MAX3232EIDWR
Multichannel RS-232 Line Driver and ReceiverThe MAX3232EIDWR is a multichannel rs-232 line driver and receiver from Texas Instruments. View the full MAX3232EIDWR datasheet below including key specifications, electrical characteristics, absolute maximum ratings.
MAX3232EIDWR shares its datasheet with MAX3232E, whose page lists every part number it covers.
Official MAX3232EIDWR datasheet (PDF) — the source this page was extracted from.
Manufacturer
Texas InstrumentsCategory
Integrated CircuitsMAX3232EIDWR Key Specifications
| Parameter | Value |
|---|---|
| Data Rate | 250kbps |
| Duplex | Full |
| Mounting Type | Surface Mount |
| Number of Drivers/Receivers | 2/2 |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) |
| Protocol | RS232 |
| Receiver Hysteresis | 300 mV |
| Supplier Device Package | 16-TSSOP |
| Type | Transceiver |
| Supply Voltage | 3V ~ 5.5V |
MAX3232EIDWR Overview
Part: MAX3232E — Texas Instruments
Type: Multichannel RS-232 Line Driver and Receiver
Description: The MAX3232E is a 3-V to 5.5-V multichannel RS-232 line driver and receiver with two drivers, two receivers, and a dual charge-pump circuit, providing ±15-kV IEC ESD protection and operating up to 250 kbit/s.
Operating Conditions:
- Supply voltage: 3 V to 5.5 V
- Operating temperature: -40 to 85 °C
- Max data rate: 250 kbit/s
Absolute Maximum Ratings:
- Max supply voltage: 6 V
- Max junction temperature: 150 °C
- Max storage temperature: -65 to 150 °C
Key Specs:
- Supply current (ICC): 0.3 mA (typ) at no load, VCC = 3.3 V or 5 V
- Driver high-level output voltage (VOH): 5 V (min) at RL = 3 kΩ to GND, DIN = GND
- Driver low-level output voltage (VOL): -5 V (min) at RL = 3 kΩ to GND, DIN = VCC
- Receiver input resistance (ri): 3 kΩ (min) to 7 kΩ (max) at VI = ±3 V to ±25 V
- Receiver input hysteresis (Vhys): 0.3 V (typ)
- Maximum data rate: 250 kbit/s (typ)
- Driver slew rate (SR(tr)): 6 V/μs (min) to 30 V/μs (max) at RL = 3 kΩ to 7 kΩ, CL = 150 pF to 1000 pF, VCC = 3.3 V
- External capacitors: 4 × 0.1 μF
Features:
- ESD protection for RS-232 bus pins: ±15 kV (HBM), ±8 kV (IEC61000-4-2, Contact discharge), ±15 kV (IEC61000-4-2, Air-gap discharge)
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards
- Operates with 3-V to 5.5-V VCC supply
- Two drivers and two receivers
- Low supply current: 300 μA (typical)
- Accepts 5-V logic input with 3.3-V supply
Applications:
- Industrial PCs
- Wired networking
- Data center and enterprise computing
- Battery-powered systems
- Notebooks
- Palmtop PCs
- Hand-held equipment
Package:
- SOIC (D) (16)
- SSOP (DB) (16)
- SOIC (DW) (16)
- TSSOP (PW) (16)
MAX3232EIDWR Features
- ESD protection for RS-232 bus pins
- -±15 kV (HBM)
- -±8 kV (IEC61000-4-2, Contact discharge)
- -±15 kV (IEC61000-4-2, Air-gap discharge)
- Meets or exceeds the requirements of TIA/ EIA-232-F and ITU V.28 standards
- Operates with 3-V to 5.5-V VCC supply
- Operates up to 250 kbit/s
- Two drivers and two receivers
- Low supply current: 300 μA (typical)
- External capacitors: 4 × 0.1 μF
- Accepts 5-V logic input with 3.3-V supply
- Pin compatible to alternative high-speed devices (1 Mbit/s)
- -SN65C3232E (-40°C to +85°C)
- -SN75C3232E (0°C to 70°C)
MAX3232EIDWR Applications
MAX3232EIDWR Pin Configuration
Figure 5-1. D, DW, DB and PW Package, 16-Pin SOIC, SSOP and TSSOP, Top View
Table 5-1. Pin Functions
| PIN | PIN | I/O | DESCRIPTION |
|---|---|---|---|
| NAME | NO. | I/O | DESCRIPTION |
| C1+ | 1 | - | Positive lead of C1 capacitor |
| V+ | 2 | O | Positive charge pump output for storage capacitor only |
| C1- | 3 | - | Negative lead of C1 capacitor |
| C2+ | 4 | - | Positive lead of C2 capacitor |
| C2- | 5 | - | Negative lead of C2 capacitor |
| V- | 6 | O | Negative charge pump output for storage capacitor only |
| DOUT2 | 7 | O | RS232 line data output (to remote RS232 system) |
| RIN2 | 8 | I | RS232 line data input (from remote RS232 system) |
| ROUT2 | 9 | O | Logic data output (to UART) |
| DIN2 | 10 | I | Logic data input (from UART) |
| DIN1 | 11 | I | Logic data input (from UART) |
| ROUT1 | 12 | O | Logic data output (to UART) |
| RIN1 | 13 | I | RS232 line data input (from remote RS232 system) |
| DOUT1 | 14 | O | RS232 line data output (to remote RS232 system) |
| GND | 15 | - | Ground |
| V CC | 16 | - | Supply Voltage, Connect to external 3-V to 5.5-V power supply |
MAX3232EIDWR Electrical Characteristics
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Typical Operating Circuit and Capacitor Values).
