品牌索引
产品分类 > 小信号开关二极管> 瞬态电压抑制器TVS/ESD> 双极管二极管> 调谐二极管> 齐纳(稳压)二极管> 小信号肖特基二极管> 频带转换二极管> 中/高功率管> 射频PIN二极管> Sinterglass二极管> 整流器 > N沟道(N-Channel)> P沟道(P-Channel)> 双N沟道(Dual N-Channel)> 双P沟道(Dual P-Channel)> 双N和P沟道(Dual N and P-Channel)
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产品介绍 DS5250Features
♦ Feature-Rich, 8051-Compatible Microprocessor Accesses Up to 4MB Program and 4MB Data Memory (All Nonvolatile) In-System Programmable Through Serial PortIn-Application Programmable Through User Software Allows Self-Modification of Program/Data Memory Four 8-Bit Ports/One 6-Bit Port Three 16-Bit Timer/Counters 256 Bytes of Scratchpad RAM ♦ Advanced Features CRC-16/32 Generator 5KB Internal SRAM (Optional 1KB Stack) Single or 3DES Engine Partitionable Memory Segments Variable from 4KB to 256KB ♦ High-Speed Architecture Four Clocks-per-Machine Cycle DC-to-25MHz Operation Single-Cycle Instruction in 160ns Dual Data Pointers Can Increment or Decrement Independently Automatic Data Pointer (DPTR) Selection Available Programmable Speed MOVX Instructions 1KB On-Chip Instruction Cache ♦ High-Reliability Operation Power-Fail/Overvoltage Reset Early-Warning Power-Fail Interrupt Watchdog Timer ♦ Nonvolatile Functions On-Chip Real-Time Clock with Alarm Interrupt 2KB Battery-Backed Internal SRAM ♦ Interrupts 15 Interrupts with Seven External Sources ♦ Security Features Executes Single/3DES-Encrypted Programs to Prevent Observation Two Self-Destruct Inputs 4096-Bit Modulo-Arithmetic Accelerator (MAA) for Public/Private Key Operations Tamper Sensors Detect Thermal/Voltage/Probe Attacks Programmable Attack Countermeasures Secure-Loader Mode True Random-Number Generator (RNG) Unique ID Number in Every Device Separate Program/Data Cryptograph Program Memory Integrity Checking ♦ Evaluation Kit Available (DS5250-KIT) |
