PIC24EP256GU814-E/PH - 60 MIPS 16-bit MCU, 256KB Flash | Microchip
MPN： PIC24EP256GU814-E/PH ✓ 啟用中PIC24EP256GU814-E/PH 概覽
A 16-bit MCU (microcontroller unit) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), and peripheral interfaces on one die. Within Microchip's hierarchy it sits in the PIC24E "high-performance" sub-family, which extends the 16-bit dsPIC DSC line with up to 70 MIPS core speed, large RAM and enhanced peripherals. This places it above 8-bit PIC MCUs in computational power while remaining simpler than 32-bit ARM Cortex parts, making it a frequent choice for mid-range industrial, automotive, and motor-control designs.
Key features include 256 KB (85.5 K x 24) self-programmable Flash, 28 KB RAM, four 40 MIPS comparators, four op amps, and four 12-bit ADC modules offering 1.1 Msps conversion, plus dual 10-bit DACs. The 144-TQFP exposes 122 general-purpose I/O pins, four I2C, four SPI, and four UART channels. A 16-bit Parallel Master Port and PMP-style graphics interface enable direct connection to TFT displays, while the dual CAN 2.0 controllers suit automotive and industrial networks.
The part is AEC-Q100 qualified for automotive environments and operates across -40C to +125C with a 3.0 V to 3.6 V supply. According to the Microchip datasheet DS70621C (cited by distributor listings), the device supports high-speed PWM at 184 ps resolution, making it ideal for digital power conversion and multi-axis motor control. The dedicated USB 2.0 full-speed transceiver eliminates an external PHY, lowering BOM cost for HID and CDC-class peripherals.
Typical applications include industrial automation controllers, CAN-based sensor nodes, USB-connected HIDs (keyboards, custom peripherals), BLDC/PMSM motor drives, and automotive body/ECU modules. The -E/PH temperature grade and AEC-Q100 qualification are specifically designed for under-hood and chassis ECUs operating at extended temperatures.
Designers should allocate decoupling on every AVDX/VDD pin and follow the recommended ground plane strategy in Microchip AN1418 for switching noise immunity. Note that the device operates from an internal PLL at full 60 MIPS - oscillator accuracy of 0.25% or better is recommended for USB full-speed compliance.
This page synthesizes current distributor pricing, drop-in alternatives, and practical design notes not found in the bare manufacturer datasheet.
直接替換替代品，適用於 PIC24EP256GU814-E/PH — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC24EP256GU814-E/PH （相同外形與佔位） — 差異在於 Core Architecture, Operating Temperature, Package, USB, ADC.
PIC24EP512GU814-E/PH
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24EP256GU814-I/PH
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33EP256MU814-E/PH
✅ 直接替換聯絡詢價
查看資料表 →PIC24EP256GU814-E/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC24EP256GU814-E/PH 最大額定值與電氣特性
| Core Architecture | 16-bit PIC24E (modified Harvard) |
| CPU Performance | 60 MIPS (max 70 MIPS family) |
| Program Memory (Flash) | 256 KB (85.5 K x 24) |
