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MAX232CPE+
+BOMIC TRANSCEIVER FULL 2/2 16PDIP
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ManufacturerAnalog Devices Inc./Maxim Integrated
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Mfr. Part #MAX232CPE+
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In Stock5436
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Specifications
| Attribute | Value |
| Part Status | Active |
| Base Product Number | MAX232 |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers / Receivers | 2/2 |
| Duplex | Full |
| Data Rate | 120Kbps |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Through Hole |
| Package / Case | 16-DIP (0.300", 7.62mm) |
| Supplier Device Package | 16-PDIP |
| Packaging | Tube |
| Receiver Hysteresis | 500 mV |
Overview
Description
Key features include:
1. Dual Transceiver: It contains two drivers and two receivers, facilitating bi-directional communication.
2. Voltage Conversion: Converts signals from RS-232 levels (around ±12V) to TTL/CMOS levels (0 to 5V), and vice versa.
3. Single Supply Voltage: Operates on a single 5V power supply, simplifying design requirements.
4. Built-in Charge Pump: Generates the necessary voltage levels for RS-232 communication without needing dual power supplies.
5. Applications: Used in computer serial ports, microcontroller communication, and embedded systems where RS-232 connectivity is required.
The MAX232CPE+ is valued for its reliability, ease of use, and role in bridging older serial communication standards with modern digital logic levels.
Equivalent
1. Texas Instruments: SN75C3232
2. STMicroelectronics: ST3232
3. NXP Semiconductors: SP3232E
4. Intersil: ICL3221
5. Analog Devices: ADM232A
These alternatives offer similar functionalities with slight variations in specifications and features. Always verify the full datasheets to ensure compatibility with your specific application requirements.
Features
1. Dual Drivers and Receivers: It has two drivers and two receivers to facilitate full-duplex communication.
2. Voltage Levels: Converts RS-232 voltage levels to TTL/CMOS levels and vice versa.
3. Single Supply Voltage: Operates from a single 5V power supply, simplifying power requirements.
4. Integrated Charge Pumps: Includes internal charge pumps that generate RS-232 voltage levels from the 5V supply, eliminating the need for dual power supplies.
5. High Data Rates: Supports data rates up to 120 kbps.
6. ESD Protection: Offers electrostatic discharge (ESD) protection for greater system reliability.
7. Low Power Consumption: Consumes minimal power, beneficial for battery-operated devices.
8. Package Type: Available in a 16-pin DIP package, making it suitable for through-hole applications.
These features make the MAX232CPE+ ideal for interfacing microcontrollers with RS-232 communication ports.
Pinout
1. Pin 1 (C1+): Positive terminal for the charge pump capacitor.
2. Pin 2 (V+): Positive voltage generated by the charge pump.
3. Pin 3 (C1-): Negative terminal for the charge pump capacitor.
4. Pin 4 (C2+): Positive terminal for the second charge pump capacitor.
5. Pin 5 (C2-): Negative terminal for the second charge pump capacitor.
6. Pin 6 (V-): Negative voltage generated by the charge pump.
7. Pin 7 (T2OUT): Transmitter output 2.
8. Pin 8 (R2IN): Receiver input 2.
9. Pin 9 (R2OUT): Receiver output 2.
10. Pin 10 (T2IN): Transmitter input 2.
11. Pin 11 (T1IN): Transmitter input 1.
12. Pin 12 (R1OUT): Receiver output 1.
13. Pin 13 (R1IN): Receiver input 1.
14. Pin 14 (T1OUT): Transmitter output 1.
15. Pin 15 (GND): Ground.
16. Pin 16 (VCC): Supply voltage.
The MAX232CPE+ uses a charge pump to generate the necessary voltage levels for RS-232 communication, allowing it to interface with microcontrollers or digital logic systems operating at a lower voltage.
Manufacturer
Analog Devices, Inc., the parent company, is a multinational semiconductor company specializing in data conversion and signal processing technology. They provide a wide range of products, including analog and digital signal processing ICs, power management technology, and radio frequency (RF) ICs, serving various industries such as automotive, communications, consumer electronics, and industrial applications. Their expertise lies in creating solutions that bridge the physical and digital worlds, enabling advancements in sensing, measuring, interpreting, and powering devices and systems.
Application
1. Microcontroller Interfaces: Facilitates communication between microcontrollers and RS-232 compatible devices like PCs.
2. Embedded Systems: Used in systems requiring reliable serial communication for data transmission.
3. Data Transfer: Suitable for transferring data between different systems or devices in industrial and consumer electronics.
4. Modems and Networking Equipment: Converts signals for modem interfaces and various networking equipment.
5. Instrumentation: Used in test and measurement equipment to ensure accurate data exchange.
6. POS Systems: In point-of-sale systems to interface peripherals such as printers and barcode scanners.
Its ease of use and reliability make it a staple in both hobbyist and professional electronic designs.
Package
Frequently Asked Questions
Q: What is the maximum data rate supported by the MAX232CPE+?
A: The MAX232CPE+ supports a data rate of up to 120Kbps, suitable for standard RS232 communication.
Q: Can this transceiver operate with a 3.3V supply voltage?
A: No, it requires a 4.5V to 5.5V supply. For 3.3V systems, consider a compatible RS232 transceiver variant.
Q: How many drivers and receivers does the MAX232CPE+ include?
A: It includes 2 drivers and 2 receivers, supporting full-duplex RS232 communication.
Q: What is the operating temperature range of this device?
A: It operates from 0°C to 70°C, making it suitable for commercial-grade applications.
Q: What is the typical receiver hysteresis value for this part?
A: The receiver hysteresis is 500 mV, ensuring noise immunity on the RS232 input lines.
Q: Is the MAX232CPE+ available in a through-hole package?
A: Yes, it comes in a 16-pin DIP (0.300", 7.62mm) through-hole package (16-PDIP) for easy prototyping.