PIC24EP256GU814-I/PH - 70 MIPS 16-bit MCU, 256KB Flash, USB, Dual CAN | Microchip
料号： PIC24EP256GU814-I/PH ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 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 |
PIC24EP256GU814-I/PH 概述
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.
直接替换替代料： PIC24EP256GU814-I/PH ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC24EP256GU814-I/PH （相同外形与封装尺寸） ——差异在于 ADC, Operating Temperature, Package, CAN, CPU Performance.
快速对比工具——选择替代料号进行并排对比：
PIC24EP512GU814-I/PH
✅ 直接替换📋 参考替代料（不在目录中）
PIC24EP128GU814-I/PH
✅ 直接替换📋 参考替代料（不在目录中）
PIC24EP256GP806-I/PH
✅ 直接替换📋 参考替代料（不在目录中）
dsPIC33EP256MU810-I/PH
✅ 直接替换📋 参考替代料（不在目录中）
dsPIC33EP256GM310-I/PH
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33EP512GM710-I
✅ 直接替换✓ 有现货
$10.1 / 个
查看数据手册 →PIC24EP512GU810-I/PH
✅ 直接替换📋 参考替代料（不在目录中）
PIC24EP256GU814-I/PH 最大额定值与电气特性
| 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 |
| 工作温度 | -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 |
| 封装 | 144-pin TQFP (PH) 16x16 mm |
| 安装类型 | Surface Mount |
| Peripheral Pin Select (PPS) | Yes |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
PIC24EP256GU814-I/PH 引脚配置
| 引脚 1 | PMD0 — Parallel Master Port Data 0 / GPIO |
| 引脚 2 | PMD1 — Parallel Master Port Data 1 / GPIO |
| 引脚 3 | PMD2 — Parallel Master Port Data 2 / GPIO |
| 引脚 4 | PMD3 — Parallel Master Port Data 3 / GPIO |
| 引脚 5 | PMD4 — Parallel Master Port Data 4 / GPIO |
| 引脚 6 | PMD5 — Parallel Master Port Data 5 / GPIO |
| 引脚 7 | PMD6 — Parallel Master Port Data 6 / GPIO |
| 引脚 8 | PMD7 — Parallel Master Port Data 7 / GPIO |
| 引脚 9 | VSS — Ground reference |
| 引脚 10 | VDD — Digital supply 3.3V |
| 引脚 11 | PMD8 — Parallel Master Port Data 8 / GPIO |
| 引脚 12 | PMD9 — Parallel Master Port Data 9 / GPIO |
| 引脚 13 | PMD10 — Parallel Master Port Data 10 / GPIO |
| 引脚 14 | PMD11 — Parallel Master Port Data 11 / GPIO |
| 引脚 15 | PMD12 — Parallel Master Port Data 12 / GPIO |
| 引脚 16 | PMD13 — Parallel Master Port Data 13 / GPIO |
| 引脚 17 | PMD14 — Parallel Master Port Data 14 / GPIO |
| 引脚 18 | PMD15 — Parallel Master Port Data 15 / GPIO |
| 引脚 19 | VSS — Ground reference |
| 引脚 20 | VDD — Digital supply 3.3V |
| 引脚 21 | PMA0 — Parallel Master Port Address 0 |
| 引脚 22 | PMA1 — Parallel Master Port Address 1 |
| 引脚 23 | PMA2 — Parallel Master Port Address 2 |
| 引脚 24 | PMA3 — Parallel Master Port Address 3 |
| 引脚 25 | PMA4 — Parallel Master Port Address 4 |
| 引脚 26 | PMA5 — Parallel Master Port Address 5 |
| 引脚 27 | PMA6 — Parallel Master Port Address 6 |
| 引脚 28 | PMA7 — Parallel Master Port Address 7 |
| 引脚 29 | PMA8 — Parallel Master Port Address 8 |
| 引脚 30 | PMA9 — Parallel Master Port Address 9 |
| 引脚 31 | PMA10 — Parallel Master Port Address 10 |