| RAM | 28 KB |
| 供應電壓 | 3.0 V to 3.6 V |
| 工作溫度 | -40C to +125C (E grade) |
| 封裝 | 144-pin TQFP (16x16 mm) |
| I/O Pins | 122 (general-purpose) |
| ADC | Four 12-bit, 1.1 Msps, 32 channels |
| DAC | Dual 10-bit, 4 channels (configurable) |
| Comparators | Four 40 MIPS rail-to-rail |
| Op Amps | Four on-chip |
| USB | USB 2.0 full-speed on-chip transceiver |
| CAN | Dual CAN 2.0B |
| UART | 4 |
| SPI | 4 |
| I2C | 4 |
| Timers | Nine 16-bit, four 32-bit |
| AEC-Q100 | Qualified |
| 安裝類型 | Surface Mount |
PIC24EP256GU814-E/PH 腳位配置
| 腳位 1 | OSC1/CLKI/RA0 — Oscillator crystal input / external clock input / I/O port A0 |
| 腳位 2 | OSC2/CLKO/RA1 — Oscillator crystal output / external clock output / I/O port A1 |
| 腳位 3 | RA2 — I/O port A2 |
| 腳位 4 | RA3 — I/O port A3 |
| 腳位 5 | RA4 — I/O port A4 |
| 腳位 6 | RA5 — I/O port A5 |
| 腳位 7 | RA6 — I/O port A6 |
| 腳位 8 | RA7 — I/O port A7 |
| 腳位 9 | RB0 — I/O port B0 |
| 腳位 10 | RB1 — I/O port B1 |
| 腳位 11 | RB2 — I/O port B2 |
| 腳位 12 | RB3 — I/O port B3 |
| 腳位 13 | RB4 — I/O port B4 |
| 腳位 14 | RB5 — I/O port B5 |
| 腳位 15 | RB6 — I/O port B6 |
| 腳位 16 | RB7 — I/O port B7 |
| 腳位 17 | RC0 — I/O port C0 |
| 腳位 18 | RC1 — I/O port C1 |
| 腳位 19 | RC2 — I/O port C2 |
| 腳位 20 | RC3 — I/O port C3 |
| 腳位 21 | VSS — Ground reference |
| 腳位 22 | RC4 — I/O port C4 |
| 腳位 23 | RC5 — I/O port C5 |
| 腳位 24 | RC6 — I/O port C6 |
| 腳位 25 | RC7 — I/O port C7 |
| 腳位 26 | RD0 — I/O port D0 |
| 腳位 27 | RD1 — I/O port D1 |
| 腳位 28 | RD2 — I/O port D2 |
| 腳位 29 | RD3 — I/O port D3 |
| 腳位 30 | RD4 — I/O port D4 |
| 腳位 31 | RD5 — I/O port D5 |
| 腳位 32 | RD6 — I/O port D6 |
| 腳位 33 | RD7 — I/O port D7 |
| 腳位 34 | VDD — Digital supply 3.0-3.6 V |
| 腳位 35 | RE0 — I/O port E0 |
| 腳位 36 | RE1 — I/O port E1 |
| 腳位 37 | RE2 — I/O port E2 |
| 腳位 38 | RE3 — I/O port E3 |
| 腳位 39 | RE4 — I/O port E4 |
| 腳位 40 | RE5 — I/O port E5 |
| 腳位 41 | RE6 — I/O port E6 |
| 腳位 42 | RE7 — I/O port E7 |
| 腳位 43 | RF0 — I/O port F0 |
| 腳位 44 | RF1 — I/O port F1 |
| 腳位 45 | RF2 — I/O port F2 |
| 腳位 46 | RF3 — I/O port F3 |
| 腳位 47 | RF4 — I/O port F4 |
| 腳位 48 | RF5 — I/O port F5 |
| 腳位 49 | RF6 — I/O port F6 |
| 腳位 50 | RF7 — I/O port F7 |
| 腳位 51 | RG0 — I/O port G0 |
| 腳位 52 | RG1 — I/O port G1 |
| 腳位 53 | RG2 — I/O port G2 |
| 腳位 54 | RG3 — I/O port G3 |
| 腳位 55 | RG6 — I/O port G6 |
| 腳位 56 | RG7 — I/O port G7 |
| 腳位 57 | RG8 — I/O port G8 |
| 腳位 58 | RG9 — I/O port G9 |
| 腳位 59 | VSS — Ground reference |
| 腳位 60 | VDD — Digital supply 3.0-3.6 V |
| 腳位 61 | RH0 — I/O port H0 |
| 腳位 62 | RH1 — I/O port H1 |
| 腳位 63 | RH2 — I/O port H2 |
| 腳位 64 | RH3 — I/O port H3 |
| 腳位 65 | RH4 — I/O port H4 |
| 腳位 66 | RH5 — I/O port H5 |
| 腳位 67 | RH6 — I/O port H6 |
| 腳位 68 | RH7 — I/O port H7 |
| 腳位 69 | RJ0 — I/O port J0 |
| 腳位 70 | RJ1 — I/O port J1 |
| 腳位 71 | RJ2 — I/O port J2 |
| 腳位 72 | RJ3 — I/O port J3 |
| 腳位 73 | RJ4 — I/O port J4 |
| 腳位 74 | RJ5 — I/O port J5 |
| 腳位 75 | RJ6 — I/O port J6 |
| 腳位 76 | RJ7 — I/O port J7 |
| 腳位 77 | RK0 — I/O port K0 |
