Datasheet Microchip USB2641 — 数据表

USB2640/USB2641
Ultra Fast USB 2.0 MultiFormat Flash Media
Controller/USB Hub Combo
Datasheet PRODUCT FEATURES
General Description Features The SMSC USB2640/USB2641 is a USB 2.0 compliant, HiSpeed hub for USB port expansion with an attached mass
storage class peripheral controller. The controller allows
read/write capability to popular flash media from the following
families:
В„ Secure DigitalTM (SD) В„ MultiMediaCardTM (MMC) В„ xD-Picture CardTM (xD)1 В„ Memory StickВ®(MS) The USB2640/USB2641 is a fully integrated, single chip
solution providing USB expansion and integrated flash card
media reader/writer capability of ultra high performance
operation. Average sustained transfer rates exceeding 35 MB/s
are possible2. Highlights
В„ В„ Hub controller with internally connected ultra fast flash
media reader/writer and 2 exposed downstream ports for
external peripheral expansion В„ Compliant with the following flash media card specifications:
SD 2.0 / MMC 4.2 / MS 1.43 / MS-Pro 1.02 / MS-PRO-HG
1.01 / MS-Duo 1.10 / xD 1.2 В„ Supports a single external 3.3 V supply source; internal
regulators provide 1.8 V internal core voltage for additional
bill of materials and power savings В„ The transaction translator (TT) in the hub supports operation
of Full-Speed and Low-Speed peripherals В„ 9 K RAM | 64 K on-chip ROM В„ Enhanced EMI rejection and ESD protection performance В„ Onboard 24 MHz crystal driver circuit В„ Optional external 24 MHz clock input В„ Up to 9 GPIOs for special functions В„ 8051 8-bit microprocessor В„ Hub and flash media reader/writer configuration from a
single source: External I2C ROM or external SPI ROM Flash media reader/writer employs multiplexed card
interfaces which are optimized for use with single card …

USB2640i/USB2641i
Industrial Temperature USB 2.0
Flash Media Controller and
USB Hub Combo
Datasheet PRODUCT FEATURES
General Description Features The SMSC USB2640i/USB2641i is a USB 2.0 compliant, HiSpeed hub for USB port expansion with an attached mass
storage class peripheral controller. The controller allows
read/write capability to popular flash media from the following
families:
В„ Secure DigitalTM (SD) В„ MultiMediaCardTM (MMC) В„ xD-Picture Card В„ Memory StickВ®(MS) TM Highlights В„ В„ Compliant with the following flash media card specifications:
SD 2.0 / MMC 4.2 / MS 1.43 / MS-Pro 1.02 / MS-PRO-HG
1.01 / MS-Duo 1.10 / xD 1.2 В„ Supports a single external 3.3 V supply source; internal
regulators provide 1.8 V internal core voltage for additional
bill of materials and power savings В„ The transaction translator (TT) in the hub supports operation
of Full-Speed and Low-Speed peripherals В„ 9 K RAM | 64 K on-chip ROM В„ Enhanced EMI rejection and ESD protection performance В„ Onboard 24 MHz crystal driver circuit В„ Optional external 24 MHz clock input В„ Up to 9 GPIOs for special functions В„ 8051 8-bit microprocessor В„ Hub and flash media reader/writer configuration from a
single source: External I2C ROM or external SPI ROM (xD)1 The USB2640i/USB2641i is a fully integrated, single chip
solution providing USB expansion and integrated flash card
media reader/writer capability of ultra high performance
operation. Average sustained transfer rates exceeding 35 MB/s
are possible2. В„ В„ Hub controller with internally connected ultra fast flash
media reader/writer and 2 exposed downstream ports for
external peripheral expansion
Flash media reader/writer employs multiplexed card …