Microchip Technology

PIC24EP256GU814-I/PH - 70 MIPS 16-bit MCU, 256KB Flash, USB, Dual CAN | Microchip

Артикул: PIC24EP256GU814-I/PH ✓ Активен
В наличии Отправка в течение 1–3 рабочих дней
3.0 V to 3.6 V Vdss 144-pin TQFP (PH) 16x16 mm Package 70 MIPS Speed 256 KB (85.5K x 24) Memory
От $12.95 USD / шт.
MOQ: 1 |
Цена обновлена: 2026-10-09
Оптовые цены
Кол-во Цена за ед. Итого
1 $20.83 $20,83
10 $18.95 $189,50
100 $16.42 $1.642,00
500 $14.18 $7.090,00
1.000 $12.95 $12.950,00
ℹ️ Все цены указаны в USD

PIC24EP256GU814-I/PH Обзор

The Microchip Technology PIC24EP256GU814-I/PH is a high-performance 16-bit microcontroller from the PIC24E family featuring a 70 MIPS modified Harvard DSP core, 256KB (85.5K x 24) of Flash program memory, and 52KB SRAM, housed in a 144-pin TQFP (16x16 mm, PH suffix) package. It integrates USB 2.0 Full-Speed On-The-Go, dual CAN 2.0B controllers, 83 general-purpose I/O pins, and runs from a 3.0V to 3.6V single supply.

A 16-bit microcontroller (MCU) is an embedded processor that fetches and executes instructions on 16-bit data paths, sitting architecturally between 8-bit MCUs (lower cost, simpler peripherals) and 32-bit ARM Cortex-M devices (higher performance, richer ecosystems). The PIC24EP256GU814 belongs to the hierarchy 16-bit MCU -> Digital Signal Controller (DSC) -> PIC24E family -> general-purpose high-performance tier, giving engineers DSP-class MAC throughput alongside deterministic interrupt response.

Key differentiating features include the 70 MIPS core with single-cycle hardware multiply and zero-overhead loops, four 16-bit timer/counter modules plus nine additional 16-bit general-purpose timers, a 12-bit ADC with up to 500 ksps conversion rate, and four DMA channels that offload data movement from the CPU. The integrated USB OTG controller eliminates an external PHY chip for many designs, while dual CAN 2.0B interfaces support industrial networking protocols such as CANopen and DeviceNet.

The PIC24E core is a 16-bit modified Harvard pipeline with a dedicated multiply/accumulate unit, enabling single-cycle MAC operations critical for closed-loop motor control and digital power conversion. Peripheral Pin Select (PPS) provides digital peripheral remapping for flexible PCB routing, and the 4-channel DMA engine sustains high-throughput peripheral interactions without CPU intervention.

Typical applications include industrial motor control (BLDC, PMSM, ACIM variable-frequency drives), USB-CAN bridge gateways for industrial automation, advanced sensor fusion platforms, automotive body and comfort ECUs, and embedded HMI controllers. The combination of high-resolution PWM, fast successive-approximation ADC, dual CAN, and USB OTG makes it especially suitable for industrial servo drives and CAN-based distributed control.

When designing with this MCU, keep the supply rail inside 3.0V to 3.6V and place decoupling capacitors close to every VDDCORE/VDD pin pair. The PPS feature simplifies layout, but analog and high-speed digital assignments must still be cross-checked against the datasheet pinout. The MPLAB Harmony configurator is recommended for peripheral initialization and code generation.

This page synthesizes distributor pricing, drop-in alternatives drawn from the same PIC24E family, and practical design notes not collected in the manufacturer datasheet alone.

Аналоги без доработки для PIC24EP256GU814-I/PH — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.

Варианты в этой серии

Модели той же серии, совместимые без доработки с PIC24EP256GU814-I/PH (тот же форм-фактор и посадочное место) — отличается по ADC, Operating Temperature, Package, CAN, CPU Performance.