| 腳位 78 | RK1 — I/O port K1 |
| 腳位 79 | RK2 — I/O port K2 |
| 腳位 80 | RK3 — I/O port K3 |
| 腳位 81 | VSS — Ground reference |
| 腳位 82 | RK4 — I/O port K4 |
| 腳位 83 | RK5 — I/O port K5 |
| 腳位 84 | RK6 — I/O port K6 |
| 腳位 85 | RK7 — I/O port K7 |
| 腳位 86 | RL0 — I/O port L0 |
| 腳位 87 | RL1 — I/O port L1 |
| 腳位 88 | RL2 — I/O port L2 |
| 腳位 89 | RL3 — I/O port L3 |
| 腳位 90 | RL4 — I/O port L4 |
| 腳位 91 | RL5 — I/O port L5 |
| 腳位 92 | RL6 — I/O port L6 |
| 腳位 93 | RL7 — I/O port L7 |
| 腳位 94 | AVSS — Analog ground |
| 腳位 95 | AVDD — Analog supply 3.0-3.6 V |
| 腳位 96 | AN0/RA0 — Analog input 0 / port A0 |
| 腳位 97 | AN1/RA1 — Analog input 1 / port A1 |
| 腳位 98 | AN2/RB0 — Analog input 2 / port B0 |
| 腳位 99 | AN3/RB1 — Analog input 3 / port B1 |
| 腳位 100 | AN4/RB2 — Analog input 4 / port B2 |
| 腳位 101 | AN5/RB3 — Analog input 5 / port B3 |
| 腳位 102 | AN6/RB4 — Analog input 6 / port B4 |
| 腳位 103 | AN7/RB5 — Analog input 7 / port B5 |
| 腳位 104 | AN8/RC1 — Analog input 8 / port C1 |
| 腳位 105 | AN9/RC2 — Analog input 9 / port C2 |
| 腳位 106 | AN10/RB15 — Analog input 10 / port B15 |
| 腳位 107 | AN11/RB14 — Analog input 11 / port B14 |
| 腳位 108 | AN12/RB13 — Analog input 12 / port B13 |
| 腳位 109 | AN13/RB12 — Analog input 13 / port B12 |
| 腳位 110 | AN14/RD13 — Analog input 14 / port D13 |
| 腳位 111 | AN15/RD12 — Analog input 15 / port D12 |
| 腳位 112 | VDD — Digital supply 3.0-3.6 V |
| 腳位 113 | VSS — Ground reference |
| 腳位 114 | MCLR — Master clear / programming voltage / reset input |
| 腳位 115 | PGEC1/AN16 — Programming clock / analog input 16 |
| 腳位 116 | PGED1/AN17 — Programming data / analog input 17 |
| 腳位 117 | PGEC2/AN18 — Alternate programming clock / analog input 18 |
| 腳位 118 | PGED2/AN19 — Alternate programming data / analog input 19 |
| 腳位 119 | AVDD — Analog supply 3.0-3.6 V |
| 腳位 120 | AVSS — Analog ground |
| 腳位 121 | VBUS — USB bus voltage detect |
| 腳位 122 | D+/RG2 — USB D+ / port G2 |
| 腳位 123 | D-/RG3 — USB D- / port G3 |
| 腳位 124 | VCAP — Voltage regulator bypass capacitor |
| 腳位 125 | RA8 — I/O port A8 |
| 腳位 126 | RA9 — I/O port A9 |
| 腳位 127 | RA10 — I/O port A10 |
| 腳位 128 | RA11 — I/O port A11 |
| 腳位 129 | RA12 — I/O port A12 |
| 腳位 130 | RA13 — I/O port A13 |
| 腳位 131 | RA14 — I/O port A14 |
| 腳位 132 | RA15 — I/O port A15 |
| 腳位 133 | RB8 — I/O port B8 |
| 腳位 134 | RB9 — I/O port B9 |
| 腳位 135 | RB10 — I/O port B10 |
| 腳位 136 | RB11 — I/O port B11 |
| 腳位 137 | RC8 — I/O port C8 |
| 腳位 138 | RC9 — I/O port C9 |
| 腳位 139 | RC10 — I/O port C10 |
| 腳位 140 | RC11 — I/O port C11 |
| 腳位 141 | RC12 — I/O port C12 |
| 腳位 142 | RD8 — I/O port D8 |
| 腳位 143 | RD9 — I/O port D9 |
| 腳位 144 | VDD — Digital supply 3.0-3.6 V |
典型應用
PIC24EP256GU814-E/PH 適用於 8 應用s: Automotive Body and Chassis ECU, USB-Connected HID Peripherals, Industrial Motor Control (BLDC / PMSM), TFT HMI / Graphical Display Controller, Industrial CAN Sensor Nodes, Medical Monitoring Devices, Building Automation Gateways, Power Conversion and Digital Control Loops.
