ICL3237EIA

Product Overview

Category: Integrated Circuit (IC)

Use: The ICL3237EIA is a high-performance, 3.3V powered RS-232 transceiver designed for use in applications requiring high-speed communication over long cable lengths. It is commonly used in industrial automation, telecommunications, and computer systems.

Characteristics: - Voltage Level: 3.3V - Communication Standard: RS-232 - High-Speed Data Rate: Up to 1Mbps - Cable Length Support: Up to 50 feet - Operating Temperature Range: -40°C to +85°C

Package: The ICL3237EIA is available in an industry-standard 28-pin SSOP (Shrink Small Outline Package) package, which provides excellent thermal performance and ease of integration into various electronic systems.

Essence: This IC serves as a bridge between the low-voltage logic signals of a microcontroller or other digital device and the higher voltage levels required for RS-232 communication. It ensures reliable data transmission over long distances by converting the logic-level signals into RS-232 compliant signals.

Packaging/Quantity: The ICL3237EIA is typically sold in reels containing 250 units per reel.

Specifications

• Supply Voltage: 3.0V to 5.5V
• Logic Input Voltage Range: 0V to VCC
• Maximum Data Rate: 1Mbps
• Number of Channels: 2 (Transmitter and Receiver)
• ESD Protection: ±15kV (Human Body Model)
• RoHS Compliant: Yes

Detailed Pin Configuration

The ICL3237EIA features a total of 28 pins, each serving a specific function. Here is the detailed pin configuration:

1. VCC - Power supply voltage input
2. GND - Ground reference
3. T1OUT - Transmitter 1 output
4. R1IN - Receiver 1 input
5. R1OUT - Receiver 1 output
6. T1IN - Transmitter 1 input
7. SHDN - Shutdown control input
8. V- - Negative power supply voltage input
9. T2OUT - Transmitter 2 output
10. R2IN - Receiver 2 input
11. R2OUT - Receiver 2 output
12. T2IN - Transmitter 2 input
13. C1+ - External capacitor connection for charge pump 1
14. C1- - External capacitor connection for charge pump 1
15. C2+ - External capacitor connection for charge pump 2
16. C2- - External capacitor connection for charge pump 2
17. V+ - Positive power supply voltage input
18. GND - Ground reference
19. NC - No connection
20. NC - No connection
21. NC - No connection
22. NC - No connection
23. NC - No connection
24. NC - No connection
25. NC - No connection
26. NC - No connection
27. NC - No connection
28. NC - No connection

Functional Features

The ICL3237EIA offers the following functional features:

1. RS-232 Level Conversion: It converts low-voltage logic signals into RS-232 compliant signals, enabling communication with RS-232 devices.
2. High-Speed Data Transmission: With a maximum data rate of 1Mbps, it supports high-speed communication requirements.
3. Wide Operating Voltage Range: The IC operates within a wide voltage range of 3.0V to 5.5V, making it compatible with various systems.
4. ESD Protection: It provides ±15kV ESD protection, safeguarding the IC from electrostatic discharge events.
5. Shutdown Control: The SHDN pin allows for easy power management by enabling or disabling the IC as required.

Advantages and Disadvantages

Advantages: - High-speed data transmission capability - Wide operating voltage range - ESD protection for enhanced reliability - Shutdown control for power management

Disadvantages: - Limited to RS-232 communication standard - Requires external capacitors for charge pump operation

Working Principles

The ICL3237EIA operates based on the principle of voltage level conversion. It receives low-voltage logic signals from a microcontroller or digital device and converts them into RS-232 compliant signals. This conversion is achieved using internal charge pumps that generate the higher voltage levels required for RS-232 communication. The converted signals are then transmitted through the transmitter outputs and received through the receiver inputs.

Detailed Application Field Plans

The ICL3237EIA finds applications in various fields, including:

1. Industrial Automation: It is used in industrial control systems, PLCs (Programmable Logic Controllers