Four Wire Resistive Touchscreen Controller With Brownout

The LM8300 LM8500 is a 4-wire resistive Touch Screen controller. The controller samples and drives the Touch Screen without the need of any external hardware. The built in 10-bit A/D provides a maximum of 500 coordinate pairs per second (cpps). The data sampled from the Touch Screen is sent out on the UART at a speed of 38400 bps.
The controller has a power-saving mode which causes the controller to self-power down when no touch is detected on the Touch Screen for a specified amount of time. In the self-power down mode, the current drawn is typically less than 2 ?A. The device resumes normal operation when a touch is detected on the Touch Screen or Communication is detected on the UART In addition to the self-power down mode, the controller CAN be disabled by pulling the SHUTDOWN pin low. The controller resumes normal operation when the SHUTDOWN pin is tristated or pulled high.
The controller has an internal non-volatile memory storage element to store configuration data such as calibration points or controller configurations.
Devices included in this datasheet:

By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM8500-REF-01 Texas Instruments LM8500 Touchscreen Controller Reference Design
LM8500IMT9B/NOPB Texas Instruments Four Wire Resistive Touchscreen Controller with Brownout 48-TSSOP 0 to 70
LM8500 's PackagesLM8500 's pdf datasheet
LM8500IMT9B TSSOP




LM8500 Pinout, Pinouts
LM8500 pinout,Pin out
This is one package pinout of LM8500,If you need more pinouts please download LM8500's pdf datasheet.

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