MCF51JM64EVQH - ColdFire V1 32-bit MCU 50MHz 64KB Flash | NXP
部品番号: MCF51JM64EVQH ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $6.9 | $6.90 |
| 10 | $6.21 | $62.10 |
| 100 | $5.52 | $552.00 |
| 500 | $4.97 | $2,485.00 |
| 1,000 | $4.42 | $4,420.00 |
MCF51JM64EVQH 概要
A microcontroller (MCU) is a single integrated circuit that combines a processor core, program memory, data memory, and peripheral functions such as timers, serial interfaces, and analog blocks into one chip. Microcontrollers sit at the heart of embedded systems, controlling everything from consumer appliances to industrial automation equipment. The ColdFire V1 architecture is a 32-bit instruction-set-compatible member of the broader ColdFire microprocessor family, offering an upgrade path from 8-bit MCUs to 32-bit performance without a steep software learning curve.
Key features of the MCF51JM64EVQH include the 50 MHz ColdFire V1 RISC core, 64 KB of on-chip Flash organized as 64K x 8, and 16 KB of RAM for data and stack. The dual-supply capability of 3.3 V and 5 V simplifies integration into both legacy 5 V industrial designs and modern 3.3 V systems. The 64-QFP 14 x 14 mm package provides a good balance of I/O count and board area for medium-complexity embedded designs.
The JM sub-family integrates USB connectivity alongside standard serial peripherals, positioning it for human interface devices, USB-to-serial bridging, and control panels. The ColdFire V1 core executes compact 32-bit code with deterministic behavior suited to control-loop and communication tasks.
Typical applications include USB-enabled industrial controllers, consumer appliance interfaces, motor control panels, and test equipment front ends.
A key design consideration is supply selection: operating at 5 V improves noise margin in industrial environments, while 3.3 V operation reduces power dissipation; verify Flash programming and peripheral timing margins at the chosen supply.
This page consolidates distributor pricing tiers, drop-in alternatives, and practical design guidance not found in the manufacturer datasheet alone.
ドロップイン代替品: MCF51JM64EVQH — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: MCF51JM64EVQH （同一形状・フットプリント） — 相違点: Package, Supply Voltage, Maximum Clock Frequency, Program Memory Size, RAM Size.
クイック比較ツール — 並列比較する代替部品を選択:
MCF51JM128EVQH
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MCF51JM32EVQH
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MCF51AC256ACFUE
✅ ドロップイン✓ 在庫あり
$8.12 / 個
データシートを見る →MCF51JM64EVQH 最大定格＆電気的特性
| Core Processor | ColdFire V1 |
| Core Size | 32-Bit |
| 最大クロック周波数 | 50 MHz |
| Flash Program Memory | 64 KB (64K x 8) |
| RAM Size | 16 KB |
| 電源電圧 | 3.3 V / 5 V |
| Series | MCF51JM |
| パッケージ | 64-QFP (14 x 14 mm) |
| 実装タイプ | Surface Mount |
| Packaging | Tray |
| Architecture | RISC |
| Manufacturer (Legacy) | Freescale Semiconductor (now NXP) |
MCF51JM64EVQH 64-qfp (14 x 14 mm) ピン配置ガイド
MCF51JM64EVQH (64-qfp (14 x 14 mm) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: MCF51JM64EVQH.
詳細は データシート をご参照ください。
主な用途
MCF51JM64EVQH の用途: 6 件s: USB Human Interface Devices, Industrial Control Panels, USB-to-Serial Bridging, Appliance Control Systems, Test and Measurement Front Ends, Motor Control and Actuator Drivers.
USB Human Interface Devices
The MCF51JM64EVQH fits USB HID designs such as keyboards, control panels, and instrumentation front ends because the JM family integrates USB connectivity with a 50 MHz ColdFire V1 core and 16 KB of RAM for endpoint buffering. The dual 3.3 V/5 V supply capability lets the device interface directly with legacy 5 V indicator circuitry while presenting a standard USB interface to the host. Firmware handles enumeration, report transfers, and application logic concurrently; the 64 KB Flash accommodates a full USB stack plus application code with margin. The 64-QFP package provides enough GPIO for key matrices and status LEDs in a single 14 x 14 mm footprint.
おすすめ
Industrial Control Panels
In industrial control panels, the MCF51JM64EVQH operates at 5 V for superior noise margin in electrically harsh environments, executing deterministic 32-bit control loops at 50 MHz. The 64 KB Flash holds ladder-logic interpreters, PID routines, and serial communication code, while 16 KB of RAM supports data logging buffers. The 64-QFP (14 x 14 mm) package offers sufficient I/O for relays, buttons, and status indicators. Its surface-mount QFP construction suits standard industrial PCB assembly, and the ColdFire V1 architecture provides a well-documented upgrade path from 8-bit panel controllers without changing toolchains wholesale.
