Electronic Components Datasheet Search |
|
LT1342 Datasheet(PDF) 1 Page - Linear Technology |
|
LT1342 Datasheet(HTML) 1 Page - Linear Technology |
1 / 8 page 1 LT1342 5V RS232 Transceiver with 3V Logic Interface S FEATURE The LT ®1342 is an advanced low power three-driver, five- receiver RS232 transceiver. The LT1342 operates from a 5V supply and a 3V logic supply. Receiver outputs can interface directly to 3V logic circuits. Included on the chip is a shutdown pin for reducing supply current to near zero. All receivers and drivers assume high impedance states during shutdown. The driver disable function provides additional control of operating mode. When driver disable is high the charge pump and drivers turn off. Receivers continue to operate during driver disable. New ESD structures on the chip allow the LT1342 to survive multiple ±10kV strikes, eliminating the need for costly TransZorbs ® on the RS232 line pins. The LT1342 is fully compliant with all EIA RS232 specifi- cations and operates in excess of 120kbaud even driving heavy capacitive loads. s ESD Protection Over ±10kV s 3V Logic Interface s Uses Small Capacitors: 0.1 µF, 0.2µF s 1 µA Supply Current in Shutdown s Low Power Driver Disable Operating Mode s Pin Compatible with LT1137A s 120kBaud Operation for RL = 3k, CL = 2500pF s 250kBaud Operation for RL = 3k, CL = 1000pF s CMOS Comparable Low Power: 60mW s Operates from a 5V Supply and 3V Logic Supply s Easy PC Layout: Flowthrough Architecture s Rugged Bipolar Design s Outputs Assume a High Impedance State When Off or Powered Down s Absolutely No Latchup DESCRIPTIO , LTC and LT are registered trademarks of Linear Technology Corporation. TransZorb is a registered trademark of General Instruments, GSI. s Notebook Computers s Palmtop Computers S APPLICATI Output Waveforms R LT1342 • TA02 APPLICATI TYPICAL RECEIVER OUTPUT VL = 3V CL = 50pF DRIVER OUTPUT RL = 3k CL = 2500pF INPUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 5V VCC DRIVER 1 OUT RX1 IN DRIVER 2 OUT RX2 IN RX3 IN RX4 IN DRIVER 3 OUT RX5 IN ON/OFF 3V VL DRIVER 1 IN RX1 OUT DRIVER 2 IN RX2 OUT RX3 OUT RX4 OUT DRIVER 3 IN RX5 OUT V+ 0.1 µF 2 × 0.1µF 2 × 0.1µF 0.1 µF GND DRIVER DISABLE TO LINE TO 3V LOGIC V – LT1342 • TA01 LT1342 NC |
Similar Part No. - LT1342 |
|
Similar Description - LT1342 |
|
|
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 |