PIC24FJ256GB210-I/PT - 16-bit 256KB Flash USB MCU | Microchip
MPN: PIC24FJ256GB210-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.45 | $9.45 |
| 10 | $8.51 | $85.10 |
| 100 | $7.56 | $756.00 |
| 250 | $7.18 | $1,795.00 |
| 500 | $6.79 | $3,395.00 |
PIC24FJ256GB210-I/PT Overview
A microcontroller (MCU) is an integrated circuit that combines a CPU core, volatile and non-volatile memory, and programmable peripherals into a single chip. Within the broader power management and embedded hierarchy, the PIC24FJ256GB210 is a member of the 16-bit PIC24F MCU family, which sits between 8-bit PIC16/PIC18 devices and 32-bit PIC32 devices in the Microchip portfolio. It targets USB-enabled human-interface, data-acquisition, and battery-powered applications that require more code space and RAM than 8-bit MCUs typically offer.
Key differentiating features of the PIC24FJ256GB210 include its integrated USB 2.0 OTG peripheral (Host + Device, low/full speed), a large 96KB SRAM for USB buffering and protocol stacks, and a rich peripheral set: up to 84 I/O pins, multiple UART/SPI/I2C interfaces, a 16-channel 10-bit ADC, comparators, and a Parallel Master Port (PMP) for graphics or external memory. It also supports the enhanced PMP/eMPU graphics controller functionality referenced in the PIC24FJ256DA210 family cross-reference, giving designers a path to embedded displays.
Architecturally, the PIC24FJ256GB210 is built on Microchip's modified Harvard RISC core with a 16-bit data path and a 24-bit instruction word, enabling single-cycle ALU operations and deterministic interrupt latency. The eXtreme Low Power (eXLP) feature with deep sleep and multiple idle modes allows the device to consume microamp-level standby currents, suitable for battery or USB-bus powered designs. A 2.5V/3.3V dual-voltage operation simplifies designs shared with analog rails.
Typical applications include USB peripherals (HID, CDC, MSD), USB OTG hosts, data loggers, embedded medical devices, industrial control with USB diagnostics, and graphics-based HMI panels. The wide operating voltage range (2.2V to 3.6V) and large RAM also suit audio processing and protocol bridging tasks.
When designing with this MCU, ensure the ICSP programming lines (PGECx/PGEDx) are routed cleanly - the device is more sensitive to crosstalk on these traces than other PIC24F parts, which can cause programming failures. Decouple VDD/VUSB with 100nF + bulk caps close to the pins.
This page consolidates verified distributor pricing, drop-in alternatives from the same Microchip family, and practical design notes that supplement the manufacturer datasheet.
Drop-in alternatives for PIC24FJ256GB210-I/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 PIC24FJ256GB210-I/PT (same form factor and footprint) — differing in I/O Pins, Package, ADC, Comparators, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ256GB210T-I/PT
✅ Drop-In✓ In Stock
$6.88 / Unit
View Datasheet →PIC24FJ256DA210-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ256GB210-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F (16-bit modified Harvard RISC) |
| Instruction Width | 24-bit |
| Data Path | 16-bit |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Flash Memory | 256 KB (85.5K x 24 instructions) |
| RAM | 96 KB |
| USB Controller | USB 2.0 On-the-Go (Host + Device), Low/Full Speed |
| Operating Voltage Range | 2.2 V to 3.6 V |
| I/O Pins | Up to 84 |
| ADC | 16-channel, 10-bit |
| Communication Peripherals | UART, SPI, I2C |
| Parallel Master Port (PMP/ePMP) | Yes (graphics controller capable) |
| Comparators | Yes |
| Package | TQFP-100 (PT) 12x12 mm |
| Operating Temperature Range | -40C to +85C (Industrial) |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 hours) |
| RoHS Status | Compliant |
PIC24FJ256GB210-I/PT Pin Configuration