Microchip Technology
ADC: Dual 12-bit, up to 16 input channels
Operating Temperature: -40C to +85C (Industrial, -I)
Package: 100-pin TQFP (PF), 14x14 mm
Microchip Technology
ADC: Four 12-bit, 1.1 Msps, 32 channels
Operating Temperature: -40C to +125C (E grade)
Package: 144-pin TQFP (16x16 mm)

Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:

PIC24EP512GU814-I/PH

✅ Прямая замена
📦 144-pin TQFP (16x16 mm)
512 KB Flash vs 256 KB Flash (+100%), same die family, same peripheral set, identical pinout

📋 Справочный аналог (нет в каталоге)

PIC24EP128GU814-I/PH

✅ Прямая замена
📦 144-pin TQFP (16x16 mm)
128 KB Flash vs 256 KB Flash (-50%), otherwise pin-to-pin compatible

📋 Справочный аналог (нет в каталоге)

PIC24EP256GP806-I/PH

✅ Прямая замена
📦 144-pin TQFP (16x16 mm)
no USB OTG, no second CAN module, otherwise same 256KB Flash and 144-pin footprint

📋 Справочный аналог (нет в каталоге)

dsPIC33EP256MU810-I/PH

✅ Прямая замена
📦 144-pin TQFP (16x16 mm)
dsPIC33EP DSC core adds DSP instructions vs PIC24E MCU, 256 KB Flash, same 144-pin TQFP footprint

📋 Справочный аналог (нет в каталоге)

dsPIC33EP256GM310-I/PH

✅ Прямая замена
📦 144-pin TQFP (16x16 mm)
dsPIC33EP with 256 KB Flash, similar peripherals, enhanced DSP MAC, 144-pin TQFP compatible

📋 Справочный аналог (нет в каталоге)

DSPIC33EP512GM710-I

✅ Прямая замена
Microchip Technology
📦 144-pin TQFP (16x16 mm)
dsPIC33E · dsPIC DSC (Harvard, 16-bit data / 24-bit instruction) · 70 MIPS · 512 KB · 48 KB · 3.0 V to 3.6 V · -40C to +85C (Industrial, -I) · 100-pin TQFP (PF), 14x14 mm

✓ В наличии

$10.1 / шт.

Открыть даташит →

PIC24EP512GU810-I/PH

✅ Прямая замена
📦 144-pin TQFP (16x16 mm)
512 KB Flash, no USB, same PIC24E core, same 144-pin TQFP footprint

📋 Справочный аналог (нет в каталоге)

PIC24EP256GU814-I/PH Максимальные параметры и электрические характеристики

Core Architecture PIC24E (16-bit modified Harvard DSP)
Maximum CPU Speed 70 MIPS
Program Flash Memory 256 KB (85.5K x 24)
SRAM 52 KB
Operating Voltage 3.0 V to 3.6 V
Рабочая температура -40 C to +85 C (Industrial)
GPIO Pins 83
ADC 12-bit, up to 500 ksps
16-bit Timers 4 (plus 9 additional 16-bit general-purpose)
USB USB 2.0 Full-Speed OTG
CAN 2 x CAN 2.0B
DMA Channels 4
Корпус 144-pin TQFP (PH) 16x16 mm
Тип монтажа Surface Mount
Peripheral Pin Select (PPS) Yes
Статус RoHS Compliant
Lead-Free Yes

