The GD65232 and GD75232 combine three drivers and five receivers from the Texas Instruments trade-standard SN75188 and SN75189 bipolar quadruple drivers and receivers, respectively. The pinout matches the flow-through design of the SN75C185 to decrease the part count, reduce the board space required, and allow easy interconnection of the UART and serial-port connector of an IBM™ PC/AT and compatibles. The bipolar circuits and processing of the GD65232 and GD75232 provide a rugged, low-cost solution for this function at the expense of quiescent power and external passive components relative to the SN75C185.
The GD65232 and GD75232 comply with the requirements of the TIA/EIA-232-F and ITU (formerly CCITT) V.28 standards. These standards are for data interchange between a host computer and a peripheral at signaling rates up to 20kbits. The switching speeds of these devices are fast enough to support rates up to 120kbits with lower capacitive loads (shorter cables). Interoperability at the higher signaling rates cannot be expected unless the designer has design control of the cable and the interface circuits at both ends. For interoperability at signaling rates up to 120kbits, use of TIA/EIA-423-B (ITU V.10) and TIA/EIA-422-B (ITU V.11) standards is recommended.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | GD65232, GD75232 Multiple RS-232 Drivers and Receivers datasheet (Rev. L) | PDF | HTML | Aug 9, 2024 |
| Technical article | Active RS-232 power consumption: Why isn’t it in the data sheet? | PDF | HTML | Aug 3, 2015 | |
| Application note | Understanding Power Requirements in RS-232 Applications (Rev. B) | Apr 26, 2013 | ||
| Application note | AN-438 Low Power RS-232C Driver and Receiver in CMOS (Rev. B) | Apr 26, 2013 | ||
| Application note | Removing Ground Noise in Data Transmission Systems | Oct 5, 2007 | ||
| Application note | Interface Circuits for TIA/EIA-232-F (Rev. A) | Sep 19, 2002 | ||
| Application note | Low-Voltage, Single-Supply 232-Standard Interface Solutions (Rev. A) | Sep 19, 2000 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| PDIP (N) | 20 | Ultra Librarian |
| SOIC (DW) | 20 | Ultra Librarian |
| SSOP (DB) | 20 | Ultra Librarian |
| TSSOP (PW) | 20 | Ultra Librarian |
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