The SN75C189 and SN75C189A are low-power, bipolar, quadruple line receivers that are used to interface data terminal equipment (DTE) with data circuit-terminating equipment (DCE). These devices have been designed to conform to TIA/EIA-232-F. The SN75C189 has a 0.33-V typical hysteresis, compared with 0.97 V for the SN75C189A. Each receiver has provision for .
pical hysteresis, compared with 0.97 V for the SN75C189A. Each receiver has provision for adjustment of the overall input threshold levels. This is achieved by choosing external series resistors and voltages to provide bias levels for the response-control pins. The output is in the high logic state if the input is open circuit or shorted to ground. These devices have an on-chip filter that rejects input pulses of less than 1-µs duration. An external capacitor can be connected from the control pins to ground to provide further input noise filtering for each receiver. The SN75C189 and SN75C189A .
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | SN75C185 |
Texas Instruments |
LOW-POWER MULTIPLE DRIVERS/RECEIVERS | |
2 | SN75C188 |
Texas Instruments |
QUADRUPLE LOW-POWER LINE DRIVERS | |
3 | SN75C189A |
Texas Instruments |
QUADRUPLE LOW-POWER LINE RECEIVERS | |
4 | SN75C1154 |
Texas Instruments |
QUADRUPLE LOW-POWER DRIVERS/RECEIVERS | |
5 | SN75C1154N |
Texas Instruments |
QUADRUPLE LOW-POWER DRIVERS/RECEIVERS | |
6 | SN75C1167 |
Texas Instruments |
DUAL DIFFERENTIAL DRIVERS/RECEIVERS | |
7 | SN75C1168 |
Texas Instruments |
DUAL DIFFERENTIAL DRIVERS/RECEIVERS | |
8 | SN75C1406 |
Texas Instruments |
TRIPLE LOW-POWER DRIVERS/RECEIVERS | |
9 | SN75C198 |
Texas Instruments |
QUADRUPLE LOW-POWER LINE DRIVERS | |
10 | SN75C08 |
Texas Instruments |
SCSI INPUT/OUTPUT BUFFER | |
11 | SN75C091A |
Texas Instruments |
SCSI Bus Controller | |
12 | SN75C23243 |
Texas Instruments |
3-V TO 5.5-V DUAL RS-232 PORT |