SST89E51 Datasheet | Silicon Storage Technology

FEATURES : - 8-bit 8051-patible Microcontroller (MCU) with Embedded Super Flash Memory - Fully Software patible - Development Toolset patible - Pin-for-Pin Package patible - SST89E5x RC Operation - 0 to 40 MHz at 5V - SST89V5x RC Operation - 0 to 33 MHz at 3V - Total 512 Byte Internal RAM (256 Byte by default + 256 Byte enabled by software) - Single Block Super Flash EEPROM - SST89E/V54RC: 16 KByte primary partition + 1 KByte secondary partition - SST89E/V52RC: 8 KByte primary partition + 1 KByte secondary partition - SST89E/V51RC: 4 KByte primary partition + 1 KByte secondary partition - Primary Partition is divided into Four Pages - Secondary Partition has One Page - Individual Page Security Lock - In-System Programming (ISP) - In-Application Programming (IAP) - Small-Sector Architecture: 128-Byte Sector Size - Support External Address Range up to 64 KByte of Program and Data Memory - Three High-Current Port 1 pins (16 m A each) - Three 16-bit Timers/Counters - Full-Duplex, Enhanced UART - Framing error detection - Automatic address recognition - Eight Interrupt Sources at 4 Priority Levels - Programmable Watchdog Timer (WDT) - Programmable Counter Array (PCA) - Four 8-bit I/O Ports (32 I/O Pins) - 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-patible Logic Levels - Low Power Modes - Power-down Mode with External Interrupt Wake-up - Idle Mode - Selectable Operation...