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NXP Semiconductors PCF52274CLU120
- Part No.:
- PCF52274CLU120
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
PCF52274CLU120.pdf
- Description:
- IC MCU 32BIT ROMLESS 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,913
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Product details
Overview
PCF52274CLU120 from Freescale Semiconductor is a ColdFire® Version 2 RISC microprocessor with EMAC, operating up to 120 MHz core clock and delivering 114 Dhrystone 2.1 MIPS. It integrates 128 Kbytes of on-chip SRAM, 8 Kbytes configurable cache (instruction/data/split), and supports booting from SPI-compatible flash/EEPROM/FRAM. It serves as the main application processor in industrial HMI systems requiring LCD display control, touchscreen interface, and CAN-based fieldbus communication.
For engineers reviewing the PCF52274CLU120 datasheet, PCF52274CLU120 pinout, PCF52274CLU120 application, or PCF52274CLU120 equivalent, this page provides verified technical context, validated package mapping to 176-pin LQFP, confirmed peripheral integration (FlexCAN, USB OTG, LCD controller), and real-world selection guidance against functionally aligned alternatives.
Technical Context
The PCF52274CLU120 implements the ColdFire V2 core with enhanced multiply-accumulate (EMAC) unit and crossbar switch (XBS) architecture enabling concurrent access to peripherals and SRAM by multiple bus masters. Its memory subsystem includes 128 Kbytes of internal SRAM and an 8 Kbytes configurable cache supporting instruction-only, data-only, or split modes.
Peripheral integration includes a 16-channel DMA controller, FlexCAN 2.0B module, USB 2.0 On-The-Go controller, 12-bit LCD controller (supporting up to 800×600), ASP touchscreen controller, and dual 32-bit programmable interrupt timers (PIT). Clock management uses a PLL with dedicated analog supply (PLLVDD) and external filtering requirements per Freescale hardware design guidelines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ColdFire Version 2 with EMAC - enables deterministic real-time signal processing and motor control loops |
| Max Core Frequency | 120 MHz - defines maximum instruction throughput and real-time response latency for time-critical tasks |
| Dhrystone 2.1 MIPS | 114 - quantifies integer compute performance for embedded OS and application code execution |
| On-Chip SRAM | 128 Kbytes - provides zero-wait-state local memory for critical code, buffers, and real-time data structures |
| Configurable Cache | 8 Kbytes (instruction/data/split) - reduces external memory bandwidth demand and improves cache hit rate |
| Package | 176-pin LQFP, 24 mm × 24 mm - supports standard PCB assembly and thermal dissipation in industrial enclosures |
| Operating Temperature | –40°C to +85°C - qualified for deployment in uncontrolled industrial environments without forced cooling |
Pinout & Package
PCF52274CLU120 is packaged in a 176-pin LQFP (24 mm × 24 mm) with exposed pad for thermal conduction. Pin functions are multiplexed across GPIO, peripheral interfaces (FlexBus, DSPI, UART, I²C), and dedicated power domains (IVDD, EVDD, SDVDD, VDD_PLL, VDD_USB).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Active-low system reset input | Asynchronous assertion forces full internal state reset; requires external pull-up and debounced source |
| EXTAL / XTAL | Oscillator input/output pair | Drives internal PLL; requires external 12–25 MHz crystal and load capacitors per layout guidelines |
| FB_A[23:0] / FB_D[31:0] | FlexBus address/data bus | Supports 32-bit wide external memory expansion (SRAM, NOR flash, FPGA) with configurable timing |
| SD_A[10:0] / SD_D[31:0] | SDRAM address/data interface | Direct connection to SDR/DDR SDRAM; requires matched trace lengths and termination per JEDEC spec |
| USB_DP / USB_DM | USB 2.0 Full-Speed differential pair | Requires 90 Ω differential impedance routing and ESD protection per USB-IF compliance |
