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SP3232EEY-L/TR

3-5.5V RS-232 transceiver, 2TX/2RX, 250kbps, ±15kV ESD, 16-TSSOP

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Manufacturer Part：

SP3232EEY-L/TR

Package：

16-TSSOP (5.0 x 4.4 x 1.0 mm)

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Description

Product Overview

The SP3232EEY-L/TR from MaxLinear is a 3.0V to 5.5V RS-232 transceiver with 250kbps data rate and +/-15kV ESD protection in a 16-TSSOP package. Pin-compatible with MAX3232, it provides 2 drivers and 2 receivers with only 4 external capacitors.

Key Specifications

Protocol RS-232
Drivers / Receivers 2 / 2
Data Rate 250kbps
Supply Voltage 3.0V ~ 5.5V
ESD Protection ±15kV (HBM)
External Capacitors 4 x 0.1uF
Package 16-TSSOP
Operating Temperature -40°C to +85°C

Features

  • 3.0V to 5.5V single supply operation
  • 2 drivers + 2 receivers
  • ±15kV ESD protection on RS-232 pins
  • Only 4 external 0.1uF capacitors
  • Pin-compatible with MAX3232
  • Auto-powerdown with 1uA standby current

Applications

  • Embedded system serial port interface
  • Industrial equipment RS-232 communication
  • Point-of-sale terminal serial ports
  • Debug console interface
  • Medical device serial programming

The SP3232EEY-L/TR from MaxLinear is a 3.0V to 5.5V RS-232 transceiver providing 2 drivers and 2 receivers in a compact 16-pin TSSOP package. Pin-compatible with the industry-standard MAX3232, it offers a cost-effective alternative. The internal charge pump generates +/-5.5V RS-232 levels from a single supply using only 4 external 0.1uF capacitors. ±15kV HBM ESD protection on RS-232 pins provides robust protection. Auto-powerdown reduces supply current to 1uA when no valid RS-232 signal is detected.

The SP3232E uses a dual charge pump to generate positive and negative voltage rails from a single 3.0V to 5.5V supply. The first stage doubles VCC to approximately +5.5V, and the second inverts this to approximately -5.5V. These rails power the driver output stages which swing between +5.5V and -5.5V for RS-232 compliance. The receivers accept RS-232 input levels and convert to TTL/CMOS logic levels. Auto-powerdown monitors receiver inputs and enters low-power mode when no valid signal is detected.

Pin Name Type Function
1 C1+ Cap Charge pump capacitor 1 positive
2 V+ Power +5.5V generated rail
3 C1- Cap Charge pump capacitor 1 negative
4 C2+ Cap Charge pump capacitor 2 positive
5 C2- Cap Charge pump capacitor 2 negative
6 V- Power -5.5V generated rail
7 T2OUT Output Driver 2 RS-232 output
8 R2IN Input Receiver 2 RS-232 input
9 R2OUT Output Receiver 2 TTL output
10 T2IN Input Driver 2 TTL input
11 T1IN Input Driver 1 TTL input
12 R1OUT Output Receiver 1 TTL output
13 R1IN Input Receiver 1 RS-232 input
14 T1OUT Output Driver 1 RS-232 output
15 GND Power Ground
16 VCC Power Supply voltage (3.0-5.5V)
  • Embedded system UART-to-RS-232 debug console
  • Industrial equipment serial communication port
  • POS terminal serial printer and scanner interface
  • Medical device programming and data download
  • Networking equipment management serial port
Manufacturer Part Number Package Notes
ADI (Maxim) MAX3232ESE+T 16-SOIC Pin-compatible in SOIC package
TI MAX3232CDR 16-SOIC Pin-compatible, equivalent
ST ST3232EBDR 16-SOIC 3-5.5V RS-232 transceiver
MaxLinear SP3232ECA-L/TR 16-SOIC Same function, SOIC package
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Quality Assurance

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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