PIC32MX170F512LT-50I/PT - 50MHz 32-bit MCU 512KB Flash | Microchip
MPN: PIC32MX170F512LT-50I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.78 | $57.80 |
| 100 | $5.15 | $515.00 |
| 500 | $4.62 | $2,310.00 |
| 1,000 | $4.1 | $4,100.00 |
| 3,000 | $3.85 | $11,550.00 |
PIC32MX170F512LT-50I/PT Overview
A 32-bit microcontroller (MCU) is an integrated circuit containing a 32-bit CPU core, program memory (typically Flash), data memory (SRAM), and a rich set of on-chip peripherals such as timers, communication controllers, ADCs, and GPIO. Within the taxonomy of embedded processors, a 32-bit MCU sits above 8/16-bit MCUs in computational capability and is commonly used in industrial control, consumer audio, graphics HMI, and connectivity-enabled IoT end nodes where headroom for stacks (TCP/IP, USB) and DSP-style processing is required.
Key features include: two I2S interfaces for audio codec connection, four SPI modules for high-throughput serial peripherals, USB 2.0 full-speed device/host/OTG, a Parallel Master Port (PMP) with dual read/write buffers aimed at small QVGA-class graphics panels, a 10-bit 1 Msps ADC with up to 48 channels, and 5 16-bit timers/counters. The integrated MIPS M4K core is fully supported by MPLAB X IDE, MPLAB Harmony, and the standard PIC32 peripheral library, simplifying firmware portability.
Typical applications include industrial HMI panels, USB-connected data loggers, audio playback/recording devices, low-cost graphics terminals, and general-purpose 32-bit control platforms that benefit from Microchip's mature PIC32 toolchain. For designs requiring the same footprint with different memory or speed grades, the PIC32MX1xx/2xx family provides drop-in compatible variants. The 2.3 V to 3.6 V single-supply operation simplifies power-tree design alongside modern LDO regulators, an important consideration for low-noise analog sections.
When designing with this part, allocate adequate decoupling (100nF + bulk) near each VDD/VSS pair, follow Microchip's QFP PCB layout guidelines for thermal dissipation, and leverage PPS to remap peripherals to convenient pins. Compared to the commercial temperature PIC32MX170F512LT-I/PT (40 MHz max), the -50I variant offers 25% more compute headroom while remaining in the same 100-pin TQFP footprint.
Drop-in alternatives for PIC32MX170F512LT-50I/PT — 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 PIC32MX170F512LT-50I/PT (same form factor and footprint) — differing in ADC, Package, Parallel Master Port (PMP), Core Architecture, SPI Modules.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX170F512L-I/PT
✅ Drop-In✓ In Stock
$4.2 / Unit
View Datasheet →PIC32MX170F512L-50I/PF
✅ Drop-In✓ In Stock
$5.55 / Unit
View Datasheet →PIC32MX170F512HT-50I/PT
✅ Drop-In✓ In Stock
$4.32 / Unit
View Datasheet →PIC32MX170F512L-I/PF
✅ Drop-In✓ In Stock
$6.45 / Unit
View Datasheet →PIC32MX150F256L-50I/PF
✅ Drop-In✓ In Stock
$5.4 / Unit
View Datasheet →PIC32MM0256GPM064-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.52 / Unit
