Datasheet > USS-820FD

USS-820FD

更新时间： 2024-11-27 03:22:51

品牌	Logo	应用领域
杰尔 - AGERE		控制器
页数	文件大小	规格书
56页	846K
描述
USB Device Controller

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数据手册

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USS-820FD 数据手册

Data Sheet, Rev. 1

August 2004

USS-820FD

USB Device Controller

Features

New Features After Revision B

■ Full compliance with the Universal Serial Bus

Specification Revision 1.1.

■ New, centralized FIFO status bits and interrupt out-

put pin reduce firmware load.

■ Backward compatible with USS-820B, USS-820C,

■ New, additional nonisochronous transmit mode

and USS-820D revisions.

allows NAK response to cause interrupt.

■ Self-powered or bus-powered USB device. Meets

USB power specifications for bus-powered

devices.

■ Isochronous behavior enhancements simplify firm-

ware control.

■ Additional FIFO sizes for nonisochronous end-

■ Full-speed USB device (12 Mbits/s).

points.

■ USB device controller with protocol control and

■ USB reset can be programmed to clear device

administration for up to 16 USB endpoints.

address.

■ Supports control, interrupt, bulk, and isochronous

■ USB reset output status pin.

transfers for all 16 endpoints.

■ Firmware ability to wake up and reset a suspended

■ Programmable endpoint types, FIFO sizes, and

internal 1120-byte logical (2240-byte physical for

dual-packet mode) shared FIFO storage allow a

wide variety of configurations.

device.

■ Lower power.

■ 5 V supply no longer required for 5 V tolerant oper-

ation.

■ Dual-packet mode of FIFOs reduces latency.

■ Supports USB remote wake-up feature.

Applications

■ On-chip crystal oscillator allows external 12 MHz

crystal or 3 V/5 V clock source.

■ Suitable for peripherals with embedded micropro-

cessors.

■ On-chip analog PLL creates 48 MHz clock from

internal 12 MHz clock.

■ Glueless interface to microprocessor buses.

■ Integrated USB transceivers.

■ Support of multifunction USB implementations,

such as printer/scanner and integrated multimedia

applications.

■ 5 V tolerant I/O buffers allow operation in 3 V or

5 V system environments for 0 °C to 70 °C temper-

ature range.

■ Suitable for a broad range of device class peripher-

als in the USB standard.

■ 5 V tolerant I/O buffers allow operation in 3 V only

system environments for –20 °C to +85 °C temper-

ature range.

■ Implemented in Agere Systems Inc. 0.25 µm, 3 V

standard-cell library.

■ 48-ball TFSBGAC. (Lead-free package also avail-

able. (See Ordering Information on page 51.)

■ Evaluation kit available.

Note: Advisories are issued as needed to update product information. When using this data sheet for design purposes, please contact

your Agere Systems Account Manager to obtain the latest advisory on this product.

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