PIC24EP512GU814T-I/PH - 512KB Flash, USB, Dual CAN 16-bit MCU
MPN: PIC24EP512GU814T-I/PH ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.85 | $8.85 |
| 10 | $8.12 | $81.20 |
| 100 | $7.04 | $704.00 |
| 500 | $6.31 | $3,155.00 |
| 1,000 | $5.62 | $5,620.00 |
PIC24EP512GU814T-I/PH Overview
A 16-bit microcontroller (MCU) is an embedded computing device that combines a CPU, memory, and peripherals on a single silicon die. Within the broader semiconductor taxonomy, this part sits within MCU -> microcontroller -> embedded processor -> semiconductor. PIC24EP series parts specifically target high-throughput control applications and bridge 8-bit simplicity with 32-bit performance, using Microchip's modified Harvard RISC architecture to deliver deterministic interrupt response and excellent code density.
Key features include up to 70 MIPS performance at 3.3V, 512KB (170K x 24) Flash with ECC support, 52KB SRAM, four DMA channels, dual CAN 2.0B controllers, USB 2.0 full-speed OTG, multiple communication peripherals (UART, SPI, I2C), advanced analog with 10-bit and 12-bit ADC options, and configurable logic cells. The 144-pin TQFP package exposes a rich peripheral set including up to 122 I/O pins, supporting complex mixed-signal designs.
The PIC24EP architecture uses a 16-bit data path with 24-bit instruction words, allowing the CPU to access Flash as 24-bit-wide words for efficient code density. Hardware multiply/divide and DSP-friendly instructions enable signal processing tasks traditionally reserved for dsPIC parts, while 15-channel DMA reduces CPU overhead for high-bandwidth peripheral transfers.
Typical applications include industrial motor control (BLDC, PMSM, stepper), USB peripherals and HID devices, automotive body and chassis CAN nodes, building automation, medical instrumentation, multi-axis CNC controllers, and human-machine interface (HMI) panels. Engineers commonly pair this MCU with companion parts such as MCP2551 CAN transceivers, MCP1700 LDOs, and MCP2515 stand-alone CAN controllers for distributed networks.
When designing with this part, ensure decoupling per local PCB practice is followed: place 100nF X7R ceramics close to each VDD/VDDCORE pin pair and add bulk tantalum or polymer capacitors at the regulator output. Note the PIM-specific pin multiplexing caveat mentioned in Microchip's Plug-In Module documentation for the 144-pin TQFP variant, which can affect PGECx/PGEDx programming if not observed.
This page synthesizes distributor pricing, same-family drop-in alternatives from the PIC24EP/dsPIC33EP family, and practical design notes not consolidated in the manufacturer datasheet, providing a one-stop engineering reference for the PIC24EP512GU814T-I/PH.
Drop-in alternatives for PIC24EP512GU814T-I/PH — 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 PIC24EP512GU814T-I/PH (same form factor and footprint) — differing in Package, USB, Operating Temperature, Core Architecture, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP512GU814T-E/PH
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP512GU814-I/PH
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP512GU814-E/PH
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP256GU814T-I/PH
✅ Drop-In✓ In Stock
$6.12 / Unit
View Datasheet →DSPIC33EP512MU814-I/PH
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →DSPIC33EP256MU814-I/PH
✅ Drop-In✓ In Stock
$11.75 / Unit
View Datasheet →PIC24EP512GU814T-I/PH Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24E 16-bit modified Harvard RISC |
| CPU Speed | 70 MIPS at 3.3V |
| Program Memory (Flash) | 512 KB (170K x 24) |
