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STC15W4K56S4 LQFP-64 Specifications

#### Manufacturer: STC Micro

#### Description:

The STC15W4K56S4 is a high-performance 8051-based microcontroller with enhanced features, including high-speed operation, large memory capacity, and multiple integrated peripherals. It is designed for embedded applications requiring robust performance and low power consumption.

#### Key Features:

1. Core:

• Enhanced 8051 CPU (1T mode, up to 35 MHz)
• Fully compatible with standard 8051 instruction set

2. Memory:

• Flash Program Memory: 56 KB
• SRAM: 4 KB
• EEPROM: 1 KB

3. Operating Voltage:

• 2.4V to 5.5V (wide voltage range)

4. I/O Ports:

• Up to 62 general-purpose I/O pins (LQFP-64 package)
• Configurable pull-up/pull-down resistors

5. Timers/Counters:

• 4x 16-bit timers (Timer0, Timer1, Timer2, Timer3)
• 1x Watchdog Timer (WDT)

6. Communication Interfaces:

• 2x UART (Serial Ports)
• 1x SPI (Serial Peripheral Interface)
• 1x I²C (Inter-Integrated Circuit)

7. ADC (Analog-to-Digital Converter):

• 8-channel, 10-bit ADC
• Conversion speed up to 300 KSPS

8. PWM (Pulse Width Modulation):

• 6-channel PWM output

9. Clock Options:

• Internal RC oscillator (adjustable)
• External crystal oscillator support (up to 35 MHz)

10. Low Power Modes:

• Idle Mode
• Power-Down Mode

11. Package:

• LQFP-64 (Low-profile Quad Flat Package)

12. Operating Temperature:

• -40°C to +85°C

13. Additional Features:

• Hardware encryption (for code protection)
• Power-on reset (POR) & Brown-out detection (BOD)
• On-chip debugging support

This microcontroller is widely used in industrial control, consumer electronics, and embedded systems requiring high-speed processing and low power consumption.