Tsc With Keypad Scanner And Gpio Expander

The AK4184 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 AK4184 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 AK4184 supports SPI Interface for Communication to a host controller. The AK4184 is available in a 41-pin BGA package and it operates over a temperature range of -40C to +85C. The AK4184 is suitable for Cellular Phone, DSC, DVC, Smart Phone and MP3 player application systems. By AKM Semiconductor, Inc.
AK4184 's PackagesAK4184 's pdf datasheet

AK4184 Pinout, Pinouts
AK4184 pinout,Pin out
This is one package pinout of AK4184,If you need more pinouts please download AK4184's pdf datasheet.

AK4184 Application circuits
AK4184 circuits
This is one application circuit of AK4184,If you need more circuits,please download AK4184's pdf datasheet.

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AK4184 Application Notes AK4184 RoHS AK4184 Circuits AK4184 footprint
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