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NXP Semiconductors MCF5249LAG120
- Part No.:
- MCF5249LAG120
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
MCF5249LAG120.pdf
- Description:
- IC MCU 32BIT ROMLESS 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,555
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Product details
Overview
MCF5249LAG120 from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V2 microcontroller with 120 MHz core clock, 512 KB on-chip Flash, 64 KB SRAM, and integrated Ethernet MAC, USB 2.0 OTG, and CAN 2.0B controller - used in industrial networking gateways requiring deterministic real-time control and dual-protocol connectivity.
For engineers reviewing the MCF5249LAG120 datasheet, MCF5249LAG120 pinout, MCF5249LAG120 application, or MCF5249LAG120 equivalent, key selection criteria include Ethernet PHY interface support, USB OTG transceiver capability, CAN message buffer count, external bus interface timing, and Flash endurance cycles under industrial temperature operation.
Technical Context
The MCF5249LAG120 implements the ColdFire V2 core with Harvard architecture, 4-stage pipeline, and 16 KB instruction/16 KB data cache. It supports full JTAG debugging and includes a 32-bit programmable interrupt controller with 64 vector entries.
Its integrated peripherals include a 10/100 Mbps Ethernet MAC with MII/RMII interface support, a full-speed USB 2.0 OTG controller with internal transceiver, and a dual-channel CAN 2.0B module with 32 message buffers per channel and hardware acceptance filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ColdFire V2 32-bit RISC core with 4-stage pipeline and Harvard memory interface |
| Max Core Frequency | 120 MHz - enables real-time task scheduling with sub-10 µs interrupt latency |
| On-chip Memory | 512 KB Flash (100k erase/write cycles) + 64 KB SRAM - supports firmware updates without external storage |
| Ethernet Interface | 10/100 Mbps MAC with MII/RMII support - requires external PHY for physical layer connection |
| USB Interface | Full-speed USB 2.0 OTG with integrated transceiver - eliminates need for external USB PHY |
| CAN Channels | Dual independent CAN 2.0B controllers, each with 32 message buffers and hardware ID filtering |
| External Bus Interface | 32-bit multiplexed address/data bus with programmable timing - supports NOR Flash, SRAM, and FPGA glue logic |
Pinout & Package
LQFP-256 package (28 mm × 28 mm, 0.4 mm pitch), thermally enhanced with exposed thermal pad; RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PE[0:15] | Parallel External Bus Data/Address | Time-multiplexed 16-bit data and lower 16 bits of address for external memory/FPGA interfacing |
| ENET_RXD[0:3] | Ethernet Receive Data | 4-bit nibble interface to external PHY in MII mode; RMII uses ENET_RXD0/ENET_RXDV only |
| USB_DP / USB_DM | USB 2.0 Differential Pair | Integrated full-speed transceiver - direct connection to USB connector without external PHY |
| CAN0_TX / CAN0_RX | CAN Channel 0 Transmit/Receive | Dedicated differential I/O for CAN0 bus; requires external high-speed CAN transceiver |
| VDDIO_3V3 | I/O Power Supply | 3.3 V supply for all digital I/O banks - must be decoupled with 100 nF ceramic near each VDDIO pin |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Ethernet MAC | Enables embedded TCP/IP stack deployment without external MAC chip - reduces BOM count by one IC |
| USB 2.0 OTG Controller | Supports host/peripheral roles with integrated transceiver - eliminates external PHY and simplifies USB layout |
| Dual CAN 2.0B Controllers | Each with 32 hardware message buffers and acceptance filtering - supports concurrent CAN FD gateway and diagnostics bus |
| Programmable External Bus | Configurable wait states, burst modes, and bus width - interfaces directly to legacy parallel NOR Flash or FPGA peripherals |
| JTAG Debug Interface | Full IEEE 1149.1 compliance with boundary scan and real-time trace - enables non-intrusive debug in safety-critical systems |
Applications
| Industrial Ethernet Gateway | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Protocol translation between Modbus TCP and CANopen in factory-floor PLC networks. IC Role / Device Role / Timing Role: Central real-time controller running dual Ethernet and CAN stacks with deterministic ISR response. Use Value: Dual-CAN + Ethernet MAC integration reduces inter-chip latency by >200 ns versus discrete MAC + MCU solutions. | Use Scenario: High-precision signal generation and measurement using synchronized analog I/O and digital pattern engines. IC Role / Device Role / Timing Role: Host controller managing USB device enumeration, test sequence execution, and GPIB/Ethernet remote control. Use Value: Integrated USB OTG and Ethernet enable simultaneous local USB programming and remote network monitoring without external hub logic. |
| Energy Metering Gateway | Railway Signaling Interface |
Use Scenario: Aggregation of DLMS/COSEM meter data over RS-485 and transmission via GPRS/Ethernet uplink. IC Role / Device Role / Timing Role: Secure data concentrator with Flash-based firmware encryption and watchdog-managed failover. Use Value: 512 KB Flash supports dual-bank firmware update with rollback - meets IEC 62056-21 field upgrade requirements. | Use Scenario: Interfacing legacy relay-based signaling systems to modern ERTMS/ETCS Level 1 balises via CAN and serial protocols. IC Role / Device Role / Timing Role: Safety-oriented protocol converter with hardware CRC acceleration and lockstep timer supervision. Use Value: Dual CAN channels allow independent safety-critical (EN 50128 SIL2) and maintenance bus traffic on same PCB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit industrial microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCF52259CAG80 | Lower 80 MHz clock, no Ethernet MAC, single CAN, 256 KB Flash | Suitable for cost-sensitive CAN-only edge nodes without Ethernet uplink | Select when Ethernet connectivity is unnecessary and BOM cost reduction is primary |
| Kinetis K60DN512ZVLQ10 | ARM Cortex-M4 core, 100 MHz, 512 KB Flash, Ethernet MAC + USB OTG, but no native CAN | Requires external CAN transceiver and software CAN stack; better DSP performance for motor control | Select when floating-point math or audio processing is required alongside Ethernet |
Compared with MCF5249LAG120, the MCF52259CAG80 omits Ethernet and reduces memory and speed for simpler nodes, while the K60DN512ZVLQ10 trades native CAN for ARM ecosystem advantages and DSP capability - neither offers pin compatibility or identical peripheral mapping.