| Pin 1 | RA0 — I/O port A bit 0 / analog input |
| Pin 2 | RA1 — I/O port A bit 1 / analog input |
| Pin 3 | RA2 — I/O port A bit 2 / analog input |
| Pin 4 | RA3 — I/O port A bit 3 / analog input |
| Pin 5 | RA4 — I/O port A bit 4 / analog input |
| Pin 6 | RA5 — I/O port A bit 5 / analog input |
| Pin 7 | RA6 — I/O port A bit 6 / analog input |
| Pin 8 | RA7 — I/O port A bit 7 / analog input |
| Pin 9 | RB0 — I/O port B bit 0 / analog input |
| Pin 10 | RB1 — I/O port B bit 1 / analog input |
| Pin 11 | RB2 — I/O port B bit 2 / analog input |
| Pin 12 | RB3 — I/O port B bit 3 / analog input |
| Pin 13 | RB4 — I/O port B bit 4 / analog input |
| Pin 14 | RB5 — I/O port B bit 5 / analog input / PGED1 |
| Pin 15 | RB6 — I/O port B bit 6 / analog input / PGEC1 |
| Pin 16 | RB7 — I/O port B bit 7 / analog input |
| Pin 17 | RC0 — I/O port C bit 0 |
| Pin 18 | RC1 — I/O port C bit 1 |
| Pin 19 | RC2 — I/O port C bit 2 |
| Pin 20 | RC3 — I/O port C bit 3 |
| Pin 21 | RC4 — I/O port C bit 4 |
| Pin 22 | RC5 — I/O port C bit 5 |
| Pin 23 | RC6 — I/O port C bit 6 |
| Pin 24 | RC7 — I/O port C bit 7 |
| Pin 25 | RD0 — I/O port D bit 0 |
| Pin 26 | RD1 — I/O port D bit 1 |
| Pin 27 | RD2 — I/O port D bit 2 |
| Pin 28 | RD3 — I/O port D bit 3 |
| Pin 29 | RD4 — I/O port D bit 4 |
| Pin 30 | RD5 — I/O port D bit 5 |
| Pin 31 | RD6 — I/O port D bit 6 |
| Pin 32 | RD7 — I/O port D bit 7 |
| Pin 33 | RE0 — I/O port E bit 0 |
| Pin 34 | RE1 — I/O port E bit 1 |
| Pin 35 | RE2 — I/O port E bit 2 |
| Pin 36 | RE3 — I/O port E bit 3 |
| Pin 37 | RE4 — I/O port E bit 4 |
| Pin 38 | RE5 — I/O port E bit 5 |
| Pin 39 | RE6 — I/O port E bit 6 |
| Pin 40 | RE7 — I/O port E bit 7 |
| Pin 41 | RF0 — I/O port F bit 0 |
| Pin 42 | RF1 — I/O port F bit 1 |
| Pin 43 | RF2 — I/O port F bit 2 |
| Pin 44 | RF3 — I/O port F bit 3 |
| Pin 45 | RF4 — I/O port F bit 4 |
| Pin 46 | RF5 — I/O port F bit 5 |
| Pin 47 | RF6 — I/O port F bit 6 |
| Pin 48 | RF7 — I/O port F bit 7 |
| Pin 49 | RG0 — I/O port G bit 0 |
| Pin 50 | RG1 — I/O port G bit 1 |
| Pin 51 | RG2 — I/O port G bit 2 |
| Pin 52 | RG3 — I/O port G bit 3 |
| Pin 53 | RG6 — I/O port G bit 6 |
| Pin 54 | RG7 — I/O port G bit 7 |
| Pin 55 | RG8 — I/O port G bit 8 |
| Pin 56 | RG9 — I/O port G bit 9 |
| Pin 57 | VUSB — USB transceiver supply |
| Pin 58 | VBUS — USB VBUS sensing input |
| Pin 59 | D+ — USB D+ data line |
| Pin 60 | D- — USB D- data line |
| Pin 61 | VCAP — External capacitor for internal voltage regulator |
| Pin 62 | VDD — Positive supply voltage |
| Pin 63 | VDD — Positive supply voltage |
| Pin 64 | VSS — Ground reference |
| Pin 65 | OSC1 — Crystal oscillator input |
| Pin 66 | OSC2 — Crystal oscillator output |
| Pin 67 | MCLR — Master clear reset (active low) |
| Pin 68 | PGED2 — ICSP programming data line 2 |
| Pin 69 | PGEC2 — ICSP programming clock line 2 |
| Pin 70 | PGED3 — ICSP programming data line 3 |
| Pin 71 | PGEC3 — ICSP programming clock line 3 |
| Pin 72 | RH0 — I/O port H bit 0 / PMP data |
| Pin 73 | RH1 — I/O port H bit 1 / PMP data |
| Pin 74 | RH2 — I/O port H bit 2 / PMP data |
| Pin 75 | RH3 — I/O port H bit 3 / PMP data |
| Pin 76 | RH4 — I/O port H bit 4 / PMP data |
| Pin 77 | RH5 — I/O port H bit 5 / PMP data |
| Pin 78 | RH6 — I/O port H bit 6 / PMP data |
| Pin 79 | RH7 — I/O port H bit 7 / PMP data |
| Pin 80 | RJ0 — I/O port J bit 0 |
| Pin 81 | RJ1 — I/O port J bit 1 |
| Pin 82 | RJ2 — I/O port J bit 2 |
| Pin 83 | RJ3 — I/O port J bit 3 |
| Pin 84 | RJ4 — I/O port J bit 4 |
| Pin 85 | RJ5 — I/O port J bit 5 |
| Pin 86 | RJ6 — I/O port J bit 6 |
| Pin 87 | RJ7 — I/O port J bit 7 |
| Pin 88 | RK0 — I/O port K bit 0 / PMP data |
| Pin 89 | RK1 — I/O port K bit 1 / PMP data |
| Pin 90 | RK2 — I/O port K bit 2 / PMP data |
| Pin 91 | RK3 — I/O port K bit 3 / PMP data |
| Pin 92 | RK4 — I/O port K bit 4 / PMP data |
