PIC32MX230F064CT-I/TL - 32-bit MCU, 64KB Flash, 40MHz | Microchip
MPN: PIC32MX230F064CT-I/TL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.95 | $3.95 |
| 10 | $3.55 | $35.50 |
| 100 | $3.18 | $318.00 |
| 500 | $2.84 | $1,420.00 |
| 1,000 | $2.52 | $2,520.00 |
PIC32MX230F064CT-I/TL Overview
A 32-bit microcontroller (MCU) is a single-chip computer that executes 32-bit instructions in a single clock cycle, providing significantly higher throughput than 8-bit or 16-bit alternatives while retaining deterministic interrupt response. PIC32MX devices sit in the PIC32 family hierarchy of MCU -> 32-bit MCU -> MIPS-based MCU -> Microchip PIC32MX sub-family, targeting cost-sensitive embedded applications that need USB, graphics, or richer peripherals than 8-bit PIC MCUs but do not require the higher pin counts of PIC32MZ.
Key features of the PIC32MX230F064CT-I/TL include 64 KB Flash with 1 KB auxiliary Flash, 16 KB SRAM, an 8 MHz internal oscillator with PLL support up to 40 MHz, an on-chip 1.5% accurate 32 kHz RTCC oscillator, and a Charge Time Measurement Unit for touch or general time measurement. The 36-pin VTLA package offers a compact footprint suitable for space-constrained designs, and the industrial temperature range supports operation from -40C to +85C. Code protection, JTAG and 2-wire programming interfaces provide flexible in-system programming and debugging options for production environments.
The PIC32MX230 uses a 5-stage pipeline MIPS32 M4K core with single-cycle multiplication, providing 1.56 DMIPS/MHz and a deterministic interrupt latency of approximately 5 cycles. The PIC32MX architecture supports 32-bit instructions and aligned 32-bit data, allowing efficient C code execution. The peripheral set is connected via a multi-channel DMA controller and a peripheral bus matrix, reducing CPU overhead for data movement. USB 2.0 full-speed device/host/OTG support, combined with the CTMU, makes this family well suited to human-interface and connectivity designs.
Typical applications include USB peripherals, capacitive touch keypads, low-cost graphics LCDs, sensor hubs, and small appliances. The compact 36-pin VTLA package and integrated USB make it a strong fit for compact devices requiring on-board connectivity. The PIC32MX230 is commonly paired with Microchip's MPLAB Harmony and XC32 toolchain for firmware development.
A critical design consideration is signal integrity on the 5x5 mm VTLA package: maintain a solid ground plane beneath the exposed pad and route high-speed USB differential pairs (D+/D-) with 90 ohm differential impedance. Decouple VDDCORE and VDDIO pins with 100 nF X7R ceramics placed within 3 mm of each pin. Avoid running switching signals directly under the device to minimise crosstalk on the analog ADC inputs.
