These devices are silicon gate CMOS ICs that combine both the transmitter and receiver to fulfill the electrical specifications of EIA Standard 232âE and CCITT V.28. The drivers feature true TTL input compatibility, slew rate limiting outputs, 300 ⦠powerâoff source impedance, and output typically switching to within 25% of the supply rails. The receivers can handle up to ± 25 V while presenting 3 to 7 k⦠impedance. Hysteresis in the receivers aid in the reception of noisy signals. By combining both drivers and receivers in a single CMOS chip, these devices provide efficient, lowâpower solutions for both EIAâ232âE and V.28 applications.
These devices offer the following performance features:
⢠Operating Temperature Range TA = â40° to +85°C
Drivers
⢠± 5 to ± 12 V Supply Range
⢠300 ⦠PowerâOff Source Impedance
⢠Output Current Limiting
⢠TTL and CMOS Compatible Inputs
⢠Driver Slew Rate Range Limited to 30 V/µs Maximum
Receivers
⢠± 25 V Input Range
⢠3 to 7 k⦠Input Impedance
⢠0.8 V of Hysteresis for Enhanced Noise Immunity
⢠TTL and CMOS Compatible Outputs
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