PIC32MK0256MCJ048-E/7MX - 120MHz 32-bit MCU, 256KB Flash | Microchip
料号： PIC32MK0256MCJ048-E/7MX ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 10 | $6.18 | $61.80 |
| 100 | $5.5 | $550.00 |
| 500 | $4.95 | $2,475.00 |
| 1,000 | $4.4 | $4,400.00 |
PIC32MK0256MCJ048-E/7MX 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals. The PIC32MK family uses a MIPS32 microAptiv core which combines deterministic interrupt response with DSP extensions and a memory protection unit. Within the broader hierarchy, an MCU is a subset of microprocessors, sits inside the semiconductor category, and is a fundamental building block of any embedded system. This positions the PIC32MK family between 8-bit PIC16/PIC24 devices and 32-bit Cortex-M4 competitors, providing higher computational headroom while retaining the PIC ecosystem.
Key features include up to 120 MHz CPU speed, 4 dedicated PWM channels with 7.5 ns resolution for advanced motor control, multiple CAN-FD modules for industrial networking, ECC on Flash for safety-critical code, a 12-bit ADC at 3.75 Msps, and a USB 2.0 Full-Speed OTG controller. The peripheral set also includes multiple UART, SPI, I2C, and quadrature encoder interfaces that simplify closed-loop motor control designs. Internal voltage regulation and brown-out detection support robust operation across 2.3V to 3.6V.
The device integrates a high-performance timer/counter architecture optimized for field-oriented control (FOC) of PMSM, BLDC, and stepper motors. Hardware-based fault handling and dead-band generation reduce CPU load, allowing the 120 MHz core to focus on application-level logic. A 32-bit core coupled with deterministic DMA channels supports parallel data acquisition without CPU intervention.
Typical applications include 3-phase motor drives for industrial pumps and fans, IIoT sensor hubs with CAN-FD backbones, automotive body controllers, digital power converters, and precision servo amplifiers. The -E temperature grade (-40C to +125C) and AEC-Q100 qualification allow deployment under hood and in industrial cabinets.
When designing with this MCU, ensure decoupling is placed within 5 mm of each VDD pin pair and that the exposed pad is soldered to a continuous ground plane for thermal dissipation. For motor control, route analog and digital grounds as separate nets that join at a single point near the IC.
This page synthesizes distributor pricing from DigiKey, Mouser, and Octopart, drop-in same-package alternatives from the PIC32MK family, and design considerations not collated on any single manufacturer or distributor page.
直接替换替代料： PIC32MK0256MCJ048-E/7MX ——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： PIC32MK0256MCJ048-E/7MX （相同外形与封装尺寸） ——差异在于 Package, ADC, Core Architecture, CAN-FD, Motor Control PWM.
快速对比工具——选择替代料号进行并排对比：
PIC32MK0256MCJ048T-E/7MX
✅ 直接替换✓ 有现货
$2.95 / 个
查看数据手册 →PIC32MK0256GPG048-E/7MX
✅ 直接替换✓ 有现货
$3.52 / 个
查看数据手册 →PIC32MK0256GPG048T-E/Y8X
✅ 直接替换✓ 有现货
$3.58 / 个
查看数据手册 →PIC32MK0256MCJ048-E/7MX 最大额定值与电气特性
| Core | MIPS32 microAptiv |
| Core Family | PIC32MK |
| Maximum CPU Speed | 120 MHz |
| Operating CPU Speed (this variant) | 80 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) |
| ECC Protection | Yes (ECC-protected Flash) |
| SRAM | 64 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Supply Voltage (typical) | 3.3 V |
| Temperature Grade | -40C to +125C (Automotive / -E) |
| AEC-Q100 Qualification | Qualified |
| 封装 | 48-pin VQFN (7MX, 6x6 mm) with exposed pad |
| 安装类型 | Surface Mount |
| CAN-FD Modules | Yes |
| USB | USB 2.0 Full-Speed OTG |
| ADC | 12-bit, 3.75 Msps |
| Motor Control PWM | Dedicated PWM with 7.5 ns resolution |
| DMA Channels | Yes |
| MSL 等级 | 3 |
| RoHS 状态 | Compliant |
PIC32MK0256MCJ048-E/7MX 引脚配置
| 引脚 1 | VDD — Digital supply voltage (3.3V typical) |
| 引脚 2 | OSCI — Primary oscillator input |
| 引脚 3 | OSCO — Primary oscillator output |
