| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 28-TSSOP (0.173", 4.40mm Width) |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | 0°C ~ 70°C |
| Type | Transceiver |
| Data Rate | 500kbps |
| Receiver Hysteresis | 500 mV |
| Supplier Device Package | 28-TSSOP |
| Voltage - Supply | 3V ~ 5.5V |
| Protocol | RS232 |
| Number of Drivers/Receivers | 3/5 |
| Duplex | Full |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | MAX3243 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
MAX3243ECPWR RS-232 transceiver 28-TSSOP
General DescriptionThe MAX3243ECPWR is a high-performance, multichannel RS-232 transceiver developed by Texas Instruments (formerly Maxim Integrated), designed for reliable serial communication in battery-powered and industrial systems. Integrating three line drivers, five line receivers, and a dual charge-pump circuit, it complies with TIA/EIA-232-F standards, supporting data rates up to 250kbps (500kbps peak) over a wide supply voltage range of 3.0V to 5.5V. It features ±15kV IEC ESD protection (air-gap) and ±8kV contact discharge protection on all serial pins, safeguarding against electrostatic damage in harsh environments. The transceiver incorporates an AutoShutdown™ function that reduces quiescent current to 1µA when no valid signal is detected for 30µs, significantly extending battery life in idle states.
The MAX3243ECPWR is widely utilized in industrial control systems, PLCs, and factory automation equipment for RS-232 serial communication between controllers and peripherals. It serves as a key interface component in portable medical devices, handheld test equipment, and battery-powered instrumentation, leveraging low-power AutoShutdown to prolong battery life. It is applied in consumer electronics such as set-top boxes, POS terminals, and serial mice, providing reliable RS-232 connectivity with minimal external components. It is suitable for automotive infotainment, telematics, and body control modules, delivering robust ESD protection and wide-temperature operation for in-vehicle communication.
Alternative transceivers
● SP3243ECP (MaxLinear): 3.0V–5.5V RS-232 transceiver with 3/5 drivers/receivers, ±15kV ESD protection, and 1µA shutdown current, pin-compatible for direct replacement.
● ST3243ECPWR (STMicroelectronics): Multichannel RS-232 transceiver with 250kbps data rate, ±15kV ESD protection, and TSSOP-28 package, optimized for industrial and consumer applications.
● ADM3243ARUZ (Analog Devices): 3.3V RS-232 transceiver with 3/5 channels, ±15kV ESD protection, and auto-powerdown, ideal for low-power serial communication systems.
● SN75176B (Texas Instruments): RS-232 transceiver with 4 drivers/4 receivers, 120kbps data rate, and ±15kV ESD protection, cost-effective for general-purpose serial interfaces.