| 引脚 32 | PMRD — Parallel Master Port Read Strobe |
| 引脚 33 | VSS — Ground reference |
| 引脚 34 | VDD — Digital supply 3.3V |
| 引脚 35 | PMWR — Parallel Master Port Write Strobe |
| 引脚 36 | PMCS — Parallel Master Port Chip Select |
| 引脚 37 | AN0 — Analog Input 0 / GPIO |
| 引脚 38 | AN1 — Analog Input 1 / GPIO |
| 引脚 39 | AN2 — Analog Input 2 / GPIO |
| 引脚 40 | AN3 — Analog Input 3 / GPIO |
| 引脚 41 | AN4 — Analog Input 4 / GPIO |
| 引脚 42 | AN5 — Analog Input 5 / GPIO |
| 引脚 43 | AN6 — Analog Input 6 / GPIO |
| 引脚 44 | AN7 — Analog Input 7 / GPIO |
| 引脚 45 | AN8 — Analog Input 8 / GPIO |
| 引脚 46 | AN9 — Analog Input 9 / GPIO |
| 引脚 47 | AVSS — Analog ground |
| 引脚 48 | AVDD — Analog supply 3.3V |
| 引脚 49 | AN10 — Analog Input 10 / GPIO |
| 引脚 50 | AN11 — Analog Input 11 / GPIO |
| 引脚 51 | AN12 — Analog Input 12 / GPIO |
| 引脚 52 | AN13 — Analog Input 13 / GPIO |
| 引脚 53 | AN14 — Analog Input 14 / GPIO |
| 引脚 54 | AN15 — Analog Input 15 / GPIO |
| 引脚 55 | AN16 — Analog Input 16 / GPIO |
| 引脚 56 | AN17 — Analog Input 17 / GPIO |
| 引脚 57 | AN18 — Analog Input 18 / GPIO |
| 引脚 58 | AN19 — Analog Input 19 / GPIO |
| 引脚 59 | VSS — Ground reference |
| 引脚 60 | VDD — Digital supply 3.3V |
| 引脚 61 | OC1 — Output Compare 1 / GPIO |
| 引脚 62 | OC2 — Output Compare 2 / GPIO |
| 引脚 63 | OC3 — Output Compare 3 / GPIO |
| 引脚 64 | OC4 — Output Compare 4 / GPIO |
| 引脚 65 | OC5 — Output Compare 5 / GPIO |
| 引脚 66 | OC6 — Output Compare 6 / GPIO |
| 引脚 67 | OC7 — Output Compare 7 / GPIO |
| 引脚 68 | OC8 — Output Compare 8 / GPIO |
| 引脚 69 | IC1 — Input Capture 1 / GPIO |
| 引脚 70 | IC2 — Input Capture 2 / GPIO |
| 引脚 71 | IC3 — Input Capture 3 / GPIO |
| 引脚 72 | IC4 — Input Capture 4 / GPIO |
| 引脚 73 | INT0 — External Interrupt 0 / GPIO |
| 引脚 74 | INT1 — External Interrupt 1 / GPIO |
| 引脚 75 | INT2 — External Interrupt 2 / GPIO |
| 引脚 76 | T1CK — Timer1 Clock Input / GPIO |
| 引脚 77 | T2CK — Timer2 Clock Input / GPIO |
| 引脚 78 | T3CK — Timer3 Clock Input / GPIO |
| 引脚 79 | VSS — Ground reference |
| 引脚 80 | VDD — Digital supply 3.3V |
| 引脚 81 | U1RX — UART1 Receive / GPIO (PPS) |
| 引脚 82 | U1TX — UART1 Transmit / GPIO (PPS) |
| 引脚 83 | U2RX — UART2 Receive / GPIO (PPS) |
| 引脚 84 | U2TX — UART2 Transmit / GPIO (PPS) |
| 引脚 85 | U3RX — UART3 Receive / GPIO (PPS) |
| 引脚 86 | U3TX — UART3 Transmit / GPIO (PPS) |
| 引脚 87 | SDO1 — SPI1 Data Out / GPIO (PPS) |
| 引脚 88 | SDI1 — SPI1 Data In / GPIO (PPS) |
| 引脚 89 | SCK1 — SPI1 Clock / GPIO (PPS) |
| 引脚 90 | SS1 — SPI1 Slave Select / GPIO (PPS) |
| 引脚 91 | SDO2 — SPI2 Data Out / GPIO (PPS) |
| 引脚 92 | SDI2 — SPI2 Data In / GPIO (PPS) |
| 引脚 93 | SCK2 — SPI2 Clock / GPIO (PPS) |
| 引脚 94 | SS2 — SPI2 Slave Select / GPIO (PPS) |
| 引脚 95 | SDA1 — I2C1 Data / GPIO (PPS) |