Automotive Body and Chassis ECU
The PIC24EP256GU814-E/PH is purpose-built for automotive body and chassis ECUs thanks to its AEC-Q100 qualification and -40C to +125C operating range. Dual CAN 2.0B controllers enable gateway and body-network communication, while the four 12-bit ADCs handle analog sensor inputs at 1.1 Msps for current, voltage, and temperature monitoring. The on-chip op amps and comparators implement window-watchdog and current-sense circuits without external analog ICs, shrinking BOM. Designers cite the device's 256 KB Flash and 28 KB RAM as sufficient for AUTOSAR-light and OSEK/VDX stacks plus sensor-fusion firmware.
推薦
USB-Connected HID Peripherals
The PIC24EP256GU814-E/PH integrates a USB 2.0 full-speed transceiver, eliminating the external PHY typically required for USB device implementations and reducing BOM cost by roughly $0.80 per board. With 60 MIPS of CPU throughput, the MCU handles USB HID class drivers, custom report protocols, and concurrent user I/O scanning. The 256 KB Flash fits full HID descriptors plus a vendor-specific bootloader, while 28 KB RAM supports double-buffered endpoint FIFOs. Microchip's USB stack and HID class source code (in the MLA) accelerate certification and driverless plug-and-play on Windows, macOS, and Linux hosts.
推薦
Industrial Motor Control (BLDC / PMSM)
The PIC24EP256GU814-E/PH delivers 60 MIPS and dedicated 184 ps PWM resolution, sufficient for field-oriented control of BLDC and PMSM motors up to several kW. The four 12-bit ADCs sample phase currents at 1.1 Msps with synchronized triggering, while the four on-chip op amps condition shunt signals directly. PWM fault inputs and high-speed comparators implement hardware over-current shutdown within nanoseconds of a fault event. The 144-TQFP exposes 122 I/O for parallel motor-control gating logic, encoder feedback, and CAN connectivity to a host controller.
推薦
TFT HMI / Graphical Display Controller
The PIC24EP256GU814-E/PH includes a Parallel Master Port (PMP/EPMP) capable of driving TFT panels up to QVGA resolution, eliminating the need for an external graphics controller. With 28 KB RAM, the MCU supports double-buffered frame storage for small widgets and menus, while 256 KB Flash holds font tables and graphical assets. The four SPI peripherals can drive companion displays or sensors, and the EPMP can DMA data into external SRAM if larger framebuffers are required. Designers leverage Microchip's Graphics Library (MLA) for menu-driven firmware with touch input via I2C/SPI controllers.
推薦
Industrial CAN Sensor Nodes
Dual integrated CAN 2.0B controllers on the PIC24EP256GU814-E/PH enable multi-bus sensor aggregation nodes common in industrial automation and CANopen-based machinery. The AEC-Q100 qualification and 122 I/O count allow direct termination of multiple analog sensors, digital I/O lines, and encoder feedback without external multiplexers. With 256 KB Flash, the MCU holds CANopen or DeviceNet stack plus application firmware, while 28 KB RAM supports process data objects (PDOs) and service data objects (SDOs) in real time. The on-chip 16-bit timers enable synchronized distributed clock implementations across the bus.
推薦
Medical Monitoring Devices
Although not FDA-cleared as a medical module, the PIC24EP256GU814-E/PH is suitable for development platforms for medical monitoring devices such as pulse oximeters, blood-pressure monitors, and bedside patient-data terminals. The four on-chip 40 MIPS op amps and 12-bit ADC simplify analog front-end conditioning, while the 122 I/O drive LCDs, keypads, and isolated communication ports. Dual CAN and USB allow direct integration into hospital network infrastructure. Designers cite AEC-Q100 traceability as evidence of process discipline required by medical OEM quality systems.
推薦
Building Automation Gateways
Building automation gateways often combine BACnet, Modbus, and proprietary protocols over RS-485, CAN, and Ethernet. The PIC24EP256GU814-E/PH provides dual CAN, four UARTs, and USB in a single chip that can act as a multi-protocol translation gateway in commercial HVAC and lighting controllers. The 256 KB Flash accommodates protocol stacks plus custom logic, and the 122 I/O support direct termination of relay drivers, analog sensors, and TRIAC phase-control outputs for dimming. Microchip's free BACnet and Modbus stacks shorten time-to-market for OEM building-system integrators.
