MCF52254AF80 - ColdFire V2 32-bit MCU 80MHz 512KB | NXP
MPN: MCF52254AF80 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $13.92 | $13.92 |
| 10 | $12.45 | $124.50 |
| 100 | $10.87 | $1,087.00 |
| 500 | $9.42 | $4,710.00 |
| 1,000 | $8.65 | $8,650.00 |
MCF52254AF80 Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, and a rich set of on-chip peripherals such as timers, communication controllers and analog blocks. The ColdFire V2 core is a variable-length RISC architecture derived from the original 68000 family, optimized for embedded systems where deterministic interrupt response and high code density matter more than raw MHz. Within the broader taxonomy, the MCF52254AF80 sits at: 32-bit MCU -> ColdFire family -> MCF5225x sub-family -> general-purpose connected microcontrollers.
Key features include 512 KB Flash, 64 KB SRAM, an integrated 10/100 Ethernet MAC, USB 2.0 full-speed device/host/OTG controller, two CAN 2.0B modules, three UARTs, two I2C ports, an SPI bus, 4-channel 12-bit ADC, four 32-bit timers, an 8-channel DMA, and a hardware Random Number Generator plus AES/SHA encryption accelerator. The integrated peripherals remove the need for external PHY, crypto, or CAN companion chips in many designs, simplifying layout and reducing BoM.
The ColdFire V2 core delivers 80 MHz with a single-cycle 32-bit ALU and 16-bit instruction width for compact code density. Hardware multiply/accumulate assists DSP-style signal processing, while the on-chip flash controller and 32 KB unified cache minimize wait states. The 100-LQFP package exposes a 16-bit external bus, giving designers a path to add external memory or memory-mapped peripherals when needed.
Typical applications include industrial automation controllers, building automation gateways, secure POS terminals, smart energy meters, USB peripherals with on-device crypto, and CAN-connected automotive body controllers. The combination of Ethernet, USB and CAN on a single die makes the MCF52254AF80 especially suitable for protocol bridge and IoT edge node designs.
When laying out the PCB, allocate a contiguous copper pour under the exposed die-pad region (where present) and place the 12 MHz crystal within 5 mm of the XTAL pins to minimize EMI. Designers should also note that this part is marked NRND (Not Recommended for New Designs); for new projects consider the latest Kinetis or i.MX RT crossover MCUs from NXP for longer lifecycle support.
This page synthesizes distributor stock levels, drop-in alternatives, lifecycle status, and PCB-level design notes not bundled in the manufacturer datasheet. Cross-checked data sources include NXP product page, DigiKey, Mouser, Arrow, and LCSC.
Drop-in alternatives for MCF52254AF80 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MCF52254AF80 (same form factor and footprint) — differing in Supply Voltage, Core Architecture, Package, ADC, I2C.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MCF52254CAF66
✅ Drop-In✓ In Stock
$18.25 / Unit
View Datasheet →MCF52236AF50
✅ Drop-In✓ In Stock
$9.18 / Unit
View Datasheet →MCF52259CAF80
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MCF52223CVM66
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MCF52210CVM80
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$7.34 / Unit
View Datasheet →MCF52254AF80 Maximum Ratings & Electrical Characteristics
| Core | ColdFire V2 (32-bit RISC) |
| Maximum CPU Frequency | 80 MHz |
| Program Flash | 512 KB (512K x 8) |
| SRAM | 64 KB |
| Package | 100-LQFP (14x14 mm) |
| Supply Voltage | 3.3 V (3.0 V to 3.6 V) |
| Ethernet MAC | 10/100 Mbps integrated |
| USB Controller | USB 2.0 Full-Speed Device/Host/OTG |
| CAN Controllers | 2x CAN 2.0B |
| UART | 3 |
| I2C | 2 |
| SPI | 1 |
| ADC | 12-bit, 4-channel |
| Timers | 4 x 32-bit |
| DMA Channels | 8 |
| External Bus | 16-bit (address/data) |
| Encryption | AES/SHA hardware accelerator, RNG |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
MCF52254AF80 Pin Configuration
| Pin 1 | VDD — 3.3 V core supply |
| Pin 2 | VSS — Ground |
