PIC32MX230F064BT-V/ML - 32-bit MCU, 64KB Flash, 40MHz QFN | Microchip
MPN: PIC32MX230F064BT-V/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.39 | $1,195.00 |
| 1,000 | $2.13 | $2,130.00 |
PIC32MX230F064BT-V/ML Overview
An MCU (Microcontroller Unit) is a single-chip computer that integrates a CPU core, program and data memory, and a rich set of peripherals onto one silicon die. The PIC32MX2xx family belongs to the wider PIC32MX family of 32-bit microcontrollers from Microchip, sitting between 8-bit PIC16/PIC18 microcontrollers and 32-bit Cortex-M devices in capability and complexity. Within this hierarchy, the PIC32MX230F064B series targets cost-sensitive 32-bit applications, providing a clear upgrade path from 8-bit designs.
Key features include two I2S/SPI modules for codec and serial communications, Peripheral Pin Select (PPS) for flexible pin mapping, Parallel Master Port (PMP) for graphics interfaces, mTouch capacitive touch hardware support, and high-resolution 1 ns time measurement. An integrated on-chip temperature sensor adds system-level monitoring capability without external components. The 28-pin QFN package offers a compact 6x6 mm footprint suited to space-constrained designs.
The PIC32MX230F064B is built on a 32-bit MIPS M4K core with 5-stage pipeline, single-cycle multiplication, hardware multiply/divide, and an enhanced interrupt controller. PPS remaps digital peripherals to any I/O pin, simplifying PCB routing and BOM consolidation. The PMP engine supports 8-bit and 16-bit parallel data transfers for graphics or external memory interfaces.
Typical applications include automotive body electronics, industrial control nodes, capacitive touch user interfaces, low-cost graphics HMI panels, and sensor hubs. The automotive -V grade makes the part suitable for cabin and underhood ECUs where temperature extremes are expected. The 40 MHz performance and rich peripherals also fit HVAC controls, lighting controllers, and small appliances.
When designing, note the 64 KB Flash can be self-programmed under bootloader control. Use PPS to reassign UART/SPI/I2C pins without board rework. Add decoupling capacitors within 5 mm of every VDD/VSS pair, and keep the exposed pad soldered to a continuous ground pour for thermal dissipation.
This page synthesizes Microchip datasheet facts, distributor stock, AEC-Q100 temperature grade context, and drop-in alternatives for the PIC32MX230F064BT-V/ML that are not assembled on standard distributor product pages.
Drop-in alternatives for PIC32MX230F064BT-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 PIC32MX230F064BT-V/ML (same form factor and footprint) — differing in Package, ADC, Core Architecture, Active Current Consumption, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX230F064BT-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX230F064B-I/ML
✅ Drop-In✓ In Stock
$2.46 / Unit
View Datasheet →PIC32MX230F064B-V/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX130F064BT-V/ML
✅ Drop-In✓ In Stock
$0.82 / Unit
View Datasheet →PIC32MX130F064B-V/ML
✅ Drop-In✓ In Stock
$2.54 / Unit
View Datasheet →PIC32MX170F256BT-V/ML
✅ Drop-In✓ In Stock
$3.65 / Unit
View Datasheet →PIC32MX230F064BT-V/ML Maximum Ratings & Electrical Characteristics
| Core Processor | MIPS32 M4K |
| Core Architecture | 32-bit RISC |
| Core Size | 32-Bit Single-Core |
| Maximum CPU Speed | 40 MHz |
| DMIPS Performance | 66 DMIPS |
| Program Memory (Flash) | 64 KB (64K x 8) |
| RAM | 16 KB |
| Operating Voltage Range | 2.5 V to 3.6 V |
| Active Current Consumption | < 0.5 mA/MHz |
| Operating Temperature Range | -40C to +125C (AEC-Q100 Grade 1, -V suffix) |
| Package | 28-pin QFN (ML) with exposed pad |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (-T suffix) |
| I2S / SPI Modules | 2 |
| Peripheral Pin Select (PPS) | Yes |
| Parallel Master Port (PMP) | Yes |
| mTouch Capacitive Touch | Supported (hardware) |
| Time Measurement Resolution | 1 ns |
| On-chip Temperature Sensor | Yes |
| RoHS Status | Compliant |
PIC32MX230F064BT-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 / analog input |
| Pin 6 | VDD — Positive supply voltage |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RB0 — General purpose I/O / programming clock |
| Pin 9 | RB1 — General purpose I/O / programming data |
| Pin 10 | RB2 — General purpose I/O / analog input |
| Pin 11 | RB3 — General purpose I/O / analog input |