| 引脚 96 | SCL1 — I2C1 Clock / GPIO (PPS) |
| 引脚 97 | SDA2 — I2C2 Data / GPIO (PPS) |
| 引脚 98 | SCL2 — I2C2 Clock / GPIO (PPS) |
| 引脚 99 | VSS — Ground reference |
| 引脚 100 | VDD — Digital supply 3.3V |
| 引脚 101 | CAN1RX — CAN1 Receive / GPIO (PPS) |
| 引脚 102 | CAN1TX — CAN1 Transmit / GPIO (PPS) |
| 引脚 103 | CAN2RX — CAN2 Receive / GPIO (PPS) |
| 引脚 104 | CAN2TX — CAN2 Transmit / GPIO (PPS) |
| 引脚 105 | DPLUS — USB D+ data line |
| 引脚 106 | DMINUS — USB D- data line |
| 引脚 107 | VBUS — USB VBUS sense input |
| 引脚 108 | VUSB — USB internal transceiver supply |
| 引脚 109 | DPDT — USB OTG DPDT switch control |
| 引脚 110 | RPGEC — ICSP programming clock |
| 引脚 111 | RPGED — ICSP programming data |
| 引脚 112 | MCLR — Master Clear reset input (active low) |
| 引脚 113 | VSS — Ground reference |
| 引脚 114 | VDD — Digital supply 3.3V |
| 引脚 115 | OSC1 — Crystal oscillator input |
| 引脚 116 | OSC2 — Crystal oscillator output |
| 引脚 117 | SOSC1 — Secondary crystal oscillator input (32.768 kHz) |
| 引脚 118 | SOSC2 — Secondary crystal oscillator output |
| 引脚 119 | REFCLKO — Reference clock output / GPIO |
| 引脚 120 | RTCC1 — RTCC output / GPIO |
| 引脚 121 | CN0 — Change Notification input 0 / GPIO |
| 引脚 122 | CN1 — Change Notification input 1 / GPIO |
| 引脚 123 | CN2 — Change Notification input 2 / GPIO |
| 引脚 124 | CN3 — Change Notification input 3 / GPIO |
| 引脚 125 | CN4 — Change Notification input 4 / GPIO |
| 引脚 126 | CN5 — Change Notification input 5 / GPIO |
| 引脚 127 | CN6 — Change Notification input 6 / GPIO |
| 引脚 128 | CN7 — Change Notification input 7 / GPIO |
| 引脚 129 | VSS — Ground reference |
| 引脚 130 | VDD — Digital supply 3.3V |
| 引脚 131 | GPIO0 — General-purpose I/O 0 |
| 引脚 132 | GPIO1 — General-purpose I/O 1 |
| 引脚 133 | GPIO2 — General-purpose I/O 2 |
| 引脚 134 | GPIO3 — General-purpose I/O 3 |
| 引脚 135 | GPIO4 — General-purpose I/O 4 |
| 引脚 136 | GPIO5 — General-purpose I/O 5 |
| 引脚 137 | GPIO6 — General-purpose I/O 6 |
| 引脚 138 | GPIO7 — General-purpose I/O 7 |
| 引脚 139 | GPIO8 — General-purpose I/O 8 |
| 引脚 140 | GPIO9 — General-purpose I/O 9 |
| 引脚 141 | GPIO10 — General-purpose I/O 10 |
| 引脚 142 | GPIO11 — General-purpose I/O 11 |
| 引脚 143 | TDO — JTAG Test Data Out |
| 引脚 144 | TDI — JTAG Test Data In |
典型应用
PIC24EP256GU814-I/PH 适用于 7 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： PIC24EP256GU814-I/PH ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Integrated USB OTG plus dual CAN on a 16-bit MCU （对比 PIC24EP256GP806-I/PH)
- Higher Flash density than lower-tier GU814 variants （对比 PIC24EP128GU814-I/PH)
- MCU simplicity versus DSC upgrade path （对比 dsPIC33EP256MU810-I/PH)
设计说明
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.
合规信息
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.
