AT89LP51

Features 8-bit Microcontroller Compatible with 8051 Products Enhanced 8051 Architecture – Single Clock Cycle per Byte Fetch – 12 Clock per Machine Cycle Compatibility Mode – Up to 20 MIPS Throughput at 20 MHz Clock Frequency – Fully Static Operation: 0 Hz to 20 MHz – On-chip 2-cycle Hardware Multiplier – 256 x 8 Internal RAM – External Data/Program Memory Interface – Dual Data Pointers – 4-level Interrupt Priority Nonvolatile Program and Data Memory – 4K/8K Bytes of In-System Programmable (ISP) Flash Program Memory – 256 Bytes of Flash Data Memory – 256-byte User Signature Array – Endurance: 10,000 Write/Erase Cycles – Serial Interface for Program Downloading – 64-byte Fast Page Programming Mode – 3-level Program Memory Lock for Software Security – In-Application Programming of Program Memory Peripheral Features – Three 16-bit Timer/Counters with Clock Out Modes – Enhanced UART Automatic Address Recognition Framing Error Detection SPI and TWI Emulation Modes – Programmable Watchdog Timer with Software Reset and Prescaler Special Microcontroller Features – Brown-out Detection and Power-on Reset with Power-off Flag – Selectable Polarity External Reset Pin – Low Power Idle and Power-down Modes – Interrupt Recovery from Power-down Mode – Internal 1.8432 MHz Auxiliary Oscillator I/O and Packages – Up to 36 Programmable I/O Lines – Green (Pb/Halide-free) Packages 40-lead PDIP 44-lead TQFP/PLCC 44-pad VQFN/MLF – Configurable Port Modes (per 8-bit port) Quas...