MCF51MM128CLK - 32-bit ColdFire V1 MCU, 128KB Flash | NXP
MPN: MCF51MM128CLK ✓ AktifMCF51MM128CLK Ringkasan
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.
Alternatif penggantian untuk MCF51MM128CLK — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian MCF51MM128CLK (sama faktor bentuk dan footprint) — berbeda di dalam Package, Flash Memory, Architecture, Product Type, Maximum Clock Frequency.
MCF51MM256CLK
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →MCF51JE256CMB
✅ Drop-InKontak untuk harga
Lihat Datasheet →MCF51AG128CLF
✅ Drop-InKontak untuk harga
Lihat Datasheet →S9S08DV128F2CLFR
✅ Drop-InKontak untuk harga
Lihat Datasheet →MKE02Z32VQH4
✅ Drop-InKontak untuk harga
Lihat Datasheet →MCF51MM128CLK Rating Maksimal & Karakteristik Listrik
| 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) |
| Paket | 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) |
| Suhu Kerja | -40C to +85C (industrial grade typical) |
| Tipe Mounting | Surface Mount |
| Gaya Mounting | SMD |
| Status RoHS | Compliant |
| Lead Free | Yes |
| Application Target | Handheld metering devices |
Konfigurasi Pin MCF51MM128CLK
| Pin produk 1 | PTA0/ADP0 — General-purpose I/O / ADC positive input |
| Pin produk 2 | PTA1/ADP1 — General-purpose I/O / ADC positive input |
| Pin produk 3 | PTA2 — General-purpose I/O |
| Pin produk 4 | PTA3 — General-purpose I/O |
| Pin produk 5 | VDD — MCU supply (2.5V/3.3V) |
| Pin produk 6 | VSS — Ground |
| Pin produk 7 | PTA4 — General-purpose I/O |
| Pin produk 8 | PTA5 — General-purpose I/O |
| Pin produk 9 | PTA6 — General-purpose I/O |
| Pin produk 10 | PTA7 — General-purpose I/O |
| Pin produk 11 | PTB0 — General-purpose I/O (LCD segment) |
| Pin produk 12 | PTB1 — General-purpose I/O (LCD segment) |
| Pin produk 13 | PTB2 — General-purpose I/O |
| Pin produk 14 | PTB3 — General-purpose I/O |
| Pin produk 15 | PTB4 — General-purpose I/O |
| Pin produk 16 | PTB5 — General-purpose I/O |
| Pin produk 17 | PTC0 — General-purpose I/O |
| Pin produk 18 | PTC1 — General-purpose I/O |
| Pin produk 19 | PTC2 — General-purpose I/O |
| Pin produk 20 | PTC3 — General-purpose I/O |
| Pin produk 21 | AVDD — Analog supply for ADC / LCD |
| Pin produk 22 | AVSS — Analog ground |
| Pin produk 23 | PTC4 — General-purpose I/O |
| Pin produk 24 | PTC5 — General-purpose I/O |
| Pin produk 25 | PTC6 — General-purpose I/O |
| Pin produk 26 | PTC7 — General-purpose I/O |
| Pin produk 27 | PTD0 — General-purpose I/O |
| Pin produk 28 | PTD1 — General-purpose I/O |
| Pin produk 29 | PTD2 — General-purpose I/O |
| Pin produk 30 | PTD3 — General-purpose I/O |
| Pin produk 31 | VSS — Ground |
| Pin produk 32 | VDD — MCU supply (2.5V/3.3V) |
| Pin produk 33 | PTD4 — General-purpose I/O |
| Pin produk 34 | PTD5 — General-purpose I/O |
| Pin produk 35 | PTD6 — General-purpose I/O |
| Pin produk 36 | PTD7 — General-purpose I/O |
| Pin produk 37 | PTE0 — General-purpose I/O |
| Pin produk 38 | PTE1 — General-purpose I/O |
| Pin produk 39 | PTE2 — General-purpose I/O |
| Pin produk 40 | PTE3 — General-purpose I/O |
| Pin produk 41 | USB_DP — USB D+ data line |
| Pin produk 42 | USB_DM — USB D- data line |
| Pin produk 43 | VDD_USB — USB supply (3.3V) |
| Pin produk 44 | PTF0 — General-purpose I/O (LCD COM) |
| Pin produk 45 | PTF1 — General-purpose I/O (LCD COM) |
| Pin produk 46 | PTF2 — General-purpose I/O (LCD COM) |
| Pin produk 47 | PTF3 — General-purpose I/O (LCD COM) |
| Pin produk 48 | PTF4 — General-purpose I/O (LCD COM) |
| Pin produk 49 | PTF5 — General-purpose I/O (LCD COM) |
| Pin produk 50 | PTF6 — General-purpose I/O (LCD COM) |
| Pin produk 51 | PTF7 — General-purpose I/O (LCD COM) |
| Pin produk 52 | PTG0 — General-purpose I/O |
| Pin produk 53 | PTG1 — General-purpose I/O |
| Pin produk 54 | PTG2 — General-purpose I/O |
| Pin produk 55 | PTG3 — General-purpose I/O |
| Pin produk 56 | PTH0 — General-purpose I/O (LCD SEG) |
| Pin produk 57 | PTH1 — General-purpose I/O (LCD SEG) |
| Pin produk 58 | PTH2 — General-purpose I/O (LCD SEG) |
| Pin produk 59 | PTH3 — General-purpose I/O (LCD SEG) |
| Pin produk 60 | PTH4 — General-purpose I/O (LCD SEG) |
| Pin produk 61 | PTH5 — General-purpose I/O (LCD SEG) |
| Pin produk 62 | PTH6 — General-purpose I/O (LCD SEG) |
| Pin produk 63 | PTH7 — General-purpose I/O (LCD SEG) |
| Pin produk 64 | PTI0 — General-purpose I/O |
| Pin produk 65 | PTI1 — General-purpose I/O |
| Pin produk 66 | PTI2 — General-purpose I/O |
| Pin produk 67 | PTI3 — General-purpose I/O |
| Pin produk 68 | PTI4 — General-purpose I/O |
| Pin produk 69 | PTI5 — General-purpose I/O |
| Pin produk 70 | PTI6 — General-purpose I/O |
| Pin produk 71 | PTI7 — General-purpose I/O |
| Pin produk 72 | TCLK — Timer clock input |
| Pin produk 73 | RESET_b — Active-low external reset |
| Pin produk 74 | JTAG_TMS — JTAG mode select |
| Pin produk 75 | JTAG_TCK — JTAG clock |
| Pin produk 76 | JTAG_TDO — JTAG data out |
| Pin produk 77 | JTAG_TDI — JTAG data in |
| Pin produk 78 | VSS — Ground |
| Pin produk 79 | VDD — MCU supply (2.5V/3.3V) |
| Pin produk 80 | BKGD — Background debug mode pin (single-wire debug) |
Aplikasi Umum
MCF51MM128CLK cocok untuk 6 aplikasis: 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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk MCF51MM128CLK — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | 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) |
Diferensiator Kunci
- Only 32-bit MCU with integrated USB + LCD + 16-bit Sigma-Delta in a single 80-LQFP (vsMCF51JE256CMB)
- Industrial-grade pricing vs automotive-grade derivative (vsMCF51AG128CLF)
- 128KB Flash in legacy ColdFire V1 footprint (vsMCF51MM256CLK)
Catatan Desain
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.
Informasi Konformitas
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.
