PIC32MX150F128B-V/SP - 32-bit MCU 128KB Flash 40MHz 28-SPDIP | Microchip
MPN: PIC32MX150F128B-V/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.88 | $48.80 |
| 100 | $4.1 | $410.00 |
| 500 | $3.65 | $1,825.00 |
| 1,000 | $3.25 | $3,250.00 |
PIC32MX150F128B-V/SP Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and peripherals. The PIC32MX150 belongs to the MIPS-based PIC32 family, which sits in the broader hierarchy of 32-bit microcontrollers, embedded processors, and system-on-chip (SoC) devices. Compared with 8-bit and 16-bit MCUs, 32-bit devices offer higher MIPS per MHz, larger address spaces, and richer peripherals such as USB, Ethernet, and graphics LCD interfaces, making them suitable for connected and human-machine-interface applications.
Key differentiating features of this part include Peripheral Pin Select (PPS), which allows remapping of most digital peripherals to any I/O pin for flexible PCB routing; an on-chip Charge Time Measurement Unit (CTMU) that supports mTouch capacitive touch buttons and sliders and provides 1 ns high-resolution time measurement; an on-chip temperature measurement diode; and an integrated Parallel Master Port for direct connection to graphical LCDs or FPGA peripherals. Active power consumption is below 0.5 mA/MHz, helping battery-powered designs.
The architecture pairs a MIPS32 M4K core with five 16-bit timers (and up to two 32-bit timers), a 10-bit ADC, and a USB 2.0 full-speed device/host/OTG controller on selected variants. This combination supports audio playback, USB connectivity, and mixed-signal conditioning in a single chip.
Typical applications are USB audio devices, graphics HMI panels with PMP-driven LCDs, capacitive touch user interfaces, industrial control with on-chip temperature sensing, and low-cost 32-bit replacements for older 16-bit designs. When designing with this part, verify the V vs I temperature grade early, because the V variant is specified for -40C to +105C operation, while the I variant is rated for -40C to +85C and is typically cheaper. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes beyond the manufacturer datasheet.
Drop-in alternatives for PIC32MX150F128B-V/SP — 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 PIC32MX150F128B-V/SP (same form factor and footprint) — differing in Package, Operating Temperature, Timers, ADC, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX150F128B-I/SP
✅ Drop-In✓ In Stock
$3.56 / Unit
View Datasheet →PIC32MX150F128B-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.3 / Unit
View Datasheet →PIC32MX150F128BT-V/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.81 / Unit
View Datasheet →PIC32MX130F256B-V/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX130F064B-V/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.15 / Unit
View Datasheet →PIC32MX170F256B-V/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.05 / Unit
View Datasheet →PIC32MX150F128B-V/SP Maximum Ratings & Electrical Characteristics
| Manufacturer | Microchip Technology |
| Series | PIC32MX1xx/2xx |
| Core Processor | MIPS32 M4K |
| Core Size | 32-Bit |
| Max CPU Speed | 40 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| RAM | 32 KB |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| Active Current Consumption | <0.5 mA/MHz |
| Operating Temperature (V grade) | -40C to +105C |
| I/O Pins | 21 |
| Package | 28-SPDIP (Skinny Plastic DIP) |
| Mounting Type | Through-Hole |
| Peripheral Pin Select (PPS) | Yes |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| Parallel Master Port (PMP) | Yes |
| CTMU (mTouch capacitive touch) | Yes, with 1 ns time resolution |
| On-chip Temperature Sensor | Yes |
| Timers | Five 16-bit, up to two 32-bit |
| I2S / SPI Modules | 2 |
| ROM Type | Flash |
| Lifecycle Status | Active |
| RoHS | Compliant |
PIC32MX150F128B-V/SP Pin Configuration
