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Epson Introduces New USB 2.0 High-Speed Controller LSI Capable of Operating Two USB Ports Simultaneously


Seiko Epson Corporation (Epson) has developed the S1R72V18, 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 S1R72V Series products already in volume production have established an excellent reputation worldwide by making it possible for users to connect to computers and download high-volume files at super high speeds, and tap into USB memory to transmit music data at high speeds. In terms of standby power consumption, the S1R72V17 model consumes only 3.9 W of power during Sleep Mode. Due to their low power consumption and other features, the products have contributed greatly to the development of equipment and mobile terminals for which noise reduction is an extremely important factor.

The newly developed S1R72V18 takes advantage of the low power consumption of the S1R72V Series and enables isochronous transfer which is used when connecting to portable music players. In addition, the new model comes equipped with two high-speed USB 2.0 ports: one shared port for both device and host functions and one port exclusively for host functions. The S1R72V18 is the first model in the series to be capable of operating two USB ports simultaneously. The main target application for this model is car navigation systems for which multiple ports are becoming increasingly common. Consequently, the S2R72V18, which is now under development, will feature a guaranteed operating temperature range of -40C to 105C, and is expected to meet the specifications for the AEC-100 industry standard for automobile electronics quality.

Epson plans to continue to expand its lineup of USB 2.0 high-speed controller LSI products because they represent a key segment for the company. Epson hopes to establish itself as a leader in the USB market.

Features of S1R72V18
1) USB 2.0 host functions

* Equipped with two ports: Port 0 and Port 1 (Port 0 is a shared port for both host and device functions). Capable of operating two ports simultaneously: Port 0 for USB device functions and Port 1 for USB host functions
* Supports HS (480 Mbps), FS (12 Mbps), 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

* Equipped with one shared port for both host functions and device functions: Port 0
* Supports HS (480 Mbps) and FS (12 Mbps) transfer rates
* Supports control, bulk, interrupt, and isochronous transfer
* Supports one endpoint for control transfer in addition to five general endpoints for bulk, interrupt, and isochronous transfer

3) CPU interface

* Compatible with 16-bit width general CPU interface
* Includes DMA 2 ch (with one DMA, multiword procedure, and slave for each port)
* Voltage change of interface is possible: 1.8 V to 3.3 V (typical)

4) Miscellaneous

* Clock input: 12 MHz or 24 MHz crystal oscillator (oscillator circuit and 1 MΩ feedback resistor) (Epson Toyocom FA-128 or FA-238V recommended)
* Power supply voltage: USB-3.3 V, Internal-1.8 V, CPU Bus-1.8 V to 3.3 V (typical)
* Package: BGA package (S1/2R72V18B10E100)-10 mm square, 121 pin, 0.8 mm pitch; QFP package (S1/2R72V18F14E100)-12 mm square, 80 pin, 0.5 mm pitch
* Operating temperature range: -40C to 85C (S1R72V18)
-40C to 105C (S2R72V18 under development)

Software Development Support
Epson worked in collaboration with various partners to develop this product. The company provides extensive support to ensure efficient and smooth software product development. For additional information, please visit the Epson USB Users Site.

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 87,626 employees in 117 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 1416 billion yen in fiscal 2006.

Seiko Epson Corp.
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