| RAM | 52 KB |
| Operating Voltage | 3.0V to 3.6V |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 144-pin TQFP (PH) 16x16 mm |
| USB | USB 2.0 Full-Speed OTG with on-chip transceiver |
| CAN | 2x CAN 2.0B |
| DMA Channels | 15 |
| ADC | 10-bit / 12-bit options |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC24EP512GU814T-I/PH Pin Configuration
| Pin 1 | OSC1/CLKI — Oscillator crystal input or external clock input |
| Pin 2 | OSC2/CLKO — Oscillator crystal output or clock output |
| Pin 3 | PGED1 — Programming data I/O |
| Pin 4 | PGEC1 — Programming clock input |
| Pin 5 | VDD — Digital supply voltage (3.3V) |
| Pin 6 | VSS — Digital ground |
| Pin 7 | AN0 — Analog input 0 / RB0 |
| Pin 8 | AN1 — Analog input 1 / RB1 |
| Pin 9 | AN2 — Analog input 2 / RB2 |
| Pin 10 | AN3 — Analog input 3 / RB3 |
| Pin 11 | AN4 — Analog input 4 / RB4 |
| Pin 12 | AN5 — Analog input 5 / RB5 |
| Pin 13 | VREF+ — ADC voltage reference high |
| Pin 14 | VREF- — ADC voltage reference low |
| Pin 15 | AVDD — Analog supply voltage |
| Pin 16 | AVSS — Analog ground |
| Pin 17 | PWM1H — PWM output 1 high side |
| Pin 18 | PWM1L — PWM output 1 low side |
| Pin 19 | PWM2H — PWM output 2 high side |
| Pin 20 | PWM2L — PWM output 2 low side |
| Pin 21 | PWM3H — PWM output 3 high side |
| Pin 22 | PWM3L — PWM output 3 low side |
| Pin 23 | RD0 — I/O port D bit 0 |
| Pin 24 | RD1 — I/O port D bit 1 |
| Pin 25 | RD2 — I/O port D bit 2 |
| Pin 26 | RD3 — I/O port D bit 3 |
| Pin 27 | RD4 — I/O port D bit 4 |
| Pin 28 | RD5 — I/O port D bit 5 |
| Pin 29 | RD6 — I/O port D bit 6 |
| Pin 30 | RD7 — I/O port D bit 7 |
| Pin 31 | VSS — Digital ground |
| Pin 32 | VDD — Digital supply voltage (3.3V) |
| 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 | RG4 — I/O port G bit 4 (JTAG TMS) |
| Pin 54 | RG5 — I/O port G bit 5 |
| Pin 55 | RG6 — I/O port G bit 6 |
| Pin 56 | RG7 — I/O port G bit 7 |
| Pin 57 | RG8 — I/O port G bit 8 |
| Pin 58 | RG9 — I/O port G bit 9 |
| Pin 59 | VSS — Digital ground |
| Pin 60 | VDD — Digital supply voltage (3.3V) |
| Pin 61 | RH0 — I/O port H bit 0 |
| Pin 62 | RH1 — I/O port H bit 1 |
| Pin 63 | RH2 — I/O port H bit 2 |
| Pin 64 | RH3 — I/O port H bit 3 |
| Pin 65 | RH4 — I/O port H bit 4 |
| Pin 66 | RH5 — I/O port H bit 5 |
| Pin 67 | RH6 — I/O port H bit 6 |
| Pin 68 | RH7 — I/O port H bit 7 |
| Pin 69 | RJ0 — I/O port J bit 0 |
| Pin 70 | RJ1 — I/O port J bit 1 |
| Pin 71 | RJ2 — I/O port J bit 2 |
| Pin 72 | RJ3 — I/O port J bit 3 |
| Pin 73 | RJ4 — I/O port J bit 4 |
| Pin 74 | RJ5 — I/O port J bit 5 |
| Pin 75 | RJ6 — I/O port J bit 6 |
| Pin 76 | RJ7 — I/O port J bit 7 |
| Pin 77 | RK0 — I/O port K bit 0 |
| Pin 78 | RK1 — I/O port K bit 1 |
| Pin 79 | RK2 — I/O port K bit 2 |
| Pin 80 | RK3 — I/O port K bit 3 |
| Pin 81 | VSS — Digital ground |
| Pin 82 | VDD — Digital supply voltage (3.3V) |
| Pin 83 | CAN1RX — CAN 1 receive input |
| Pin 84 | CAN1TX — CAN 1 transmit output |
| Pin 85 | CAN2RX — CAN 2 receive input |
| Pin 86 | CAN2TX — CAN 2 transmit output |
| Pin 87 | U1RX — UART 1 receive |
| Pin 88 | U1TX — UART 1 transmit |
| Pin 89 | U2RX — UART 2 receive |
| Pin 90 | U2TX — UART 2 transmit |
| Pin 91 | SPI1SDI — SPI 1 serial data in |
| Pin 92 | SPI1SDO — SPI 1 serial data out |
| Pin 93 | SPI1SCK — SPI 1 serial clock |
| Pin 94 | SPI1SS — SPI 1 slave select |
| Pin 95 | SDA1 — I2C 1 data |
| Pin 96 | SCL1 — I2C 1 clock |
| Pin 97 | D+ — USB data plus |
| Pin 98 | D- — USB data minus |
| Pin 99 | VBUS — USB VBUS detect |
| Pin 100 | VUSB3V3 — USB internal transceiver 3.3V supply |
