STC STC90C58AD Series Microcontroller Guide

About this manual

The guide introduces the STC90C58AD series, highlighting its ultra‑low power consumption, high speed (0‑40 MHz), strong anti‑interference design, and various packaging options such as LQFP44 (recommended) and PDIP40 (not recommended). It also describes the series' encryption technology, ISP/IAP programming support, and typical application scenarios.

Technical details cover the device's operating voltage (5.5‑3.8 V), memory capacities (32 KB Flash, 4 KB SRAM, 1.28 KB EEPROM), peripheral features (3 UARTs, up to 8‑channel A/D, PWM, timers, watchdog, and I²C/SPI), pin‑out diagrams, and programming methods using the STC‑ISP software. This manual is written in Chinese.

What's inside

• Packaging Options
• Operating Voltage
• Memory Specifications
• Peripheral Features
• Programming and ISP
• Pinout Diagram
• Power Modes
• Encryption Technology

Specifications

Frequently asked questions

Does the STC90C58AD support ISP programming?

Yes, it can be programmed via the STC‑ISP software without a separate programmer.

What packaging options are available for the STC90C58AD?

LQFP44 (recommended), PDIP40 (available but not recommended), PLCC44 and PQFP‑44 (not recommended).