おすすめ
USB-to-Serial Bridging
The MCF51JM64EVQH implements USB-to-UART/RS-232 bridge firmware using its on-chip USB peripheral and serial communication interfaces, converting between a USB device port and legacy serial equipment. The 50 MHz core services USB transactions and serial shifting concurrently with protocol translation, and the 16 KB RAM buffers burst data in both directions. Operating at 5 V simplifies level interfacing to RS-232 transceivers, while 3.3 V operation suits modern logic. The 64 KB Flash stores a compact USB CDC stack plus vendor-specific commands. The 64-QFP package leaves spare GPIO for flow-control and handshaking lines in a compact board area.
おすすめ
Appliance Control Systems
Consumer appliance controllers benefit from the MCF51JM64EVQH's combination of 32-bit performance, 64 KB of in-system Flash for field-updatable firmware, and dual 3.3 V/5 V supply flexibility. The 50 MHz ColdFire V1 core handles touch-scan routines, display refresh, and temperature regulation loops with deterministic timing, while the 64-QFP package supplies enough GPIO for seven-segment displays, keypads, and actuator drives in a 14 x 14 mm footprint. The 16 KB RAM supports state machines and sensor filtering. Flash reprogramming in-system enables firmware updates during manufacturing and service, a practical advantage over mask-ROM 8-bit controllers.
おすすめ
Test and Measurement Front Ends
In bench instruments and data-logging front ends, the MCF51JM64EVQH manages user interfaces, USB data upload, and control sequencing with its 50 MHz 32-bit core. The 16 KB of RAM buffers measurement results between acquisition bursts and USB transfers, and 64 KB of Flash holds calibration tables and command interpreters. The JM-family USB port provides a plug-and-play link to PCs without external bridge chips, reducing BOM cost. Operation at 5 V improves analog-to-digital interfacing noise margins in front-end circuits. The 64-QFP 14 x 14 mm package integrates cleanly into modular instrument main boards with standard SMT processes.
おすすめ
Motor Control and Actuator Drivers
The MCF51JM64EVQH executes PWM generation, current-limit supervision, and communication for small motor and actuator control nodes. Its 50 MHz ColdFire V1 core computes commutation timing with headroom, and its 32-bit arithmetic simplifies PID speed-loop implementation compared to 8-bit devices. At 5 V, gate-drive and optocoupler interfacing is direct; 16 KB of RAM holds filter states and fault logs, while 64 KB Flash stores multiple profile sets. The 64-QFP (14 x 14 mm) package provides sufficient timers and GPIO for H-bridge control signals and feedback inputs, making it a compact single-chip controller for industrial automation subsystems.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MCF51JM64EVQH — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | MCF51JM128EVQH | MCF51JM32EVQH | MCF51AC256ACFUE |
|---|---|---|---|---|
| Package | 64-QFP (14 x 14 mm) | 64-QFP (14 x 14 mm) - same | 64-QFP (14 x 14 mm) - same | 64-QFP - same package type, verify pinout |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core / Architecture | ColdFire V1, 32-bit RISC | ColdFire V1, 32-bit RISC | ColdFire V1, 32-bit RISC | ColdFire V1, 32-bit RISC (AC family) |
| Flash Memory | 64 KB | 128 KB | 32 KB | 256 KB |
| Supply Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V |
| Key Advantage | Balanced 64 KB Flash / 16 KB RAM | 2x Flash headroom in same footprint | Lower cost for small firmware | 4x Flash for large applications |
主な差別化要因
- Optimal memory balance for USB-class firmware （vs MCF51JM32EVQH)
- Lower cost than the Flash-doubled variant （vs MCF51JM128EVQH)
- 5 V capable operation （vs MCF51AC256ACFUE)
設計ノート
The MCF51JM64EVQH supports both 3.3 V and 5 V operation. Select 5 V in industrial environments where noise margin and direct 5 V sensor/optocoupler interfacing matter; select 3.3 V to reduce power dissipation and interface with modern 3.3 V logic and memories. Provide a solid ground plane and place 0.1 uF decoupling capacitors at each supply pin pair, plus one bulk 10 uF capacitor per supply domain. When dual-rail systems share the MCU I/O, add series resistors on level-crossing signal lines to limit injection current during transients.
The 64-QFP (14 x 14 mm) package has a 0.5 mm lead pitch - inspect reflow profiles and stencil design to prevent solder bridging between adjacent leads. Use a footprint per the NXP recommended land pattern and maintain at least 0.2 mm trace width escape routing between pins without via-in-pad. Place the USB differential pair with 90-ohm controlled impedance and matched lengths when the on-chip USB is used. Keep the crystal circuit short, with ground guard traces, for reliable 50 MHz clock start-up across temperature.
This is a legacy Freescale-designed part (datasheet published 2008); confirm the exact operating temperature grade, Flash endurance, and peripheral availability in the current NXP datasheet revision before design freeze - distributor listings do not state the operating temperature range. Do not assume a JM128 swap is free of firmware changes: the 128 KB variant may remap Flash protection regions. When substituting family members, re-verify every register-level peripheral configuration and Flash programming algorithm against the relevant reference manual.
コンプライアンス情報
Compliance status not stated in the provided verified web data; verify on the NXP product page or distributor compliance documents before procurement.