| Pin 93 | RK5 — I/O port K bit 5 / PMP data |
| Pin 94 | RK6 — I/O port K bit 6 / PMP data |
| Pin 95 | RK7 — I/O port K bit 7 / PMP data |
| Pin 96 | VDD — Positive supply voltage |
| Pin 97 | VSS — Ground reference |
| Pin 98 | ENVREG — Voltage regulator enable |
| Pin 99 | TMS — JTAG test mode select |
| Pin 100 | TCK — JTAG test clock |
Typical Applications
PIC24FJ256GB210-I/PT is suitable for 7 applications: USB Human Interface Device (HID), USB On-the-Go Host (Mass Storage / HID Dongles), Data Logger with USB Bulk Endpoint Upload, Industrial Control with USB Diagnostics Port, Embedded Medical Device USB Interface, Graphics HMI Panel (ePMP Display Interface), Audio Processing / USB Headset Interface.
USB Human Interface Device (HID)
The PIC24FJ256GB210-I/PT is well matched to USB HID applications because it integrates a USB 2.0 OTG controller (Host + Device, low/full speed) plus 96 KB SRAM, which comfortably holds HID class drivers plus application code. Running at 32 MHz (16 MIPS) it can service USB polling intervals (1 ms for full-speed HID) without CPU bottlenecking, while the integrated 10-bit ADC and 84 I/O pins handle button/sensor scanning directly. For keyboards, mice, game controllers, and custom HID peripherals, this part replaces the PIC24FJ256GB110 with 6x more RAM and drops into the same TQFP-100 footprint, simplifying migration.
Recommended
USB On-the-Go Host (Mass Storage / HID Dongles)
The PIC24FJ256GB210-I/PT's integrated USB OTG Host capability lets it act as a USB host for thumb drives, keyboards, or mice without external PHY chips. With 96 KB of SRAM and 256 KB Flash, it can fit embedded file system stacks (FAT16/32) plus application logic, while the 32 MHz core handles USB SOF scheduling. The eXtreme Low Power idle modes drop standby current to microamp range when no USB device is attached, useful for battery-powered OTG peripherals. Operating from a single 3.3 V rail simplifies USB-bus-powered designs.
Recommended
Data Logger with USB Bulk Endpoint Upload
The PIC24FJ256GB210-I/PT's large 96 KB SRAM serves as a deep capture buffer for sensors sampled by its 16-channel 10-bit ADC before USB bulk transfer to a host PC. At 32 MHz and 16 MIPS, the core can maintain ADC conversion rates while sustaining USB bandwidth (up to 12 Mb/s full speed), supporting continuous logging without dropped samples. The 84 available I/O pins accommodate multiplexed sensor channels and external memory expansion via the Enhanced PMP, while the wide 2.2-3.6 V supply range accepts battery or USB-bus power directly.
Recommended
Industrial Control with USB Diagnostics Port
In industrial controllers, the PIC24FJ256GB210-I/PT serves as a USB diagnostics bridge exposing process variables, fault logs, and configuration via CDC or vendor-class USB. Its 256 KB Flash stores IEC 61131-style logic blocks plus a USB stack, and 96 KB RAM retains trend buffers. The -40C to +85C industrial temperature rating and 2.2-3.6 V operation handle plant-floor supplies. The 84 I/O pins plus UART/SPI/I2C ports allow direct integration with motor drives and sensor networks, while on-chip comparators handle safety interlocks without external glue logic.
Recommended
Embedded Medical Device USB Interface
For portable medical devices like glucose meters, spirometers, and pulse oximeters, the PIC24FJ256GB210-I/PT delivers USB connectivity in a low-power footprint. The eXLP sleep currents extend battery life between patient measurements, while the 16 MIPS performance runs measurement algorithms and USB stacks concurrently. The 96 KB RAM holds patient records and trend buffers, with the 256 KB Flash sufficient for calibration tables and IEC 62304-class firmware. The 10-bit ADC with 16 channels directly interfaces analog front ends for biosensors, reducing bill-of-materials cost.
