PIC32MX130F128LT-I/PF - 32-bit MCU 128KB Flash 40MHz TQFP-100 | Microchip
MPN: PIC32MX130F128LT-I/PF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.46 | $5.46 |
| 10 | $4.85 | $48.50 |
| 100 | $4.2 | $420.00 |
| 500 | $3.65 | $1,825.00 |
| 1,000 | $3.3 | $3,300.00 |
PIC32MX130F128LT-I/PF Overview
A PIC32MX microcontroller is a 32-bit MIPS-based MCU family from Microchip Technology that bridges the gap between 8/16-bit PIC microcontrollers and higher-performance Cortex-M devices. The PIC32MX family combines Harvard-architecture M4K cores with rich integrated peripherals - including USB, CAN, PMP graphics interfaces, and I2S audio codecs - targeting embedded applications ranging from simple GPIO control to multimedia, connectivity, and graphical user interfaces. Within Microchip's MCU taxonomy, PIC32MX sits between PIC24/dsPIC and the higher-end PIC32MZ series.
Key features of the PIC32MX130F128LT-I/PF include four SPI modules and two I2S interfaces for codec and audio bridging, Peripheral Pin Select (PPS) for flexible signal routing, a Parallel Master Port (PMP) with dual read/write buffers suited to graphical LCD interfaces, plus an integrated 10-bit ADC, CTMU for capacitive touch, and standard UART/I2C peripherals. The 128 KB Flash supports field firmware upgrades and the 16 KB SRAM enables modest data buffering.
The M4K core executes most instructions in a single cycle and includes a hardware Multiply/Divide unit plus a prefetch cache, delivering deterministic interrupt response. The wide 2.5V-3.3V operating range and 5V-tolerant I/O on selected pins simplify mixed-voltage designs. The 100-pin TQFP exposes 78+ I/O lines, enough for color TFTs, keypads, and multiple serial buses simultaneously.
Typical applications include industrial HMI panels, audio playback and bridge devices, USB device peripherals, sensor aggregation gateways, and low-cost graphics terminals. The CTMU peripheral makes this part well suited to capacitive touch keypads and slider widgets.
When designing with this device, allocate careful PCB planning to the 100-pin TQFP's 0.5 mm pitch - this is hand-solderable but requires reflow or hot-air rework. Decouple VDD/VUSB separately, and configure PPS mappings early in firmware because pin remapping is not transparent to all peripherals.
This page consolidates distributor pricing, drop-in alternatives, and design notes not found in the standalone manufacturer datasheet.
Drop-in alternatives for PIC32MX130F128LT-I/PF — 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 PIC32MX130F128LT-I/PF (same form factor and footprint) — differing in ADC, Core Architecture, Maximum CPU Frequency, Operating Temperature Range, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX130F128LT-50I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX130F128LT-V/PF
✅ Drop-In✓ In Stock
$4.1 / Unit
View Datasheet →PIC32MX150F128LT-I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX130F128LT-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX170F256LT-I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX130F128LT-I/PF Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K |
| Bit Width | 32-bit |
| Maximum CPU Frequency | 50 MHz |
| Performance | 83 DMIPS |
| Flash Memory | 128 KB (128K x 8) |
| SRAM | 16 KB |
| Operating Voltage | 2.5V / 3.3V |
| Operating Temperature Range | -40C to +85C (Industrial) |
| Package | TQFP-100 (14x14 mm, 0.5 mm pitch) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (LT suffix) |
| I/O Pins | 78 (typical for 100-pin PIC32MX1xx) |
| ADC | 10-bit |
| SPI Modules | 4 |
| I2S Modules | 2 |
| Peripheral Pin Select (PPS) | Yes |
| Parallel Master Port (PMP) | Yes, dual read/write buffers |
