PRODUCT DESCRIPTION

SST89C54 and SST89C58 are members of the FlashFlex51 family of 8-bit microcontrollers. The FlashFlex51 family is a family of embedded microcontroller products designed and manufactured on the state-of-the-art SuperFlash CMOS semiconductor process technology.

FEATURES:

? Multi-Purpose 8-bit 8051 Family Compatible Microcontroller Unit (MCU) with Embedded SuperFlash Memory

? Fully Software and Development Toolset Compatible as well as Pin-For-Pin Package Compatible with Standard 8xC5x Microcontrollers

? 256 Bytes Register/Data RAM

? 20/36 KByte Embedded High Performance Flexible SuperFlash EEPROM

– One 16/32 KByte block (128-Byte sector size)

– One 4 KByte block (64-Byte sector size)

– Individual Block Security Lock with Softlock? feature

– 87C5x Programmer Compatible

– Concurrent Operation during In-Application Programming?(IAP?)

– Memory Re-Mapping for Interrupt Support during IAP

? Support External Address Range up to 64 KByte of Program and Data Memory

? High Current Drive on Port 1 (5, 6, 7) pins

? Three 16-bit Timer/Counter

? Programmable Serial Port (UART)

? Six Interrupt Sources at 2 Priority Levels

? Selectable Watchdog Timer (WDT)

? Four 8-bit I/O Ports (32 I/O Pins)

? TTL- and CMOS-Compatible Logic Levels

? Extended Power-Saving Modes

– Idle Mode

– Power Down Mode with External Interrupt Wake-up

– Standby (Stop Clock) Mode

? High Speed Operation at 5 Volts (0 to 33MHz)

? Low Voltage (2.7V) Operation (0 to 12MHz)

? PDIP-40, PLCC-44 and TQFP-44 Packages

? Temperature Ranges:

– Commercial (0°C to +70°C)

– Industrial (-40°C to +85°C)