LTC1343IGW#PBF

LTC1343IGW#PBF is a 4-driver/4-receiver multiprotocol transceiver that operates from a single 5V supply. Two LTC1343s form the core of a complete software-selectable DTE or DCE interface port that supports the RS232, RS449, EIA-530, EIA-530-A, V.35, V.36, or X.21 protocols. Cable termination may be implemented using the LTC1344 software-selectable cable termination chip or by using existing discrete designs. The LTC1343 runs from a single 5V supply using an internal charge pump that requires only five space-saving surface mount capacitors. The mode pins are latched internally to allow sharing of the select lines between multiple interface ports. Software-selectable echoed clock and loop-back modes help eliminate the need for external glue logic between the serial controller and line transceiver. Applications include data networking, CSU and DSU, and data routers.

• NET1 and NET2 compliant
• Software-selectable cable termination using the LTC1344
• 4-driver/4-receiver configuration provides a complete 2-chip DTE or DCE Port
• Operates from single 5V supply
• Internal echoed clock and loop-back logic
• Supply rise time is 2ms typ (no-cable mode or power-up to turn on)
• Output to output skew is 3ns typ (TA = 25°C, VCC = 5V)
• Input impedance is 32Kohm typ (-10V ≤ VA, B ≤ 10V)
• Output voltage is ±4.0V min (open circuit, RL = 3.9K)
• 44-lead plastic SSOP package, operating temperature range from -40°C to 85°C