• MPEG I/II-Layer 3 Hardwired Decoder

– Stand-alone MP3 Decoder

• Programmable Audio Output for Interfacing with Common Audio DAC

– PCM Format Compatible

• 8-bit MCU C51 Core Based (FMAX = 20 MHz)

• 2304 Bytes of Internal RAM

• 64K Bytes of Code Memory

– AT89C51SND1C: Flash (100K Erase/Write Cycles)

• 4K Bytes of Boot Flash Memory (AT89C51SND1C)

– ISP: Download from USB (standard) or UART (option)

• External Code Memory

– AT80C51SND1C: ROMless

• USB Rev 1.1 Controller

– Full Speed Data Transmission

• Built-in PLL

– MP3 Audio Clocks

• MultiMedia Card® Interface Compatibility

• Atmel DataFlash® SPI Interface Compatibility

• IDE/ATAPI Interface

• 2 Channels 10-bit ADC, 8 kHz (8-true bit)

– Battery Voltage Monitoring

• Up to 44 Bits of General-purpose I/Os

– 4-bit Interrupt Keyboard Port for a 4 x n Matrix

• 2 Standard 16-bit Timers/Counters

• Hardware Watchdog Timer

• Standard Full Duplex UART with Baud Rate Generator

• Two Wire Master and Slave Modes Controller

• SPI Master and Slave Modes Controller

• Power Management

– Power-on Reset

• Operating Conditions:

– 3V, ±10%, 25 mA Typical Operating at 25°C

– Temperature Range: -40°C to +85°C

• Packages

– TQFP80, BGA81, PLCC84 (Development Board)