AT89LP216 is a low-power, high-performance CMOS 8-bit microcontroller that has 2k bytes of ISP Flash memory. The product is manufactured using Atmel's high-density non-volatile memory technology and is compatible with the industrial standard de's MCS51 instruction set. AT89LP216 is based on an enhanced CPU core that reads single-byte instructions per clock cycle. In the classic 8051 structure, each read requires 6 clock cycles, making the execution of instructions require 12, 24 or 48 clock cycles. In the AT89LP216 CPU, instructions only require 1 to 4 clock cycles to achieve 6 to 12 times the speed of conventional 8051. 70% of the instruction bytes are equal to the number of clock cycles executed, and other instructions only require one additional clock. At the same power consumption, the enhanced CPU core can reach 20MIPS, while the conventional 8051CPU can only reach 4MIPS. Conversely, at the same operating speed, the new CPU core has a lower clock speed and power consumption than the traditional 8051.
The AT89LP216 is a low‑power, high‑performance CMOS 8‑bit microcontroller with 2 KB on‑chip flash, 128 bytes of RAM and a rich set of peripherals including multiple timers, UART, SPI and configurable I/O. The document provides detailed descriptions of the CPU core, memory organization, pin functions, special function registers, and programming interfaces.
It also covers electrical characteristics, package options (16‑lead PDIP, SOIC, TSSOP), and usage guidelines such as voltage ranges, temperature limits, and flash‑memory endurance. The handbook is intended for designers and developers working with the AT89LP216 in embedded applications. This manual is written in Chinese.
| Flash memory size | 2 KB |
|---|---|
| RAM size | 128 bytes |
| Maximum CPU frequency | 20 MHz |
| Operating voltage range | 2.4 V – 5.5 V |
| I/O voltage rating | 5 V |
| Operating temperature range | -40 °C – 85 °C |
| Package types | 16‑lead PDIP, SOIC, TSSOP |
| Flash erase endurance | 10 000 cycles |
| Data retention | 10 years |
The device contains 2 KB of on‑chip flash memory.
It provides 128 bytes of internal RAM.
The microcontroller operates from 2.4 V up to 5.5 V.
The CPU can run up to 20 MHz (20 MTPS).