| Pin 1 | RPB0/RF0/AN0 — Remappable I/O / analog input 0 |
| Pin 2 | RPB1/RF1/AN1 — Remappable I/O / analog input 1 |
| Pin 3 | RPB2/SCL2/AN4 — Remappable I/O / I2C2 clock / analog input 4 |
| Pin 4 | RPB3/SDA2/AN5 — Remappable I/O / I2C2 data / analog input 5 |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RPB4/RB4 — Remappable I/O, change notification capable |
| Pin 7 | RPB5/RB5 — Remappable I/O, change notification capable |
| Pin 8 | RPB6/RB6 — Remappable I/O, change notification capable |
| Pin 9 | RPB7/RB7 — Remappable I/O, change notification capable |
| Pin 10 | VDD — Positive supply (2.3 V to 3.6 V) |
| Pin 11 | RA0/RPA0 — Remappable I/O |
| Pin 12 | RA1/RPA1 — Remappable I/O |
| Pin 13 | RA2/RPA2 — Remappable I/O |
| Pin 14 | RA3/RPA3 — Remappable I/O |
| Pin 15 | RA4/RPA4 — Remappable I/O |
| Pin 16 | RA5/RPA5 — Remappable I/O |
| Pin 17 | RA6/RPA6 — Remappable I/O |
| Pin 18 | RA7/RPA7 — Remappable I/O |
| Pin 19 | VSS — Ground reference |
| Pin 20 | AVDD — Analog positive supply (2.3 V to 3.6 V) |
| Pin 21 | AVSS — Analog ground |
| Pin 22 | OSC1/CLKI/RA8 — Crystal input / external clock / I/O |
| Pin 23 | OSC2/CLKO/RA9 — Crystal output / system clock out / I/O |
| Pin 24 | RPB8/RB8 — Remappable I/O |
| Pin 25 | RPB9/RB9 — Remappable I/O |
| Pin 26 | RPB10/RB10 — Remappable I/O |
| Pin 27 | RPB11/RB11 — Remappable I/O |
| Pin 28 | RPB12/RB12 — Remappable I/O |
Typical Applications
PIC32MX150F128B-V/SP is suitable for 6 applications: USB Audio Device, Graphics HMI with PMP, Capacitive Touch Interface, Industrial Control with On-chip Temperature, Low-cost 32-bit Upgrade from 16-bit Designs, Battery-powered Data Logger.
USB Audio Device
The PIC32MX150F128B-V/SP fits USB audio applications because its integrated USB 2.0 full-speed OTG controller handles USB protocol without an external PHY, and the dual I2S/SPI modules interface directly to stereo audio codecs. With 128 KB Flash and 32 KB SRAM, the part can run a USB Audio Class 1.0 stack with mixing and effect processing, while active current under 0.5 mA/MHz at 40 MHz keeps total power near 20 mA. The 28-SPDIP through-hole package simplifies prototyping of bench-top USB DACs and headphone adapters.
Recommended
Graphics HMI with PMP
The PIC32MX150F128B-V/SP is well suited for graphical HMI panels thanks to its Parallel Master Port (PMP), which can directly drive 8080/6800-mode graphical LCDs up to QVGA without an external controller. The 40 MHz MIPS M4K core delivers 40 DMIPS, enough to refresh a 320x240 TFT and run a touch UI loop with sub-30 ms latency. PPS (Peripheral Pin Select) allows flexible routing of the PMP data lines to any digital I/O, easing PCB layout of compact 28-SPDIP through-hole designs where display connectors share board space.
Recommended
Capacitive Touch Interface
The PIC32MX150F128B-V/SP excels at capacitive touch interfaces because the on-chip CTMU (Charge Time Measurement Unit) provides 1 ns time resolution and supports Microchip's mTouch library for buttons, sliders, and proximity sensing. Hardware-driven charge timing eliminates CPU-intensive polling, freeing the MIPS M4K core for communication and logic tasks. Combined with the on-chip temperature sensor for touch-sensitivity compensation, the part delivers robust touch UIs in appliances, industrial panels, and consumer devices.
Recommended
Industrial Control with On-chip Temperature
The PIC32MX150F128B-V/SP suits industrial controllers thanks to its V-grade -40C to +105C operating range and on-chip temperature sensor that monitors internal die temperature without an external diode. 21 general-purpose I/O pins drive relays, MOSFETs, and isolation interfaces; 128 KB Flash runs control loops, Modbus RTU stacks, and safety routines. Active current below 0.5 mA/MHz at 40 MHz keeps board thermal rise minimal in enclosed industrial cabinets where ambient is already elevated.
