SST89E54RD单片机解密

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　 SST89E54RD FEATURES:
　　8-bit 8051-Compatible Microcontroller (MCU) with Embedded SuperFlash Memory
　　– Fully Software Compatible
　　– Development Toolset Compatible
　　– Pin-For-Pin Package Compatible
　　SST89E5xRD2 Operation
　　– 0 to 40 MHz at 5V
　　SST89V5xRD2 Operation
　　– 0 to 33 MHz at 3V
　　1 KByte Internal RAM
　　Dual Block SuperFlash EEPROM
　　– 16/32 KByte primary block +8 KByte secondary block(128-Byte sector size for both blocks)
　　– Individual Block Security Lock with SoftLock
　　– Concurrent Operation during
　　In-Application Programming (IAP)
　　– Memory Overlay for Interrupt Support during IAP
　　Support External Address Range up to 64 KByte of Program and Data Memory
　　Three High-Current Drive Ports (16 mA each)
　　Three 16-bit Timers/Counters
　　Full-Duplex, Enhanced UART
　　– Framing Error Detection
　　– Automatic Address Recognition
　　Ten Interrupt Sources at 4 Priority Levels
　　– Four External Interrupt Inputs
　　Programmable Watchdog Timer (WDT)
　　Programmable Counter Array (PCA)
　　Four 8-bit I/O Ports (32 I/O Pins) and One 4-bit Port
　　Second DPTR register
　　Low EMI Mode (Inhibit ALE)
　　SPI Serial Interface
　　Standard 12 Clocks per cycle, the device has an option to double the speed to 6 clocks per cycle.
　　TTL- and CMOS-Compatible Logic Levels
　　Brown-out Detection
　　Low Power Modes
　　– Power-down Mode with External Interrupt Wake-up
　　– Idle Mode
　　Temperature Ranges:
　　– Commercial (0°C to +70°C)
　　– Industrial (-40°C to +85°C)
　　Packages Available
　　– 40-contact WQFN (Port 4 feature not available)
　　– 44-lead PLCC
　　– 40-pin PDIP (Port 4 feature not available)
　　– 44-lead TQFP
　　All non-Pb (lead-free) devices are RoHS compliant
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