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DSP56857BU120规格书详情
56857 General Description
• 120 MIPS at 120MHz
• 40K x 16-bit Program SRAM
• 24K x 16-bit Data SRAM
• 1K x 16-bit Boot ROM
• Six (6) independent channels of DMA
• Two (2) Enhanced Synchronous Serial Interfaces
(ESSI)
• Two (2) Serial Communication Interfaces (SCI)
• Serial Port Interface (SPI)
• Four (4) dedicated GPIO
• 8-bit Parallel Host Interface
• General Purpose 16-bit Quad Timer
• JTAG/Enhanced On-Chip Emulation (OnCE™) for
unobtrusive, real-time debugging
• Computer Operating Properly (COP)/Watchdog Timer
• Time-of-Day (TOD)
• 100 LQFP package
• Up to 47 GPIO
1.1 56857 Features
1.1.1 Digital Signal Processing Core
• Efficient 16-bit engine with dual Harvard architecture
• 120 Million Instructions Per Second (MIPS) at 120MHz core frequency
• Single-cycle 16 × 16-bit parallel Multiplier-Accumulator (MAC)
• Four (4) 36-bit accumulators including extension bits
• 16-bit bidirectional shifter
• Parallel instruction set with unique DSP addressing modes
• Hardware DO and REP loops
• Three (3) internal address buses
• Four (4) internal data buses
• Instruction set supports both DSP and controller functions
• Four (4) hardware interrupt levels
• Five (5) software interrupt levels
• Controller-style addressing modes and instructions for compact code
• Efficient C Compiler and local variable support
• Software subroutine and interrupt stack with depth limited only by memory
• JTAG/Enhanced OnCE debug programming interface
1.1.2 Memory
• Harvard architecture permits up to three (3) simultaneous accesses to program and data memory
• On-Chip Memory
— 40K × 16-bit Program RAM
— 24K × 16-bit Data RAM
— 1K × 16-bit Boot ROM
— Chip Select Logic used as dedicated GPIO
1.1.3 Peripheral Circuits for 56857
• General Purpose 16-bit Quad Timer*
• Two Serial Communication Interfaces (SCI)*
• Serial Peripheral Interface (SPI) Port*
• Two (2) Enhanced Synchronous Serial Interface (ESSI) modules*
• Computer Operating Properly (COP)/Watchdog Timer
• JTAG/Enhanced On-Chip Emulation (OnCE) for unobtrusive, real-time debugging
• Six (6) independent channels of DMA
• 8-bit Parallel Host Interface*
• Time of Day
• Up to 47 GPIO
* Each peripheral I/O can be used alternately as a General Purpose I/O if not needed
1.1.4 Energy Information
• Fabricated in high-density CMOS with 3.3V, TTL-compatible digital inputs
• Wait and Stop modes available
产品属性
- 型号:
DSP56857BU120
- 功能描述:
数字信号处理器和控制器 - DSP, DSC 120Mhz/120MIPS
- RoHS:
否
- 制造商:
Microchip Technology
- 核心:
dsPIC
- 数据总线宽度:
16 bit
- 程序存储器大小:
16 KB 数据 RAM
- 大小:
2 KB
- 最大时钟频率:
40 MHz
- 可编程输入/输出端数量:
35
- 定时器数量:
3
- 设备每秒兆指令数:
50 MIPs
- 工作电源电压:
3.3 V
- 最大工作温度:
+ 85 C
- 封装/箱体:
TQFP-44
- 安装风格:
SMD/SMT
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
FREESCALE |
23+ |
QFP |
96880 |
只做原装,欢迎来电资询 |
询价 | ||
Freescale |
2023+ |
100-LQFP |
50000 |
原装现货 |
询价 | ||
NXP |
21+ |
100LQFP |
13880 |
公司只售原装,支持实单 |
询价 | ||
FREESCALE |
23+ |
100-LQFP |
65480 |
询价 | |||
FREESCAL |
23+ |
BGAQFP |
8659 |
原装公司现货!原装正品价格优势. |
询价 | ||
FRS |
90 |
询价 | |||||
MOTOROLA |
03+ |
38 |
询价 | ||||
FREESCALE |
21+ |
QFP |
6880 |
只做原装 |
询价 | ||
NXP |
589220 |
16余年资质 绝对原盒原盘 更多数量 |
询价 | ||||
FREESCALE |
23+ |
QFP |
98900 |
原厂原装正品现货!! |
询价 |