PIC32MX110F016B-V/SS
PIC32MX110F016B-V/SS - 40MHz 32-bit MCU, 16KB Flash, 28-SSOP | Microchip
The Microchip Technology PIC32MX110F016B-V/SS is a 32-bit MIPS M4K microcontroller operating at 40 MHz with 16 KB Flash and 4 KB SRAM, housed in a 28-pin SSOP (R-PDSO-G28) surface-mount package. The device runs from a 2.3V to 3.6V supply, delivers up to 21 general-purpose I/O pins, and integrates peripherals such as two I2S/SPI modules, a Parallel Master Port (PMP), Peripheral Pin Select (PPS), and a Charge Time Measurement Unit (CTMU) for mTouch capacitive touch sensing.
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (SRAM), and integrated peripherals such as timers, communication controllers, and analog blocks. The PIC32MX1XX/2XX family belongs to the broader taxonomy: microcontroller -> embedded processor -> semiconductor IC. Within Microchip's portfolio, the PIC32MX sits between the 16-bit PIC24F/G and the higher-end PIC32MZ families, balancing MIPS performance, low power, and rich peripheral integration for cost-sensitive designs.
Key differentiating features include Peripheral Pin Select (PPS), which remaps most digital peripherals to any compatible I/O pin - dramatically simplifying PCB layout and reducing pin conflicts. The integrated CTMU enables capacitive touch measurement via a single ADC channel and timing source, supporting mTouch buttons, sliders, and proximity sensing without an external touch controller. The PMP interface supports graphics LCDs, and the dual I2S/SPI blocks support audio codecs and full-duplex serial communications.
Architecturally, the PIC32MX110F016B-V/SS uses the MIPS32 M4K core with a 5-stage pipeline, hardware multiply/divide, and tightly-coupled SRAM for deterministic interrupt response. The Flash program memory supports self-programming via the boot Flash region, and the device includes an on-chip debugger accessible through the ICSP interface using MPLAB Snap, MPLAB ICD-4, or PICkit 4.
Typical applications include consumer audio peripherals, low-cost HMI panels, capacitive-touch human-interface devices, USB HID peripherals, industrial sensor hubs, and low-power IoT edge nodes. The wide operating temperature range (-40C to +105C) and 2.3V-3.6V supply suit battery and industrial 3.3V bus systems. The PIC32MX110F016B-V/SS offers compelling price-to-performance compared with 8/16-bit MCUs for designs requiring MIPS-class throughput without the cost of higher-tier PIC32MZ parts.
Design tip: place a 0.1 uF decoupling capacitor as close as possible to every VDD/VSS pair, and connect the MCLR pin through a 10 kohm pull-up to VDD for proper reset behavior. Use PPS to assign peripherals to convenient pins during schematic capture, and configure the CTMU via the dedicated CTMUCON register set for accurate touch measurements.
This page synthesizes distributor pricing, drop-in alternatives within the PIC32MX1XX family, application companion ICs, and practical design notes beyond the manufacturer datasheet DS60001168L, supporting BOM optimization and second-source decisions.
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