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NXP Semiconductors MCF51AG128VLH
- Part No.:
- MCF51AG128VLH
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MCF51AG128VLH.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,286
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Product details
Overview
MCF51AG128VLH from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller designed for industrial control and appliance systems. It integrates 128 KB flash, 16 KB RAM, dual 12-bit ADCs (24 channels), two flexible timer modules (FTM1/FTM2), and a hardware CRC engine. Operating at up to 50.33 MHz across 2.7–5.5 V, it serves as a high-performance upgrade path from MC9S08AC128 8-bit MCUs.
For engineers reviewing the MCF51AG128VLH datasheet, MCF51AG128VLH pinout, MCF51AG128VLH application, or MCF51AG128VLH equivalent, key selection considerations include its 80-pin LQFP package, ultra-low-power stop modes, background debug interface (BDM), on-chip voltage regulator (VREG), and support for real-time trace via debug visibility bus (VBUS).
Technical Context
The MCF51AG128VLH implements ColdFire Instruction Set Architecture Revision C (ISA_C) with 0.94 DMIPS/MHz performance when executing from internal RAM. Its system integration module (SIM) manages clock distribution, reset sequencing, and peripheral enable/disable via dedicated registers - including independent peripheral clock gating to reduce dynamic power.
It features a dual-ADC architecture with asynchronous sampling clocks, hardware-triggered ping-pong mode, and integrated temperature sensor. The FTM modules support deadtime insertion, synchronized register loading, and complementary PWM outputs - enabling precise motor control timing without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ColdFire V1, 32-bit RISC, ISA_C compliant - enables deterministic interrupt latency and efficient code density for embedded real-time tasks. |
| Max Clock Frequency | 50.33 MHz at 2.7–5.5 V - supports high-speed control loops and protocol stack processing in industrial automation. |
| Flash Memory | 128 KB on-chip flash with block protection - allows secure firmware storage and field updates without external memory. |
| RAM | 16 KB SRAM with security lock - provides fast data buffering and stack space for multitasking RTOS environments. |
| ADC | 24-channel, 12-bit SAR ADC with dual-sample hardware triggers - enables simultaneous voltage/current sensing in motor drives or power supplies. |
| Timers | Two 6-channel FTM modules + TPM3 - delivers 12 independent PWM outputs with deadtime control for 3-phase inverter gate driving. |
| Debug Interface | Single-wire BDM with 6 hardware breakpoints and on-chip trace buffer - supports non-intrusive real-time debugging in resource-constrained systems. |
Pinout & Package
Package: 80-pin LQFP (14 mm × 14 mm), RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Power supply / Ground | Dual VDD (digital core) and VDDA (analog) rails with separate VSSA ground - minimize noise coupling into ADC and comparators. |
| PTG6 / PTG5 | XTAL / EXTAL | Crystal oscillator inputs for primary clock source - supports 1–16 MHz crystals or ceramic resonators for stable timing reference. |
| BKGD/MS | Background Debug | Single-wire BDM interface - enables programming, breakpoint setting, and memory inspection using standard Freescale BDM tools. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up - ensures reliable initialization after power-on or brownout conditions. |
| PTF0–PTF7 | RGPIO8–RGPIO15 | Rapid GPIO pins connected to local 32-bit bus - support atomic set/clear/toggle operations at full CPU clock speed for bit-banged protocols. |
| PTD0–PTD7 | ADP10–ADP7 / CMP1OUT / C1IN2/C1IN3 | Analog input multiplexer inputs for HSCMP1 - allow flexible comparator reference selection and analog signal routing without external components. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power stop modes | Three stop modes with sub-μA current draw - extends battery life in portable industrial sensors and remote monitoring devices. |
| Hardware CRC module | CRC16-CCITT compliant (x¹⁶ + x¹² + x⁵ + 1) with programmable seed - accelerates firmware integrity checks and communication frame validation. |
| Independent clocked watchdog (WDOG) | Windowed timeout with high-granulation configuration - prevents runaway code while allowing legitimate long-latency operations like flash erase. |
| iEvent logic unit | Programmable boolean combiner of four input signals - generates custom hardware triggers for DMA, interrupts, or FTM reload without CPU overhead. |
| External watchdog monitor (EWM) | Dedicated output (EWM_out) and input (EWM_in) pins - enables coordinated reset of companion ICs (e.g., power management ICs) during system fault recovery. |
Applications
| Industrial Motor Control | Smart Appliance HMI |
|---|---|
Use Scenario: Closed-loop control of BLDC motors in HVAC blowers or washing machine drum drives. IC Role / Device Role / Timing Role: Main controller executing FOC algorithms, generating six complementary PWM outputs via FTM1/FTM2 with synchronized deadtime. Use Value: On-chip ADC sampling at 12-bit resolution with hardware-triggered dual acquisition reduces current-sensing latency and eliminates external sample-and-hold circuitry. | Use Scenario: Touchless user interface with capacitive proximity sensing and LED dimming in refrigerators or ovens. IC Role / Device Role / Timing Role: System-on-chip managing capacitive sense scanning, RGB LED PWM dimming, and I²C communication with display driver. Use Value: Integrated iEvent module generates precise timing pulses for LED current regulation while freeing CPU cycles for touch algorithm execution. |
| Energy Metering Subsystem | Factory Automation I/O Module |
Use Scenario: Voltage/current measurement and tamper detection in DIN-rail mounted electricity meters. IC Role / Device Role / Timing Role: Data acquisition controller interfacing shunt-based current sensors and isolation amplifiers via ADC and SPI. Use Value: Hardware CRC engine validates meter firmware and communication frames, satisfying IEC 62056-21 data integrity requirements. | Use Scenario: Distributed digital I/O node collecting status from limit switches and driving solenoid valves in PLC-controlled assembly lines. IC Role / Device Role / Timing Role: Real-time I/O processor with deterministic response to edge-triggered interrupts from 69 GPIO pins. Use Value: Programmable glitch filter and hysteresis on all inputs eliminate contact bounce artifacts without external RC networks or software debouncing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Kinetis K22FN512VLH12 | ARM Cortex-M4 core, 120 MHz, 512 KB flash, no ColdFire ISA compatibility | Requires full firmware rewrite; supports floating-point and DSP instructions not available in ColdFire V1 | Choose for new designs needing higher compute throughput and modern toolchain support. |
| MCF51JM128VLH | Same ColdFire V1 core, identical pinout and peripheral set, but adds USB OTG PHY and enhanced security features | Drop-in replacement with extended connectivity - requires minor firmware changes for USB stack integration | Choose when USB device functionality or advanced cryptographic acceleration is required. |
Compared with K22FN512VLH12 and MCF51JM128VLH, the MCF51AG128VLH offers proven ColdFire ecosystem compatibility and lower power consumption in stop modes, making it optimal for cost-sensitive, legacy-compatible industrial upgrades where USB or floating-point math is unnecessary.