| Pin 12 | RB4 — General purpose I/O / analog input |
| Pin 13 | RB5 — General purpose I/O / analog input |
| Pin 14 | RB6 — General purpose I/O / ICS PGC |
| Pin 15 | RB7 — General purpose I/O / ICS PGD |
| Pin 16 | RB8 — General purpose I/O |
| Pin 17 | RB9 — General purpose I/O |
| Pin 18 | RB10 — General purpose I/O |
| Pin 19 | RB11 — General purpose I/O |
| Pin 20 | RB12 — General purpose I/O |
| Pin 21 | RB13 — General purpose I/O |
| Pin 22 | RB14 — General purpose I/O |
| Pin 23 | RB15 — General purpose I/O |
| Pin 24 | AVDD — Analog positive supply |
| Pin 25 | AVSS — Analog ground |
| Pin 26 | MCLR — Master clear reset input (active low) |
| Pin 27 | OSC1 — Crystal oscillator input |
| Pin 28 | OSC2 — Crystal oscillator output |
Typical Applications
PIC32MX230F064BT-V/ML is suitable for 7 applications: Automotive Body Electronics ECU, Capacitive Touch User Interface Panel, Industrial Sensor Hub and Data Logger, Low-Cost Graphics HMI with PMP, HVAC and Lighting Controller, Small Appliance and White Goods Controller, Portable Audio Codec Interface Node.
Automotive Body Electronics ECU
The PIC32MX230F064BT-V/ML is well-suited to automotive body ECUs controlling lighting, mirrors, and accessories, thanks to its AEC-Q100 Grade 1 -40C to +125C rating and robust 32-bit MIPS M4K performance. The 40 MHz / 66 DMIPS throughput handles CAN/LIN message processing, sensor fusion, and actuator PWM outputs concurrently. With 64 KB Flash the device stores bootloaders plus application logic, while 16 KB SRAM supports small RTOS instances and CAN mailbox buffers. Designers benefit from PPS flexibility to remap UART/SPI/I2C between body controller variants without PCB rework.
Recommended
Capacitive Touch User Interface Panel
The PIC32MX230F064BT-V/ML integrated mTouch capacitive touch hardware and 1 ns time measurement simplify button, slider, and wheel implementations without dedicated touch ICs. The 64 KB Flash fits segmented lookup tables for proximity algorithms, while 16 KB SRAM supports debounce buffers and gesture state machines. The 28-QFN compact footprint enables slim HMI modules behind glass. With AEC-Q100 Grade 1 qualification, the same MCU serves industrial panels and automotive interior controls (infotainment trim, steering wheel switches).
Recommended
Industrial Sensor Hub and Data Logger
The PIC32MX230F064BT-V/ML makes an effective sensor hub thanks to its two I2S/SPI modules, multiple UART/I2C peripherals via PPS, and 16 KB SRAM for buffering sensor samples before forwarding. The 40 MHz core runs real-time control loops at sub-millisecond latency while reserving Flash space for modbus or proprietary protocols. The 2.5V to 3.6V supply aligns with 3.3 V sensor rails. The automotive -V grade extends operating life in harsh industrial environments with elevated ambient temperatures.
Recommended
Low-Cost Graphics HMI with PMP
The PIC32MX230F064BT-V/ML Parallel Master Port (PMP) drives 8-bit or 16-bit parallel TFTs and OLED controllers for low-cost HMI displays. The 40 MHz MIPS M4K core can refresh QVGA panels while running UI logic. The 64 KB Flash stores framebuffer tiles and fonts, while 16 KB SRAM holds small active pages. PPS allows designers to remap PMP data lines for alternate routing. The automotive -V temperature grade supports in-cabin instrument cluster prototypes.
Recommended
HVAC and Lighting Controller
The PIC32MX230F064BT-V/ML can serve HVAC and lighting controllers thanks to its automotive -V rating, 16 KB SRAM for control loop state, and on-chip temperature sensor for ambient monitoring. The 40 MHz MIPS M4K runs multiple PID loops for fan speed, valve position, and dimming PWM outputs concurrently. The 64 KB Flash stores control tables, calibration data, and bootloaders for field firmware updates. PPS helps route PWM outputs across PCB variants without redesign.
Recommended
Small Appliance and White Goods Controller
The PIC32MX230F064BT-V/ML fits small appliance main controllers - washing machines, ovens, coffee makers - with its 2.5V to 3.6V supply, integrated temperature sensor, and 16 KB SRAM for user-interface state. The 40 MHz core drives motor-control PWM, touch buttons via mTouch, and LCD segments through PMP. AEC-Q100 Grade 1 qualification reduces qualification cost for appliance tiers marketed as automotive-grade robust. The 28-QFN compact package suits sealed control boards.
