Texas Instruments

LM8500IMT9B  

Touch Screen Controllers

LM8500IMT9B Description

The LM8500IMT9B is a 10-bit touchscreen controller designed by Texas Instruments, specifically tailored for applications requiring precise and reliable touch input. This IC is housed in a 48-pin TSSOP package and is part of the obsolete but highly regarded LM8500 series. It features a 4-wire resistive touchscreen interface, making it suitable for a wide range of display applications. The LM8500IMT9B operates within a supply voltage range of 2.7V to 5.5V and draws a supply current of 11.5 mA, ensuring efficient power usage. It is designed for surface mount applications and is rated for an operating temperature range of 0°C to 70°C. The product is classified under HTSUS code 8542.31.0001 and has a moisture sensitivity level (MSL) of 2, with a 1-year shelf life. It is REACH unaffected and falls under the ECCN classification of EAR99.

LM8500IMT9B Features

The LM8500IMT9B boasts several key features that set it apart from other touchscreen controllers in the market:

• 10-bit Resolution: Provides high-precision touch detection, ensuring accurate user input.
• 4-Wire Resistive Touchscreen: Ideal for applications requiring robust and reliable touch interfaces.
• UART Interface: Facilitates easy communication with microcontrollers and other system components.
• Wide Operating Voltage Range: 2.7V to 5.5V ensures compatibility with various power supply configurations.
• Low Supply Current: 11.5 mA ensures minimal power consumption, making it suitable for battery-operated devices.
• Surface Mount Package: The 48-pin TSSOP package is ideal for compact and high-density PCB designs.
• Extended Temperature Range: Suitable for industrial and automotive applications where operating temperatures can vary significantly.

LM8500IMT9B Applications

The LM8500IMT9B is well-suited for a variety of applications, including:

• Industrial Control Panels: Provides precise touch control for machinery and equipment.
• Automotive Infotainment Systems: Ensures reliable touch input for in-vehicle entertainment and control systems.
• Medical Equipment: Accurate touch detection for medical devices requiring high precision.
• Consumer Electronics: Ideal for tablets, e-readers, and other portable devices needing robust touch interfaces.
• Point-of-Sale Terminals: Efficient and reliable touch control for retail environments.

Conclusion of LM8500IMT9B

The LM8500IMT9B is a versatile and reliable touchscreen controller that offers high precision and efficient power usage. Despite being obsolete, its robust design and wide operating voltage range make it a valuable component for various applications. Its 10-bit resolution and 4-wire resistive touchscreen interface ensure accurate and reliable touch detection, making it ideal for industrial, automotive, medical, and consumer electronics applications. The LM8500IMT9B's UART interface and surface mount package further enhance its suitability for compact and high-density PCB designs. For applications requiring a proven and reliable touchscreen controller, the LM8500IMT9B remains a strong choice.

LM8500IMT9B Documents

Download datasheets and manufacturer documentation for LM8500IMT9B