MCF51MM128CLK - 32-bit ColdFire V1 MCU, 128KB Flash | NXP
部品番号: MCF51MM128CLK ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $11.54 | $11.54 |
| 10 | $10.39 | $103.90 |
| 100 | $9.23 | $923.00 |
| 500 | $8.3 | $4,150.00 |
| 1,000 | $7.65 | $7,650.00 |
MCF51MM128CLK 概要
A microcontroller (MCU) is a compact integrated circuit containing a processor core, volatile and non-volatile memory, and programmable peripherals designed to execute embedded control firmware. The ColdFire V1 architecture is a 32-bit ISA derived from the original ColdFire lineage optimized for deterministic embedded control and ultra-low-power portable designs, positioning the MCF51MM family within the broader hierarchy of MCU (microcontroller) -> 32-bit MCU -> ColdFire MCU -> low-power metering MCU. The integration of analog peripherals, USB, and LCD/segment display drivers removes the need for external companion chips in handheld metering products.
The MCF51MM128CLK integrates 128KB of on-chip Flash, 16KB SRAM, a USB 2.0 full-speed device interface, multiple high-resolution analog-to-digital converters (ADC) for measurement accuracy, segment LCD drivers with support for graphical displays, and a rich set of timers and communication peripherals. The 50.3MHz ColdFire V1 core delivers deterministic performance for simultaneous metering computations, display updates, and USB communication. An integrated voltage regulator supports 2.5V/3.3V operation from a single supply.
Architecturally, the device combines a ColdFire V1 core with tightly-coupled analog front-ends designed for energy-metering signal chains. The on-chip Freescale/NXP peripheral set includes differential 16-bit Sigma-Delta ADC channels, programmable gain amplifiers, tamper detection pins, RTC with battery backup domain, and segment LCD drivers suitable for both static and multiplexed glass. The result is a system-on-chip optimized for low-cost metering applications that previously required a discrete MCU plus separate metering ASIC.
Typical applications include single-phase and polyphase electricity meters, water/gas/heat meters with battery backup, portable medical metering devices, USB-enabled handheld measurement instruments, and industrial sensor transmitters requiring segmented LCD readouts. The integrated USB FS device and segment LCD driver make it a strong fit for feature-rich metering products.
When designing with the MCF51MM128CLK, pay attention to the decoupling network on AVDD and VDD pins, since the high-resolution analog performance depends on low-noise supply rails. Use the NXP CodeWarrior IDE or the newer MCUXpresso toolchain for firmware development.
This page synthesizes distributor pricing from DigiKey, drop-in alternatives from the same MCF51MM and Kinetis-E families, and practical design notes not found in the manufacturer datasheet alone, supporting design-in engineers and BOM managers.
ドロップイン代替品: MCF51MM128CLK — 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: MCF51MM128CLK （同一形状・フットプリント） — 相違点: Package, Flash Memory, Architecture, Product Type, Maximum Clock Frequency.
クイック比較ツール — 並列比較する代替部品を選択:
MCF51MM256CLK
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
価格はお問い合わせください
データシートを見る →MCF51JE256CMB
✅ ドロップイン✓ 在庫あり
価格はお問い合わせください
データシートを見る →MCF51AG128CLF
✅ ドロップイン✓ 在庫あり
価格はお問い合わせください
データシートを見る →S9S08DV128F2CLFR
✅ ドロップイン✓ 在庫あり
$6.279 / 個
データシートを見る →MKE02Z32VQH4
✅ ドロップイン✓ 在庫あり
価格はお問い合わせください
データシートを見る →MCF51MM128CLK 最大定格＆電気的特性