| PARAMETER | PARAMETER | TEST CONDITIONS | MIN TYP (2) | MAX | UNIT |
|---|---|---|---|---|---|
| I CC | Supply current | No load, V CC = 3.3 V or 5 V | 0.3 | 1 | mA |
MAX3232EIDWR Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
| MIN | MAX | UNIT | |||
|---|---|---|---|---|---|
| V CC | Supply voltage (2) | Supply voltage (2) | -0.3 | 6 | V |
| V+ | Positive output supply voltage (2) | Positive output supply voltage (2) | -0.3 | 7 | V |
| V- | Negative output supply voltage (2) | Negative output supply voltage (2) | 0.3 | -7 | V |
| V+ - V- | Supply voltage difference (2) | Supply voltage difference (2) | 13 | V | |
| V I | Drivers | -0.3 | 6 | V | |
| Input | Receivers | -25 | 25 | V | |
| V O | Drivers | -13.2 | 13.2 | V | |
| Output voltage | Receivers | -0.3 | V CC + 0.3 | V | |
| T J | Operating virtual junction temperature | Operating virtual junction temperature | 150 | °C | |
| T stg | Storage temperature | Storage temperature | -65 | 150 | °C |
MAX3232EIDWR Recommended Operating Conditions
See Typical Operating Circuit and Capacitor Values.
| MIN | NOM | MAX | UNIT | |||
|---|---|---|---|---|---|---|
| V CC = 3.3 V | 3 | 3.3 | 3.6 | V | ||
| Supply voltage | Supply voltage | V CC = 5 V | 4.5 | 5 | 5.5 | V |
| voltage | DIN | V CC = 3.3 V | 2 | 5.5 | V | |
| V IH Driver high-level input | DIN | V CC = 5 V | 2.4 | 5.5 | V | |
| V IL Driver low-level input voltage | DIN | 0 | 0.8 | V | ||
| V I Receiver input | RIN | -25 | 25 | V |
MAX3232EIDWR Thermal Information
| MAX3232E | MAX3232E | MAX3232E | MAX3232E | ||
|---|---|---|---|---|---|
| THERMAL METRIC (1) | PW (TSSOP) | D (SOIC) | DW (SOIC) | DB (SSOP) | |
| 16 PINS | 16 PINS | 16 PINS | 16 PINS | ||
| R θJA | Junction-to-ambient thermal resistance | 108.2 | 85.9 | 72.3 | 103.1 |
| R θJCtop | Junction-to-case (top) thermal resistance | 39.0 | 43.1 | 33.5 | 49.2 |
| R θJB | Junction-to-board thermal resistance | 54.4 | 44.5 | 37.1 | 54.8 |
| ψ JT | Junction-to-top characterization parameter | 3.3 | 10.1 | 7.5 | 12 |
| ψ JB | Junction-to-board characterization parameter | 53.8 | 44.1 | 37.1 | 54.1 |
| R θJCbot | Junction-to-case (bottom) thermal resistance | N/A | N/A | N/A | N/A |
MAX3232EIDWR Typical Application
For proper operation, add capacitors as shown in Table 9-1.
Other Integrated Circuits
- STM32F103C8T6 – STMicroelectronics, Microcontroller
- STM32F405RGT6 – STMicroelectronics, ARM Cortex-M4 MCU
- SN74AVC4T245PWR – Texas Instruments, Dual-Supply Bus Transceiver Level Translator
- STM32F446RCT6 – STMicroelectronics, ARM Cortex-M4 MCU
- STM32G070RBT6 – STMicroelectronics, Arm Cortex-M0+ 32-bit MCU
- ADS131M08IPBSR – Texas Instruments, Delta-Sigma ADC
- ISO1540DR – Texas Instruments, Bidirectional I²C Isolator
- ISO7740DBQR – Texas Instruments, Digital Isolator
All Integrated Circuits datasheetsAll Texas Instruments datasheets (2,442)
Ask your AI agent about the MAX3232EIDWR
Connect SheetsData to Claude, Cursor, Codex or any MCP client and your agent reads this datasheet for you: pinout, limits, register maps and design checks, with the numbers taken from the PDF.
claude mcp add --transport http sheetsdata https://mcp.sheetsdata.com/mcp
Then ask: "Can the MAX3232EIDWR run from my 12 V rail? Check it against the datasheet limits."
Create a free account $2 of usage every month, no card needed.