General

• Integrated voice-band, audio-band and base-band analog front-end

• Integrated full-featured power management unit

MCU subsystem

• ARM7EJ-S TM 32-bit RISC processor

• Java hardware acceleration for fast Java-based games and applets

• High-performance multi-layer AHB bus

• Dedicated DMA bus with 16 DMA channels

• On-chip boot ROM for factory flash programming

• Watchdog timer for system crash recovery

• 3 sets of general-purpose timers

• Circuit switch data coprocessor

• Division coprocessor

Serial flash interfaces

• Supports various operating frequency combinations for serial flash

• Supports QPI and SPI serial flash

User interfaces

• 5-row x 5-column keypad controller with hardware scanner

• Supports multiple key presses for gaming

• Dual SIM/USIM controller with hardware T=0/T=1 protocol control

• Real-time clock(RTC) operating with a low-quiescent-current power supply

• General-purpose I/Os(GPIOs) available for auxiliary applications

• 2 sets of Pulse Width Modulation(PWM) output

• 24 external interrupt lines

• 1 external channel auxiliary 10-bit A/D converter

Security

• Supports security key and chip random ID

Connectivity

• 3 UARTs with hardware flow control and supports baud rate up to 921600bps

• FS/LS USB 1.1 device controller

• Multimedia card, secure digital Memoy Card, host controller with flexible I/O voltage power

• Supports 4-bit SDIO interface for SDIO peripherals as well as WIFI connectivity

• DAI/PCM and I2S interface for audio applications

• I2C master interface for peripheral management including image sensors

• SPI master/slave interface for peripheral management.

Specification:

Model Name: AI2502S05

Chipset: MT2502A

Core: ARM7 EJ-STM

Clock Speed: 260MHz

Flash: 16MB

RAM: 4MB