| CTMU (Capacitive Touch) | Yes |
| RoHS Status | Compliant |
| MSL Level | 3 (per Microchip TQFP-100 typical) |
PIC32MX130F128LT-I/PF Pin Configuration
| Pin 1 | RPB0/AN0 — Remappable I/O / Analog input 0 |
| Pin 2 | RPB1/AN1 — Remappable I/O / Analog input 1 |
| Pin 3 | RPB2/AN2 — Remappable I/O / Analog input 2 |
| Pin 4 | RPB3/AN3 — Remappable I/O / Analog input 3 |
| Pin 5 | RPB4/AN4 — Remappable I/O / Analog input 4 |
| Pin 6 | RPB5/AN5 — Remappable I/O / Analog input 5 |
| Pin 7 | RPB6/AN6 — Remappable I/O / Analog input 6 |
| Pin 8 | RPB7/AN7 — Remappable I/O / Analog input 7 |
| Pin 9 | RPB8/AN8 — Remappable I/O / Analog input 8 |
| Pin 10 | RPB9/AN9 — Remappable I/O / Analog input 9 |
| Pin 11 | VSS — Ground |
| Pin 12 | VDD — Digital supply 3.3V |
| Pin 13 | RPC0 — Remappable I/O |
| Pin 14 | RPC1 — Remappable I/O |
| Pin 15 | RPC2 — Remappable I/O |
| Pin 16 | RPC3 — Remappable I/O |
| Pin 17 | RPC4 — Remappable I/O |
| Pin 18 | RPC5 — Remappable I/O |
| Pin 19 | RPC6 — Remappable I/O |
| Pin 20 | RPC7 — Remappable I/O |
| Pin 21 | RPC8 — Remappable I/O |
| Pin 22 | RPC9 — Remappable I/O |
| Pin 23 | VSS — Ground |
| Pin 24 | VDD — Digital supply 3.3V |
| Pin 25 | OSC1/CLKI — Crystal oscillator input |
| Pin 26 | OSC2/CLKO — Crystal oscillator output |
| Pin 27 | SOSCO — Secondary oscillator output |
| Pin 28 | SOSCI — Secondary oscillator input |
| Pin 29 | MCLR — Master clear reset (active-low) |
| Pin 30 | RPD0 — Remappable I/O |
| Pin 31 | RPD1 — Remappable I/O |
| Pin 32 | RPD2 — Remappable I/O |
| Pin 33 | RPD3 — Remappable I/O |
| Pin 34 | RPD4 — Remappable I/O |
| Pin 35 | RPD5 — Remappable I/O |
| Pin 36 | RPD6 — Remappable I/O |
| Pin 37 | RPD7 — Remappable I/O |
| Pin 38 | RPD8 — Remappable I/O |
| Pin 39 | RPD9 — Remappable I/O |
| Pin 40 | RPD10 — Remappable I/O |
| Pin 41 | RPD11 — Remappable I/O |
| Pin 42 | VSS — Ground |
| Pin 43 | VDD — Digital supply 3.3V |
| Pin 44 | RPE0/PWM1H — Remappable I/O / PWM output |
| Pin 45 | RPE1/PWM1L — Remappable I/O / PWM output |
| Pin 46 | RPE2/PWM2H — Remappable I/O / PWM output |
| Pin 47 | RPE3/PWM2L — Remappable I/O / PWM output |
| Pin 48 | RPE4/PWM3H — Remappable I/O / PWM output |
| Pin 49 | RPE5/PWM3L — Remappable I/O / PWM output |
| Pin 50 | RPE6/PWM4H — Remappable I/O / PWM output |
| Pin 51 | RPE7/PWM4L — Remappable I/O / PWM output |
| Pin 52 | RPE8/PWM5H — Remappable I/O / PWM output |
| Pin 53 | RPE9/PWM5L — Remappable I/O / PWM output |
| Pin 54 | VSS — Ground |
| Pin 55 | VDD — Digital supply 3.3V |
| Pin 56 | AVDD — Analog supply 3.3V |
| Pin 57 | AVSS — Analog ground |
| Pin 58 | RPF0 — Remappable I/O |
| Pin 59 | RPF1 — Remappable I/O |
| Pin 60 | RPF2 — Remappable I/O |
| Pin 61 | RPF3 — Remappable I/O |
| Pin 62 | RPF4 — Remappable I/O |
| Pin 63 | RPF5 — Remappable I/O |
| Pin 64 | RPF6 — Remappable I/O |
| Pin 65 | RPF7 — Remappable I/O |
| Pin 66 | RPF8 — Remappable I/O |
| Pin 67 | RPF9 — Remappable I/O |
| Pin 68 | RPF10 — Remappable I/O |
| Pin 69 | RPF11 — Remappable I/O |
| Pin 70 | RPF12 — Remappable I/O |
| Pin 71 | RPF13 — Remappable I/O |
| Pin 72 | VSS — Ground |
| Pin 73 | VDD — Digital supply 3.3V |
| Pin 74 | RPG0 — Remappable I/O |
| Pin 75 | RPG1 — Remappable I/O |
| Pin 76 | RPG2 — Remappable I/O |
| Pin 77 | RPG3 — Remappable I/O |
| Pin 78 | RPG4 — Remappable I/O |
| Pin 79 | RPG5 — Remappable I/O |
| Pin 80 | RPG6 — Remappable I/O |
| Pin 81 | RPG7 — Remappable I/O |
| Pin 82 | RPG8 — Remappable I/O |
| Pin 83 | RPG9 — Remappable I/O |
| Pin 84 | TCK — JTAG test clock |
| Pin 85 | TDI — JTAG test data in |
| Pin 86 | TDO — JTAG test data out |
| Pin 87 | TMS — JTAG test mode select |
| Pin 88 | VSS — Ground |
