MPEG I/II-Layer 3 Hardwired Decoder

Stand-alone MP3 Decoder

48, 44.1, 32, 24, 22.05, 16 kHz Sampling Frequency

Separated Digital Volume Control on Left and Right Channels (Software Controlusing 31 Steps)

Bass, Medium, and Treble Control (31 Steps)

Bass Boost Sound Effect

Ancillary Data Extraction

CRC Error and MPEG Frame Synchronization Indicators

Programmable Audio Output for Interfacing with Common Audio DAC

PCM Format Compatible

I2S 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)

AT83SND1C: ROM

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

USB Clock

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

Voice Recording Controlled by Software

Up to 44 Bits of General-purpose I/Os

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

SmartMedia Software Interface

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

Software Programmable MCU Clock

Idle Mode, Power-down Mode

Operating Conditions:

3V, +-10%, 25 mA Typical Operating at 25°C

Temperature Range: -40°C to +85°C