PIC32MX110F016BT-V/ML - 32-bit 40MHz MCU, 16KB Flash, AEC-Q100 | Microchip
MPN: PIC32MX110F016BT-V/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.45 | $3.45 |
| 10 | $3.1 | $31.00 |
| 100 | $2.78 | $278.00 |
| 500 | $2.5 | $1,250.00 |
| 1,000 | $2.27 | $2,270.00 |
| 2,600 | $2.05 | $5,330.00 |
PIC32MX110F016BT-V/ML Overview
A microcontroller (MCU) is an integrated circuit containing a CPU core, program and data memory, and programmable peripherals such as timers, communication interfaces, and analog blocks. PIC32MX110F016B sits inside the Microchip PIC32MX family, which in turn belongs to the broader 32-bit microcontroller category within the larger family of embedded processors that includes ARM Cortex-M, RISC-V, and MIPS architectures. MCUs are the central compute element of nearly every embedded system, executing firmware that interacts with sensors, actuators, displays, and external buses.
Key features of this device include 21 general-purpose I/O pins, four DMA channels with automatic data size detection, a 10-bit ADC with multiple channels, and a Charge Time Measurement Unit (CTMU) for mTouch capacitive-touch sensing. Two separate PLLs (one for the CPU, one for USB) simplify mixed-clock designs, and five 16-bit timers cover a wide range of PWM and capture/compare tasks. The configurable Watchdog Timer with on-chip Low-Power RC oscillator enhances safety in noisy or low-power modes.
The architecture combines a MIPS32 M4K core with Microchip's Peripheral Pin Select (PPS) fabric, allowing remapping of most digital peripherals to virtually any I/O pin. This is especially valuable in compact 28-pin designs where pin assignments often conflict with PCB layout, eliminating the need to re-spin a board for routing reasons. The integrated Full-Speed USB 2.0 device controller with on-chip transceiver simplifies connectivity without an external PHY.
Typical applications include automotive body and infotainment modules, USB Human Interface Devices (HIDs) such as keyboards and mice, graphics interfaces via PMP for low-cost LCDs, capacitive touch panels using mTouch, and industrial control nodes. The wide operating voltage range and AEC-Q100 qualification make it well-suited to automotive and harsh industrial environments.
When designing with this device, allocate PCB copper under the exposed pad for thermal relief and ensure the decoupling network uses 100 nF plus bulk capacitance within a few millimetres of the supply pins. The PPS feature must be configured at startup; forgetting to enable a peripheral's PPS mapping is a common first-time designer pitfall.
This page synthesizes official Microchip specifications, AEC-Q100 automotive qualification details, drop-in PIC32MX1x0 family alternatives, and practical design notes that are not assembled in a single place on the manufacturer datasheet or distributor listing.
Drop-in alternatives for PIC32MX110F016BT-V/ML — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC32MX110F016BT-V/ML (same form factor and footprint) — differing in Package, DMA Channels, ADC, Operating Temperature, Operating Temperature Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX110F016B-I/ML
✅ Drop-In✓ In Stock
$1.82 / Unit
View Datasheet →PIC32MX110F016BT-50I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX120F032B-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX130F064B-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC32MX110F016BT-50V/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MM0064GPM028-I/ML
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →PIC32MX110F016BT-V/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K |
| Core Size | 32-bit |
| Maximum CPU Clock | 40 MHz |
| Program Memory (Flash) | 16 KB (16K x 8) |
| Data Memory (SRAM) | 4 KB |
| Supply Voltage Range | 2.3 V to 3.6 V |
| Operating Temperature Range | -40 °C to +105 °C |
| I/O Pins | 21 |
| Package | 28-pin QFN (6 x 6 mm) with exposed pad |
| Mounting Type | Surface Mount |
| Automotive Qualification | AEC-Q100 |
| USB | USB 2.0 Full-Speed Device with on-chip transceiver |
| Communication Interfaces | 2x UART, 2x I2C, 2x I2S/SPI, PMP |
| Timers | 5 x 16-bit |
| DMA Channels | 4 |
| ADC | 10-bit |
| Special Features | Peripheral Pin Select (PPS), CTMU mTouch, separate PLLs for CPU and USB |
| RoHS Status | Compliant |
PIC32MX110F016BT-V/ML Pin Configuration
| Pin 1 | RA0 — General-purpose I/O / analog input |
| Pin 2 | RA1 — General-purpose I/O / analog input |
| Pin 3 | RA2 — General-purpose I/O / analog input |
| Pin 4 | RA3 — General-purpose I/O / analog input |
