IN145403 Datasheet, PDF (1/3 Pages) Integral Corp. – DRIVERS/RECEIVERS RS-232-E

IN145403 IN145404 IN145405 IN145408
DRIVERS/RECEIVERS RS-232-E
These devices are silicon gate CMOS ICs that combine both the transmitter and receiver to fulfill the
electrical specifications of EIA Standard 232-E and CCITT V.28. The drivers feature true TTL input
compatibility, slew rate limiting outputs, 300 a power-off source impedance, and output typically
switching to within 25% of the supply rails. The receivers can handle up to ± 25V while presenting 3 to
7 kn 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, low-power solutions for
both EIA-232-E and V.28 applications. These devices offer the following performance features:
DRIVERS
• ± 5 to ± 12 V Supply Range
• 300 Q Power-Off Source Impedance
• Output Current Limiting
• TTL and CMOS Compatible Inputs
• Driver Slew Rate Range Limited to 30 V/µs
RECEIVERS
• ± 25V Input Range
• 3 to 7 kn Input Impedance
• 0.8V of Hysteresis for Enhanced Noise Immunity
• TTL and CMOS Compatible Outputs
• Available Driver/Receiver Combinations
Maximum
Device
IN145403
IN145404
IN145405
IN145408
Drivers
3
4
5
5
Receivers
5
4
3
5
Figure
1
2
3
4
No. ot Pins
20
20
20
24
IN145403
3 DRIVERS/5 RECEIVERS
IN145404
4 DRIVERS/4 RECEIVERS
IN145405
5 DRIVERS/3 RECEIVERS
IN145408
5 DRIVERS/5 RECEIVERS
1