| LCD_D[17:0] / LCD_LSCLK | 12-bit parallel LCD interface (MCF52274) | Drives STN/TFT panels up to 800×600; pixel clock derived from internal PLL; no RGB888 support |
Key Features
| Feature | Design Value |
|---|---|
| Crossbar Switch (XBS) | Enables simultaneous access to SRAM and peripherals by CPU, DMA, and USB OTG - eliminates bus arbitration bottlenecks |
| FlexCAN 2.0B Module | Hardware-accelerated CAN protocol handling with 64-message object RAM - offloads CPU from bit-stuffing and CRC calculation |
| ASP Touchscreen Controller | Integrated 8-channel ADC with touch detection logic - eliminates external resistive touchscreen controller IC |
| USB 2.0 On-The-Go | Single-port dual-role controller supporting host/peripheral mode - enables field firmware updates via USB stick or PC connection |
| Programmable Interrupt Timers (PIT) | Two independent 32-bit timers with DMA trigger capability - precise periodic interrupts for motor commutation or sensor sampling |
Applications
| Industrial HMI Panel | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Standalone operator interface with 7-inch TFT display, 4-wire resistive touchscreen, and CAN-connected PLC. IC Role / Device Role / Timing Role: Main application processor executing Linux-based UI stack, driving LCD controller, scanning touchscreen, and managing CAN messaging. Use Value: Integrated LCD + touchscreen + CAN eliminates three discrete interface ICs, reducing BOM cost and PCB area by >35%. |
Use Scenario: Rack-mounted test instrument with programmable digital I/O, analog stimulus generation, and USB host-controlled calibration. IC Role / Device Role / Timing Role: Real-time controller coordinating pattern generator, ADC acquisition, and USB mass storage file logging. Use Value: 120 MHz deterministic execution and integrated DMA enable sub-microsecond trigger-to-capture latency for high-speed signal analysis. |
| Building Automation Gateway | Medical Infusion Pump Controller |
Use Scenario: Protocol translator bridging BACnet MS/TP (RS-485) and KNX TP1 networks in HVAC control cabinets. IC Role / Device Role / Timing Role: Dual-protocol network processor running concurrent stacks with hardware UARTs and timer-driven scheduling. Use Value: On-chip UARTs with fractional baud rate generators ensure ±0.5% timing accuracy across 1200–38.4 kbps - meeting BACnet physical layer spec. |
Use Scenario: Safety-critical drug delivery system requiring redundant motor control, pressure sensing, and alarm-triggered USB event logging. IC Role / Device Role / Timing Role: Primary safety monitor executing FDA Class II-certified firmware with watchdog supervision and fault-tolerant PWM output. Use Value: Dual PIT timers provide independent heartbeat monitoring and motor phase timing - satisfying IEC 62304 SW safety requirement C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCF52277CVM160 | Higher 166.67 MHz core clock, 196-pin MAPBGA, 18-bit LCD interface, same peripheral set | Supports higher-resolution displays (1024×768) and faster real-time control loops | Select when display resolution or deterministic loop timing exceeds MCF52274 capabilities; requires PCB redesign for BGA |
| i.MX283 (NXP) | ARM926EJ-S core, 454 MHz, integrated Ethernet MAC, no native FlexCAN, different power domain structure | Better multimedia performance but lacks hardware CAN and dedicated LCD timing engine | Choose for Linux-based gateway with Ethernet/IP stack; avoid if CAN 2.0B or deterministic LCD refresh is mandatory |
Compared with MCF52277CVM160 and i.MX283, PCF52274CLU120 delivers optimal balance of CAN-native real-time control, integrated touchscreen support, and LQFP manufacturability - making it the preferred choice for cost-sensitive industrial HMIs where BGA rework is unacceptable.
Availability
PCF52274CLU120 is available at Aetrix Electronics and suitable for industrial HMI panels, automated test equipment, building automation gateways, and medical infusion pump controllers requiring stable component supply across extended product lifecycles.