Availability
MCF51AG128VLH is available at Aetrix Electronics and suitable for industrial motor control, smart appliance HMI, energy metering subsystems, and factory automation I/O modules requiring stable component supply and long-term manufacturing continuity.
Supply support for MCF51AG128VLH includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications.
The MCF51AG128VLH belongs to the ColdFire V1 microcontroller product line, engineered specifically for cost-optimized, low-power industrial control applications requiring deterministic real-time performance and robust peripheral integration without ARM licensing overhead.
FAQ
What is the maximum operating frequency of the MCF51AG128VLH?
The MCF51AG128VLH operates at up to 50.33 MHz across its full 2.7–5.5 V supply range. This frequency is achievable with internal clock sources (ICS FLL) or external crystal oscillators (XOSC), and performance is validated per Freescale Document Number MCF51AG128 Rev. 5. The MCF51AG128VLH delivers 0.94 DMIPS/MHz when running from internal RAM, making it suitable for demanding real-time control tasks.
Does the MCF51AG128VLH support hardware debugging?
Yes, the MCF51AG128VLH includes a single-wire background debug module (BDM) compliant with ColdFire V1 specification. It supports six hardware breakpoints (four PC, one address pair, one data), real-time trace via the debug visibility bus (VBUS), and on-chip trace buffer with programmable start/stop conditions. These capabilities are fully documented in the MCF51AG128VLH datasheet and require no external JTAG adapter.
What package type is used for the MCF51AG128VLH?
The MCF51AG128VLH uses an 80-pin LQFP package measuring 14 mm × 14 mm. This package is explicitly listed in Table 21 of the official datasheet (Rev. 5, June 2010) and features exposed thermal pad compatibility, RoHS compliance, and moisture sensitivity level 3. Pin assignments match Figure 2 and Table 3 in the same document.
Can the MCF51AG128VLH operate in low-power modes?
Yes, the MCF51AG128VLH supports three ultra-low-power stop modes and a reduced-power wait mode. In Stop3 mode, current consumption drops below 1 μA while retaining RAM contents and enabling wake-up via I²C address match or external interrupt. Peripheral clock enable registers allow selective disabling of unused modules - a feature confirmed in Section 1.3 and electrical characteristics Table 10 of the MCF51AG128VLH datasheet.
Is the MCF51AG128VLH pin-compatible with other ColdFire derivatives?
The MCF51AG128VLH shares the same 80-pin LQFP footprint and core peripheral mapping with MCF51JM128VLH, enabling mechanical compatibility. However, functional differences exist - such as USB PHY presence in the JM variant - meaning firmware and schematic review is required before substitution. Pin compatibility is confirmed by identical pin numbering and function definitions in Figures 2 and 3 of the MCF51AG128VLH datasheet.
MCF51AG128VLH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- MCF51AG
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- Coldfire V1
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- I2C, SCI, SPI
- Peripherals:
- DMA, LVD, PWM, WDT
- Number of I/O:
- 53
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 19x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCF51AG128VLH FAQ
1.How can I place an order for MCF51AG128VLH through Aetrix?
Please submit a Request for Quotation (RFQ) for MCF51AG128VLH on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MCF51AG128VLH reliable?
The price and inventory of MCF51AG128VLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCF51AG128VLH is usually 5 days.
3.What payment methods are accepted for MCF51AG128VLH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCF51AG128VLH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCF51AG128VLH?
MCF51AG128VLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCF51AG128VLH order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MCF51AG128VLH?
For technical support, including MCF51AG128VLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCF51AG128VLH requirements.
6.How does Aetrix verify that MCF51AG128VLH is sourced from the original manufacturer or authorized distributors?
All MCF51AG128VLH products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MCF51AG128VLH meets industry standards.
7.What is the process for return or replacement of MCF51AG128VLH?
All MCF51AG128VLH units undergo pre-shipment inspection (PSI). If there is an issue with MCF51AG128VLH, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MCF51AG128VLH part is unused and in its original packaging.
Return procedure for MCF51AG128VLH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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