USB4640 Overview
The SMSC USB4640/USB4640i is a Hi-Speed HSIC USB hub and card reader bo solution with an upstream port pliant to HSIC 1.0, a supplement to the USB 2.0 specification. The two downstream ports are pliant with the USB 2.0 specification. High Speed Inter-Chip (HSIC) is a digital interconnect bus that enables the use of USB technology as a low-power chip-to-chip interconnect at speeds up to 480 Mb/s.
USB4640 Key Features
- Secure DigitalTM (SD) MultiMediaCardTM (MMC) Memory Stick® (MS) xD Picture CardTM (xD)1 Features
- Datasheet
- The USB4640/USB4640i offers a versatile, cost-effective, and energy-efficient hub controller with 2 downstream USB 2.0 p
- Configures internal code using an external I2C EEPROM
- Supports external code using an SPI Flash EEPROM
- Customizable vendor ID, product ID, and language ID if using an external EEPROM
- Upstream HSIC port and 2 exposed Hi-Speed USB 2.0 downstream ports for external peripheral expansion The dedicated flash
- a single or multiplexed flash media reader interface
- Flexible port mapping and port disable sequencing supports multiple platform designs
- Up to 9 configurable GPIOs for special functions The USB