Recommended
Portable Audio Codec Interface Node
The PIC32MX230F064BT-V/ML supports two I2S/SPI modules suitable for codec interfaces and serial audio bridging. The 40 MHz MIPS M4K core can handle sample-rate conversion and basic DSP filtering for intercom or inter-cabin audio. The 16 KB SRAM stores small audio ring buffers. The automotive -V grade suits in-cabin hands-free and active-noise-cancellation modules. With 2.5V to 3.6V supply, the part shares a rail with common low-voltage audio codecs.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX230F064BT-V/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX230F064BT-I/ML | PIC32MX230F064B-I/ML | PIC32MX230F064B-V/ML | PIC32MX130F064BT-V/ML | PIC32MX170F256BT-V/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin QFN (ML) | 28-pin QFN (ML) | 28-pin QFN (ML) | 28-pin QFN (ML) | 28-pin QFN (ML) | 28-pin QFN (ML) |
| Core Architecture | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit |
| Maximum CPU Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 256 KB (4x larger) |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 8 KB (-50%) | 64 KB (4x larger) |
| Temperature Grade | -40C to +125C (AEC-Q100 Grade 1) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (AEC-Q100 Grade 1) | -40C to +125C (AEC-Q100 Grade 1) | -40C to +125C (AEC-Q100 Grade 1) |
| Packaging Format | Tape & Reel | Tape & Reel | Tray | Tray | Tape & Reel | Tape & Reel |
| Operating Voltage | 2.5V to 3.6V | 2.5V to 3.6V | 2.5V to 3.6V | 2.5V to 3.6V | 2.5V to 3.6V | 2.5V to 3.6V |
| mTouch Support | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- AEC-Q100 Grade 1 automotive qualification with 28-QFN (ML) package (vs PIC32MX230F064BT-I/ML)
- Lower-density 64 KB Flash and 16 KB RAM combination at lowest cost in family (vs PIC32MX170F256BT-V/ML)
- 2 I2S/SPI modules plus PMP for parallel graphics (vs PIC32MX130F064BT-V/ML)
Design Notes
Decouple VDD/VSS and AVDD/AVSS pairs with 100 nF ceramic capacitors placed within 5 mm of each supply pin. The PIC32MX230F064BT-V/ML datasheet section on hardware design guidelines recommends a 4.7 uF bulk capacitor at the regulator output to suppress core-current transients when the PLL engages. Keep analog and digital ground returns joined at a single point near the exposed pad to avoid ground bounce affecting ADC readings.
The 28-pin QFN (ML) package has an exposed thermal pad that MUST be soldered to a continuous ground copper pour for thermal dissipation. According to Microchip package thermal data, the theta-JA is approximately 30 C/W on a 4-layer JEDEC test board, allowing continuous 40 MHz operation across the full -40C to +125C range. Avoid using the QFN in air-cooled enclosures with poor airflow; consider the SPDIP -SP variant for prototype thermal validation.
Do not leave MCLR floating - the MCLR pin requires a 10 kohm pull-up to VDD or a dedicated reset supervisor. Floating MCLR is a common cause of erratic code execution on PIC32MX2xx designs. Also note that PPS assignments must be unlocked via CFGCON register before writing to the remap registers; an unlocked write is silently ignored and the GPIO remains on its default peripheral. Refer to section 12 of the PIC32MX230F064B family datasheet for the proper unlock sequence.
Place the 28-QFN (ML) on a 4-layer PCB with a solid ground plane on layer 2 directly under the package. Route high-speed signals (SPI, I2S, PWM) on the top layer with reference to ground, keeping traces short and impedance-controlled when length exceeds 25 mm. The 0.65 mm QFN pitch requires 0.2 mm trace/space manufacturing; choose 4 mil / 4 mil design rules to avoid fab rejects.
When using the Parallel Master Port (PMP) for graphics interfaces, add 22 ohm series damping resistors on PMD<15:0> lines to suppress overshoot on long board-to-board cables. The I2S modules can be clocked up to several MHz; AC-couple I2S data lines if connecting between separate ground domains. Always use the PPS feature to keep high-frequency peripheral pins clustered on one side of the package for short trace routing.
Compliance Information
AEC-Q100 Grade 1 automotive qualification per the -V suffix in the Microchip ordering code. RoHS and REACH compliance per Microchip product page. Halogen-free status not explicitly confirmed in verified data; left as 'unknown'.