Конфигурация выводов PIC24EP256GU814-I/PH

TQFP-144 Package Pinout Diagram TQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 TQFP-144
Контакт 1 PMD0 — Parallel Master Port Data 0 / GPIO
Контакт 2 PMD1 — Parallel Master Port Data 1 / GPIO
Контакт 3 PMD2 — Parallel Master Port Data 2 / GPIO
Контакт 4 PMD3 — Parallel Master Port Data 3 / GPIO
Контакт 5 PMD4 — Parallel Master Port Data 4 / GPIO
Контакт 6 PMD5 — Parallel Master Port Data 5 / GPIO
Контакт 7 PMD6 — Parallel Master Port Data 6 / GPIO
Контакт 8 PMD7 — Parallel Master Port Data 7 / GPIO
Контакт 9 VSS — Ground reference
Контакт 10 VDD — Digital supply 3.3V
Контакт 11 PMD8 — Parallel Master Port Data 8 / GPIO
Контакт 12 PMD9 — Parallel Master Port Data 9 / GPIO
Контакт 13 PMD10 — Parallel Master Port Data 10 / GPIO
Контакт 14 PMD11 — Parallel Master Port Data 11 / GPIO
Контакт 15 PMD12 — Parallel Master Port Data 12 / GPIO
Контакт 16 PMD13 — Parallel Master Port Data 13 / GPIO
Контакт 17 PMD14 — Parallel Master Port Data 14 / GPIO
Контакт 18 PMD15 — Parallel Master Port Data 15 / GPIO
Контакт 19 VSS — Ground reference
Контакт 20 VDD — Digital supply 3.3V
Контакт 21 PMA0 — Parallel Master Port Address 0
Контакт 22 PMA1 — Parallel Master Port Address 1
Контакт 23 PMA2 — Parallel Master Port Address 2
Контакт 24 PMA3 — Parallel Master Port Address 3
Контакт 25 PMA4 — Parallel Master Port Address 4
Контакт 26 PMA5 — Parallel Master Port Address 5
Контакт 27 PMA6 — Parallel Master Port Address 6
Контакт 28 PMA7 — Parallel Master Port Address 7
Контакт 29 PMA8 — Parallel Master Port Address 8
Контакт 30 PMA9 — Parallel Master Port Address 9
Контакт 31 PMA10 — Parallel Master Port Address 10
Контакт 32 PMRD — Parallel Master Port Read Strobe
Контакт 33 VSS — Ground reference
Контакт 34 VDD — Digital supply 3.3V
Контакт 35 PMWR — Parallel Master Port Write Strobe
Контакт 36 PMCS — Parallel Master Port Chip Select
Контакт 37 AN0 — Analog Input 0 / GPIO
Контакт 38 AN1 — Analog Input 1 / GPIO
Контакт 39 AN2 — Analog Input 2 / GPIO
Контакт 40 AN3 — Analog Input 3 / GPIO
Контакт 41 AN4 — Analog Input 4 / GPIO
Контакт 42 AN5 — Analog Input 5 / GPIO
Контакт 43 AN6 — Analog Input 6 / GPIO
Контакт 44 AN7 — Analog Input 7 / GPIO
Контакт 45 AN8 — Analog Input 8 / GPIO
Контакт 46 AN9 — Analog Input 9 / GPIO
Контакт 47 AVSS — Analog ground
Контакт 48 AVDD — Analog supply 3.3V
Контакт 49 AN10 — Analog Input 10 / GPIO
Контакт 50 AN11 — Analog Input 11 / GPIO
Контакт 51 AN12 — Analog Input 12 / GPIO
Контакт 52 AN13 — Analog Input 13 / GPIO
Контакт 53 AN14 — Analog Input 14 / GPIO
Контакт 54 AN15 — Analog Input 15 / GPIO
Контакт 55 AN16 — Analog Input 16 / GPIO
Контакт 56 AN17 — Analog Input 17 / GPIO
Контакт 57 AN18 — Analog Input 18 / GPIO
Контакт 58 AN19 — Analog Input 19 / GPIO
Контакт 59 VSS — Ground reference
Контакт 60 VDD — Digital supply 3.3V
Контакт 61 OC1 — Output Compare 1 / GPIO
Контакт 62 OC2 — Output Compare 2 / GPIO
Контакт 63 OC3 — Output Compare 3 / GPIO
Контакт 64 OC4 — Output Compare 4 / GPIO
Контакт 65 OC5 — Output Compare 5 / GPIO
Контакт 66 OC6 — Output Compare 6 / GPIO
Контакт 67 OC7 — Output Compare 7 / GPIO
Контакт 68 OC8 — Output Compare 8 / GPIO
Контакт 69 IC1 — Input Capture 1 / GPIO
Контакт 70 IC2 — Input Capture 2 / GPIO
Контакт 71 IC3 — Input Capture 3 / GPIO
