GD75232

ACTIVE

5-V multichannel 120kbps RS-232 line driver/receiver with +/-7.5V output & +/-1.5-kV ESD protection

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Product details

Parameters

Drivers per package 3 Receivers per package 5 Logic voltage (Min) (V) 5 Data rate (Max) (kbps) 120 Main supply voltage (Nom) (V) 5 ESD HBM (kV) 1.5 Rating Catalog Operating temperature range (C) 0 to 70 Vout (Typ) (V) 7.5 open-in-new Find other RS-232 transceivers

Package | Pins | Size

PDIP (N) 20 229 mm² 24.33 x 9.4 SOIC (DW) 20 132 mm² 12.8 x 10.3 SSOP (DB) 20 38 mm² 5.3 x 7.2 TSSOP (PW) 20 42 mm² 6.5 x 6.4 open-in-new Find other RS-232 transceivers

Features

  • Single Chip With Easy Interface Between UART and
    Serial-Port Connector of IBM™ PC/AT and Compatibles
  • Meet or Exceed the Requirements of TIA/EIA-232-F and ITU v.28 Standards
  • Designed to Support Data Rates up to 120 kbit/s
  • Pinout Compatible With SN75C185 and SN75185

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Description

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 20 kbit/s. The switching speeds of these devices are fast enough to support rates up to 120 kbit/s 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 120 kbit/s, use of TIA/EIA-423-B (ITU V.10) and TIA/EIA-422-B (ITU V.11) standards is recommended.

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Technical documentation

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Type Title Date
* Data sheet GD65232, GD75232 datasheet (Rev. J) Nov. 09, 2004
Technical article Active RS-232 power consumption: Why isn’t it in the data sheet? Aug. 03, 2015
Application note AN-438 Low Power RS-232C Driver and Receiver in CMOS (Rev. B) Apr. 26, 2013
Application note Understanding Power Requirements in RS-232 Applications (Rev. B) Apr. 26, 2013
Application note Removing Ground Noise in Data Transmission Systems Oct. 05, 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

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CAD/CAE symbols

Package Pins Download
PDIP (N) 20 View options
SOIC (DW) 20 View options
SSOP (DB) 20 View options
TSSOP (PW) 20 View options

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