 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
XR20V2172IL64 Datasheet(PDF) 1 Page - Exar Corporation |
|
||||||||||||||||||||||||||||||
XR20V2172IL64 Datasheet(HTML) 1 Page - Exar Corporation |
|
|
1 / 53 page  Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7000 • FAX (510) 668-7017 • www.exar.com XR20V2172 TWO CHANNEL I2C/SPI UART WITH 64-BYTE FIFO AND RS232 TRANSCEIVER JULY 2008 REV. 1.0.1 GENERAL DESCRIPTION The XR20V21721 (V2172) is a high performance two channel universal asynchronous receiver and transmitter (UART) with 64 byte TX and RX FIFOs, a selectable I2C/SPI slave interface and RS232 transceiver. The V2172 operates from 3.3 to 5.5 volts. The enhanced features in the V2172 include a programmable fractional baud rate generator, an 8X and 4X sampling rate that allows for a maximum baud rate of 1 Mbps at 3.3V. The standard features include 16 selectable TX and RX FIFO trigger levels, automatic hardware (RTS/CTS) and software (Xon/ Xoff) flow control, and a complete modem interface. Onboard registers provide the user with operational status and data error flags. An internal loopback capability allows system diagnostics. The V2172 is available in the 64-pin QFN. NOTE: 1 Covered by U.S. Patent #5,649,122 APPLICATIONS • Portable Appliances • Battery-Operated Devices • Cellular Data Devices • Factory Automation and Process Controls FEATURES • Selectable I2C/SPI Interface • Meets true EIA/TIA-232-F Standards from +3.3V to +5.5V operation • Data rate up to 1 Mbps • 45us sleep mode exit (charge pump to full power) • ESD protection for RS-232 I/O pins at ■ +/-15kV - Human Body Model ■ +/-15kV - IEC 61000-4-2, Air-Gap Discharge ■ +/- 8kV - IEC 61000-4-2, Contact Discharge • Full-featured UART ■ Fractional Baud Rate Generator ■ Transmit and Receive FIFOs of 64 bytes ■ 16 Selectable TX and RX FIFO Trigger Levels ■ Automatic Hardware (RTS/CTS) Flow Control ■ Automatic Software (Xon/Xoff) Flow Control ■ Halt and Resume Transmission Control ■ Automatic sleep mode ■ General Purpose I/Os ■ Full modem interface • 64-QFN packages FIGURE 1. XR20V2172 BLOCK DIAGRAM U A R T R S -2 32 T ra n sc eiver Cry s ta l Os c /B u ffe r BR G 6 4 B y te TX & R X FIFO M ode m I/O s TX A RX A RT S A # DT RA # CT S A # DS RA # RIA # CDA # C h arge P u m p TXD A RT S A DT RA 5K RX DA 5K CT S A 5K DS RA 5K RIA 5K CDA VR EF + VR EF - C h a nne l B CDB # RIB # DS R B # CT S B # C h a nne l A DT RB # RT S B # TXB RX B C h an ne l B Tra n s c e iv e r Ch A T ra n s c e iv e r CDB RIB DS RB CT S B DT RB RT S B TXD B RX DB I2 C /S P I# SD A SC K A0 /C SA# A1 /S I SO IR Q # RE S E T # R XB_ SEL TXB RX B |
Similar Part No. - XR20V2172IL64 |
|
Similar Description - XR20V2172IL64 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
