TSC With Keypad Scanner And GPIO Expander

The AK4184A is a 12-bit A/D converter witch operates 125kHz (max) sampling rate with a 4-wire resistive Touch Screen controller (TSC), including low-on resistance switches, touch pressure measurement capability, a maximum 6 x 5 keypad scanner, eight GPIO ports, and a PWM generator for LED contrast control. The AK4184A operates down to a 2.5V supply voltage, and it tolerates digital I/O Interface voltage from 1.6V to AVDD in order to connect to low voltage controllers. The AK4184A supports SPI Interface for Communication to a host controller. The AK4184A is available in a 41-pin BGA package and it operates over a temperature range of -40C to +85C. The AK4184A is suitable for Cellular Phone, DSC, DVC, Smart Phone and MP3 player application systems. By AKM Semiconductor, Inc.
AK4184A 's PackagesAK4184A 's pdf datasheet

AK4184A Pinout, Pinouts
AK4184A pinout,Pin out
This is one package pinout of AK4184A,If you need more pinouts please download AK4184A's pdf datasheet.

AK4184A Application circuits
AK4184A circuits
This is one application circuit of AK4184A,If you need more circuits,please download AK4184A's pdf datasheet.

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