PIC32MX170F256B-50I/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip PIC32MX170F256B-50I/SO is a 32-bit MIPS-based MCU running at up to 50 MHz with 256KB + 3KB boot Flash and an integrated ADC. It offers boundary scan support and fits a compact 28-pin SOIC package for space-constrained embedded designs. Well-suited for IoT gateways, USB peripherals, and real-time control applications requiring 32-bit performance.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC32MX170F256B-50I/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.9900(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 32-bit MIPS core at 50 MHz with 256KB Flash plus 3KB dedicated boot Flash for robust field firmware update capability
- Integrated multi-channel ADC and boundary scan in a 28-pin SOIC-28 footprint balancing peripheral richness with compact board area
- Extended industrial temperature rating (-40°C to +85°C) in the I-suffix grade for reliable operation across wide ambient conditions
Applications
The PIC32MX170F256B-50I/SO is ideal for applications requiring 32-bit processing in a small SOIC package, such as USB Human Interface Device controllers, Bluetooth audio accessories, and industrial sensor gateways. Its 256KB Flash accommodates full communication stacks alongside application code, while the 50 MHz MIPS core handles real-time signal processing tasks efficiently. The device is commonly used in wearable devices, handheld instruments, and compact data acquisition modules.
Specifications
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 6Weeks |
| YTEOL | 13 |
| Has ADC | YES |
| Additional Feature | THIS DEVICE FEATURES 3KBYTE OF BOOT FLASH MEMORY |
| Bit Size | 32 |
| Boundary Scan | YES |
| CPU Family | PIC32 |
| Clock Frequency-Max | 50MHz |
| DAC Channels | NO |
| DMA Channels | YES |
| Format | FIXED POINT |
| Integrated Cache | YES |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of DMA Channels | 4 |
| Number of External Interrupts | 5 |
| Number of I/O Lines | 21 |
| Number of Serial I/Os | 4 |
| Number of Timers | 7 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| RAM (bytes) | 65536 |
| ROM (words) | 262144 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 50MHz |
| Supply Current-Max | 37mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 2.3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the total Flash memory of the PIC32MX170F256B-50I/SO and how is it partitioned?
The PIC32MX170F256B-50I/SO provides 256KB of main program Flash plus 3KB of dedicated boot Flash. The boot Flash region holds the bootloader code separately from the application firmware, enabling secure field updates where the bootloader remains intact even if the 256KB main Flash region is overwritten during a firmware upgrade.
For a USB peripheral design, how does the PIC32MX170F256B-50I/SO's 50 MHz core improve HID responsiveness?
Running at 50 MHz on a 32-bit MIPS core, the PIC32MX170F256B-50I/SO can execute USB HID interrupt service routines in under 1 µs, ensuring sub-millisecond response to host poll cycles. The additional processing headroom compared to 8-bit MCUs allows concurrent handling of USB enumeration, application logic, and ADC sampling without firmware scheduling compromises.
When would a designer choose PIC32MX170F256B-50I/SO over the PIC32MX150F128B with 128KB Flash?
Designers choose the PIC32MX170F256B-50I/SO when firmware size exceeds 128KB, such as when integrating a full USB stack, FAT file system, or wireless protocol library alongside application code. The 256KB Flash provides double the program space while maintaining the same 28-pin SOIC-28 footprint at 50 MHz, making it a straightforward upgrade path without PCB re-layout.
Does the PIC32MX170F256B-50I/SO support boundary scan for manufacturing test, and what pins does it use?
Yes, the PIC32MX170F256B-50I/SO supports IEEE 1149.1 JTAG boundary scan, which is accessible through dedicated JTAG pins on the 28-pin SOIC-28 package. This allows automated in-circuit test equipment to verify all I/O connections and detect solder opens or shorts across the board without requiring physical bed-of-nails access to individual signal pins.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $5.2100 | $5.21 |
| 27+ | $4.9298 | $133.10 |
| 54+ | $4.7804 | $258.14 |
| 81+ | $4.4900 | $363.69 |
| 100+ | $4.3200 | $432.00 |
| 1000+ | $3.9900 | $3990.00 |
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