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Epson Expands Its Lineup of In-Vehicle High-Speed USB Controller LSIs


- TOKYO, Japan, September 20, 2006 - Seiko Epson Corp. (“Epson”) has developed the S2R72C05, the newest product in its S1R72V Series of USB controller LSI products that are compatible with high-speed USB 2.0. Shipments of samples of the new model have already commenced. The product’s advantages are that it is equipped with USB 2.0 high-speed-compatible ports for both its device and host functions, and has a HDD interface built into a single chip. By launching this new model, Epson has further expanded and reinforced its lineup of USB controller LSI products.

The newly developed S2R72C05 model takes advantage of the excellent functions and low power consumption of the previously developed S1R72V05 model which is already in mass production. In addition, the S2R72C05 enables isochronous transfer which is used when connecting to portable media players. The main target application for this product is HDD-installed car navigation systems. Consequently, it features a guaranteed operating temperature range of -40°C to 110°C and meets the specifications for the AEC-Q100 industry standard for automobile electronics quality.

*AEC-Q100: A quality testing procedure for integrated circuits developed by the Automotive Industry Action Group (AIAG).

Information on USB Controller LSI products developed by the Epson Semiconductor Operations Division
The USB controller LSI products developed by the Epson Semiconductor Operations Division have achieved an excellent reputation worldwide due to their use of Epson’s core semiconductor technologies including low power consumption and high-speed data transmission functions. With the S1R72V05 in particular, Epson succeeded in making it possible to connect to computers and download high-volume files such as map data at super high speeds, and tap into USB memory to transmit music data at high speeds. In terms of standby power consumption, this model consumes only 0.072 mW of power during Sleep Mode. Due to its low power consumption and other features, the S1R72V05 has contributed greatly to the development of car navigation devices for which noise reduction is an extremely important factor.

The newly released S2R72C05 model has inherited all the excellent features of the S1R72V05, and also facilitates simple installation of the USB function into automobile electronics equipment such as car navigation systems.

Because USB 2.0 high-speed controller products represent such a key segment for the company, Epson will continue to expand its lineup of these products.

Features of S2R72C05
1) USB 2.0 host functions

* Supports HS (480 Mbps), FS (12 Mbps), and LS (1.5 Mbps) transfer rates
* Supports control, bulk, interrupt, and isochronous transfer
* Built-in pull-down resistance for downstream port (external circuit not required)
* USB power switch interface

2) USB 2.0 device functions

* Supports HS (480 Mbps) and FS (12 Mbps) transfer rates
* Supports control, bulk, interrupt, and isochronous transfer
* Supports Endpoint 0 in addition to five general Endpoints (for bulk/interrupt/isochronous transfer)

3) CPU interface

* Compatible with 16-bit width general CPU I/F
* Includes DMA 2ch (Multiword procedure)
* Voltage change of interface is possible (3.3 V-1.8 V Typ)

4) HDD interface (IDE)

* Compatible with ATA/ATAPI6
* PIO mode 0-4, Multiword DMA, UDMA mode 0-5

5) Miscellaneous

* Clock input: 12 MHz, 24 MHz, crystal oscillator compatibility (1 MΩ internal feedback resistor and oscillator circuit)
* Power supply voltage: USB-3.3 V, Internal-1.8 V, IDE-3.3 V, CPU Bus-1.8 V to 3.3 V
* Package: BGA package (121 pin, 8 mm square, 0.65 mm pitch, full grid, 1.2 mm thick), BGA package (121 pin, 10 mm square, 0.8 mm pitch, 1.2 mm thick), QFP package (128 pin, 14 mm square, 0.4 mm pitch, 1.7 mm thick)
* Operating temperature range: -40°C to 110°C

Software development support
Epson worked in collaboration with various partners to develop the S2R72C05. The company provides extensive support to ensure efficient and smooth software product development.

S1R72V Series partners
Software vendor: eSOL Co., Ltd. (

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 90,701 employees in 120 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 1549.5 billion yen in fiscal 2005.


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