Texas Instruments SN75189A Line Receivers
Texas Instruments SN75189A Line Receivers are monolithic low-power Schottky quadruple line receivers. These are designed to satisfy the requirements of the standard interface between data terminal equipment and data communication equipment as defined by TIA/EIA-232-F. A separate response-control (CONT) terminal is provided for each receiver. A resistor or a resistor and bias-voltage source can be connected between this terminal and the ground to shift the input threshold levels. An external capacitor can be connected between this terminal and the ground to provide input noise filtering.
Features
- 3k to 7k Input resistance
- ±30V Input signal range
- Operate from a single 5V supply
- Built-in input Hysteresis (double thresholds)
- Response control that provides
- Input threshold shifting
- Input noise filtering
- Meet or exceed the requirements of TIA/EIA-232-F and ITU recommendation V.28
- Fully interchangeable with Motorola™ MC1489 and MC1489A
Logic Diagram
Opublikowano: 2018-10-30
| Zaktualizowano: 2024-03-26