| Pin 5 | RA4 — General-purpose I/O |
| Pin 6 | AVDD — Analog supply voltage |
| Pin 7 | AVSS — Analog ground |
| Pin 8 | RA7 — General-purpose I/O |
| Pin 9 | RA8 — General-purpose I/O |
| Pin 10 | RA9 — General-purpose I/O |
| Pin 11 | RB0 — General-purpose I/O / programming pin |
| Pin 12 | RB1 — General-purpose I/O |
| Pin 13 | RB2 — General-purpose I/O |
| Pin 14 | RB3 — General-purpose I/O |
| Pin 15 | VSS — Digital ground |
| Pin 16 | VDD — Digital supply voltage |
| Pin 17 | RB4 — General-purpose I/O |
| Pin 18 | RB5 — General-purpose I/O |
| Pin 19 | RB6 — General-purpose I/O |
| Pin 20 | RB7 — General-purpose I/O |
| Pin 21 | RB8 — General-purpose I/O |
| Pin 22 | RB9 — General-purpose I/O |
| Pin 23 | RB10 — General-purpose I/O |
| Pin 24 | RB11 — General-purpose I/O |
| Pin 25 | RB12 — General-purpose I/O |
| Pin 26 | RB13 — General-purpose I/O |
| Pin 27 | RB14 — General-purpose I/O |
| Pin 28 | RB15 — General-purpose I/O |
Typical Applications
PIC32MX110F016BT-V/ML is suitable for 6 applications: Automotive Body Electronics Modules, USB Human Interface Devices (HID), Graphics Interfaces via PMP, Capacitive Touch Panels (mTouch), Industrial Sensor Hubs, Low-Cost Audio/Streaming Bridges.
Automotive Body Electronics Modules
The PIC32MX110F016BT-V/ML suits in-cabin body controllers, HVAC panels, and small motor-control ECUs because of its AEC-Q100 qualification across -40C to +105C and 2.3V-3.6V operation that aligns with automotive 12V-battery-derived rails. Its 16KB Flash fits typical switch-input, CAN-over-UART, and LED-driver firmware, while 4KB SRAM is enough for small state machines. The integrated USB Full-Speed controller is a practical diagnostic port for OEM service tools. Compared with a 16-bit PIC24 alternative, the 32-bit MIPS M4K core gives headroom for OEM-proprietary bootloader and security extensions. Use it as the central MCU when pin count and BOM cost are constrained but automotive qualification is mandatory.
Recommended
USB Human Interface Devices (HID)
USB keyboards, mice, HID-class game controllers, and remote controls benefit from the PIC32MX110F016BT-V/ML's on-chip Full-Speed USB device controller and 48MHz USB PLL, which eliminate the external PHY BOM cost. 16KB Flash holds typical HID bootloaders and report descriptor tables, while 4KB SRAM buffers endpoint data and USB ping-pong packets. PPS lets the designer route the D+/D- lines to whichever physical pins the 28-QFN layout prefers, removing a common 4-layer board constraint. The 40MHz MIPS M4K core processes HID polling at 1 kHz with ample headroom for LED-matrix scanning, debouncing, and macro firmware.
Recommended
Graphics Interfaces via PMP
The Parallel Master Port (PMP) on the PIC32MX110F016BT-V/ML drives low-cost graphic LCDs and OLED panels for HMI front panels, appliance displays, and small industrial HMIs. The PMP interface in this part supports 8-bit or 16-bit data plus dedicated control lines, and is fast enough at 40MHz to refresh small QVGA panels. Combined with the CTMU mTouch module, the same MCU can drive both display and capacitive-touch buttons, eliminating a second IC in a front-panel design. The 28-QFN package saves board space versus a 44/64-pin variant when only a modest pin count is required for display control.
Recommended
Capacitive Touch Panels (mTouch)
The CTMU (Charge Time Measurement Unit) inside the PIC32MX110F016BT-V/ML enables Microchip's mTouch capacitive-touch sensing on the same pins used for digital I/O, saving external touch-IC cost in front-panel designs. The 10-bit ADC combined with CTMU delivers reliable touch-button and slider performance across the full -40C to +105C automotive temperature range. 16KB Flash holds the touch-scan state machine, baseline tracking, and gesture-recognition firmware typical of mid-tier appliance user interfaces. Use PPS to remap CTMU inputs to convenient QFN pins for compact PCB layouts.
Recommended
Industrial Sensor Hubs
The PIC32MX110F016BT-V/ML is well suited to industrial sensor hubs that aggregate 4-20mA loops, RTDs, and digital sensors over I2C/SPI into a USB or UART uplink. 16KB Flash is sufficient for protocol-conversion firmware, while 4KB SRAM buffers typical industrial telemetry streams. The two I2C and two UART modules let the design connect multiple sensor buses simultaneously without an external mux, and PMP/PPS route the signals to clean PCB locations. The 2.3V-3.6V operating range accepts common 3.3V industrial rails directly. AEC-Q100 qualification is an asset in harsh factory environments even when the application is not strictly automotive.