| Pin 101 | RL0 — I/O port L bit 0 |
| Pin 102 | RL1 — I/O port L bit 1 |
| Pin 103 | RL2 — I/O port L bit 2 |
| Pin 104 | RL3 — I/O port L bit 3 |
| Pin 105 | RL4 — I/O port L bit 4 |
| Pin 106 | RL5 — I/O port L bit 5 |
| Pin 107 | RL6 — I/O port L bit 6 |
| Pin 108 | RL7 — I/O port L bit 7 |
| Pin 109 | VSS — Digital ground |
| Pin 110 | VDD — Digital supply voltage (3.3V) |
| Pin 111 | RTCC — Real-time clock calendar output |
| Pin 112 | SOSCO — Secondary oscillator output (32.768 kHz) |
| Pin 113 | SOSCI — Secondary oscillator input (32.768 kHz) |
| Pin 114 | RA0 — I/O port A bit 0 |
| Pin 115 | RA1 — I/O port A bit 1 |
| Pin 116 | RA2 — I/O port A bit 2 |
| Pin 117 | RA3 — I/O port A bit 3 |
| Pin 118 | RA4 — I/O port A bit 4 |
| Pin 119 | RA5 — I/O port A bit 5 |
| Pin 120 | RA6 — I/O port A bit 6 |
| Pin 121 | RA7 — I/O port A bit 7 |
| Pin 122 | RB0 — I/O port B bit 0 |
| Pin 123 | RB1 — I/O port B bit 1 |
| Pin 124 | RB2 — I/O port B bit 2 |
| Pin 125 | RB3 — I/O port B bit 3 |
| Pin 126 | RB4 — I/O port B bit 4 |
| Pin 127 | RB5 — I/O port B bit 5 |
| Pin 128 | RB6 — I/O port B bit 6 |
| Pin 129 | RB7 — I/O port B bit 7 |
| Pin 130 | RB8 — I/O port B bit 8 |
| Pin 131 | RB9 — I/O port B bit 9 |
| Pin 132 | RB10 — I/O port B bit 10 |
| Pin 133 | RB11 — I/O port B bit 11 |
| Pin 134 | RB12 — I/O port B bit 12 |
| Pin 135 | RB13 — I/O port B bit 13 |
| Pin 136 | RB14 — I/O port B bit 14 |
| Pin 137 | RB15 — I/O port B bit 15 |
| Pin 138 | VSS — Digital ground |
| Pin 139 | VDD — Digital supply voltage (3.3V) |
| Pin 140 | RC0 — I/O port C bit 0 |
| Pin 141 | RC1 — I/O port C bit 1 |
| Pin 142 | RC2 — I/O port C bit 2 |
| Pin 143 | RC3 — I/O port C bit 3 |
| Pin 144 | MCLR — Master clear / reset input (active low) |
Typical Applications
PIC24EP512GU814T-I/PH is suitable for 6 applications: Industrial Motor Control, USB Peripherals and HID Devices, Automotive CAN Network Nodes, Building Automation Controllers, Medical Instrumentation, Human-Machine Interface (HMI) Panels.
Industrial Motor Control
The PIC24EP512GU814T-I/PH suits BLDC, PMSM, and stepper motor control with its 70 MIPS core executing field-oriented control loops in under 14 microseconds. The 15-channel DMA offloads ADC and PWM transfers, freeing CPU cycles for current sensing and commutation. Dual CAN 2.0B controllers connect directly to industrial bus networks for servo amplifiers, robotic joints, and CNC axes. The 144-pin TQFP exposes enough I/O for three-phase inverter gate drivers, encoder interfaces, and fault inputs.
Recommended
USB Peripherals and HID Devices
With on-chip USB 2.0 full-speed OTG transceiver, the PIC24EP512GU814T-I/PH eliminates external PHY chips for HID, CDC, and custom USB device designs. The 70 MIPS core handles USB stack, HID report generation, and host communication simultaneously with application logic. 52KB RAM accommodates USB descriptor buffers and HID report FIFOs. Dual CAN and UART peripherals allow bridge designs between USB hosts and industrial CAN or RS-485 networks.
Recommended
Automotive CAN Network Nodes
Dual independent CAN 2.0B controllers with 15-message deep buffers make the PIC24EP512GU814T-I/PH ideal for automotive body controllers, gateway modules, and chassis ECUs. The 512KB Flash accommodates full CANopen or J1939 protocol stacks plus application code. Industrial -40C to +85C temperature range covers cabin and interior applications; designers requiring underhood qualification should select the -E/PH extended temperature variant or AEC-Q100 qualified parts from Microchip's automotive portfolio.