Recommended
Graphics HMI Panel (ePMP Display Interface)
The PIC24FJ256GB210-I/PT's Enhanced Parallel Master Port (ePMP) drives TFT LCDs and external SRAM/Flash, enabling cost-optimized HMI panels without an external graphics controller. Combined with 96 KB RAM and 256 KB Flash, it stores bitmap assets and menu logic on-chip; for richer graphics, drop-up to the PIC24FJ256DA210 family with integrated graphics controller. The 84 I/O pins plus ePMP data bus accommodate 8-/16-bit color interfaces, while USB OTG supports touch-screen firmware updates from a USB stick in the field.
Recommended
Audio Processing / USB Headset Interface
In USB headsets and audio adapters, the PIC24FJ256GB210-I/PT serves as a USB audio class device controlling sample rates, volume, and codec interfacing via I2S/SPI. Its 96 KB RAM holds short audio buffers and equalizer coefficient tables, while 32 MHz performance is sufficient for 48 kHz/16-bit USB audio full-speed streams. The on-chip 10-bit ADC and comparators support sidetone detection and button-press sensing. eXLP idle modes reduce consumption during silence, extending battery life in wireless headset dongles.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ256GB210-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ256GB210T-I/PT | PIC24FJ256GB210-I/BG | PIC24FJ256DA210-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (PT) 12x12 mm | TQFP-100 (PT) 12x12 mm - same | BGA-121 (different) | TQFP-100 (PT) 12x12 mm - same |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB |
| RAM | 96 KB | 96 KB | 96 KB | 96 KB |
| CPU Speed | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) |
| USB Controller | USB 2.0 OTG Host+Device, Low/Full Speed | USB 2.0 OTG Host+Device, Low/Full Speed | USB 2.0 OTG Host+Device, Low/Full Speed | USB 2.0 OTG Host+Device, Low/Full Speed |
| Graphics Controller | ePMP (external memory interface) | ePMP (external memory interface) | ePMP (external memory interface) | Integrated graphics controller |
| Operating Voltage | 2.2 V to 3.6 V | 2.2 V to 3.6 V | 2.2 V to 3.6 V | 2.2 V to 3.6 V |
Key Differentiators
- Higher RAM than predecessor GB110 family (vs PIC24FJ256GB110-I/PT)
- USB OTG Host + Device in single chip (vs PIC24FJ256DA210-I/PT)
- eXtreme Low Power (eXLP) idle modes (vs PIC24FJ256GB210-I/BG)
Design Notes
Route PGECx/PGEDx ICSP traces with care - the PIC24FJ256GB210 is more sensitive to crosstalk between programming lines than other PIC24F parts. According to the Microchip forum guidance, keep PGEC/PGED traces short, parallel, and away from switching signals; failure to do so can cause programming verification errors. A ground guard on either side of the pair is recommended for production programming yields.
Place 100 nF ceramic decoupling capacitors as close as possible to every VDD/VSS pin pair, plus a 4.7 uF or 10 uF bulk capacitor near the package. According to Microchip's PIC24FJ256GB210 family datasheet, the VCAP pin requires a low-ESR capacitor (typically 10 uF) for the internal voltage regulator; omitting this capacitor causes erratic operation. The VUSB pin should have its own 100 nF + bulk decoupling to isolate USB transceiver noise from the digital core.
The 100-pin TQFP (12x12 mm) package has a 0.5 mm pitch that requires precise PCB manufacturing - design rules should specify 4 mil trace/space minimum with micro-vias or dog-bone fan-outs for inner pads. According to Microchip's land pattern recommendations, use a non-solder-mask-defined (NSMD) pad with a solder mask expansion of about 0.05 mm to improve solder joint reliability, especially for thermal-cycled industrial designs.
Do not assume the PIC24FJ256GB210 is code-compatible with PIC24FJ256GB110 firmware - the increased RAM and additional peripherals require recompilation under MPLAB XC16 and may require linker script adjustments. According to the Microchip migration guidance, while pin-compatibility exists, libraries written for the GB110's smaller RAM may fail silently on the GB210 if not re-validated; full regression testing is recommended before declaring a migration successful.
The USB D+/D- traces must be 90 ohm differential impedance and length-matched to within 150 mil per USB 2.0 full-speed requirements. According to the Microchip datasheet, place the USB series termination resistors (typically 27-33 ohm) close to the MCU pins, not at the connector; the VBUS sense line should include a divider to step down 5 V to the MCU's 3.3 V tolerant input range when used for OTG session detection.
Compliance Information
RoHS and lead-free per Microchip product page. Not AEC-Q100 qualified - choose PIC24FJ256GB210-E/PT (extended temperature) or PIC variants with -Q suffix for automotive applications.