AP3861：Touch Screen Controllers
| Part Number | Data Sheet | SPICE Model | VDD (V) | Max Channels(Driving x Sensing) | Target Panel Size (") | Max TouchPoints | ADC Resolution (bits) | Flash | Interface |
|---|---|---|---|---|---|---|---|---|---|
| AP3861 | AP386X.pdf | - | 2.8 to 3.6 | 35 (23 x 12) | 4 to 8 | 10 | 12 | 32KB | SPI I2C |
Description
The AP386X is a low-cost high-resolution single chip solution for APA (All point addressable) capacitive touch screen. It is an 8-bit single cycle 8051 microcontroller with ICP Interface. The chip includes 12-bit successive approximation analog-to-digital converters with an I2C interface and multiplexer-switcher circuits for flexible measurement of analog signal from APA panel. An accurate switched-capacitor integrator is built-in and it can auto calibrate the pixel parameters for a wide range of capacitance on the touch screen (1pF to 32pF). This touch screen controller (TSC) with CMOS integration circuit provides an ideal choice for APA touch panel. The AP386X is specified over the temperature range of -40°C to 85°C.
Application
- Mobile Phones
- Personal Digital Assistants
- Smart Hand-held or Gaming Devices
Features
- Mutual Capacitive Touch Sensing
- Single Power Supply: 2.8V to 3.6V Operation Voltage; LDO inside to Support 1.6V to 2.0V Operation Voltage
- Up to 17/23 Drive Lines and 10/12 Sense Lines
- Charge Pump Support up to 6V, Doubling SNR
- Internal Two-wire Serial Control Bus I2C
- Single-end Integrator with Programmable Gain Control
- Multiplexed Analog Digitization with 12-bit Resolution Scan SAR ADCs and Its Dedicated 2X to 8X Accumulator XSRAM Buffers
- Single Cycle 8051 CPU Core, Maximum Operating Clock up to 28MHz from IOSC (Zero Wait State) - 4 to 28MHz Internal Oscillator (IOSC) - 32k-byte Flash ROM - 6k-byte Internal SRAM - Two 16-bit Timers T0/T1 - Configurable I2C Slave Controller and SPI Slave - Controller Shared with the Same Ports
- With Asynchronous I2C Slave Address Detection Logic Design - 4 General Purpose GPIO Pins - One External Interrupt Pin
- ISP/IAP via I°C Port
- Operation Temperature Range: -40°C to 85°C
U-QFN6060-48
- AP386X.pdf AP3861
