STMICROELECTRONICS ST3232CDR RS232 Transceiver IC, 2 Drivers, SOIC-16
Low-power ST3232CDR RS232 transceiver IC for 3-5.5V systems. 2 drivers, 2 receivers, 400kbps data rate. Ideal for portable devices.
The STMICROELECTRONICS ST3232CDR is a 3V to 5.5V powered RS-232 driver and receiver, designed to meet EIA/TIA-232 and V.28/V.24 communication standards. Its proprietary low-dropout transmitter output stage delivers genuine RS-232 performance across the entire supply voltage range, making it exceptionally versatile for modern low-voltage systems.
This transceiver stands out for its low power consumption and high data-rate capabilities, requiring only four small 0.1µF external capacitors to operate from a 3V supply. It is guaranteed to maintain proper RS-232 output levels at data rates up to 250kbps, ensuring reliable and robust serial communication. The device is housed in a compact TSSOP16/SOIC-16 package and is specified for operation across a 0°C to 70°C industrial temperature range.
Key Specifications and Performance
- Supply Voltage: 3V to 5.5V.
- Power Consumption: Typical VCC supply current of just 0.3mA under no-load conditions.
- High-Speed Data: Supports a minimum data transfer rate of 300kbps, with a maximum capability of 400kbps.
- Driver/Receiver Configuration: Features 2 transmitters and 2 receivers.
- Robust Design: Offers a high output short-circuit current tolerance of ±60mA maximum.
- Fast Switching: Provides a rapid transition slew rate of 6V/µs minimum and a low propagation delay of 0.2µs typical.
Typical Applications
Its efficient power profile and small footprint make the ST3232CDR an ideal choice for a wide array of portable and power-sensitive electronics. It is perfectly suited for integration into notebooks, subnotebooks, palmtop and handheld computers, battery-powered equipment, printers, and various peripheral devices.
- Notebook and subnotebook computers
- Palmtop and handheld computers
- Battery-powered equipment
- Hand-held electronic devices
- IC Type: RS232 Transceiver
- No. of Drivers (Transmitters): 2
- No. of Receivers: 2
- Supply Voltage Range: 3V to 5.5V
- Maximum Data Rate: 400kbps
- Guaranteed Data Rate: 250kbps
- IC Package: SOIC (TSSOP16)
- No. of Pins: 16
- Operating Temperature Range: 0°C to 70°C
- Typical Supply Current (No Load): 0.3mA
- Minimum Data Transfer Rate: 300kbps
- Output Short Circuit Current: ±60mA max
- Propagation Delay: 0.2µs typ
- Transition Slew Rate: 6V/µs min
- External Components Required: Four 0.1µF capacitors
- Transmitter Output Resistance: 300 ohm min
- of Receivers: 2Receivers
- of Transmitters: 2
- Data Rate Max: 400Kbps
- Supply Voltage Min: 3V
- Supply Voltage Max: 5.5V
- IC Case / Package: SOIC
- of Pins: 16Pins
- Operating Temperature Min: 0°C
- Operating Temperature Max: 70°C
- MSL: MSL 3 - 168 hours
- SVHC: No SVHC (25-Jun-2025)
Documents
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