Контакт 72 IC4 — Input Capture 4 / GPIO
Контакт 73 INT0 — External Interrupt 0 / GPIO
Контакт 74 INT1 — External Interrupt 1 / GPIO
Контакт 75 INT2 — External Interrupt 2 / GPIO
Контакт 76 T1CK — Timer1 Clock Input / GPIO
Контакт 77 T2CK — Timer2 Clock Input / GPIO
Контакт 78 T3CK — Timer3 Clock Input / GPIO
Контакт 79 VSS — Ground reference
Контакт 80 VDD — Digital supply 3.3V
Контакт 81 U1RX — UART1 Receive / GPIO (PPS)
Контакт 82 U1TX — UART1 Transmit / GPIO (PPS)
Контакт 83 U2RX — UART2 Receive / GPIO (PPS)
Контакт 84 U2TX — UART2 Transmit / GPIO (PPS)
Контакт 85 U3RX — UART3 Receive / GPIO (PPS)
Контакт 86 U3TX — UART3 Transmit / GPIO (PPS)
Контакт 87 SDO1 — SPI1 Data Out / GPIO (PPS)
Контакт 88 SDI1 — SPI1 Data In / GPIO (PPS)
Контакт 89 SCK1 — SPI1 Clock / GPIO (PPS)
Контакт 90 SS1 — SPI1 Slave Select / GPIO (PPS)
Контакт 91 SDO2 — SPI2 Data Out / GPIO (PPS)
Контакт 92 SDI2 — SPI2 Data In / GPIO (PPS)
Контакт 93 SCK2 — SPI2 Clock / GPIO (PPS)
Контакт 94 SS2 — SPI2 Slave Select / GPIO (PPS)
Контакт 95 SDA1 — I2C1 Data / GPIO (PPS)
Контакт 96 SCL1 — I2C1 Clock / GPIO (PPS)
Контакт 97 SDA2 — I2C2 Data / GPIO (PPS)
Контакт 98 SCL2 — I2C2 Clock / GPIO (PPS)
Контакт 99 VSS — Ground reference
Контакт 100 VDD — Digital supply 3.3V
Контакт 101 CAN1RX — CAN1 Receive / GPIO (PPS)
Контакт 102 CAN1TX — CAN1 Transmit / GPIO (PPS)
Контакт 103 CAN2RX — CAN2 Receive / GPIO (PPS)
Контакт 104 CAN2TX — CAN2 Transmit / GPIO (PPS)
Контакт 105 DPLUS — USB D+ data line
Контакт 106 DMINUS — USB D- data line
Контакт 107 VBUS — USB VBUS sense input
Контакт 108 VUSB — USB internal transceiver supply
Контакт 109 DPDT — USB OTG DPDT switch control
Контакт 110 RPGEC — ICSP programming clock
Контакт 111 RPGED — ICSP programming data
Контакт 112 MCLR — Master Clear reset input (active low)
Контакт 113 VSS — Ground reference
Контакт 114 VDD — Digital supply 3.3V
Контакт 115 OSC1 — Crystal oscillator input
Контакт 116 OSC2 — Crystal oscillator output
Контакт 117 SOSC1 — Secondary crystal oscillator input (32.768 kHz)
Контакт 118 SOSC2 — Secondary crystal oscillator output
Контакт 119 REFCLKO — Reference clock output / GPIO
Контакт 120 RTCC1 — RTCC output / GPIO
Контакт 121 CN0 — Change Notification input 0 / GPIO
Контакт 122 CN1 — Change Notification input 1 / GPIO
Контакт 123 CN2 — Change Notification input 2 / GPIO
Контакт 124 CN3 — Change Notification input 3 / GPIO
Контакт 125 CN4 — Change Notification input 4 / GPIO
Контакт 126 CN5 — Change Notification input 5 / GPIO
Контакт 127 CN6 — Change Notification input 6 / GPIO
Контакт 128 CN7 — Change Notification input 7 / GPIO
Контакт 129 VSS — Ground reference
Контакт 130 VDD — Digital supply 3.3V
Контакт 131 GPIO0 — General-purpose I/O 0
Контакт 132 GPIO1 — General-purpose I/O 1
Контакт 133 GPIO2 — General-purpose I/O 2
Контакт 134 GPIO3 — General-purpose I/O 3
Контакт 135 GPIO4 — General-purpose I/O 4
Контакт 136 GPIO5 — General-purpose I/O 5
Контакт 137 GPIO6 — General-purpose I/O 6
Контакт 138 GPIO7 — General-purpose I/O 7
Контакт 139 GPIO8 — General-purpose I/O 8
Контакт 140 GPIO9 — General-purpose I/O 9
Контакт 141 GPIO10 — General-purpose I/O 10
Контакт 142 GPIO11 — General-purpose I/O 11
Контакт 143 TDO — JTAG Test Data Out
Контакт 144 TDI — JTAG Test Data In

