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)