IC, RS-232 TRANSCEIVER, 5V, DIP-16 The MAX232 is a dual driver/receiver that includes a capacitive voltage generator to supply TIA/EIA-232-F voltage levels from a single 5-V supply.
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Sep 4, 2021
Byron Silas
Max232, The level shifter IC for microcontroller interfece.avi
IC, RS-232 TRANSCEIVER, 5V, DIP-16
The MAX232 is a dual driver/receiver that includes a capacitive voltage generator to supply TIA/EIA-232-F voltage levels from a single 5-V supply. This article mainly covers pinout, datasheet, applications, features, and more details about MAX232.
MAX232EIN
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.46227 | $2.46 |
| 10+ | $2.32289 | $23.23 |
| 100+ | $2.19141 | $219.14 |
| 500+ | $2.06737 | $1033.69 |
| 1000+ | $1.95035 | $1950.35 |
| Pin Number | Pin Name | Description |
| 1 | C1 + | Connects to the positive end of the First capacitor |
| 2 | V+ | Connects to one end of the capacitor & other end is grounded |
| 3 | C1 - | Connects to the negative end of First Capacitor |
| 4 | C2+ | Connects to the positive end of the second capacitor |
| 5 | C2- | Connects to the negative end of the second capacitor |
| 6 | V- | Connects to one end of the capacitor & other end is grounded |
| 7 | T2 OUT | Transmission pin of second converter module for RS232 cable |
| 8 | R2 IN | Reception pin of second converter module for RS232 cable |
| 9 | R2 OUT | Reception pin of second converter module for Microcontroller(Rx) |
| 10 | T2 IN | Transmission pin of second converter module for Microcontroller(Tx) |
| 11 | T1 IN | Transmission pin of first converter module for Microcontroller(Tx) |
| 12 | R1 OUT | Reception pin of first converter module for Microcontroller(Rx) |
| 13 | R1 IN | Reception pin of first converter module for RS232 cable |
| 14 | T1 OUT | Transmission pin of first converter module for RS232 cable |
| 15 | Ground | Connects to the ground of the circuit |
| 16 | Vcc | Connects to the supply voltage typically +5V |
Symbol
Symbol
Footprint
Footprint
3D Model
3D Model
The MAX232 is a dual driver/receiver that includes a capacitive voltage generator to supply TIA/EIA-232-F voltage levels from a single 5-V supply. Each receiver converts TIA/EIA-232-F inputs to 5-V TTL/CMOS levels. These receivers have a typical threshold of 1.3 V, a typical hysteresis of 0.5 V, and can accept ±30-V inputs.
Texas Instruments MAX232EIN technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments MAX232EIN.
Texas Instruments MAX232EIN technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments MAX232EIN.
| Product Attribute | Attribute Value | |
|---|---|---|
| Lifecycle Status | ACTIVE (Last Updated: 2 days ago) | |
| Factory Lead Time | 6 Weeks | |
| Mount | Through Hole | |
| Mounting Type | Through Hole | |
| Package / Case | 16-DIP (0.300, 7.62mm) | |
| Number of Pins | 16Pins | |
| Weight | 955.690774mg | |
| Number of I/Os | 8I/Os | |
| Operating Temperature | -40°C~85°C | |
| Packaging | Tube | |
| JESD-609 Code | e4 | |
| Pbfree Code | yes | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Number of Terminations | 16Terminations | |
| ECCN Code | EAR99 | |
| Type | Transceiver |
| Product Attribute | Attribute Value | |
|---|---|---|
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
| Voltage - Supply | 4.5V~5.5V | |
| Terminal Position | DUAL | |
| Number of Functions | 2Functions | |
| Supply Voltage | 5V | |
| Base Part Number | MAX232 | |
| Pin Count | 16 | |
| Operating Supply Voltage | 5V | |
| Power Supplies | 5V | |
| Interface | RS-232 | |
| Nominal Supply Current | 10mA | |
| Propagation Delay | 500 ns | |
| Logic Function | Receiver, Transceiver | |
| Data Rate | 250kbps | |
| Differential Output | NO | |
| Output Polarity | INVERTED | |
| Protocol | RS232 |
| Product Attribute | Attribute Value | |
|---|---|---|
| Input Characteristics | SCHMITT TRIGGER | |
| Number of Drivers/Receivers | 2/2Drivers/Receiver | |
| Receiver Number of Bits | 2Bits | |
| Duplex | Full | |
| Receiver Hysteresis | 500mV | |
| Number of Drivers | 2Drivers | |
| Number of Transceivers | 1Transceiver | |
| Simplex/Duplex | Full Duplex | |
| Supply Voltage1-Nom | 5V | |
| Height | 5.08mm | |
| Length | 19.3mm | |
| Width | 6.35mm | |
| Thickness | 3.9mm | |
| REACH SVHC | No SVHC | |
| Radiation Hardening | No | |
| RoHS Status | ROHS3 Compliant | |
| Lead Free | Lead Free |
Meets or Exceeds TIA/EIA-232-F and ITU Recommendation V.28
Operates From a Single 5-V Power Supply With 1.0-F Charge-Pump Capacitors
Operates Up To 120 kbit/s
Two Drivers and Two Receivers
±30-V Input Levels
Low Supply Current . . . 8 mA Typical
ESD Protection Exceeds JESD 22 − 2000-V Human-Body Model (A114-A)
Upgrade With Improved ESD (15-kV HBM) and 0.1-F Charge-Pump Capacitors is Available With the MAX202
Applications − TIA/EIA-232-F, Battery-Powered Systems, Terminals, Modems, and Computers
Battery Powered RS 232 Systems.
Interface Translation.
Low Power Modems.
RS 232 Networks (Multi-drop)
Portable Computing.
The MAX232 is a dual transmitter / dual receiver that typically is used to convert the RX, TX, CTS, RTS signals. The drivers provide TIA-232 voltage level outputs (about ±7.5 volts) from a single 5-volt supply by on-chip charge pumps and external capacitors.
Therefore, if we have to interface these microcontrollers with the Computer we need to convert the TTL/CMOS logic to RS232 logic. Hence if you are looking for an IC to perform this conversion and interface a Microcontroller with your computer then MAX232 IC is the right one for you
MAX232 IC can help you to convert two logic level conversions that is you can use two Microcontrollers, but to gets started we will use only one MCU and connect it to a computer, the complete circuit is to do the same is shown below. As you can see the pins (T2 out, R2 in, T2 in, R2 out) are left free since we are not using the second module.
The modern replacement for MAX232 IC is the MAX3232 both the IC's share the same pinout and package style hence it is a direct substitute. The major advancement made in this IC is that it can support both the 3.3V system and 5V systems while the predecessor MAX232 can support only the 5V systems.
Testing steps:
Ensure the tester is powered off.
Insert MAX232 chip to the ZIF socket.
Push SW1 to turn the power on.
Push the test button and check the green LED.
Test the serial data stream with the COM port tester. When we press keys (Green), it will echo back to the terminal in Yellow.
Push SW1 to turn the power off.
Take the chip out.
Texas Instruments (TI) is a global semiconductor firm originating in 1958 and nowadays it has over 30,000 employees who design, conduct, and sell analog and product-differentiating embedded processing components in 35 countries. Aimed at changing the world of tech, TI has put great effort into becoming the solution provider coupled with a vision.
Download datasheets and manufacturer documentation for Texas Instruments MAX232EIN.
Download datasheets and manufacturer documentation for MAX232EIN
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