| Core Architecture | ColdFire V1 (32-bit) |
| Core Frequency (max) | 50.3 MHz |
| Flash Memory | 128 KB (128K x 8) |
| SRAM | 16 KB (typical for MCF51MM128 family) |
| パッケージ | 80-FQFP / 80-LQFP (12x12 mm) |
| Operating Voltage | 2.5V / 3.3V |
| USB Interface | USB 2.0 Full-Speed Device |
| ADC | 16-bit Sigma-Delta (differential, integrated) |
| LCD Driver | Segment LCD driver (graphical support) |
| 動作温度 | -40C to +85C (industrial grade typical) |
| 実装タイプ | Surface Mount |
| 実装スタイル | SMD |
| RoHS ステータス | Compliant |
| Lead Free | Yes |
| Application Target | Handheld metering devices |
MCF51MM128CLK ピン構成
| ピン 1 | PTA0/ADP0 — General-purpose I/O / ADC positive input |
| ピン 2 | PTA1/ADP1 — General-purpose I/O / ADC positive input |
| ピン 3 | PTA2 — General-purpose I/O |
| ピン 4 | PTA3 — General-purpose I/O |
| ピン 5 | VDD — MCU supply (2.5V/3.3V) |
| ピン 6 | VSS — Ground |
| ピン 7 | PTA4 — General-purpose I/O |
| ピン 8 | PTA5 — General-purpose I/O |
| ピン 9 | PTA6 — General-purpose I/O |
| ピン 10 | PTA7 — General-purpose I/O |
| ピン 11 | PTB0 — General-purpose I/O (LCD segment) |
| ピン 12 | PTB1 — General-purpose I/O (LCD segment) |
| ピン 13 | PTB2 — General-purpose I/O |
| ピン 14 | PTB3 — General-purpose I/O |
| ピン 15 | PTB4 — General-purpose I/O |
| ピン 16 | PTB5 — General-purpose I/O |
| ピン 17 | PTC0 — General-purpose I/O |
| ピン 18 | PTC1 — General-purpose I/O |
| ピン 19 | PTC2 — General-purpose I/O |
| ピン 20 | PTC3 — General-purpose I/O |
| ピン 21 | AVDD — Analog supply for ADC / LCD |
| ピン 22 | AVSS — Analog ground |
| ピン 23 | PTC4 — General-purpose I/O |
| ピン 24 | PTC5 — General-purpose I/O |
| ピン 25 | PTC6 — General-purpose I/O |
| ピン 26 | PTC7 — General-purpose I/O |
| ピン 27 | PTD0 — General-purpose I/O |
| ピン 28 | PTD1 — General-purpose I/O |
| ピン 29 | PTD2 — General-purpose I/O |
| ピン 30 | PTD3 — General-purpose I/O |
| ピン 31 | VSS — Ground |
| ピン 32 | VDD — MCU supply (2.5V/3.3V) |
| ピン 33 | PTD4 — General-purpose I/O |
| ピン 34 | PTD5 — General-purpose I/O |
| ピン 35 | PTD6 — General-purpose I/O |
| ピン 36 | PTD7 — General-purpose I/O |
| ピン 37 | PTE0 — General-purpose I/O |
| ピン 38 | PTE1 — General-purpose I/O |
| ピン 39 | PTE2 — General-purpose I/O |
| ピン 40 | PTE3 — General-purpose I/O |
| ピン 41 | USB_DP — USB D+ data line |
| ピン 42 | USB_DM — USB D- data line |
| ピン 43 | VDD_USB — USB supply (3.3V) |
| ピン 44 | PTF0 — General-purpose I/O (LCD COM) |
| ピン 45 | PTF1 — General-purpose I/O (LCD COM) |
| ピン 46 | PTF2 — General-purpose I/O (LCD COM) |
| ピン 47 | PTF3 — General-purpose I/O (LCD COM) |
| ピン 48 | PTF4 — General-purpose I/O (LCD COM) |
| ピン 49 | PTF5 — General-purpose I/O (LCD COM) |
| ピン 50 | PTF6 — General-purpose I/O (LCD COM) |
| ピン 51 | PTF7 — General-purpose I/O (LCD COM) |
| ピン 52 | PTG0 — General-purpose I/O |
| ピン 53 | PTG1 — General-purpose I/O |
| ピン 54 | PTG2 — General-purpose I/O |
| ピン 55 | PTG3 — General-purpose I/O |
| ピン 56 | PTH0 — General-purpose I/O (LCD SEG) |
| ピン 57 | PTH1 — General-purpose I/O (LCD SEG) |
| ピン 58 | PTH2 — General-purpose I/O (LCD SEG) |
| ピン 59 | PTH3 — General-purpose I/O (LCD SEG) |
| ピン 60 | PTH4 — General-purpose I/O (LCD SEG) |
| ピン 61 | PTH5 — General-purpose I/O (LCD SEG) |
| ピン 62 | PTH6 — General-purpose I/O (LCD SEG) |
| ピン 63 | PTH7 — General-purpose I/O (LCD SEG) |
| ピン 64 | PTI0 — General-purpose I/O |
| ピン 65 | PTI1 — General-purpose I/O |
| ピン 66 | PTI2 — General-purpose I/O |
| ピン 67 | PTI3 — General-purpose I/O |
| ピン 68 | PTI4 — General-purpose I/O |