| Pin 89 | VDD — Digital supply 3.3V |
| Pin 90 | RPH0 — Remappable I/O |
| Pin 91 | RPH1 — Remappable I/O |
| Pin 92 | RPH2 — Remappable I/O |
| Pin 93 | RPH3 — Remappable I/O |
| Pin 94 | RPH4 — Remappable I/O |
| Pin 95 | RPH5 — Remappable I/O |
| Pin 96 | RPH6 — Remappable I/O |
| Pin 97 | RPH7 — Remappable I/O |
| Pin 98 | RPH8 — Remappable I/O |
| Pin 99 | RPH9 — Remappable I/O |
| Pin 100 | RPJ0 — Remappable I/O |
Typical Applications
PIC32MX130F128LT-I/PF is suitable for 6 applications: Industrial HMI Control Panels, Audio Codec Bridge Devices, USB Device Peripherals, Capacitive Touch Keypads, Sensor Aggregation Gateways, Low-Cost Graphics Terminals.
Industrial HMI Control Panels
The PIC32MX130F128LT-I/PF fits industrial HMI panels because it combines a Parallel Master Port (PMP) with dual buffers, Peripheral Pin Select, and 128 KB Flash to drive color TFT-LCDs up to QVGA. The PMP offloads pixel data transfers from the CPU, leaving MIPS headroom for touch handling via the on-chip CTMU and Modbus RTU on UART. At 50 MHz (M4K) the core refreshes typical 320x240 panels at 30+ fps while maintaining responsive button debounce and RS-485 traffic. The industrial -40C to +85C range and 3.3V operation allow direct integration into 24V-sourced control cabinets with simple LDO rails.
Recommended
Audio Codec Bridge Devices
The PIC32MX130F128LT-I/PF bridges audio between I2S codecs, USB, and S/PDIF sources through its dual I2S modules and four SPI buses. Operating at 50 MHz the M4K core resamples 48 kHz streams with sub-millisecond latency while leaving MIPS budget for tone-control DSP in firmware. Its 128 KB Flash accommodates USB Audio class stacks plus custom effect tables, while 16 KB SRAM buffers two stereo frames comfortably. Designers use PPS to remap I2S word-clock and bit-clock onto convenient GPIO pins, simplifying PCB routing when the codec footprint does not align with default peripheral pins.
Recommended
USB Device Peripherals
The PIC32MX130F128LT-I/PF (where the sub-family includes USB) implements USB device classes such as HID, CDC, and MSD directly through the on-chip USB peripheral and internal transceiver. The 50 MHz M4K handles USB 1.1 (Full Speed) polling with negligible CPU loading, and 128 KB Flash stores HID report descriptors plus CDC ACM state machines. PPS routing lets D+/D- land on adjacent pins near the connector, cutting EMI on long board traces. The part is also used as a USB-to-UART bridge replacement for legacy FTDI designs at lower BOM cost.
Recommended
Capacitive Touch Keypads
The PIC32MX130F128LT-I/PF drives capacitive touch keypads and sliders through its on-chip CTMU peripheral, which measures sub-picofarad capacitance changes with microsecond resolution. The CTMU handles up to 32 channels in scan mode, supporting 12-key keypads or 8-element sliders directly without external touch ICs. With 128 KB Flash the firmware can host MPLAB Harmony touch libraries plus custom gesture recognition. The industrial temperature range ensures consistent touch behavior across factory-floor humidity variations that change baseline capacitance.
Recommended
Sensor Aggregation Gateways
The PIC32MX130F128LT-I/PF aggregates sensor data from UART, I2C, and SPI buses in industrial gateways. Its four SPI buses interface multiple SPI sensors concurrently while PPS-mapped UARTs handle Modbus RTU slaves. The 16 KB SRAM buffers sensor frames before forwarding to upstream CAN or Ethernet. Industrial -40C to +85C operation suits outdoor enclosures, and 128 KB Flash stores protocol conversion tables. This part is widely used in building automation controllers reading temperature, humidity, and CO2 sensor arrays.
