Seiko Epson Corporation
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– TOKYO, Japan, August 27, 2008 –
Seiko Epson Corporation ("Epson") has developed the S1R72U01, Japan's first*1 USB controller LSI that includes dedicated software for connecting a mouse or keyboard. Sample shipments of the S1R72U01 have already begun. Recently, the principles of universal design have been employed in various devices, highlighting a growing trend towards ease of use. As interface tools that are very inexpensive and easy-to-use, the mouse and keyboard are increasingly being used with embedded devices other than personal computers. However, before connection between a mouse or keyboard and an embedded device can actually be achieved, developers must deal with the following issues:
Epson's newly-developed S1R72U01 incorporates all the USB software to enable connection with a mouse or keyboard in the chip, thus making it unnecessary for developers to have any knowledge at all about USB. Moreover, this product is able to connect with and control inexpensive CPUs in the 8-bit and 16-bit class and allows quick and easy connection with a mouse or keyboard and embedded devices.
*1 As of July 2008, based on studies carried out by Epson.
| Easy to use | Requires absolutely no knowledge of USB; control is possible with UART serial interface |
|---|---|
| Ideal for small systems | Control is possible with 8-bit or 16-bit CPU; package is small; compatible with various clocks |
| Compatible with mouse and keyboard | Equipped with human interface device class and USB host stack; development of USB software is completely unnecessary |
| Easy connection | UART serial interface allows for easy connection with CPU |
| Compatible with single source | Operates on single 3.0V to 5.5V power source |
| Small package | QFN, 7mm square, 48pin; QFP, 9mm square, 48pin |
1) USB host functions
2) Others
| CPU interface | UART serial interface |
|---|---|
| Power supply voltage | Single 3.0V to 5.5V power supply CPU interface = 1.8V to 5V |
| External clock | 12MHz and 24MHz crystal oscillator and ceramic resonator (direct input of 12MHz and 24MHz is possible) |
| Package | QFN package: 7mm square, 0.5mm pitch, 48pin QFP package: 9mm square (including lead), 0.5mm pitch, 48pin |
| Operating temperature range | -40°C to +85°C |
| Samples | Now shipping ($6.00 US) |
Release of an all-round model compatible with USB memory (master storage class) is scheduled for spring 2009.
About Epson
Epson is a global leader in imaging products including printers, 3LCD projectors and small- and medium-sized LCDs. With an innovative and creative culture, Epson is dedicated to exceeding the vision and expectations of customers worldwide with products known for their superior quality, functionality, compactness and energy efficiency.
Epson is a network of 88,925 employees in 109 companies around the world, and is proud of its ongoing contributions to the global environment and to the communities in which it is located. Led by the Japan-based Seiko Epson Corp., the Group had consolidated sales of 1,347 billion yen in fiscal 2007.
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Seiko Epson Corp.
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