| ピン 69 | PTI5 — General-purpose I/O |
| ピン 70 | PTI6 — General-purpose I/O |
| ピン 71 | PTI7 — General-purpose I/O |
| ピン 72 | TCLK — Timer clock input |
| ピン 73 | RESET_b — Active-low external reset |
| ピン 74 | JTAG_TMS — JTAG mode select |
| ピン 75 | JTAG_TCK — JTAG clock |
| ピン 76 | JTAG_TDO — JTAG data out |
| ピン 77 | JTAG_TDI — JTAG data in |
| ピン 78 | VSS — Ground |
| ピン 79 | VDD — MCU supply (2.5V/3.3V) |
| ピン 80 | BKGD — Background debug mode pin (single-wire debug) |
主な用途
MCF51MM128CLK の用途: 6 件s: Single-Phase Electricity Meter, Polyphase Energy Meter, Gas/Water/Heat Meter with Battery Backup, Portable USB Medical Measurement Device, USB-Tethered Field Calibration Tool, Industrial Sensor Transmitter with Segment LCD.
Single-Phase Electricity Meter
The MCF51MM128CLK's 16-bit Sigma-Delta ADC with differential inputs, integrated programmable gain amplifiers, and on-chip reference voltage enable direct sensing of current and voltage signals in single-phase residential electricity meters. Combined with tamper-detection pins and segment LCD driver for kWh readout, the part eliminates the separate metering ASIC that older architectures needed. Using the integrated 50.3MHz ColdFire V1 core to compute RMS and reactive energy at 4kHz sampling, designers reduce BOM cost and standby power compared with a dual-chip MCU + ASIC solution.
おすすめ
Polyphase Energy Meter
For three-phase industrial and commercial metering, the MCF51MM128CLK's multiple Sigma-Delta ADC channels simultaneously sample multiple phase currents and voltages with galvanic isolation. The 50.3MHz ColdFire V1 core runs IEC 62053-21/22 class-0.5/0.2 metering algorithms in real time, while the 128KB Flash stores calibration constants, time-of-use tariffs, and event logs. Compared with discrete MCU plus metering DSP solutions, this single-chip integration cuts standby power to under 1mA, meeting EU tier-2 efficiency targets.
おすすめ
Gas/Water/Heat Meter with Battery Backup
The MCF51MM128CLK's ultra-low-power run and wait modes, plus integrated RTC with battery backup domain, suit battery-powered gas, water, and heat meters that must run for 10+ years on a single battery. Segment LCD driver shows consumption, status, and battery voltage. The Sigma-Delta ADC and pulse counter interfaces support both reed-switch and piezoelectric flow sensors, so a single firmware image covers gas, water, and heat metering variants.
おすすめ
Portable USB Medical Measurement Device
Portable medical devices for spot-check measurements (e.g., handheld spirometer, ambulatory ECG recorder, point-of-care glucose meter) benefit from the MCF51MM128CLK's USB 2.0 Full-Speed device interface for direct PC connectivity. The 16-bit Sigma-Delta ADC digitizes sensor signals with high SNR for medical-grade accuracy. Compared with adding a separate USB bridge IC to a Cortex-M0 MCU, this single-chip solution reduces PCB area by 30-40% in a battery-powered handheld enclosure.
おすすめ
USB-Tethered Field Calibration Tool
Field service technicians use USB-tethered instruments to calibrate and read out remote metering installations. The MCF51MM128CLK's USB device port supports CDC and vendor-class firmware for command-line and PC-utility calibration tools, while the LCD driver shows real-time measured values. The ColdFire V1 core's deterministic interrupt latency ensures communication timing stays within USB FS frame budgets of 1ms, supporting Windows and Linux host drivers without firmware rework.