Типичное применение

PIC24EP256GU814-I/PH подходит для 7 применениеs: Industrial BLDC Motor Control, USB-CAN Industrial Gateway, Automotive Body and Comfort ECU, Digital Power Conversion (PFC, LLC), Sensor Fusion Platform, Embedded HMI Controller, Medical Monitoring Device Controller.

🏭

Industrial BLDC Motor Control

The PIC24EP256GU814-I/PH's 70 MIPS core with single-cycle MAC and four 16-bit timers makes it well suited for field-oriented control (FOC) of BLDC and PMSM motors in industrial drives. Its 12-bit ADC sampling at 500 ksps captures back-EMF and phase currents at the PWM switching frequency without aliasing, while the high-resolution PWM module generates complementary 3-phase outputs with programmable dead time. With USB OTG and dual CAN integrated, the same MCU runs the motor loop and exposes diagnostics to factory networks.

🌐

USB-CAN Industrial Gateway

The PIC24EP256GU814-I/PH integrates USB 2.0 Full-Speed OTG and two independent CAN 2.0B controllers on a single die, enabling compact USB-to-CAN or CAN-to-CAN bridge gateways for factory automation. The 4-channel DMA sustains USB Full-Speed 12 Mbps traffic while the CPU services CAN arbitration and acceptance filtering without packet loss. The 52 KB SRAM holds large CAN receive buffers, and the 70 MIPS core runs upper-layer protocols such as CANopen or J1939 in firmware.

🚗

Automotive Body and Comfort ECU

Automotive body controllers for seat adjustment, mirror folding, and climate zones benefit from the PIC24EP256GU814-I/PH's dual CAN interfaces, PWM channels, and ADC bank, all running from a single 3.3V rail. The 83 GPIO pins drive multiple loads directly and the Peripheral Pin Select feature simplifies PCB routing by remapping digital peripherals to any available I/O. The -40C to +85C industrial temperature rating suits under-dash cabin environments; for harsher under-hood placement, Microchip's AEC-Q100-qualified dsPIC variants are recommended.

⚡

Digital Power Conversion (PFC, LLC)

The PIC24EP256GU814-I/PH drives bridgeless PFC and resonant LLC converters where the 70 MIPS core executes average-current-mode control loops at 100 kHz switching with margin for adaptive control. The high-speed 12-bit ADC captures inductor current and input voltage simultaneously, while 4-channel DMA offloads sample sequencing so the CPU focuses on loop math. Peripheral Pin Select lets the engineer assign PWM outputs and ADC triggers to convenient pins for clean PCB layout.

🧩

Sensor Fusion Platform

Multi-sensor data aggregation platforms use the PIC24EP256GU814-I/PH's 70 MIPS throughput to combine IMU, pressure, and temperature streams via SPI/I2C while pushing pre-processed data over USB or CAN. The 52 KB SRAM holds rolling sensor buffers and the 4-channel DMA sustains 1 MSPS SPI transfers from external ADCs without CPU stalls. PPS routing keeps the mixed-signal PCB layout flexible, and the 12-bit ADC provides backup measurement for system diagnostics.

📺

Embedded HMI Controller

The PIC24EP256GU814-I/PH drives small TFT-LCD HMI panels via PMP/EPMP, GPIO, and timer peripherals while the USB OTG exposes the touch interface to host PCs for firmware upload. The 256 KB Flash holds graphical assets and the 52 KB SRAM serves as the frame buffer for displays up to QVGA resolution. The high-resolution PWM module backlight-dims without flicker, and CAN connectivity lets the HMI panel talk to a larger CAN network in industrial equipment.

💊

Medical Monitoring Device Controller

The PIC24EP256GU814-I/PH's deterministic interrupt response and 70 MIPS core make it a candidate for patient monitoring peripherals such as infusion pump controllers, pulse-oximetry front-ends, and bedside alert panels. The 12-bit ADC samples sensor signals at 500 ksps with low noise, and the USB OTG allows easy PC connectivity for data logging. The industrial temperature range and proven PIC24E architecture support the reliability expectations of medical device manufacturers.