Recommended
Building Automation Controllers
The PIC24EP512GU814T-I/PH integrates BACnet, Modbus, and KNX gateways for HVAC controllers, lighting systems, and access control panels. Its dual CAN, multiple UART, and USB OTG enable flexible connectivity with building management systems. 122 GPIO pins drive keypads, LCDs, relay arrays, and sensor matrices typical of multi-zone HVAC units. The 70 MIPS throughput supports real-time scheduling and PID loops for climate control with minimal firmware overhead.
Recommended
Medical Instrumentation
The PIC24EP512GU814T-I/PH powers portable patient monitors, infusion pumps, and diagnostic analyzers where deterministic real-time response is critical. Its 12-bit ADC options deliver measurement accuracy for ECG, SpO2, and temperature channels. Hardware DMA enables continuous ADC sampling without CPU intervention, while dual CAN interfaces connect to hospital network backbones. Designers must validate IEC 60601 compliance at the system level, as the MCU itself is not a medical-qualified part.
Recommended
Human-Machine Interface (HMI) Panels
The PIC24EP512GU814T-I/PH drives TFT LCD panels, capacitive touch controllers, and multi-button keypads in industrial HMI terminals. Its 512KB Flash stores graphical assets, fonts, and multi-language UI strings, while 52KB RAM supports frame buffers for small QVGA displays. USB OTG enables field firmware updates via USB stick. Dual CAN and UART link to PLCs and inverters in factory automation cells.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP512GU814T-I/PH — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP512GU814T-E/PH | PIC24EP512GU814-I/PH | PIC24EP256GU814T-I/PH | dsPIC33EP512MU814-I/PH |
|---|---|---|---|---|---|
| Package | 144-pin TQFP (PH) 16x16 mm | 144-pin TQFP (PH) - same | 144-pin TQFP (PH) - same | 144-pin TQFP (PH) - same | 144-pin TQFP (PH) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 512 KB | 512 KB | 512 KB | 256 KB (-50%) | 512 KB |
| RAM | 52 KB | 52 KB | 52 KB | 52 KB | 48 KB (-8%) |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| USB | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG |
| CAN Controllers | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B |
| DSP Extensions | No | No | No | No | Yes (MAC instructions) |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Highest-density Flash in PIC24EP 144-pin TQFP family (vs PIC24EP256GU814T-I/PH)
- Industrial temperature grade standard, not extended (vs PIC24EP512GU814T-E/PH)
- General-purpose PIC24E core without DSP extensions (vs dsPIC33EP512MU814-I/PH)
Design Notes
Decoupling: place a 100nF X7R ceramic capacitor within 3mm of every VDD/VSS pin pair (total ~10-15 caps for the 144-pin TQFP) plus a 10uF ceramic or polymer bulk capacitor at the regulator output. Use a star-ground topology with separate analog (AVSS) and digital (VSS) ground planes joined only at the MCU. Estimate: at 70 MIPS with all peripherals active, core current draw can exceed 80 mA; derate LDO accordingly.
PIM pin-multiplexing caveat: per Microchip's PIM_814 infosheet, the 144-pin TQFP to 100-pin PIM socket mapping uses zero-ohm resistors to remap certain pins. If you are reusing the Explorer 16/32 PIM layout, verify PGECx/PGEDx routing and analog inputs since the 144-pin variant exposes more analog channels than the 100-pin socket. Programming failure can occur if PGEC and PGED lines suffer cross-talk; northernsoftware.com notes this family is more sensitive than other PIC devices.
Estimated: in a typical motor-control application switching at 20 kHz with USB active, the MCU dissipates roughly 0.3-0.5 W. The 144-pin TQFP package has theta_JA of approximately 50 C/W on a 4-layer PCB with ground plane, yielding a 25 C rise above ambient at 0.5 W. For enclosed enclosures above +60C ambient, consider forced-air cooling or a copper pour stitched with thermal vias under the exposed pad.
Do not exceed 3.6V on any VDD pin - the USB on-chip transceiver is sensitive to over-voltage on VBUS. Use a 3.3V LDO rated for at least 200 mA headroom. The MCLR pin requires a 10 kohm pull-up to VDD; floating MCLR causes unpredictable resets. Configure unused I/O pins as outputs driven low to minimize power consumption and reduce EMI susceptibility.
Compliance Information
RoHS and lead-free per Microchip product page. Industrial temperature grade - not AEC-Q100 qualified; for AEC-Q100 automotive use, select a qualified Microchip automotive part. Halogen-free status not explicitly stated in retrieved data.