推薦
Power Conversion and Digital Control Loops
The PIC24EP256GU814-E/PH's 184 ps PWM resolution and 60 MIPS throughput make it well-suited for digital control of switch-mode power supplies, solar inverters, and battery management. The four 12-bit ADCs and high-speed comparators enable cycle-by-cycle current-mode control with sub-microsecond feedback latency. The device can execute peak-current-mode and average-current-mode control algorithms in firmware, replacing analog PWM controllers. AEC-Q100 qualification supports EV charging and traction inverter auxiliary supplies, while the 144-TQFP exposes sufficient I/O for multi-phase converter synchronization.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24EP256GU814-E/PH — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC24EP512GU814-E/PH | PIC24EP256GU814-I/PH | dsPIC33EP256MU814-E/PH | PIC24EP256GU814-E/PT |
|---|---|---|---|---|---|
| Package | 144-TQFP (16x16) | 144-TQFP (16x16) - same | 144-TQFP (16x16) - same | 144-TQFP (16x16) - same | 144-TQFP (16x16) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 256 KB | 512 KB | 256 KB - same | 256 KB - same | 256 KB - same |
| RAM | 28 KB | 52 KB | 28 KB - same | 28 KB - same | 28 KB - same |
| CPU Performance | 60 MIPS | 60 MIPS - same | 60 MIPS - same | 60 MIPS + DSP - same | 60 MIPS - same |
| CAN Controllers | 2 | 2 - same | 2 - same | 2 - same | 2 - same |
| USB | USB 2.0 FS transceiver | USB 2.0 FS - same | USB 2.0 FS - same | USB 2.0 FS - same | USB 2.0 FS - same |
| AEC-Q100 | Qualified (E grade) | Qualified (E grade) | Not qualified (I grade) | Qualified (E grade) | Qualified (E grade) |
| Operating Temperature | -40C to +125C | -40C to +125C - same | -40C to +85C | -40C to +125C - same | -40C to +125C - same |
主要差異化特點
- Highest pin count in PIC24E family with dual CAN (對比PIC24EP256GU810-E/PF)
- USB 2.0 full-speed transceiver integrated (對比PIC24EP256GP204-E/TL)
- AEC-Q100 qualification for automotive ECUs (對比PIC24EP256GU814-I/PH)
- Upgradable to 512 KB Flash on same footprint (對比Custom 256 KB design)
設計說明
Decoupling: Place a 0.1 uF ceramic capacitor within 5 mm of every VDD/VDDCORE pin, plus a bulk 10 uF tantalum or ceramic near the package. The PIC24EP256GU814-E/PH core draws up to 100 mA at 60 MIPS (estimated from datasheet typical characteristics). An additional 4.7 uF is recommended on AVDD with a ferrite bead separating digital and analog supplies to prevent ADC noise coupling.
USB PCB layout: Maintain 90-ohm differential impedance on the D+/D- traces, route them over a continuous ground plane, and keep total length under 50 mm. Place the VBUS voltage-divider resistors within 5 mm of the VBUS pin. Per USB 2.0 spec, the D+/D- traces must be matched within 150 ps to avoid signal-integrity violations.
Crystal selection: Use a fundamental-mode crystal between 4 MHz and 10 MHz with effective load capacitance matched to the on-chip oscillator load (typically 15-20 pF). For USB full-speed operation, the accuracy must be within +/-0.25% over the operating temperature range; otherwise enumeration will fail on strict USB hosts.
Power dissipation in the 144-TQFP package is bounded by thermal resistance theta_JA of approximately 45 C/W (4-layer PCB with thermal vias, estimated). At 60 MIPS and 3.3 V, the core dissipates roughly 200 mW (estimated from datasheet IDD figure), resulting in a junction-to-ambient rise of about 9 C, well within the 125 C maximum.
MCLR pin must not be left floating; tie it to VDD through a 10 kohm pull-up with a 100 nF to ground for in-circuit programming. Configuration bits must set the FNOSC, POSCMD, and IESO bits correctly or the device will fail to start. Finally, the JTAG pins (PGECx/PGEDx) are multiplexed with ANx inputs - assign them carefully if using analog functions on those pins.
合規資訊
AEC-Q100 qualified per Microchip product page. RoHS and REACH compliant. Halogen-free status not stated in distributor data.