Drop-in alternatives for PIC32MX230F064CT-I/TL — 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 PIC32MX230F064CT-I/TL (same form factor and footprint) — differing in ADC, DMA Channels, Package, Timers, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX230F064C-I/TL
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View Datasheet →PIC32MX130F064CT-I/TL
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View Datasheet →PIC32MX220F032DT-I/TL
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View Datasheet →PIC32MX150F128CT-I/TL
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View Datasheet →PIC32MX170F256D-I/TL
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View Datasheet →PIC32MX230F064CT-I/TL Maximum Ratings & Electrical Characteristics
| Core | MIPS32 M4K (32-bit RISC) |
| Operating Frequency (Max) | 40 MHz |
| Flash Program Memory | 64 KB (64K x 8) |
| SRAM | 16 KB |
| Auxiliary Flash | 1 KB |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| I/O Pins | 23 |
| ADC | 10-bit, up to 9 channels, 200 ksps |
| Timers | 3 x 16-bit (Timer1/Timer2/Timer3) + 1 x 16-bit (Timer4/Timer5 with Input Capture) |
| UART | 4 |
| SPI | 2 |
| I2C | 2 |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| CTMU | Charge Time Measurement Unit (touch / time) |
| DMA | 4-channel |
| Package | 36-VTLA (5x5 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC32MX230F064CT-I/TL Pin Configuration
| Pin 1 | RPB0/RB0 — Remappable peripheral I/O / GPIO RB0 |
| Pin 2 | RPB1/RB1 — Remappable peripheral I/O / GPIO RB1 |
| Pin 3 | RPB2/RB2 — Remappable peripheral I/O / GPIO RB2 |
| Pin 4 | RPB3/RB3 — Remappable peripheral I/O / GPIO RB3 |
| Pin 5 | VSS — Ground |
| Pin 6 | RPB4/RB4 — Remappable peripheral I/O / GPIO RB4 |
| Pin 7 | RPB5/RB5 — Remappable peripheral I/O / GPIO RB5 |
| Pin 8 | RPB6/RB6 — Remappable peripheral I/O / GPIO RB6 (PGEC2/IC1) |
| Pin 9 | RPB7/RB7 — Remappable peripheral I/O / GPIO RB7 (PGED2/IC2) |
| Pin 10 | RPB8/RB8 — Remappable peripheral I/O / GPIO RB8 |
| Pin 11 | RPB9/RB9 — Remappable peripheral I/O / GPIO RB9 |
| Pin 12 | VDD — I/O supply voltage 2.3V-3.6V |
| Pin 13 | VSS — Ground |
| Pin 14 | RPA0/RA0 — GPIO RA0 |
| Pin 15 | RPA1/RA1 — GPIO RA1 |
| Pin 16 | RPA2/RA2 — GPIO RA2 |
| Pin 17 | RPA3/RA3 — GPIO RA3 |
| Pin 18 | VDDCORE — Internal regulator output (1.8V typical) - decouple 10uF |
| Pin 19 | VSS — Ground |
| Pin 20 | RA4/RP8 — GPIO RA4 / remappable peripheral |
| Pin 21 | RA5/RP9 — GPIO RA5 / remappable peripheral |
| Pin 22 | RA6/RP10 — GPIO RA6 / remappable peripheral |
| Pin 23 | RA7/RP11 — GPIO RA7 / remappable peripheral |
| Pin 24 | RA8/RP12 — GPIO RA8 / remappable peripheral |
| Pin 25 | RA9/RP13 — GPIO RA9 / remappable peripheral |
| Pin 26 | RA10/RP14 — GPIO RA10 / remappable peripheral |
| Pin 27 | VSS — Ground |
| Pin 28 | VDD — I/O supply voltage 2.3V-3.6V |
| Pin 29 | RC1/RP17 — GPIO RC1 / remappable peripheral |
| Pin 30 | RC2/RP18 — GPIO RC2 / remappable peripheral |
| Pin 31 | RC3/RP19 — GPIO RC3 / remappable peripheral |
| Pin 32 | RC4/RP20 — GPIO RC4 / remappable peripheral |
| Pin 33 | USBID/RP13 — USB OTG ID pin / remappable peripheral |
| Pin 34 | VUSB3V3 — USB 3.3V internal regulator - decouple |
| Pin 35 | D- — USB D- differential data line |
| Pin 36 | D+ — USB D+ differential data line |
Typical Applications
PIC32MX230F064CT-I/TL is suitable for 6 applications: USB HID Peripheral Devices, Capacitive Touch Keypads, Low-Cost Graphics LCD Modules, Sensor Hubs and Data Loggers, Home Appliance Control Boards, USB-to-UART/SPI/I2C Bridge Adapters.
