87LPC762 is a low-power, low-cost, low-pin count (20 pin) microcontroller with 2 kbyte OTP. This document is a preliminary specification for this product
The 87LPC762 is a 20‑pin single‑chip microcontroller designed for low‑cost, low‑pin‑count applications. It features an accelerated 80C51 CPU, 2 kbytes of EPROM code memory, 128 bytes of RAM, two analog comparators, a full‑duplex UART, and two 16‑bit timer/counters. The device operates from 2.7 V to 6.0 V and includes configurable I/O ports, LED drive capability, and an on‑chip watchdog timer with oscillator fail detection.
The microcontroller is offered in 20‑pin DIP, SO, and TSSOP packages with temperature ranges from 0 °C to +70 °C (or –45 °C to +85 °C for the FD variants). Detailed pin descriptions, memory maps, and electrical characteristics are provided for designers.
| CPU | Accelerated 80C51 |
|---|---|
| Operating Voltage | 2.7 V to 6.0 V |
| EPROM Code Memory | 2 kbytes |
| RAM Data Memory | 128 bytes |
| I/O Pins | 15 I/O pins minimum, up to 18 I/O pins |
| Analog Comparators | Two |
| UART | Full duplex |
| Watchdog Timer | On‑chip oscillator, selectable timeout |
| Package Types | 20‑pin DIP, SO, TSSOT |
| Temperature Range | 0 °C to +70 °C (standard), –45 °C to +85 °C (FD) |
| Maximum Clock Frequency | 20 MHz (5 V), 10 MHz (3 V) |
| LED Drive Capability | 20 mA per pin |
| Power‑Down Current | Typical 1 A |
The device operates from 2.7 V to 6.0 V for digital functions.
It includes 2 kbytes of EPROM code memory.
The microcontroller is offered in 20‑pin DIP, SO, and TSSOP packages.
It is based on an accelerated 80C51 CPU architecture.