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NXP Semiconductors MCF51AC128AVLKE
- Part No.:
- MCF51AC128AVLKE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MCF51AC128AVLKE.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:541
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Product details
Overview
MCF51AC128AVLKE from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller with CAN interface, 128 KB flash, 32 KB SRAM, and 80-pin LQFP package. It operates up to 50.33 MHz at 2.7–5.5 V, integrates dual analog comparators, 24-channel 12-bit ADC, FTM/TPM timers, and I²C/SCI/SPI peripherals - deployed in industrial motor control and automotive body electronics.
For engineers reviewing the MCF51AC128AVLKE datasheet, MCF51AC128AVLKE pinout, MCF51AC128AVLKE application, or MCF51AC128AVLKE equivalent, key selection criteria include CAN 2.0A/B compliance, 80-pin LQFP mechanical compatibility, V1 ColdFire ISA_C instruction set, 128 KB flash/32 KB RAM memory configuration, and –40°C to 105°C extended temperature operation.
Technical Context
The MCF51AC128AVLKE implements the ColdFire V1 core with background debug module (BDM), executing ISA_C instructions at up to 50.33 MHz. Its system integration includes multipurpose clock generator (MCG) with FLL/PLL, on-chip voltage regulator (VREG), and computer operating properly (COP) watchdog with independent LPO clock source.
Peripherals are tightly coupled via the SIM: two flexible timer modules (FTM1/FTM2) support PWM generation with deadtime insertion and ADC hardware triggering; MSCAN controller provides full CAN 2.0A/B protocol stack with five receive buffers, three prioritized transmit buffers, and bus-off recovery; the 12-bit ADC supports asynchronous sampling and automatic compare interrupts across 24 channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ColdFire V1 32-bit RISC CPU, ISA_C instruction set, 0.76 DMIPS/MHz from flash |
| Max Operating Frequency | 50.33 MHz at 2.7–5.5 V supply - enables real-time control loop execution within sub-μs latency |
| Memory | 128 KB on-chip flash (read/program/erase over full temp/voltage), 32 KB SRAM with security lock |
| CAN Interface | MSCAN module compliant with CAN 2.0A/B, 1 Mbps bit rate, five RX buffers with FIFO, three TX buffers with local priority |
| ADC | 24-channel 12-bit SAR ADC with asynchronous clock option, auto-compare interrupt, and on-chip temperature sensor |
| Timers | Two FTM modules (6+2 channels total), TPM3 (2 channels), all supporting input capture, output compare, and edge/center-aligned PWM |
| I/O | 69 GPIO pins; 16 Rapid GPIO (RGPIO) accessible at CPU clock speed; 8 KBI pins with programmable polarity |
Pinout & Package
Package: 80-pin LQFP, 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant. Pinout validated per Figure 2 (MCF51AC256 Series ColdFire Microcontroller 80-Pin LQFP) in Rev.7 datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTA0 / TxCAN | CAN Transmit Output | Dedicated CAN high-speed differential transmitter output; not available on non-CAN variants |
| PTA1 / RxCAN | CAN Receive Input | Dedicated CAN receiver input with integrated low-pass filter for wakeup detection |
| BKGD / MS | Background Debug / Master Select | Single-wire BDM interface for real-time debugging and flash programming |
| RESET | Active-Low Reset Input | Asynchronous reset assertion; internal pull-up; compatible with external reset supervisors |
| VDD / VSS | Power / Ground | Separate digital (VDD/VSS) and analog (VDDA/VSSA) supplies; VREFH/VREFL define ADC reference |
| PTF0–PTF7 | RGPIO8–RGPIO15 | 16-bit Rapid GPIO port mapped to local 32-bit platform bus - enables single-cycle I/O toggle for timing-critical tasks |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Security | Flash block protection and SRAM access lock prevent unauthorized firmware extraction or modification |
| Low-Power Operation | Three stop modes plus wait mode; peripheral clocks individually disableable to reduce active current in partial wake states |
| CRC Hardware Accelerator | 16-bit CRC-CCITT generator with programmable seed - offloads checksum computation from CPU during firmware updates or data logging |
| Analog Comparator Flexibility | ACMP1/ACMP2 support rail-to-rail operation, internal bandgap reference comparison, and pin-visible output (ACMPxO) |
| Real-Time Debug | 6 hardware breakpoints, on-chip trace buffer, and debug visibility bus (VBUS) enable non-intrusive program flow analysis |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Closed-loop BLDC motor commutation with current sensing, position feedback, and CAN-based command interface. IC Role / Device Role / Timing Role: Primary controller executing FOC algorithm, managing PWM outputs via FTM modules, sampling ADC channels at 100 kSPS, and exchanging status/control frames via MSCAN. Use Value: Integrated 24-channel ADC and dual FTM modules eliminate external signal conditioning and timer ICs; CAN 2.0B compliance ensures interoperability with vehicle networks. | Use Scenario: Central body control module managing door locks, window lift, mirror adjustment, and lighting via LIN/CAN gateways. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves via SCI, routing commands to actuators via RGPIO, and reporting faults over CAN bus. Use Value: 69 GPIOs and 8 KBI inputs support direct switch matrix scanning; COP watchdog and LVD ensure fail-safe behavior in safety-critical zones. |
| Medical Infusion Pumps | Energy Metering Systems |
Use Scenario: Precision fluid delivery system requiring motor control, pressure sensing, user interface, and regulatory-compliant diagnostics. IC Role / Device Role / Timing Role: Safety-monitored controller running dual-core lockstep logic (via software partitioning), sampling analog sensors via ADC, and driving stepper motors using FTM-generated PWM. Use Value: On-chip CRC accelerator validates firmware integrity; ACMPs provide fast overpressure trip detection independent of CPU load. | Use Scenario: DIN-rail mounted electricity meter performing voltage/current sampling, tariff calculation, tamper detection, and HAN communication. IC Role / Device Role / Timing Role: Data acquisition engine synchronizing 24-channel ADC sampling to line cycle, computing RMS/THD in SRAM, and transmitting encrypted logs via SPI-connected secure element. Use Value: 128 KB flash stores multiple tariff tables and cryptographic keys; –40°C to 105°C rating ensures reliability in outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCF51JM128CLK | Same ColdFire V1 core, 128 KB flash, but lacks CAN; uses 64-pin LQFP package (10 mm × 10 mm) | Suitable for cost-sensitive, CAN-free designs where board space is constrained | Select when CAN is unnecessary and smaller footprint reduces PCB area/cost |
| Kinetis K22FN512VLH12 | ARM Cortex-M4 core, 512 KB flash, 128 KB RAM, 80-pin LQFP, includes USB OTG and Ethernet MAC | Targets higher-performance applications requiring connectivity beyond CAN (e.g., fieldbus gateway) | Choose for migration path requiring ARM ecosystem, larger memory, or USB/Ethernet interfaces |
Compared with MCF51AC128AVLKE, MCF51JM128CLK offers identical processing capability without CAN or 80-pin packaging, while Kinetis K22FN512VLH12 delivers significantly more memory and modern peripherals at the cost of architecture change and toolchain migration.