| 引脚 4 | MCLR — Master clear / reset (active-low) |
| 引脚 5 | PGED1 — ICSP data |
| 引脚 6 | PGEC1 — ICSP clock |
| 引脚 7 | RB0 — I/O port B bit 0 |
| 引脚 8 | RB1 — I/O port B bit 1 |
| 引脚 9 | VSS — Digital ground |
| 引脚 10 | RB2 — I/O port B bit 2 |
| 引脚 11 | RB3 — I/O port B bit 3 |
| 引脚 12 | RB4 — I/O port B bit 4 |
| 引脚 13 | RB5 — I/O port B bit 5 |
| 引脚 14 | RB6 — I/O port B bit 6 |
| 引脚 15 | RB7 — I/O port B bit 7 |
| 引脚 16 | RC0 — I/O port C bit 0 |
| 引脚 17 | RC1 — I/O port C bit 1 |
| 引脚 18 | RC2 — I/O port C bit 2 |
| 引脚 19 | VSS — Digital ground |
| 引脚 20 | VDD — Digital supply voltage |
| 引脚 21 | RC3 — I/O port C bit 3 |
| 引脚 22 | RC4 — I/O port C bit 4 |
| 引脚 23 | RD0 — I/O port D bit 0 |
| 引脚 24 | RD1 — I/O port D bit 1 |
| 引脚 25 | RD2 — I/O port D bit 2 |
| 引脚 26 | RD3 — I/O port D bit 3 |
| 引脚 27 | RD4 — I/O port D bit 4 |
| 引脚 28 | RD5 — I/O port D bit 5 |
| 引脚 29 | RD6 — I/O port D bit 6 |
| 引脚 30 | RD7 — I/O port D bit 7 |
| 引脚 31 | VSS — Digital ground |
| 引脚 32 | VDD — Digital supply voltage |
| 引脚 33 | RE0 — I/O port E bit 0 |
| 引脚 34 | RE1 — I/O port E bit 1 |
| 引脚 35 | RE2 — I/O port E bit 2 |
| 引脚 36 | RE3 — I/O port E bit 3 |
| 引脚 37 | RF0 — I/O port F bit 0 |
| 引脚 38 | RF1 — I/O port F bit 1 |
| 引脚 39 | RF2 — I/O port F bit 2 |
| 引脚 40 | RF3 — I/O port F bit 3 |
| 引脚 41 | RF4 — I/O port F bit 4 |
| 引脚 42 | RF5 — I/O port F bit 5 |
| 引脚 43 | RF6 — I/O port F bit 6 |
| 引脚 44 | VSS — Digital ground |
| 引脚 45 | RG0 — I/O port G bit 0 |
| 引脚 46 | RG1 — I/O port G bit 1 |
| 引脚 47 | RG2 — I/O port G bit 2 |
| 引脚 48 | RG3 — I/O port G bit 3 |
| 引脚 EP | EP — Exposed thermal pad - must be soldered to ground plane |
典型应用
PIC32MK0256MCJ048-E/7MX 适用于 6 应用s: Three-Phase PMSBLDC Motor Drive, Industrial IoT Sensor Hub, Automotive Body Controller, Digital Power Converter Control, Precision Servo Amplifier, Solar Inverter MPPT Controller.
Three-Phase PMSBLDC Motor Drive
The PIC32MK0256MCJ048-E/7MX is purpose-built for field-oriented control of 3-phase PMSM and BLDC motors in industrial drives. Its dedicated PWM outputs deliver 7.5 ns edge resolution, enabling 50 kHz switching frequencies with sub-percent duty-cycle linearity that is essential for sinusoidal commutation. Hardware dead-band generation, fault shutdown inputs, and ADC triggering synchronized to PWM edges remove CPU overhead from the critical control loop. Integrated CAN-FD provides deterministic networking for multi-axis servo backbones, while 64 KB SRAM holds PI controllers, observer state, and Clarke/Park transform tables without external memory. The -40C to +125C grade supports cabinet and under-hood deployments.
推荐
Industrial IoT Sensor Hub
Industrial IoT gateways demand deterministic real-time behavior plus networking, and the PIC32MK0256MCJ048-E/7MX delivers both. Its 120 MHz MIPS32 microAptiv core runs TLS 1.2 stacks while the integrated CAN-FD ports aggregate sensor traffic from fieldbus nodes at 5 Mbit/s. USB 2.0 Full-Speed OTG supports local configuration via mass-storage or CDC. The 12-bit 3.75 Msps ADC handles analog sensor channels, and DMA channels move conversions into SRAM without CPU intervention. ECC-protected Flash guards configuration data against bit flips in noisy industrial cabinets, and the AEC-Q100 grade tolerates extended temperature operation.
推荐
Automotive Body Controller
Automotive body and chassis modules benefit from the PIC32MK0256MCJ048-E/7MX's AEC-Q100 qualification and rich peripheral set. CAN-FD modules interface with vehicle bus architectures, while dedicated PWM channels drive LED matrix lighting, mirror adjustments, and seat positioning motors. The 256 KB ECC Flash provides headroom for CAN stack, UDS diagnostics, and bootloader with A/B partition support. The -40C to +125C grade ensures reliable operation across cabin and under-hood environments. Low-power sleep modes with RTC retention suit always-on body ECUs that wake on CAN or GPIO events.