USB HID Peripheral Devices
The PIC32MX230F064CT-I/TL's integrated USB 2.0 Full-Speed Device/Host/OTG controller with on-chip transceiver makes it an ideal fit for USB HID peripherals such as keyboards, mice, custom joysticks, and barcode scanners. The 40 MHz MIPS M4K core delivers 1.56 DMIPS/MHz - more than enough for USB polling, HID report assembly, and matrix scanning without dropping frames. The 16 KB SRAM is sufficient for HID report buffers plus a small RTOS or scheduler. Placed on the PCB with 90 ohm differential D+/D- routing and an ESD array, the MCU replaces an external USB controller chip plus 8-bit companion MCU - cutting BOM cost. The 36-pin VTLA 5x5 mm footprint keeps the PCB small for compact peripherals.
Recommended
Capacitive Touch Keypads
The PIC32MX230F064CT-I/TL integrates the Charge Time Measurement Unit (CTMU) which, combined with the 10-bit ADC, scans capacitive touch sensors without external touch ICs. The CTMU delivers sub-pF resolution and supports up to 9 touch channels on the 36-pin package. Designers can implement up to 9 buttons or a small slider without an additional IC, lowering BOM cost in appliance, lighting, and consumer-electronics applications. The 40 MHz core handles debounce, gestures, and backlight control without taxing CPU budget. Industrial -40C to +85C operation covers outdoor and appliance environments. MPLAB Harmony's touch library streamlines firmware development and supports auto-calibration for production tolerances.
Recommended
Low-Cost Graphics LCD Modules
The PIC32MX230F064CT-I/TL drives small QVGA (320x240) TFT LCDs via its parallel PMP interface at low frame rates while offloading pixel movement to the 4-channel DMA. 16 KB SRAM holds one full display line buffer plus a framebuffer for monochrome or low-color-depth panels, sufficient for monochrome OLEDs, small TFTs, and character LCDs. The 40 MHz core achieves 5-10 fps update rates on 128x64 graphical OLEDs, and the CTMU enables touch input on integrated panels. Compact 36-pin VTLA packages fit behind small displays, ideal for HMI panels on appliances, instrumentation, and IoT control surfaces.
Recommended
Sensor Hubs and Data Loggers
The PIC32MX230F064CT-I/TL's 4-channel DMA, multiple UART/SPI/I2C peripherals, and 10-bit ADC make it a strong fit for sensor hubs aggregating multiple sensors (temperature, pressure, IMU) and logging to serial flash or USB. The 64 KB Flash stores sensor fusion code plus a small filesystem, while 16 KB SRAM holds sample buffers. The 40 MHz MIPS core runs basic DSP filters (low-pass, averaging) without breaking a sweat, while the RTCC with 32 kHz oscillator supports timestamping in battery-backed data loggers. Industrial temperature range supports outdoor and industrial deployments, and the compact 36-pin VTLA package fits space-constrained remote nodes.
Recommended
Home Appliance Control Boards
The PIC32MX230F064CT-I/TL's industrial -40C to +85C temperature range, 23 GPIO, three 16-bit timers (for motor/sensor/PWM control), and CTMU touch sensing make it well suited to home appliance control boards such as coffee machines, microwaves, washing machines, and induction cooktops. The 40 MHz core handles keypad scanning, BLDC/PMSM motor commutation via hardware PWM, and USB diagnostics ports. The 64 KB Flash fits appliance firmware plus bootloaders, while 16 KB SRAM supports display buffers and communication stacks. RoHS compliance and Microchip's long-term supply policy support 10+ year appliance production runs.