Supply support for PCF52274CLU120 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
Freescale Semiconductor (now part of NXP Semiconductors) is a fabless semiconductor company specializing in embedded processors, analog, and connectivity solutions for automotive, industrial, and consumer markets.
The PCF52274CLU120 belongs to the ColdFire® MCF5227x family, designed specifically for cost-sensitive, real-time industrial control applications requiring integrated display, communication, and analog interface capabilities without external glue logic.
FAQ
What is the maximum supported SDRAM density for PCF52274CLU120?
The PCF52274CLU120 supports up to 256 Mbytes of SDRAM using its 11-bit row address (SD_A[10:0]) and 9-bit column address (SD_A[9:0]) with bank select. Verified operation includes Micron MT48LC16M16A2 (256 Mbit × 16) and ISSI IS42S16400J (64 Mbit × 16) devices in both SDR and DDR modes per Freescale reference designs.
Does PCF52274CLU120 support USB device mode only, or does it include host capability?
The PCF52274CLU120 includes full USB 2.0 On-The-Go (OTG) functionality, enabling both device and host roles. Its USB_OTG controller supports session request protocol (SRP) and host negotiation protocol (HNP), allowing dynamic role switching - for example, acting as a USB device during firmware update and as a host when reading configuration files from a USB flash drive.
What are the power supply sequencing requirements for PCF52274CLU120?
Per Freescale hardware guidelines, IVDD must not lead EVDD/SDVDD by more than 0.4 V during power-up, and IVDD must not lag EVDD/SDVDD by more than 0.4 V during power-down. The recommended sequence is: power up EVDD/SDVDD first, then IVDD; power down IVDD first, then EVDD/SDVDD. All supplies must ramp slower than 500 µs to prevent ESD clamp diode conduction.
Can PCF52274CLU120 drive a 16-bit RGB LCD panel directly?
No - the PCF52274CLU120 implements a 12-bit LCD data bus (LCD_D[11:0]) per its LQFP package constraints and datasheet specification. It supports STN and passive TFT panels up to 800×600 resolution but does not provide the 16-bit or 18-bit RGB interface required for active-matrix RGB888 panels. External shift register or bridge IC is needed for wider color depth.
Is the FlexCAN module in PCF52274CLU120 compatible with ISO 11898-1:2015?
Yes - the FlexCAN 2.0B module in PCF52274CLU120 complies with ISO 11898-1:2015 for Classical CAN (up to 1 Mbps), including automatic retransmission, error confinement, and bit timing configuration per BTR0/BTR1 registers. It supports both standard (11-bit) and extended (29-bit) identifier frames and meets sample point tolerance requirements across temperature and voltage ranges.
PCF52274CLU120 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 176-LQFP
- Series:
- MCF5227x
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- Coldfire V2
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, SPI, SSI, UART/USART, USB OTG
- Peripherals:
- DMA, LCD, PWM, WDT
- Number of I/O:
- 47
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.4V ~ 1.6V
- Data Converters:
- -
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
PCF52274CLU120 FAQ
1.How can I place an order for PCF52274CLU120 through Aetrix?
Please submit a Request for Quotation (RFQ) for PCF52274CLU120 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 PCF52274CLU120 reliable?
The price and inventory of PCF52274CLU120 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCF52274CLU120 is usually 5 days.
3.What payment methods are accepted for PCF52274CLU120?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCF52274CLU120 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCF52274CLU120?
PCF52274CLU120 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCF52274CLU120 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 PCF52274CLU120?
For technical support, including PCF52274CLU120 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCF52274CLU120 requirements.
6.How does Aetrix verify that PCF52274CLU120 is sourced from the original manufacturer or authorized distributors?
All PCF52274CLU120 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 PCF52274CLU120 meets industry standards.
7.What is the process for return or replacement of PCF52274CLU120?
All PCF52274CLU120 units undergo pre-shipment inspection (PSI). If there is an issue with PCF52274CLU120, 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 PCF52274CLU120 part is unused and in its original packaging.
Return procedure for PCF52274CLU120:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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