Technical datasheet for the LG GMS97C2051 microcontroller, covering pinout, registers, memory, and electrical specifications.
The LG GMS97C2051 is a 2 k‑byte EPROM microcontroller based on the MCS‑51 core. It provides 128 bytes of SRAM, a range of on‑chip peripherals, and supports clock frequencies of 12 MHz to 24 MHz. The document details the pin configuration, register map, and programming interface.
Package options include PDIP and SOP variants with 20 leads and a 0.300‑inch lead spacing. Electrical characteristics such as operating voltage (4.25 V‑5.5 V) and programming voltage (Vpp ≈ 12.75 V + 0.25 V) are also specified. This manual is written in Chinese.
| Operating Voltage | 4.25 V – 5.5 V |
|---|---|
| Clock Frequency | 12 MHz – 24 MHz |
| SRAM Size | 128 bytes |
| Package Types | PDIP, SOP (20‑lead) |
| Lead Count | 20 leads |
| Lead Pitch | 0.300 in |
| Programming Voltage (Vpp) | 12.75 V + 0.25 V |
The device operates from 4.25 V to 5.5 V.
It can run at either 12 MHz or 24 MHz.
The microcontroller includes 128 bytes of SRAM.
It is available in PDIP and SOP packages, both with 20 leads and a 0.300‑inch lead spacing.