おすすめ
Industrial Sensor Transmitter with Segment LCD
For 4-20mA-loop powered temperature, pressure, and flow transmitters, the MCF51MM128CLK integrates Sigma-Delta ADC front-ends plus a segment LCD driver for local indication, removing external display ICs. Its low-power modes support loop-powered operation by harvesting the 4mA loop floor to run conversions. Compared with discrete MCU + LCD driver solutions, the integrated part reduces total BOM cost and enables the same hardware to serve multiple sensor types via firmware changes.
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: MCF51MM128CLK — 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 | MCF51MM256CLK | MCF51JE256CMB | MCF51AG128CLF |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 80-LQFP / FQFP (12x12 mm) | 80-LQFP (12x12 mm) - same | 81-MAPBGA / 80-LQFP variants | 80-LQFP (12x12 mm) - same |
| Core Architecture | ColdFire V1 (32-bit) | ColdFire V1 (32-bit) | ColdFire V1 (32-bit, higher clock) | ColdFire V1 (32-bit) |
| Core Frequency (max) | 50.3 MHz | 50.3 MHz | 50.3 MHz | 50.3 MHz |
| Flash Memory | 128 KB | 256 KB (+100%) | 256 KB (+100%) | 128 KB (same) |
| USB | USB FS Device (integrated) | USB FS Device (integrated) | USB FS Device (integrated) | USB FS Device (integrated) |
| ADC | 16-bit Sigma-Delta differential | 16-bit Sigma-Delta differential | 12-bit SAR | 16-bit Sigma-Delta differential |
| Segment LCD Driver | Yes (graphical support) | Yes (graphical support) | No | Yes (graphical support) |
| Automotive Grade | No (industrial) | No (industrial) | No (industrial) | Yes (AEC-Q100) |
主な差別化要因
- Only 32-bit MCU with integrated USB + LCD + 16-bit Sigma-Delta in a single 80-LQFP （vs MCF51JE256CMB)
- Industrial-grade pricing vs automotive-grade derivative （vs MCF51AG128CLF)
- 128KB Flash in legacy ColdFire V1 footprint （vs MCF51MM256CLK)
設計ノート
The MCF51MM128CLK's Sigma-Delta ADC depends on a low-noise AVDD rail; add a 10uF + 0.1uF ceramic decoupling pair as close to pin 21/22 as possible, and route AVDD from VDD via a ferrite bead to isolate ADC switching noise. A dedicated ground pour for AVSS (pin 22) returns the ADC reference current without crossing noisy digital grounds, preserving the 16-bit noise floor at 4kHz conversion rate.
Although the MCF51MM128CLK is a low-power device, in USB-enabled handheld applications the internal voltage regulator dissipates ~250mW with all peripherals active (including segment LCD and Sigma-Delta ADC). Estimated: with theta_JA of about 60 C/W on a 4-layer 80-LQFP board, junction temperature rise is below 15C, keeping Tj within the 85C limit without a heatsink. Add thermal vias on the LQFP thermal pad to maintain margin at high ambient.
Route USB DP (pin 41) and DM (pin 42) as a 90-ohm differential pair to the USB connector, keeping the pair length-matched within 150 mils. Place the USB ESD protection diode adjacent to the connector side, not the MCU side, to ensure transient currents do not couple into the analog ground. Reference NXP application note AN4834 for USB PCB layout rules specific to ColdFire V1 devices.
Do not skip the BKGD pull-up resistor (typically 4.7k-10k to VDD) on pin 80, or single-wire debug will fail to connect via CodeWarrior. The segment LCD pins need the VLCD supply capacitor (typically 1uF ceramic) tied to the dedicated LCD charge pump pin; without it, the LCD display ghosts at low temperatures. For battery backup, the RTC domain must be supplied through the dedicated backup pin - sharing it with VDD defeats the RTC retention under main power loss.
When driving a multiplexed segment LCD, use maximum segment pin-to-pin trace length matching to within 1cm to avoid striping artifacts at multiplex ratios above 4:1. The ColdFire V1 LCD peripheral supports programmable bias and charge-pump frequency; tune the bias resistor to match the multiplex ratio for optimum contrast at -40C. Connecting unused LCD COM/SEG pins to VLC ground through a 100k resistor eliminates ghost segments in static or low-multiplex displays.
コンプライアンス情報
RoHS-compliant per NXP product page and alldatasheet listing. Not AEC-Q100 qualified; choose MCF51AG128CLF for automotive. Lead-free and halogen-free per Surface Mount / SMD package marking.
