AT89C51SND2芯片破解

0 次 时间：2009-08-25 / 10:56:12 来源：夏生

AT89C51SND2 Features：

• 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 Control
using 31 Steps)
– Bass, Medium, and Treble Control (31 Steps)
– Bass Boost Sound Effect
– Ancillary Data Extraction
– CRC Error and MPEG Frame Synchronization Indicators
• 20-bit Stereo Audio DAC
– 93 dB SNR playback stereo channel
– 32 Ohm/ 20 mW stereo headset drivers
– Stereo Line Level Input, Differential Mono Auxiliary Input
• Programmable Audio Output for Interfacing with External Audio System
– PCM Format Compatible
– I2S Format Compatible
• Mono Audio Power Amplifier
– 440mW on 8 Ohms Load
• 8-bit MCU C51 Core Based (FMAX = 20 MHz)
• 2304 Bytes of Internal RAM
• 64K Bytes of Code Memory
– AT89C51SND2C: Flash (100K Erase/Write Cycles)
– AT83SND2C: ROM
• 4K Bytes of Boot Flash Memory
– ISP: Download from USB (standard) or UART (option)
• 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
• Up to 32 Bits of General-purpose I/Os
– 1 Interrupt Keyboard
– 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
– Power amplifier supply 3.2V to 5.5V
• Packages
– CTBGA100

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解密热线：130 6693 6900
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地址：广东省深圳市福田区华强北振兴路格林网苑1707室
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细介绍请参考：
ATMEL  AT89C51SND2技术手册：AT89C51SND2.PDF