Recommended
Low-cost 32-bit Upgrade from 16-bit Designs
The PIC32MX150F128B-V/SP is ideal for replacing legacy 16-bit PIC24 and dsPIC designs that are running out of MIPS or memory, because it shares the same 28-SPDIP footprint and Microchip MPLAB X toolchain. The 32-bit MIPS M4K core delivers roughly 4x the MIPS per MHz of a comparable 16-bit PIC24, while 128 KB Flash and 32 KB SRAM absorb growth in firmware size. Pin-compatible migration simplifies mechanical retrofit and avoids PCB rework for cost-sensitive industrial and appliance retrofits.
Recommended
Battery-powered Data Logger
The PIC32MX150F128B-V/SP fits battery-powered data loggers because its active current under 0.5 mA/MHz at 40 MHz, plus multiple low-power sleep modes, keep idle drain low. 32 KB SRAM buffers sensor samples before batch writes, and 128 KB Flash stores weeks of logs. The on-chip temperature sensor enables environmental logging without external components, while PPS remaps peripheral pins to share the same MCU footprint across multiple board revisions in portable instrumentation.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX150F128B-V/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX150F128B-I/SP | PIC32MX150F128B-I/ML | PIC32MX130F256B-V/SP | PIC32MX130F064B-V/SP | PIC32MX170F256B-V/SP |
|---|---|---|---|---|---|---|
| Package | 28-SPDIP | 28-SPDIP - same | 28-QFN (6x6) | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 128 KB (same) | 256 KB (+100%) | 64 KB (-50%) | 256 KB (+100%) | |
| RAM | 32 KB | 32 KB (same) | 32 KB (same) | 8 KB (-75%) | 32 KB (same) | |
| Max CPU Speed | 40 MHz | 40 MHz (same) | 40 MHz (same) | 40 MHz (same) | 40 MHz (same) | |
| Operating Temperature | -40C to +105C (V) | -40C to +85C (I) | -40C to +105C (V) | -40C to +105C (V) | -40C to +105C (V) | |
| Core | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | |
| PPS | Yes | Yes | Yes | Yes | Yes | |
| USB | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | |
| I/O Pins | 21 | 21 | 21 | 21 | 21 |
Key Differentiators
- Pin-compatible upgrade path with more memory (vs PIC32MX130F256B-V/SP)
- On-chip CTMU for capacitive touch (vs PIC24HJ64GP502-I/SP (16-bit))
- Same-die I grade available for cost-down (vs PIC32MX150F128B-I/SP)
Design Notes
Decouple all four VDD pins (pin 10 and analog AVDD on pin 20) with a 0.1 uF ceramic plus a 10 uF bulk capacitor placed within 5 mm of the IC. According to the Microchip PIC32MX1XX/2XX datasheet, USB operation requires both VBUS sense and 3.3 V regulator stability; bypassing prevents VDD droop during USB packet transmission which can cause enumeration failures.
Use a 4-layer PCB for USB designs, with a continuous ground plane under the device and the VBUS trace impedance-controlled to 90 ohms differential per USB 2.0 specification. Keep crystal traces short (<10 mm) and surrounded by ground to minimize EMI; place the 12 MHz or 8 MHz crystal within 5 mm of OSC1/OSC2. Use PPS (Peripheral Pin Select) to remap USB D+/D- to convenient PCB-side pins and keep them adjacent to the connector.
Do not confuse the V grade (-40C to +105C) with the I grade (-40C to +85C) when ordering; the V variant is typically 10-20% more expensive. Ensure the configuration bits set the correct oscillator mode (HS with PLL for 40 MHz operation) and enable JTAG pins only if debug access is required - otherwise configure as GPIO to free two extra I/O pins. Forgetting to lock the configuration bits after programming leaves the device vulnerable to source-code readback.
Estimated: at 40 MHz with 3.3 V supply and active current under 0.5 mA/MHz, internal dissipation is approximately 40 MHz * 3.3 V * 0.5 mA/MHz = 66 mW - well within the 28-SPDIP package's thermal limit. V-grade +105C operation typically requires no heatsink in still air, but enclosed industrial cabinets at 85C ambient may need airflow or derating to 32 MHz.
Compliance Information
RoHS and lead-free confirmed by DigiKey/Mouser listings; AEC-Q100 not qualified - the V grade is industrial (-40C to +105C), not automotive. For automotive designs, use AEC-Q100 qualified PIC32MX variants explicitly.
