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Digital Capacitive Processor Chip MCP1081S

Digital Capacitance Processor Chip - MCP1081S

Product Model: MCP1081S

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Product Introduction

MCP1081S (Mysentech Capacitive Processor) is a new generation capacitive sensing microprocessor SoC chip launched by Mysentech, integrating a ten-channel, multi-mode, wide-frequency capacitive analog front-end sensing circuit, microprocessor, memory, and rich I/O interfaces. The capacitance measurement frequency is configurable within the range of 0.1~30MHz, with 16-bit output.Digital signal, with a high resolution of 1fF. The chip supports multiple operating modes and can measure various modes including single-ended capacitance, double-ended floating capacitance, and mutual capacitance. The chip integrates a 16-bit high-precision digital temperature sensor internally, which can be used in scenarios requiring temperature compensation and other composite temperature sensing.

To address embedded processing for capacitive sensing across various industries, the SoC chip integrates a microprocessor with an Arm® Cortex®-M0 core, enabling edge computing for various sensing algorithms, converting raw measured oscillation frequency values into capacitance values and specific physical quantities such as liquid level, moisture content, displacement, proximity distance, etc. The chip features 16KB Flash memory and 2KB SRAM, allowing developers to write application software and store sensing calibration and application data. The chip also integrates hardware resources such as ADC, advanced timers, general-purpose timers, 16-bit basic timers, as well as USART.And interfaces such as I2C.

I. Features of Digital Capacitive Processor Chip - MCP1081S:

Capacitive Sensing Front-End
– 10 Single-Ended Capacitance/5 Double-Ended Capacitance Measurement Channels
– Capacitance Measurement Range: 1pF~10nF
– Capacitance Detection Frequency: 100KHz~30MHz
– Capacitance/Frequency Resolution: 16-bit
– Supports Active Shielding, Adjacent Mutual Capacitance Measurement
Core and System
– 32-bit Arm®Cortex®-M0
– Operating Frequency Up to 48MHz
Memory
– 16KB Flash Memory
– 2KB SRAM
Clock, Reset, and Power Management
– 2.3V~5.5V Power Supply
– Power-On/Power-Down Reset (POR/PDR), Programmable Voltage Detector (PVD)
– Embedded 48MHz HSI High-Speed Oscillator
– Embedded 40KHz LSI Low-Speed Oscillator
– Supports External Clock Input Up to 48MHz (HSE, via OSCIN Pin)
Low Power Consumption
– Supports Low-Power Modes, Including: Sleep and Deep Sleep
– Average Power Consumption: 12uA@1Hz
5 Timers
– 1 16-bit 4-Channel Advanced Control Timer (TIM1)
– 1 16-bit 4-Channel General-Purpose Timer (TIM3)
– 1 16-bit Basic Timer (TIM14)
– 1 Independent Clocked Hardware Watchdog Timer (IWDG)
– 1 Systick Timer: 24-bit Down Counter
9 Fast I/O Ports
– All I/O ports can be mapped to external interrupts
– All ports can input and output signals with voltage not exceeding VDD
3 Communication Interfaces
– 1 USART Interface
– 1 I2C Interface

1 12-bit Analog-to-Digital Converter (ADC), supporting the fastest 1μs conversion time (1MSPS sampling rate), configured with 4 external channels and 1 internal channel for acquiring the built-in reference voltage

CRC Calculation Unit

96Bit Chip Unique ID (UID)

Debug Mode – Serial Wire Debug (SWD) Interface

Operating Temperature Range: -40℃~+85℃

Single Channel Conversion Time: Configurable from 0.1ms to 23.5ms

Built-in 16-bit High-Precision Digital Temperature Measurement

II. Applications of Digital Capacitive Processor Chip - MCP1081S:

Liquid Level Measurement

Moisture Content Measurement

Dryness and Humidity Analysis

Water Immersion Sensing

Dielectric Detection