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USB1T11AMTC Dataheets PDF



Part Number USB1T11AMTC
Manufacturers Fairchild Semiconductor
Logo Fairchild Semiconductor
Description Universal Serial Bus Transceiver
Datasheet USB1T11AMTC DatasheetUSB1T11AMTC Datasheet (PDF)

USB1T11A Universal Serial Bus Transceiver November 1999 Revised December 1999 USB1T11A Universal Serial Bus Transceiver General Description The USB1T11A is a one chip generic USB transceiver. It is designed to allow 5.0V or 3.3V programmable and standard logic to interface with the physical layer of the Universal Serial Bus. It is capable of transmitting and receiving serial data at both full speed (12Mbit/s) and low speed (1.5Mbit/s) data rates. The input and output signals of the USB1T11A co.

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USB1T11A Universal Serial Bus Transceiver November 1999 Revised December 1999 USB1T11A Universal Serial Bus Transceiver General Description The USB1T11A is a one chip generic USB transceiver. It is designed to allow 5.0V or 3.3V programmable and standard logic to interface with the physical layer of the Universal Serial Bus. It is capable of transmitting and receiving serial data at both full speed (12Mbit/s) and low speed (1.5Mbit/s) data rates. The input and output signals of the USB1T11A conform with the “Serial Interface Engine”. Implementation of the Serial Interface Engine along with the USB1T11A allows the designer to make USB compatible devices with off-theshelf logic and easily modify and update the application. Features s Complies with Universal Serial Bus specification 1.1 s Utilizes digital inputs and outputs to transmit and receive USB cable data s Supports 12Mbit/s “Full Speed” and 1.5Mbit/s “Low Speed” serial data transmission s Compatible with the VHDL “Serial Interface Engine” from USB Implementers’ Forum s Supports single-ended data interface s Single 3.3V supply s ESD Performance : Human Body Model > 4000 V Ordering Code: Order Number USB1T11AM USB1T11AMTC Package Number M14A MTC14 Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Connection Diagram Logic Diagram © 1999 Fairchild Semiconductor Corporation DS500234 www.fairchildsemi.com USB1T11A Pin Descriptions Pin Name RCV OE# MODE I/O O I I Description Receive data. CMOS level output for USB differential input Output Enable. Active LOW, enables the transceiver to transmit data on the bus. When not active the transceiver is in receive mode. Mode. When left unconnected, a weak pull-up transistor pulls it to VCC and in this GND, the VMO/FSEO pin takes the function of FSEO (Force SEO). Inputs to differential driver. (Outputs from SIE). MODE 0 VPO 0 0 VPO, VMO/FSEO I 1 1 1 0 0 1 1 VMO/FSEO 0 1 0 1 0 1 0 1 RESULT Logic “0” SE0# Logic “1” SEO# SE0# Logic “0” Logic “1” Illegal code Gated version of D− and D+. Outputs are logic “0” and logic “1”. Used to detect single ended zero (SE0#), error conditions, and interconnect speed. (Input to SIE). VP VP, VM O 0 0 1 1 D+, D− SUSPND SPEED VCC GND AI/O I I VM 0 1 0 1 RESULT SE0# Low Speed Full Speed Error Data+, Data−. Differential data bus conforming to the Universal Serial Bus standard. Suspend. Enables a low power state while the USB bus is inactive. While the suspend pin is active it will drive the RCV pin to a logic “0” state. Both D+ and D− are 3-STATE. Edge rate control. Logic “1” operates at edge rates for “full speed”. Logic “0” operates edge rates for “low speed”. 3.0V to 3.6V power supply Ground reference Functional Truth Table Input Mode 0 0 0 0 1 1 1 1 X X X = Don’t Care Z = 3-STATE U = Undefined State I/O OE 0 0 0 0 0 0 0 0 1 1 SUSPND 0 0 0 0 0 0 0 0 0 1 D+ 0 0 1 0 0 0 1 1 Z Z D− 1 0 0 0 0 1 0 1 Z Z RCV 0 U 1 U U 0 1 U U U Outputs VP 0 0 1 0 0 0 1 U U U VM 1 0 0 0 0 1 0 U U U Result Logic 0 SEO# Logic 1 SEO# SEO# Logic 0 Logic 1 Illegal Code D+/D− Hi-Z D+/D− Hi-Z VPO 0 0 1 1 0 0 1 1 X X VMO/FSEO 0 1 0 1 0 1 0 1 X X www.fairchildsemi.com 2 USB1T11A Absolute Maximum Ratings(Note 1) DC Supply Voltage (VCC) DC Input Diode Current (IIK) VI < 0 Input Voltage (VI) (Note 2) Input Voltage (VI/O) Output Diode Current (IOK) VO > VCC or VO < 0 Output Voltage (VO) (Note 2) Output Source or Sink Current (IO) VP.VM, RCV pins VO = 0 to VCC Output Source or Sink Current (IO) D+/D− pins VO = 0 to VCC VCC or GND Current (ICC , IGND) Storage Temperature (TSTO) ±50 mA ±100 mA −60°C to + 150°C ±15 mA −0.5V to VCC + 0.5V ±50 mA −0.5V to +5.5V −0.5V to VCC + 0.5V −50 mA −0.5V to +7.0V Recommended Operating Conditions Supply Voltage VCC Input Voltage (VI) Input Range for AI/O (VAI/O) Output Voltage (VO) Operating Ambient Temperature in free air (Tamb) −40°C to +85°C 3.0V to 3.6V 0V to 5.5V 0V to VCC 0V to VCC Note 1: The Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristic tables are not guaranteed at the absolute maximum rating. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Note 2: The input and output voltage ratings may be exceeded if the input and output clamp current ratings are observed. DC Electrical Characteristics (Digital Pins) Over recommended range of supply voltage and operating free air temperature (unless otherwise noted). VCC = 3.0V to 3.6V Limits Symbol Parameter INPUT LEVELS: VIL VIH VOL VOH LOW Level Input Voltage HIGH Level Input Voltage OUTPUT LEVELS: LOW Level Output Voltage HIGH Level Output Voltage LEAKAGE CURRENT: IL ICCFS ICCLS .


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