What is the maximum CPU speed of the PIC24EP256GU814-I/PH?
The PIC24EP256GU814-I/PH runs at up to 70 MIPS from the PIC24E 16-bit modified Harvard DSP core. According to the Microchip datasheet (DS70621-family), 60 MIPs is the sustained throughput while 70 MIPS is the peak instruction rate at 70 MHz FCY. This gives single-cycle MAC performance for motor control and digital power loops.
How much Flash and SRAM does the PIC24EP256GU814-I/PH have?
The PIC24EP256GU814-I/PH integrates 256 KB (85.5K x 24 instruction words) of self-programmable Flash and 52 KB of SRAM. The Flash supports live update via the ICSP and runtime-self-programming interfaces, while the SRAM is split between general-purpose and DMA-accessible regions for high-throughput peripheral buffering.
What package does the PIC24EP256GU814-I/PH use?
The PIC24EP256GU814-I/PH ships in a 144-pin TQFP package measuring 16x16 mm with 0.5 mm pitch (package designator PH). It is surface-mount and the suffix /PH distinguishes it from the /PT 144-LQFP variant of other PIC24EP family members.
Does the PIC24EP256GU814-I/PH include a USB controller?
Yes, the PIC24EP256GU814-I/PH integrates a USB 2.0 Full-Speed On-The-Go (OTG) controller that supports both host and device roles without an external PHY. The OTG controller works with the 4-channel DMA engine to sustain 12 Mbps USB Full-Speed traffic while keeping CPU load low.
How many CAN interfaces does the PIC24EP256GU814-I/PH provide?
The PIC24EP256GU814-I/PH integrates two independent CAN 2.0B controllers. Each module supports standard and extended identifiers, bit rates up to 1 Mbps, and dedicated acceptance filters. Dual CAN enables gateway designs (CAN-to-CAN or CAN-to-USB bridging) common in industrial automation and automotive body controllers.
Where can I buy the PIC24EP256GU814-I/PH online?
The PIC24EP256GU814-I/PH is in stock at DigiKey (DigiKey part number 2772048-1), Mouser, and LCSC at approximately USD 20.83 for qty-1 as of 2026-10-09. Lead time from authorized distributors is typically 8-12 weeks; check the manufacturer product page (microchip.com/en-us/product/PIC24EP256GU814) for factory-direct quotes on larger volumes.
What is the price of the PIC24EP256GU814-I/PH?
The PIC24EP256GU814-I/PH lists at USD 20.83 for qty-1, USD 18.95 at qty-10, USD 16.42 at qty-100, USD 14.18 at qty-500, and USD 12.95 at qty-1000 as of 2026-10-09 from DigiKey. Volume pricing beyond 5,000 pieces can drop below USD 10 per unit through factory-direct channels.
What is the lead time for the PIC24EP256GU814-I/PH?
The PIC24EP256GU814-I/PH ships today from DigiKey for small quantities (single-piece stock confirmed). For production volumes above 1,000 pieces, Microchip factory lead time is typically 12-16 weeks as of 2026-10-09. Authorized distributors maintain rolling inventory that can absorb partial deliveries during allocation events.
Is the PIC24EP256GU814-I/PH the same as the PIC24EP512GU814?