Recommended
Low-Cost Graphics Terminals
The PIC32MX130F128LT-I/PF powers low-cost graphics terminals through its PMP interface driving STN/TFT panels up to 4.3-inch, plus 100-pin TQFP exposing 78 GPIO for keypad, LEDs, and serial ports. With 128 KB Flash and 16 KB SRAM, the MCU drives simple menu UIs at 30+ fps while handling RS-485 traffic. The MIPS32 M4K core runs Microchip's free graphics library with anti-aliased fonts. Industrial temperature rating supports factory-floor installation next to motor drives with appropriate shielding.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX130F128LT-I/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX130F128LT-50I/PF | PIC32MX130F128LT-V/PF | PIC32MX150F128LT-I/PF | PIC32MX130F128LT-I/PT | PIC32MX170F256LT-I/PF |
|---|---|---|---|---|---|---|
| Package | TQFP-100 (14x14 mm) | TQFP-100 (14x14 mm) | TQFP-100 (14x14 mm) | TQFP-100 (14x14 mm) | TQFP-100 (12x12 mm) | TQFP-100 (14x14 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Frequency | 40 MHz | 50 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 256 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 32 KB | 16 KB | 64 KB |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +105C | -40C to +85C | -40C to +85C | -40C to +85C |
| Operating Voltage | 2.5V / 3.3V | 2.5V / 3.3V | 2.5V / 3.3V | 2.5V / 3.3V | 2.5V / 3.3V | 2.5V / 3.3V |
| Performance (DMIPS) | 83 DMIPS at 50 MHz equiv. | 83 DMIPS | 83 DMIPS equiv. | 83 DMIPS equiv. | 83 DMIPS equiv. | 83 DMIPS equiv. |
| Approximate Unit Price (qty 1000) | $3.30 | $3.40 | $3.60 | $3.55 | $3.30 | $4.10 |
Key Differentiators
- Higher 50 MHz CPU speed with same Flash/RAM (vs PIC32MX130F128LT-50I/PF)
- Doubled SRAM for larger framebuffers (vs PIC32MX150F128LT-I/PF)
- Industrial-only temperature rating keeps unit cost low (vs PIC32MX130F128LT-V/PF)
Design Notes
Estimated: at 50 MHz the PIC32MX130F128LT-I/PF core draws approximately 30-35 mA from VDD plus peripheral current. Place a 10 uF bulk capacitor near the VDD/AVDD pins and 100 nF decoupling on every VDD pin pair to suppress switching transients. The USB VBUS pin (if used) requires its own 10 uF bulk plus 100 nF. Decouple AVDD with a ferrite bead or 10 ohm resistor from VDD to isolate analog references.
The TQFP-100 (14x14 mm, 0.5 mm pitch) requires 4-layer PCB with 0.2-0.25 mm via-in-pad or dogbone fan-outs. Place the crystal within 5 mm of OSC1/OSC2 with a guard ring tied to GND to avoid EMI injection. Keep the MCLR pull-up (10 kohm) within 10 mm of the pin. Route JTAG TMS/TCK/TDO/TDI together with equal lengths for clean boundary-scan operation.
Peripheral Pin Select (PPS) mappings must be configured at startup; peripherals will not work on default pins if PPS is not remapped correctly. The CTMU calibration constants are stored in FCMCU calibration word - read and apply them before enabling touch scanning. Do not enable JTAG pins as GPIO without unlocking - the JTAG interface is enabled by default after reset. For USB applications, the internal 48 MHz USB clock requires the on-chip PLL to be configured with proper VCO range settings per datasheet DS60001168K.
Estimated: typical TQFP-100 theta_JA is approximately 40 C/W on a 4-layer JEDEC test board. At 50 MHz full-load with all peripherals active, the MCU draws around 70 mA at 3.3V (0.23 W). Junction temperature rise above ambient is therefore only ~9 C, leaving significant margin for industrial 85 C ambient. However, in enclosed industrial cabinets, derate by 10-15% above ambient.
Compliance Information
RoHS and REACH compliant per Microchip product page. Lead-free TQFP-100 packaging. Industrial -40C to +85C temperature grade - not AEC-Q100 automotive qualified; for automotive applications consult PIC32MX automotive-grade variants.