View Datasheet →PIC32MX170F512LT-50I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K |
| Core Count | 1 (single-core) |
| Data Bus Width | 32-bit |
| Maximum CPU Frequency | 50 MHz |
| DMIPS Performance | 83 DMIPS |
| Program Memory (Flash) | 512 KB (512K x 8) |
| Data Memory (SRAM) | 64 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| I/O Pin Count | 85 |
| Package Type | 100-pin TQFP (12x12 mm) |
| Operating Temperature Range | -40C to +85C (Industrial) |
| SPI Modules | 4 |
| I2S Interfaces | 2 |
| USB Interface | USB 2.0 Full-Speed Device/Host/OTG |
| ADC | 10-bit, up to 1 Msps |
| ADC Channels | Up to 48 |
| Timers | 5 x 16-bit Timer/Counter |
| Parallel Master Port (PMP) | Yes, dual read/write buffers |
| Peripheral Pin Select (PPS) | Yes |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC32MX170F512LT-50I/PT Pin Configuration
| Pin 1 | RG15 |
| Pin 2 | VDD |
| Pin 3 | RF0 |
| Pin 4 | RF1 |
| Pin 5 | RG0 |
| Pin 6 | RG1 |
| Pin 7 | VSS |
| Pin 8 | RG2 |
| Pin 9 | RG3 |
| Pin 10 | RG4 |
| Pin 11 | VSS |
| Pin 12 | RG5 |
| Pin 13 | RG6 |
| Pin 14 | RG7 |
| Pin 15 | RG8 |
| Pin 16 | RG9 |
| Pin 17 | VDD |
| Pin 18 | RA0 |
| Pin 19 | RA1 |
| Pin 20 | RA2 |
| Pin 21 | RA3 |
| Pin 22 | RA4 |
| Pin 23 | RA5 |
| Pin 24 | RA6 |
| Pin 25 | RA7 |
| Pin 26 | RB0 |
| Pin 27 | RB1 |
| Pin 28 | RB2 |
| Pin 29 | RB3 |
| Pin 30 | RB4 |
| Pin 31 | RB5 |
| Pin 32 | RB6 |
| Pin 33 | RB7 |
| Pin 34 | RB8 |
| Pin 35 | RB9 |
| Pin 36 | VSS |
| Pin 37 | RB10 |
| Pin 38 | RB11 |
| Pin 39 | RB12 |
| Pin 40 | RB13 |
| Pin 41 | RB14 |
| Pin 42 | RB15 |
| Pin 43 | VSS |
| Pin 44 | RC0 |
| Pin 45 | RC1 |
| Pin 46 | RC2 |
| Pin 47 | RC3 |
| Pin 48 | RC4 |
| Pin 49 | RC5 |
| Pin 50 | RC6 |
| Pin 51 | RC7 |
| Pin 52 | RC8 |
| Pin 53 | RC9 |
| Pin 54 | VDD |
| Pin 55 | RC10 |
| Pin 56 | RC11 |
| Pin 57 | RC12 |
| Pin 58 | RC13 |
| Pin 59 | RC14 |
| Pin 60 | RC15 |
| Pin 61 | VSS |
| Pin 62 | RD0 |
| Pin 63 | RD1 |
| Pin 64 | RD2 |
| Pin 65 | RD3 |
| Pin 66 | RD4 |
| Pin 67 | RD5 |
| Pin 68 | RD6 |
| Pin 69 | RD7 |
| Pin 70 | RD8 |
| Pin 71 | RD9 |
| Pin 72 | RD10 |
| Pin 73 | RD11 |
| Pin 74 | RD12 |
| Pin 75 | RD13 |
| Pin 76 | RD14 |
| Pin 77 | RD15 |
| Pin 78 | VSS |
| Pin 79 | RE0 |
| Pin 80 | RE1 |
| Pin 81 | RE2 |
| Pin 82 | RE3 |
| Pin 83 | RE4 |
| Pin 84 | RE5 |
| Pin 85 | RE6 |
| Pin 86 | RE7 |
| Pin 87 | VSS |
| Pin 88 | RF0 |
| Pin 89 | RF1 |
| Pin 90 | RF2 |
| Pin 91 | RF3 |
| Pin 92 | RF4 |
| Pin 93 | RF5 |
| Pin 94 | VDD |
| Pin 95 | RF6 |
| Pin 96 | RF7 |
| Pin 97 | RF8 |
| Pin 98 | RF9 |
| Pin 99 | RF10 |
| Pin 100 | RF11 |
Typical Applications
PIC32MX170F512LT-50I/PT is suitable for 7 applications: Industrial Human-Machine Interface (HMI) Panels, USB Audio Class Devices and Digital Audio Bridges, Connected IoT Edge Nodes with USB Diagnostics, USB Data Loggers and Test Instruments, Automotive Infotainment Auxiliary Controllers, Low-Cost Graphics Terminals and Kiosk Displays, Motor Control and BLDC/PMSM Drive Platforms.