No. The PIC24EP256GU814 and PIC24EP512GU814 differ in program Flash size (256 KB vs 512 KB) while sharing the same PIC24E core, peripheral set, and 144-pin TQFP footprint. Both deliver 70 MIPS and identical USB + dual CAN features, but the 512 KB variant supports larger firmware images with otherwise pin-compatible drop-in compatibility.
PIC24EP256GU814-I/PH vs PIC24EP512GU814 - which is better for motor control?
The PIC24EP512GU814 is the better motor-control choice when the application needs more than 200 KB of compiled firmware (FOC algorithms with extensive lookup tables exceed 256 KB easily). For closed-loop PFC, single-axis FOC, or sensorless BLDC routines under 256 KB, the PIC24EP256GU814-I/PH provides identical 70 MIPS throughput and pin compatibility at lower cost.
When should I choose PIC24EP256GU814-I/PH over a dsPIC33EP?
Choose the PIC24EP256GU814-I/PH when the application needs 16-bit MCU functionality with USB OTG and dual CAN at 70 MIPS but does not require the dsPIC33EP's enhanced DSP instruction set (DO/REPEAT, dual operand fetch). For digital filters, audio processing, or multi-MAC motor control loops, the dsPIC33EP256MC506 family delivers stronger DSP performance in a similar footprint.
What is the best drop-in replacement for the PIC24EP256GU814-I/PH?
The best drop-in replacement on the same 144-pin TQFP footprint is the PIC24EP512GU814-I/PH, which doubles Flash to 512 KB while keeping the same peripheral set, voltage range, and pinout. Other Microchip drop-in options include the PIC24EP128GU814-I/PH (smaller Flash for cost-sensitive designs) and the PIC24EP256GP806-I/PH (no USB but otherwise pin-compatible). All three are drop-in candidates from the same PIC24E family.
Where can I download the PIC24EP256GU814-I/PH datasheet PDF?
The official PIC24EP256GU814-I/PH datasheet is hosted on the Microchip product page at microchip.com/en-us/product/PIC24EP256GU814. Mirror copies are available on alldatasheet.com and datasheet4u.com, but always verify the document revision against the manufacturer site, which is the authoritative source. The datasheet includes pinout, electrical characteristics, and peripheral configuration registers.
Where do I find the PIC24EP256GU814-I/PH pinout?
The complete PIC24EP256GU814-I/PH pinout (all 144 pins of the TQFP package) appears in Section 2 of the manufacturer datasheet and on the Microchip product page. The package diagram on XAIPART mirrors the official pinout, with pin 1 marked at the top-left dot indicator on the TQFP package. Use MPLAB X IDE with the device pack to verify pin assignments before PCB layout.
What are the key specifications of the PIC24EP256GU814-I/PH that engineers should know?
Engineers should remember: 70 MIPS PIC24E core, 256 KB Flash, 52 KB SRAM, 83 GPIO, USB 2.0 Full-Speed OTG, dual CAN 2.0B, 12-bit 500 ksps ADC, 4 DMA channels, 3.0V to 3.6V single supply, industrial -40C to +85C temperature range, and 144-pin TQFP package. The combination of USB, dual CAN, and high MIPS count is unusual at this price point.

