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AT89LP51RD2_14 Datasheet, PDF (1/26 Pages) ATMEL Corporation – 8-bit Microcontroller Compatible with 8051 Products | |||
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Features
⢠8-bit Microcontroller Compatible with 8051 Products
⢠Enhanced 8051 Architecture
â Single Clock Cycle per Byte Fetch
â 12 Clock per Machine Cycle Compatibility Mode
â Up to 20 MIPS Throughput at 20 MHz Clock Frequency
â Fully Static Operation: 0 Hz to 20 MHz
â On-chip 2-cycle Hardware Multiplier
â 16x16 MultiplyâAccumulate Unit
â 256 x 8 Internal RAM
â On-chip 2KB Expanded RAM (ERAM)
⢠Software Selectable Size (0, 256, 512, 768, 1024, 1792, 2048 Bytes)
â Dual Data Pointers
â 4-level Interrupt Priority
⢠Nonvolatile Program and Data Memory
â 64KB of In-System Programmable (ISP) Flash Program Memory
â 4KB of EEPROM (AT89LP51ED2/ID2 Only)
â 512-byte User Signature Array
â Endurance: 10,000 Write/Erase Cycles
â Serial Interface for Program Downloading
â 2KB Boot ROM Contains Low Level Flash Programming Routines and a Default
Serial Bootloader
⢠Peripheral Features
â Three 16-bit Enhanced Timer/Counters
â Seven 8-bit PWM Outputs
â 16-bit Programmable Counter Array
⢠High Speed Output, Compare/Capture
⢠Pulse Width Modulation, Watchdog Timer Capabilities
â Enhanced UART with Automatic Address Recognition and Framing
Error Detection
â Enhanced Master/Slave SPI with Double-buffered Send/Receive
â Two Wire Interface 400K bit/s
â Programmable Watchdog Timer with Software Reset
â 8 General-purpose Interrupt and Keyboard Interface Pins
⢠Special Microcontroller Features
â Dual Oscillator Support: Crystal, 32 kHz Crystal, 8 MHz Internal (AT89LP51ID2)
â Two-wire On-Chip Debug Interface
â Brown-out Detection and Power-on Reset with Power-off Flag
â Selectable Polarity External Reset Pin
â Low Power Idle and Power-down Modes
â Interrupt Recovery from Power-down Mode
â 8-bit Clock Prescaler
⢠I/O and Packages
â Up to 40 Programmable I/O Lines
â Green (Pb/Halide-free) PLCC44, VQFP44, QFN44, PDIP40
â Configurable I/O Modes
⢠Quasi-bidirectional (80C51 Style), Input-only (Tristate)
⢠Push-pull CMOS Output, Open-drain
⢠Operating Conditions
â 2.4V to 5.5V VCC Voltage Range
â -40° C to 85°C Temperature Range
â 0 to 20 MHz @ 2.4Vâ5.5V (Single-cycle)
8-bit Flash
Microcontroller
with 64KB
Program
Memory
AT89LP51RD2
AT89LP51ED2
AT89LP51ID2
Preliminary
Summary
3714ASâMICROâ7/11
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