Recommended
USB-to-UART/SPI/I2C Bridge Adapters
The PIC32MX230F064CT-I/TL is a popular choice for USB-to-serial bridge dongles and USB-to-I2C/SPI protocol converter adapters used in factory test, lab instrumentation, and embedded debugging. The integrated USB 2.0 Full-Speed device controller plus four UART, two SPI, and two I2C interfaces let one MCU bridge USB to any common embedded serial bus, replacing FTDI or Silicon Labs CP210x chips. The 64 KB Flash fits CDC-ACM and vendor-class USB stacks plus bridge firmware. The compact VTLA-36 package fits the smallest USB stick form factors, and the industrial temperature range supports factory-floor use cases.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX230F064CT-I/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX230F064C-I/TL | PIC32MX130F064CT-I/TL | PIC32MX220F032DT-I/TL | PIC32MX150F128CT-I/TL | PIC32MX170F256D-I/TL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 36-VTLA (5x5 mm) | 36-VTLA (5x5 mm) - same | 36-VTLA (5x5 mm) - same | 36-VTLA (5x5 mm) - same | 36-VTLA (5x5 mm) - same | 36-VTLA (5x5 mm) - same |
| Flash Memory | 64 KB | 64 KB | 64 KB | 32 KB (-50%) | 128 KB (+100%) | 256 KB (+300%) |
| SRAM | 16 KB | 16 KB | 16 KB | 8 KB (-50%) | 32 KB (+100%) | 64 KB (+300%) |
| USB 2.0 FS | Yes (Device/Host/OTG) | Yes | No | Yes | No | No |
| Max Clock Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Integrated USB 2.0 Full-Speed Device/Host/OTG with on-chip transceiver (vs PIC32MX130F064CT-I/TL)
- Best price-to-feature ratio for USB-enabled 32-bit PIC MCUs in VTLA-36 (vs PIC32MX170F256D-I/TL)
- Lower BOM cost vs PIC32MX250 family (vs PIC32MX250F128B-I/SP)
- Industrial -40C to +85C temperature range (vs PIC32MX130F064CT-I/TL)
Design Notes
The 36-VTLA package has an exposed thermal pad on the underside that MUST be soldered to a copper pad on the PCB connected to the ground plane. This provides both the chip's primary thermal dissipation path and a low-impedance ground return. Per Microchip's package guidelines, thermal vias in a 3x3 array (0.3 mm drill, 0.6 mm pitch) under the EP are recommended for designs with sustained 40 MHz operation at 85C ambient.
USB D+ and D- traces must be routed as a 90 ohm differential pair with trace length matching within 150 mil (4 mm). Keep the pair length under 50 mm total, and maintain a continuous ground reference plane beneath. Add a 27 ohm series ferrite or zero-ohm resistor on each line near the connector for EMI mitigation, and use a TVS/ESD array (e.g. USBLC6-2) right at the connector to meet IEC 61000-4-2 air-discharge ratings.
Place one 10 uF X7R ceramic bulk capacitor and one 100 nF X7R ceramic decoupling capacitor within 3 mm of each VDD pin (the 36-VTLA has multiple VDD pins at positions 12 and 28). The VDDCORE pin (pin 18) requires a low-ESR 10 uF ceramic capacitor per Microchip datasheet, and VUSB3V3 (pin 34) needs a 10 uF ceramic for the internal USB regulator. Star-ground VDDCORE and VUSB3V3 returns to a single VSS point to avoid digital switching noise coupling into the analog rail.
Do NOT drive the USB D+/D- pins without first configuring the GPIO peripheral mapping (PPS) register and enabling the USB module in the device configuration bits. A common mistake is leaving the JTAG pins (PGEC2/PGED2 on RB6/RB7) enabled in code, which disables RB6/RB7 as user GPIO - configure the JTAG disable fuse bit if not debugging. Also ensure the 48 MHz USB clock source is enabled before USB enumeration, otherwise the host will not detect the device.
Estimated: at 40 MHz, 3.3 V, and full peripheral activity, the core draws approximately 20 mA (~66 mW). The 36-VTLA package has theta_JA around 35 C/W (per Microchip package thermal model), yielding a 2.3 C junction rise above ambient - well within the 85C industrial limit. For continuous USB data transfer with all peripherals active, budget an extra 5-10 mA from VUSB3V3 regulator; ensure the input source can supply the additional ~33 mW.
Compliance Information
RoHS and lead-free confirmed per Microchip product page and distributor listings. AEC-Q100 not applicable (consumer/industrial MCU, not automotive-qualified). REACH compliant per Microchip environmental documentation.