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Atmel AT89LP52 8-Bit Microcontrollers
Atmel AT89LP52 8-Bit Microcontrollers

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Atmel AT89LP52 8-Bit Microcontrollers

Atmel AT89LP52 8-bit microcontrollers (MCUs) are single-cycle devices with 8KB In-System Programmable (ISP) Flash. Atmel AT89LP52 MCUs feature 12-clock compatibility mode, 256 bytes of Flash data memory, and 256 bytes of RAM. These Atmel MCUs have an enhanced 8051 architecture that provides up to 20MIPS throughput at 20MHz clock frequency, dual data pointers, and 4-level interrupt priority.

  • 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
    • 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 VCC 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
  • Atmel
  • Semiconductors|Embedded Processors|IC-MCU/MPU