Description

The AT89LP2052/LP4052 is a low-power, high-performance CMOS 8-bit microcontroller with 2/4K bytes of In-System Programmable Flash memory. The device is manufactured using Atmel's high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set. It features an enhanced CPU core that can fetch a single byte from memory every clock cycle, providing faster execution times compared to the classic 8051 architecture.

Specifications and Features

- Compatible with MCS®51 Products

- 20 MIPS Throughput at 20 MHz Clock Frequency and 2.4V, 85°C Operating Conditions

- Single Clock Cycle per Byte Fetch

- 2/4K Bytes of In-System Programmable (ISP) Flash Memory

- Serial Interface for Program Downloading

- 32-byte Fast Page Programming Mode

- 32-byte User Signature Array

- 2.4V to 5.5V VCC Operating Range

- Fully Static Operation: 0 Hz to 20 MHz

- 2-level Program Memory Lock

- 256 x 8 Internal RAM

- Hardware Multiplier

- 15 Programmable I/O Lines

- Configurable I/O with Quasi-bidirectional, Input, Push-pull Output, and Open-drain Modes

- Enhanced UART with Automatic Address Recognition and Framing Error Detection

- Enhanced SPI with Double-buffered Send/Receive

- Programmable Watchdog Timer with Software Reset

- 4-level Interrupt Priority

- Analog Comparator with Selectable Interrupt and Debouncing

- Two 16-bit Enhanced Timer/Counters with 8-bit PWM

- Brown-out Detector and Power-off Flag

- Internal Power-on Reset

- Low Power Idle and Power-down Modes

- Interrupt Recovery from Power-down Mode

Application Scenarios

The AT89LP2052/LP4052 microcontroller is well-suited for various applications, including but not limited to:

• Industrial control systems
• Embedded systems
• Automotive electronics
• Home automation

Comparison

- Low-power consumption

- High-performance

- In-System Programmable Flash memory

- Wide operating voltage range

- Enhanced CPU core for faster execution times

- Limited program memory size (2/4K bytes)