以下是关于SST89E58RD2芯片的基本特性，仅供各位参考：

FEATURES:
? 8-bit 8051-Compatible Microcontroller (MCU)
with Embedded SuperFlash Memory
– Fully Software Compatible
– Development Toolset Compatible
– Pin-For-Pin Package Compatible
SST89E5xxRD2 Operation
– 0 to 40 MHz at 5V
SST89V5xxRD2 Operation
– 0 to 33 MHz at 3V
1 KByte Internal RAM
Dual Block SuperFlash EEPROM
– 8/16/32/64 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
– 44-lead PLCC
– 40-pin PDIP (Port 4 feature not available)