

Compliant with Memory Stick PRO-HG Duo Format
Specification Version 1.x

Support 4-bit and 8-bit Parallel Data Transfer Mode

xD- Picture Card Interface

Compliant with xD-Picture Card Specification Version 1.2
(support multi-plane)

Support Hardware ECC (1-bit correction and 2-bits detection)
Generation