Recommended
Low-Cost Audio/Streaming Bridges
The two I2S/SPI modules on the PIC32MX110F016BT-V/ML make this part a useful bridge between I2S audio codecs and a USB host, supporting low-cost USB-to-I2S dongles and streaming endpoints. While the 16KB Flash and 4KB SRAM cannot host a full audio CODEC stack, they are adequate for small-volume HID-class or CDC-class bridges, sample-rate converters, and basic digital-mixer firmware. The 40MHz core provides enough cycles for simple real-time mixing, and PMP pins can double as GPIO expansion if a small front panel is required. Choose this part when cost is more important than raw DSP headroom.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX110F016BT-V/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX110F016B-I/ML | PIC32MX110F016BT-50I/ML | PIC32MX120F032B-I/ML | PIC32MX130F064B-I/ML | PIC32MX110F016BT-50V/ML | PIC32MM0064GPM028-I/ML |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN (6x6) | 28-QFN (6x6) | 28-QFN (6x6) | 28-QFN (6x6) | 28-QFN (6x6) | 28-QFN (6x6) | 28-QFN (6x6) |
| Core / Speed | MIPS32 M4K, 40 MHz | MIPS32 M4K, 40 MHz | MIPS32 M4K, 40 MHz (50 MHz rated) | MIPS32 M4K, 40 MHz | MIPS32 M4K, 40 MHz | MIPS32 M4K, 40 MHz (50 MHz rated) | PIC32MM microA MIPS, 25 MHz |
| Flash / SRAM | 16 KB / 4 KB | 16 KB / 4 KB | 16 KB / 4 KB | 32 KB / 8 KB | 64 KB / 8 KB | 16 KB / 4 KB | 64 KB / 8 KB |
| Operating Voltage | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.0 V to 3.6 V |
| Temperature Grade | Automotive -40C to +105C (V) | Industrial -40C to +85C (I) | Industrial -40C to +85C (I) | Industrial -40C to +85C (I) | Industrial -40C to +85C (I) | Automotive -40C to +105C (V) | Industrial -40C to +85C (I) |
| Automotive (AEC-Q100) | Yes (V) | No | No | No | No | Yes (V) | No |
| USB | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device |
Key Differentiators
- Smallest 28-QFN footprint in PIC32MX110F016B family (vs PIC32MX110F016B-I/SS)
- On-chip Full-Speed USB with dedicated PLL (vs PIC32MM0064GPM028-I/ML)
- AEC-Q100 automotive qualification at 105C (vs PIC32MX120F032B-I/ML)
Design Notes
Place a 10 uF bulk capacitor plus a 100 nF ceramic decoupling capacitor within 5 mm of each VDD/AVDD pair. According to the Microchip PIC32MX1xx/2xx family datasheet, an inadequate decoupling network can cause brown-out resets under USB Full-Speed bus activity. The PIC32MX110F016BT-V/ML's on-chip LDO handles core supply from a single external 3.3 V rail, simplifying power-tree design.
The 28-QFN exposed thermal pad MUST be soldered to a continuous copper ground pour of at least 100 mm^2 on the top layer. Estimated: with theta_JA around 40 C/W on a standard JEDEC 2s2p board, sustained 40 MHz CPU activity plus USB traffic keeps junction rise below 20 C above ambient, well within the +105 C automotive ceiling. Avoid cutting the thermal pour under the EP, which traps heat and may invalidate AEC-Q100 thermal margin.
Peripheral Pin Select (PPS) is unlocked by default and MUST be remapped to physical pins in the firmware before digital peripherals (UART, SPI, I2C, USB D+/D-) can function. According to the Microchip datasheet, leaving PPS at defaults results in peripherals that compile but produce no signal. A second common pitfall is forgetting to clear the JTAGEN bit - this disables the JTAG pins, releasing them for general I/O on a 28-pin QFN.
Keep the 12 MHz crystal traces short and surrounded by a ground guard trace tied to GND, since the PIC32MX110F016BT-V/ML's PLL multiplies the 12 MHz reference by integer ratios to reach 40 MHz CPU and 48 MHz USB clocks. Long or noisy crystal traces cause jitter that fails USB compliance. Differential length matching on USB D+/D- is not strictly required at Full-Speed, but matched lengths within 2 mm help meet the eye-diagram template.
Compliance Information
AEC-Q100 qualified per the 'V' ordering code per Microchip product page. RoHS/REACH compliance confirmed by Microchip's Material Composition declarations.