推荐
Digital Power Converter Control
Digital power supplies need high-resolution PWM and fast ADC sampling, both delivered by the PIC32MK0256MCJ048-E/7MX. The 7.5 ns PWM edge resolution enables 130+ kHz switching frequencies with precise volt-second balance, critical for bridgeless PFC and LLC topologies. The 12-bit 3.75 Msps ADC samples feedback at sub-microsecond intervals for average-current-mode control. ECC Flash prevents control-loop corruption from cosmic or EMI-induced bit flips. The integrated CAN-FD allows telemetry reporting to system controllers in modular PSUs, while USB OTG simplifies firmware updates during manufacturing.
推荐
Precision Servo Amplifier
Closed-loop servo amplifiers rely on quadrature encoder inputs, high-resolution PWM output, and deterministic timing - all core strengths of the PIC32MK0256MCJ048-E/7MX. The MCU's quadrature encoder interfaces read incremental encoder counts directly, while DMA channels transfer position data into SRAM without CPU intervention. The 120 MHz core executes PID loops at 50 kHz with margin to spare for trajectory planning. CAN-FD enables real-time coordination across multi-axis machines, and ECC Flash ensures parameter tables remain uncorrupted over years of continuous factory operation.
推荐
Solar Inverter MPPT Controller
Photovoltaic inverters require precise maximum power point tracking under rapidly changing irradiance, which the PIC32MK0256MCJ048-E/7MX handles efficiently. Its 12-bit ADC samples panel voltage and current at 3.75 Msps, enabling perturb-and-observe MPPT algorithms that adapt within milliseconds to cloud edges. The dedicated PWM drives a high-frequency DC-DC stage feeding a grid-tied inverter, with hardware dead-band preventing shoot-through in the bridge. CAN-FD connects to the inverter's supervisory controller for grid-synchronization telemetry, while ECC Flash survives decades of rooftop thermal cycling with the -40C to +125C grade.
推荐
推荐产品汇总
工程参考数据： PIC32MK0256MCJ048-E/7MX ——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 | PIC32MK0256MCJ048T-E/7MX | PIC32MK0256GPG048-E/7MX | PIC32MK0256GPG048T-E/Y8X |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | VQFN-48 (7MX) 6x6 mm | VQFN-48 (7MX) - same | VQFN-48 (7MX) - same | VQFN-48 (Y8X) - same footprint family |
| Core | MIPS32 microAptiv | MIPS32 microAptiv | MIPS32 microAptiv | MIPS32 microAptiv |
| Maximum CPU Speed | 120 MHz (80 MHz this variant) | 120 MHz | 120 MHz | 120 MHz |
| Flash Memory | 256 KB ECC | 256 KB ECC | 256 KB ECC | 256 KB ECC |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB |
| CAN-FD | Yes | Yes | No (CAN 2.0B only) | No (CAN 2.0B only) |
| Dedicated Motor-Control PWM | Yes (7.5 ns resolution) | Yes | Yes | Yes |
| Temperature Grade | -40C to +125C (AEC-Q100) | -40C to +125C (AEC-Q100) | -40C to +125C | -40C to +125C (AEC-Q100) |
| Packaging Format | Tube | Tape & Reel | Tube | Tape & Reel |
关键差异点
- Integrated CAN-FD plus 7.5 ns PWM resolution in same 48-pin VQFN （对比 PIC32MK0256GPG048-E/7MX)
- AEC-Q100 grade qualification at 120 MHz in 48-pin VQFN （对比 PIC32MK0256MCJ048T-E/7MX)
- ECC-protected Flash without external memory overhead （对比 PIC24HJ128GP306A-I/PT)
设计说明
Decoupling: place a 100 nF X7R ceramic capacitor within 5 mm of each VDD pin pair, plus a single 4.7 uF bulk capacitor near the MCU. The PIC32MK0256MCJ048E integrates an internal LDO, but high-current PWM switching transients can cause supply sag if decoupling is insufficient. Estimated: 48-pin VQFN at 120 MHz with active PWM draws ~70 mA peak from VDD.
Thermal management: the 48-pin VQFN (7MX) exposed pad (EP) MUST be soldered to a continuous ground plane with multiple thermal vias. Without EP soldering, junction temperature can exceed 150C at moderate ambient temperatures. For motor-control applications where the MCU drives gate-driver logic, maintain at least 100 mm^2 of 2 oz copper connected to the EP for adequate heat spreading.
PCB layout: separate analog and digital ground nets; join at a single point beneath or adjacent to the IC exposed pad. Route high-current motor traces (>1 A) on inner copper layers or thick top-layer pours to minimize ground bounce. Place the 12-bit ADC reference decoupling capacitor (1 uF + 100 nF parallel) within 50 mm of the MCU's VREF+ pin to preserve 12-bit ADC accuracy.
Common pitfalls: do not leave the MCLR pin floating - tie to VDD via a 10 kohm pull-up. Do not operate without the primary oscillator when configured for high-speed internal PLL. The -E grade requires derating at temperatures above 100C - consult the datasheet thermal characteristics for your PWM duty cycle profile. Do not connect JTAG/ICSP pins to signal traces without isolating them during debug.
合规信息
AEC-Q100 qualified per Microchip product family documentation. RoHS and REACH compliant per datasheet. Lead-free packaging confirmed by MSL Level 3 rating.