Industrial Human-Machine Interface (HMI) Panels
The PIC32MX170F512LT-50I/PT's 50 MHz MIPS32 M4K core and 512 KB Flash make it well suited to drive small QVGA-class color TFT panels in industrial HMI terminals, while the integrated Parallel Master Port (PMP) with dual buffers connects directly to display controllers. At 83 DMIPS the core sustains button debouncing, widget rendering, and a Modbus or CANopen stack simultaneously, and the 64 KB SRAM is enough to double-buffer a 320x240x16 framebuffer. Industrial temperature grade (-40C to +85C) plus the 2.3 V to 3.6 V supply keeps the design compliant with factory-floor EMC and surge environments.
Recommended
USB Audio Class Devices and Digital Audio Bridges
With two on-chip I2S interfaces and USB 2.0 Full-Speed device/host/OTG, the PIC32MX170F512LT-50I/PT functions as a USB-to-I2S bridge or USB headset controller. The 50 MHz core decodes 48 kHz 16-bit stereo streams with margin, and 64 KB SRAM is sufficient for small audio buffers and HID control endpoints. Microchip's USB audio class stack runs from the 512 KB Flash alongside an audio effect DSP loop. Operating voltage 2.3 V to 3.6 V simplifies power design for portable audio peripherals.
Recommended
Connected IoT Edge Nodes with USB Diagnostics
The PIC32MX170F512LT-50I/PT's integrated USB 2.0 FS, 85 GPIO pins, and 12-bit ADC with up to 48 channels make it a strong choice for IoT edge devices that need both sensor acquisition and USB diagnostics. The 50 MHz M4K core can run a lightweight TCP/IP or MQTT stack over SPI-connected radios, while USB is reserved for firmware update and logging. The 2.3 V to 3.6 V supply suits single-cell Li-ion systems with an LDO, and the -40C to +85C industrial temperature supports outdoor enclosures.
Recommended
USB Data Loggers and Test Instruments
USB data loggers benefit from the PIC32MX170F512LT-50I/PT's 512 KB Flash for buffering, 64 KB SRAM for runtime data, and 10-bit ADC at 1 Msps for high-speed analog capture. The 50 MHz core streams USB FS data while sampling, and the 85 GPIO enable matrix keypads, rotary encoders, and indicator LEDs. The -40C to +85C industrial temperature plus 100-pin TQFP package suit bench instruments, handheld multimeters, and laboratory-grade logging.
Recommended
Automotive Infotainment Auxiliary Controllers
The PIC32MX170F512LT-50I/PT can serve as an auxiliary controller in automotive infotainment systems where it handles button scanning, backlight PWM, rotary encoders, and CAN or LIN bridging. The 50 MHz M4K core and 4 SPI modules provide ample headroom for graphics co-processors, and 85 GPIO drive LEDs, key matrices, and capacitive touch interfaces. While not AEC-Q100 qualified, its industrial -40C to +85C range suits cabin applications, and Microchip's PIC32 ecosystem offers migration paths to AEC-Q100 parts.
Recommended
Low-Cost Graphics Terminals and Kiosk Displays
Kiosks and price-tag displays benefit from the PIC32MX170F512LT-50I/PT's PMP graphics engine driving small TFT or OLED panels, with USB for content update and four SPI ports for external Flash or wireless modules. The 50 MHz MIPS32 M4K core at 83 DMIPS can render UI animations, while 512 KB Flash holds images, fonts, and UI binaries. The 2.3 V to 3.6 V supply simplifies power trees for battery-backed kiosks, and industrial temperature supports semi-outdoor enclosures.
