Datasheet > USS820TD-DB

USS820TD-DB

更新时间： 2024-11-23 22:08:23

品牌	Logo	应用领域
杰尔 - AGERE		控制器
页数	文件大小	规格书
58页	819K
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USS-820D USB Device Controller

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USS820TD-DB 数据手册

Data Sheet, Rev. 4

June 2001

USS-820D

USB Device Controller

Features

New Features After Revision B

^IFull compliance with the Universal Serial Bus

Specification Revision 1.1.

^INew, centralized FIFO status bits and interrupt out-

put pin reduce firmware load.

^IBackward compatible with USS-820B and

^INew, additional nonisochronous transmit mode

USS-820C revisions.

allows NAK response to cause interrupt.

^ISelf-powered or bus-powered USB device. Meets

USB power specifications for bus-powered

devices.

^IIsochronous behavior enhancements simplify firm-

ware control.

^IAdditional FIFO sizes for nonisochronous end-

^IFull-speed USB device (12 Mbits/s).

points.

^IUSB device controller with protocol control and

^IUSB reset can be programmed to clear device

address.

administration for up to 16 USB endpoints.

^ISupports control, interrupt, bulk, and isochronous

transfers for all 16 endpoints.

^IProgrammable endpoint types and FIFO sizes and

internal 1120-byte logical (2240-byte physical for

dual-packet mode) shared FIFO storage allow a

wide variety of configurations.

^IUSB reset output status pin.

^IFirmware ability to wake up and reset a suspended

device.

^ILower power.

^I5 V supply no longer required for 5 V tolerant oper-

ation.

^IDual-packet mode of FIFOs reduces latency.

^ISupports USB remote wake-up feature.

Applications

^IOn-chip crystal oscillator allows external 12 MHz

crystal or 3 V/5 V clock source.

^ISuitable for peripherals with embedded micropro-

cessors.

^IGlueless interface to microprocessor buses.

^ISupport of multifunction USB implementations,

such as printer/scanner and integrated multimedia

applications.

^IOn-chip analog PLL creates 48 MHz clock from

internal 12 MHz clock.

^IIntegrated USB transceivers.

^I5 V tolerant I/O buffers allow operation in 3 V or 5

V system environments for 0 °C to 70 °C tempera-

ture range.

^I5 V tolerant I/O buffers allow operation in 3 V only

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

ature range.

^ISuitable for a broad range of device class periph-

erals in the USB standard.

^IImplemented in Agere Systems Inc. 0.25 µm, 3 V

standard-cell library.

^I44-pin MQFP (USS-820D).

^I48-pin TQFP (USS-820TD).

^IEvaluation 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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