SST89E58RD2A Datasheet



The SST89E58RD2A is members of the FlashFlex family of 8-bit microcontroller products designed and manufactured with SST patented and proprietary SuperFlash CMOS semiconductor process technology. The split-gate cell design and thick-oxide tunneling injector offer significant cost and reliability benefits for SST customers. The devices use the 8051 instruction set and are pin-for-pin compatible with standard 8051 microcontroller devices. The devices come with 24/40 KByte of on-chip flash EEPROM program memory which is partitioned into 2 independent program memory blocks. The primary Block 0 occupies 16/32 KByte of internal program memory space and the secondary Block 1 occupies 8 KByte of internal program memory space. The 8-KByte secondary block can be mapped to the lowest location of the 16/32 KByte address space; it can also be hidden from the program counter and used as an independent EEPROM-like data memory. In addition to the 24/40 KByte of EEPROM program memory on-chip and 1024 x8 bits of on-chip RAM, the devices can address up to 64 KByte of external program memory and up to 64 KByte of external RAM. SST89E58RD2A Features • 8-bit 8051-Compatible Microcontroller (MCU) with Embedded SuperFlash Memory Fully Software Compatible Development Toolset Compatible Pin-For-Pin Package Compatible• SST89E5xRD2A Operation 0 to 40 MHz at 5V• SST89V5xRD2A 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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