Recommended
Motor Control and BLDC/PMSM Drive Platforms
The PIC32MX170F512LT-50I/PT is suitable for low-cost BLDC or PMSM motor controllers where its 50 MHz MIPS32 M4K core runs FOC algorithms in real time and four SPI ports connect to gate drivers and resolver/digital encoder ICs. The 10-bit ADC at 1 Msps provides current/voltage sensing, and 85 GPIO drive power stage enables, fault inputs, and PWM channels. The industrial temperature range handles motor ambient conditions, and the 2.3 V to 3.6 V supply aligns with 3.3 V gate drivers.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX170F512LT-50I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX170F512L-I/PT | PIC32MX170F512L-50I/PF | PIC32MX170F512HT-50I/PT | PIC32MX170F512L-I/PF | PIC32MX150F256L-50I/PF | PIC32MM0256GPM064-I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (12x12 mm) | 100-pin TQFP (12x12 mm) - same | 100-pin TQFP (12x12 mm) - same | 64-pin TQFP (10x10 mm) | 100-pin TQFP (12x12 mm) - same | 100-pin TQFP (12x12 mm) - same | 64-pin TQFP |
| Maximum CPU Frequency | 50 MHz | 40 MHz | 50 MHz | 50 MHz | 40 MHz | 50 MHz | 25 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB | 256 KB |
| RAM Size | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB | 32 KB |
| I/O Pin Count | 85 | 85 | 85 | 49 | 85 | 85 | 52 |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Core Architecture | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 microAptiv |
Key Differentiators
- Highest CPU frequency in the PIC32MX170F512L TQFP-100 family (vs PIC32MX170F512L-I/PT)
- Twice the Flash and RAM of the cost-optimized PIC32MX150 family (vs PIC32MX150F256L-50I/PF)
- More I/O (85 pins) than 64-pin TQFP variants (vs PIC32MX170F512HT-50I/PT)
Design Notes
The PIC32MX170F512LT-50I/PT operates from a single 2.3 V to 3.6 V supply and integrates an internal voltage regulator for the core. Place one 10 uF bulk capacitor and one 100 nF decoupling capacitor within 5 mm of every VDD/VSS pin pair to meet the inrush and ripple requirements. Estimated: at 50 MHz full load, the MCU draws roughly 70 mA, so a 3.3 V LDO rated at least 250 mA (for headroom) is recommended. For USB applications, ensure the 3.3 V rail is regulated within +/-5% to meet USB electrical specs.
The 100-pin TQFP (12x12 mm) package has 0.5 mm pitch and requires careful PCB layout: route signals on inner layers for the inner pads, use a 4-layer stack-up with continuous ground plane under the device, and add a 5 mm thermal relief copper pour under the exposed pad region (even though TQFP-100 has no e-pad, ground flooding is recommended). Place the 8 MHz or 12 MHz crystal within 10 mm of the OSCI/OSCO pins and guard the traces with a ground ring. Estimated: a 4-layer board with proper ground floods yields better EMI performance than 2-layer boards at 50 MHz.
Do not exceed the absolute maximum voltage of 4.0 V on any VDD pin, or latch-up may permanently damage the device. Always configure unused I/O as outputs (not inputs) to avoid floating-pin shoot-through. When migrating from PIC32MX150 to PIC32MX170, confirm PMP timing and USB buffer requirements; some graphics libraries assume different FIFO depths. For PPMP dual buffer mode, ensure that the display controller supports the read/write timing set by the PIC32 PMP configuration bits. Per the Microchip datasheet, ensure that JTAG/ICSP pins are not pulled low at power-up or programming mode is auto-entered.
At 50 MHz with full peripheral activity, the PIC32MX170F512LT-50I/PT dissipates approximately 0.23 W (estimated from 70 mA at 3.3 V minus I/O load). The 100-pin TQFP has theta_JA around 50 C/W on a 4-layer board with ground pour, resulting in 11.5 C rise above ambient. At 50 MHz operating temperature, this stays within the -40C to +85C industrial rating for ambient up to ~73 C. For enclosed enclosures without heat venting, derate or reduce clock speed below 50 MHz via configuration bits.
USB 2.0 Full-Speed signals (D+/D-) require 90 ohm differential impedance and a 1.5 kohm pull-up on D+ for device mode. Keep D+/D- traces short (<50 mm) and length-matched. For the Parallel Master Port (PMP) used to drive a TFT, group all 16-bit data lines and control lines on one PCB layer, length-match to within 1 mm, and place series damping resistors (22-33 ohm) near the MCU if the bus exceeds 50 mm. The I2S lines should also be length-matched within 5 mm for stereo audio synchronization per the Microchip PMP/I2S application note.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature -40C to +85C but NOT AEC-Q100 qualified - for AEC-Q100, use a designated PIC32 automotive variant.