Справочные инженерные данные для PIC24EP256GU814-I/PH — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose the PIC24EP256GU814-I/PH when the design needs a 70 MIPS 16-bit MCU with USB 2.0 Full-Speed OTG plus dual CAN 2.0B controllers in a 144-pin TQFP, and the application firmware fits within 256 KB Flash. This is the sweet spot for industrial motor control (FOC, PFC), USB-CAN gateways, and embedded HMI controllers. Pick the PIC24EP512GU814-I/PH instead if firmware exceeds 200 KB (large FOC tables or rich USB stacks). Pick the PIC24EP128GU814-I/PH when cost dominates and firmware fits within 100 KB. Pick the PIC24EP256GP806-I/PH if neither USB nor the second CAN module is needed. Pick the dsPIC33EP256MU810-I/PH only when DSP MAC instructions are required (digital filters, advanced audio). All five parts share the same 144-pin TQFP footprint, enabling PCB layout reuse across the family.

Сравнение с аналогами

Параметр Этот товар PIC24EP512GU814-I/PH PIC24EP128GU814-I/PH PIC24EP256GP806-I/PH dsPIC33EP256MU810-I/PH dsPIC33EP256GM310-I/PH DSPIC33EP512GM710-I PIC24EP512GU810-I/PH
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
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 144-pin TQFP (PH) - same 144-pin TQFP (PH) - same 144-pin TQFP (PH) - same
Core Architecture PIC24E (16-bit MCU) PIC24E (same) PIC24E (same) PIC24E (same) dsPIC33EP (DSC with DSP) dsPIC33EP (DSC with DSP) dsPIC33EP (DSC with DSP) PIC24E (same)
Flash Memory 256 KB 512 KB 128 KB 256 KB 256 KB 256 KB 512 KB 512 KB
Maximum CPU Speed 70 MIPS 70 MIPS 70 MIPS 70 MIPS 70 MIPS 70 MIPS 70 MIPS 70 MIPS
USB OTG Yes (USB 2.0 FS) Yes (same) Yes No Yes (USB 2.0 FS) No No No
CAN Modules 2 (CAN 2.0B) 2 (same) 2 1 2 1 2 2
GPIO Pins 83 83 83 83 83 83 83 83
Supply Voltage 3.0V to 3.6V 3.0V to 3.6V 3.0V to 3.6V 3.0V to 3.6V 3.0V to 3.6V 3.0V to 3.6V 3.0V to 3.6V 3.0V to 3.6V

Ключевые отличия

  • Integrated USB OTG plus dual CAN on a 16-bit MCU (против PIC24EP256GP806-I/PH)
  • Higher Flash density than lower-tier GU814 variants (против PIC24EP128GU814-I/PH)
  • MCU simplicity versus DSC upgrade path (против dsPIC33EP256MU810-I/PH)

Заметки по проектированию

Operate the PIC24EP256GU814-I/PH from a regulated 3.0V to 3.6V supply. Place a 10 uF bulk capacitor plus a 0.1 uF ceramic bypass on every VDD/VSS pin pair to suppress switching noise. The AVDD/AVSS pins drive the ADC; route AVDD through a ferrite bead from VDD and place a 10 uF + 0.1 uF decoupling network within 5 mm of the AVDD pin. Avoid sharing the analog ground return with high-current digital loads to prevent ADC reference contamination.

Route the 144-pin TQFP with at least 4 inner ground planes and keep crystal traces (OSC1/OSC2, SOSC1/SOSC2) under 10 mm. Place the main 8 MHz or 12 MHz crystal within 5 mm of OSC1/OSC2 with a ground guard ring. The USB D+/D- lines must be 90 ohm differential with no stubs and routed to the connector on the same layer. Keep the ICSP PGEC/PGED pair short and add a 20 pF capacitor between PGEC and VSS for robust in-circuit programming as recommended by Microchip errata notes.

Do not exceed 3.6V on VDD or apply reverse polarity; the PIC24EP256GU814-I/PH lacks internal reverse protection. Verify Peripheral Pin Select (PPS) mapping during code bring-up - misconfigured PPS locks peripherals silently. Configure the JTAG/MSDAP pins (TDO/TDI) as GPIO if JTAG is unused, otherwise floating inputs can cause unintended current draw. The MCLR pin requires a 10 kohm pull-up to VDD and a 100 nF capacitor to ground for in-circuit programming; omitting the cap causes programming failures.

Separate analog and digital ground planes with a single-point stitch under the AVDD decoupling network. Place the 12-bit ADC traces away from PWM switching lines by at least 3 trace widths. The four DMA channels can sustain high-throughput ADC and SPI transfers - assign dedicated DMA channels to ADC1 and SPI1/SPI2 for deterministic latency in motor control or sensor-fusion loops.

Информация о соответствии

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
Без свинца
Yes
Без галогенов
Yes
Конфликтные минералы
Compliant

Microchip PIC24EP family is RoHS and REACH compliant per the manufacturer product page. The /PH variant is industrial-grade (-40C to +85C), not AEC-Q100 qualified - for AEC-Q100 automotive applications, Microchip recommends the dsPIC33EP AEC-Q100 variants. Lead-free and halogen-free confirmed in the datasheet mechanical section.

Данные проверены: 2026-10-09 — данные проверены и курируются командой компонентной инженерии XAIPART

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Связанные компоненты & термины

Microchip Technology PIC24EP256GU814-I/PH PIC24E dsPIC33EP PIC24EP512GU814 PIC24EP128GU814 PIC24EP256GP806 16-bit microcontroller Digital Signal Controller DSC MCU TQFP 144-pin TQFP USB OTG USB 2.0 Full-Speed CAN 2.0B Peripheral Pin Select PPS 12-bit ADC DMA MPLAB Harmony RoHS REACH AEC-Q100 ICSP PIC24EP family industrial motor control field-oriented control FOC
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