Availability
MCF51AC128AVLKE is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, medical infusion pumps, and energy metering systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MCF51AC128AVLKE 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, IoT, and mobile applications.
The MCF51AC128AVLKE belongs to the ColdFire microcontroller product line, designed specifically for cost-effective, high-integration 32-bit control in harsh-environment applications demanding CAN, precision analog, and robust debug capabilities.
FAQ
What is the maximum operating frequency of the MCF51AC128AVLKE?
The MCF51AC128AVLKE operates at up to 50.33 MHz across its full voltage range (2.7 V to 5.5 V) and temperature range (–40°C to 105°C). This frequency is achieved using the internal MCG with FLL/PLL enabled and is confirmed in Section 1.3.1 of the Rev.7 datasheet. The MCF51AC128AVLKE delivers 0.76 DMIPS per MHz when executing from flash memory.
Does the MCF51AC128AVLKE support CAN 2.0B extended frames?
Yes, the MCF51AC128AVLKE's MSCAN module fully supports CAN 2.0B, including both standard (11-bit) and extended (29-bit) identifier frames. The datasheet specifies support for zero-to-eight-byte data length, programmable bit rates up to 1 Mbps, and flexible maskable identifier filtering - all verified in Table 2 and Section 1.3.1 Feature List.
How much SRAM does the MCF51AC128AVLKE include, and is it battery-backed?
The MCF51AC128AVLKE includes 32 KB of on-chip static RAM (SRAM), as confirmed in Table 1 (Device Comparison) and Section 1.3.1. This SRAM is not battery-backed; however, it supports low-power stop modes where selected peripherals remain clocked, and data retention is maintained as long as VDD remains within specification. No dedicated backup domain or VBAT pin is provided.
What debug interface does the MCF51AC128AVLKE use, and is JTAG supported?
The MCF51AC128AVLKE uses a single-wire Background Debug Mode (BDM) interface via the BKGD/MS pin, as specified in Section 1.3 and Figure 1. It does not support standard JTAG; BDM provides full flash programming, real-time tracing via VBUS, and six hardware breakpoints. This interface is distinct from ARM SWD/JTAG and requires Freescale/NXP BDM-compatible debug probes.
Is the MCF51AC128AVLKE pin-compatible with other members of the MCF51AC256 family?
No - the MCF51AC128AVLKE shares the same 80-pin LQFP package and pinout as MCF51AC256AVLKE (256 KB flash variant), but differs from 64-pin and 44-pin variants. Pin compatibility is limited to same-package variants only; for example, MCF51AC128AVLKE and MCF51AC256AVLKE are pin-compatible, whereas MCF51AC128AVPUE (64-pin LQFP) is not.
MCF51AC128AVLKE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-LQFP
- Series:
- MCF51AC
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- Coldfire V1
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- CANbus, I2C, SCI, SPI
- Peripherals:
- LVD, PWM, WDT
- Number of I/O:
- 69
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 24x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCF51AC128AVLKE FAQ
1.How can I place an order for MCF51AC128AVLKE through Aetrix?
Please submit a Request for Quotation (RFQ) for MCF51AC128AVLKE 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 MCF51AC128AVLKE reliable?
The price and inventory of MCF51AC128AVLKE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCF51AC128AVLKE is usually 5 days.
3.What payment methods are accepted for MCF51AC128AVLKE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCF51AC128AVLKE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCF51AC128AVLKE?
MCF51AC128AVLKE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCF51AC128AVLKE 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 MCF51AC128AVLKE?
For technical support, including MCF51AC128AVLKE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCF51AC128AVLKE requirements.
6.How does Aetrix verify that MCF51AC128AVLKE is sourced from the original manufacturer or authorized distributors?
All MCF51AC128AVLKE 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 MCF51AC128AVLKE meets industry standards.
7.What is the process for return or replacement of MCF51AC128AVLKE?
All MCF51AC128AVLKE units undergo pre-shipment inspection (PSI). If there is an issue with MCF51AC128AVLKE, 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 MCF51AC128AVLKE part is unused and in its original packaging.
Return procedure for MCF51AC128AVLKE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MCF51AC128AVLKE Tags
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