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參數(shù)資料
| 型號： | AT83SND1AXXX-ROTIL |
| 英文描述： | MICROCONTROLLER|8-BIT|8051 CPU|CMOS|QFP|80PIN|PLASTIC |
| 中文描述： | 單片機| 8位| 8051處理器|的CMOS | QFP封裝| 80腳|塑料 |
| 文件頁數(shù)： | 1/55頁 |
| 文件大小： | 932K |
| 代理商： | AT83SND1AXXX-ROTIL |
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Rev. 4106E–8051–03/02
1
Features
MPEGI/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
Programmable Audio Output for Interfacing With Common Audio DAC
–
PCM Format Compatible
–
I
2
S Format Compatible
8-bit MCU C51 Core Based (F
MAX
= 20 MHz)
2304 bytes of Internal RAM
64 Kbytes of Code Memory
–
Flash: AT89C51SND1A, ROM: AT83C51SND1A
4 Kbytes of Boot Flash Memory (AT89C51SND1A)
–
ISP: Download from USB or UART to any External Memory Cards
USB Rev 1.1 Controller
– “
Full Speed
”
Data Transmission
Built-in PLL
–
MP3 Audio Clocks
–
USB Clock
MultiMediaCard
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 for:
–
4-bit Interrupt Keyboard Port for a 4 x n Matrix
–
Smartmedia
Software Interface
Standard Two 16-bit Timers/Counters
Hardware Watchdog Timer
Standard Full Duplex UART with Baud Rate Generator
2-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
Packages
–
TQFP80, PLCC84 (Development Board)
–
Dice
Description
The AT8xC51SND1A is a fully integrated stand-alone hardwired MPEGI/II-Layer 3
decoder with a C51 microcontroller core handling data flow and MP3-player control.
The AT89C51SND1A includes 64 Kbytes of Flash memory and allows In-System Pro-
gramming through an embedded 4 Kbytes of Boot Flash Memory.
Single Chip
Microcontroller
with MP3
Decoder and
Man Machine
Interface
AT8xC51SND1A
Preliminary
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