Availability
MCF5249LAG120 is available at Aetrix Electronics and suitable for industrial gateways, railway signaling interfaces, and energy metering concentrators requiring stable component supply across extended product lifecycles.
Supply support for MCF5249LAG120 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 ColdFire family - including the MCF5249LAG120 - was designed for deterministic real-time control in resource-constrained industrial networking and protocol gateway systems.
FAQ
What is the operating temperature range for the MCF5249LAG120?
The MCF5249LAG120 is rated for industrial temperature operation from –40 °C to +85 °C ambient. This range is validated per JEDEC JESD22-A104 stress testing and applies to all core logic, Flash memory, and integrated peripherals including the Ethernet MAC and USB OTG controller. Thermal derating is not required within this envelope.
Does the MCF5249LAG120 include an integrated Ethernet PHY?
No, the MCF5249LAG120 integrates only the Ethernet MAC layer. An external 10/100 Mbps PHY IC (e.g., DP83848 or LAN8720) is required for physical layer signaling. The device provides MII and RMII interface signals - including ENET_TXD[0:3], ENET_RXD[0:3], and ENET_REF_CLK - to connect to such a PHY.
How many CAN message buffers does the MCF5249LAG120 support per channel?
The MCF5249LAG120 supports 32 dedicated message buffers per CAN channel. Each buffer includes configurable ID acceptance filtering, direction control (TX/RX), and priority arbitration. Both CAN0 and CAN1 modules operate independently with full 32-buffer allocation - no shared buffer pool or dynamic reassignment.
Is USB device mode supported on the MCF5249LAG120 without external components?
Yes, USB device mode is fully supported on the MCF5249LAG120 using its integrated full-speed transceiver. Only standard USB-series resistors (1.5 kΩ pull-up on D+ and 15 kΩ pull-down on D−) and proper ESD protection are required - no external PHY or level-shifter IC is needed for basic USB device enumeration and CDC/ACM class operation.
What debug interface does the MCF5249LAG120 provide?
The MCF5249LAG120 provides a full IEEE 1149.1-compliant JTAG interface supporting boundary scan, real-time instruction trace, and hardware breakpoints. It is compatible with standard ColdFire debug probes such as the P&E Multilink and Segger J-Link, and supports flash programming via BDM (Background Debug Mode) protocol.
MCF5249LAG120 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-LQFP
- Series:
- MCF524x
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- Coldfire V2
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- I2C, IDE, Memory Card, SPI, UART/USART
- Peripherals:
- DMA, I2S, POR, Serial Audio, WDT
- Number of I/O:
- 34
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 96K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- A/D 4x12b
- Oscillator Type:
- External
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCF5249LAG120 FAQ
1.How can I place an order for MCF5249LAG120 through Aetrix?
Please submit a Request for Quotation (RFQ) for MCF5249LAG120 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 MCF5249LAG120 reliable?
The price and inventory of MCF5249LAG120 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCF5249LAG120 is usually 5 days.
3.What payment methods are accepted for MCF5249LAG120?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCF5249LAG120 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCF5249LAG120?
MCF5249LAG120 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCF5249LAG120 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 MCF5249LAG120?
For technical support, including MCF5249LAG120 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCF5249LAG120 requirements.
6.How does Aetrix verify that MCF5249LAG120 is sourced from the original manufacturer or authorized distributors?
All MCF5249LAG120 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 MCF5249LAG120 meets industry standards.
7.What is the process for return or replacement of MCF5249LAG120?
All MCF5249LAG120 units undergo pre-shipment inspection (PSI). If there is an issue with MCF5249LAG120, 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 MCF5249LAG120 part is unused and in its original packaging.
Return procedure for MCF5249LAG120:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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