The i.MX233 applications processor extends Freescale's ARM9 portfolio and introduces several unique features such as power management, analog audio, 12-bit ADC, and a touch screen controller that allows customers to eliminate external components, reducing their overall system bill of materials cost. The i.MX233 integrates industry-leading power management technology to manage the power sequencing required by the processor itself and supplies power to other components in the system, such as external memories, from a single Li-Ion battery. Additionally, analog audio features such as the stereo ADC/DAC

and amplifiers, plus a mono speaker amplifier provide a complete solution in a single device for multimedia applications. Furthermore, many consumer applications require a rich graphical user interface which is supported by the LCD touch screen controller and basic hardware graphics acceleration with the pixel pipeline processor. 

Audio Codec

- Stereo headphone DAC with 99 dB SNR

- Stereo ADC with 85 dB SNR

- Stereo headphone amplifier with short-circuit protection and direct drive to eliminate bulky

capacitors

- Mono speaker amplifer (169-Pin BGA only) providing up to 2W ms output, running directly

from the battery.

- Amplifiers are designed for click pop free operation.

- Two stereo line inputs

- Microphone input

- SPDIF digital out ;

16-Channel Low-Resolution ADC

- 6 independent channels and 10 dedicated channels

- Resistive touchscreen controller

- Temperature sensor controller

- Absolute accuracy of 1 .3%

- Up to 0.5% with bandgap calibration

Security Features

- Read-only unique ID for digital rights management algorithms

- Secure boot using 128-bit AES hardware decryption

- SHA-1 hashing hardware

Portable Media Players

Portable Navigation Devices

Home Appliances

Graphical Remote Controls

Home Automation

eBooks

Digital Picture Frames

Audio peripherals and accessories

VoIP Handsets

Simple human-machine interface (HMI)

panels for industrial applications