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AT89LP51 Datasheet(PDF) 1 Page - ATMEL Corporation |
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AT89LP51 Datasheet(HTML) 1 Page - ATMEL Corporation |
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1 / 113 page  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) • Quasi-bidirectional (80C51 Style) • Input-only (Tristate) • Push-pull CMOS Output • Open-drain • Operating Conditions – 2.4V to 5.5V V CC Voltage Range –-40 ° C to 85°C Temperature Range – 0 to 20 MHz @ 2.4V–5.5V – 0 to 25 MHz @ 4.5V–5.5V 8-bit Microcontroller with 8K Bytes In-System Programmable Flash AT89LP51 AT89LP52 Preliminary 3709B–MICRO–12/10 |
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