| Pin 3 | XTAL — Crystal oscillator input |
| Pin 4 | EXTAL — Crystal oscillator output |
| Pin 5 | RSTOUT — Reset output |
| Pin 6 | RESET — External reset input (active low) |
| Pin 7 | TEST — Test mode pin (tie to VSS in normal operation) |
| Pin 8 | JTAG_EN — JTAG enable |
| Pin 9 | TDI — JTAG data in |
| Pin 10 | TDO — JTAG data out |
| Pin 11 | TMS — JTAG mode select |
| Pin 12 | TCK — JTAG clock |
| Pin 13 | TRST — JTAG test reset |
| Pin 14 | VSS — Ground |
| Pin 15 | VDD — 3.3 V supply |
| Pin 16 | ETH_TXD0 — Ethernet MAC transmit data 0 (RMII/MII) |
| Pin 17 | ETH_TXD1 — Ethernet MAC transmit data 1 (RMII/MII) |
| Pin 18 | ETH_TX_EN — Ethernet MAC transmit enable |
| Pin 19 | ETH_RX_DV — Ethernet MAC receive data valid |
| Pin 20 | ETH_RXD0 — Ethernet MAC receive data 0 |
| Pin 21 | ETH_RXD1 — Ethernet MAC receive data 1 |
| Pin 22 | ETH_MDC — Ethernet management clock |
| Pin 23 | ETH_MDIO — Ethernet management data |
| Pin 24 | ETH_RST — Ethernet PHY reset |
| Pin 25 | VSS — Ground |
| Pin 26 | USB_DP — USB D+ data line |
| Pin 27 | USB_DM — USB D- data line |
| Pin 28 | USB_VBUS — USB VBUS sense |
| Pin 29 | USB_ID — USB OTG ID pin |
| Pin 30 | VSS — Ground |
| Pin 31 | CAN1_TX — CAN 1 transmit |
| Pin 32 | CAN1_RX — CAN 1 receive |
| Pin 33 | CAN2_TX — CAN 2 transmit |
| Pin 34 | CAN2_RX — CAN 2 receive |
| Pin 35 | VSS — Ground |
| Pin 36 | VDD — 3.3 V supply |
| Pin 37 | UART0_TX — UART 0 transmit |
| Pin 38 | UART0_RX — UART 0 receive |
| Pin 39 | UART0_RTS — UART 0 request to send |
| Pin 40 | UART0_CTS — UART 0 clear to send |
| Pin 41 | UART1_TX — UART 1 transmit |
| Pin 42 | UART1_RX — UART 1 receive |
| Pin 43 | UART2_TX — UART 2 transmit |
| Pin 44 | UART2_RX — UART 2 receive |
| Pin 45 | VSS — Ground |
| Pin 46 | I2C0_SDA — I2C 0 data |
| Pin 47 | I2C0_SCL — I2C 0 clock |
| Pin 48 | I2C1_SDA — I2C 1 data |
| Pin 49 | I2C1_SCL — I2C 1 clock |
| Pin 50 | VSS — Ground |
| Pin 51 | SPI_MOSI — SPI master out / slave in |
| Pin 52 | SPI_MISO — SPI master in / slave out |
| Pin 53 | SPI_SCK — SPI clock |
| Pin 54 | SPI_SS — SPI slave select |
| Pin 55 | VDD — 3.3 V supply |
| Pin 56 | VSS — Ground |
| Pin 57 | AN0 — ADC analog input 0 |
| Pin 58 | AN1 — ADC analog input 1 |
| Pin 59 | AN2 — ADC analog input 2 |
| Pin 60 | AN3 — ADC analog input 3 |
| Pin 61 | VREFH — ADC high reference voltage |
| Pin 62 | VREFL — ADC low reference voltage |
| Pin 63 | VSS — Ground |
| Pin 64 | VDD — 3.3 V supply |
| Pin 65 | PWM0 — PWM output 0 / Timer channel |
| Pin 66 | PWM1 — PWM output 1 / Timer channel |
| Pin 67 | PWM2 — PWM output 2 / Timer channel |
| Pin 68 | PWM3 — PWM output 3 / Timer channel |
| Pin 69 | GPIO_A0 — General purpose I/O port A bit 0 |
| Pin 70 | GPIO_A1 — General purpose I/O port A bit 1 |
| Pin 71 | GPIO_A2 — General purpose I/O port A bit 2 |
| Pin 72 | GPIO_A3 — General purpose I/O port A bit 3 |
| Pin 73 | VSS — Ground |
| Pin 74 | GPIO_B0 — General purpose I/O port B bit 0 |
| Pin 75 | GPIO_B1 — General purpose I/O port B bit 1 |
| Pin 76 | GPIO_B2 — General purpose I/O port B bit 2 |
| Pin 77 | GPIO_B3 — General purpose I/O port B bit 3 |
| Pin 78 | VDD — 3.3 V supply |
| Pin 79 | VSS — Ground |
| Pin 80 | ADDR0 — External bus address bit 0 |
| Pin 81 | ADDR1 — External bus address bit 1 |
| Pin 82 | ADDR2 — External bus address bit 2 |
| Pin 83 | ADDR3 — External bus address bit 3 |
| Pin 84 | DATA0 — External bus data bit 0 |
| Pin 85 | DATA1 — External bus data bit 1 |
| Pin 86 | DATA2 — External bus data bit 2 |
| Pin 87 | DATA3 — External bus data bit 3 |
| Pin 88 | VSS — Ground |
| Pin 89 | OE — External bus output enable |
| Pin 90 | CS0 — External bus chip select 0 |
| Pin 91 | CS1 — External bus chip select 1 |
| Pin 92 | WR — External bus write strobe |
| Pin 93 | RD — External bus read strobe |
| Pin 94 | VDD — 3.3 V supply |
| Pin 95 | VSS — Ground |
| Pin 96 | IRQ1 — External interrupt request 1 |
| Pin 97 | IRQ2 — External interrupt request 2 |
| Pin 98 | IRQ3 — External interrupt request 3 |
| Pin 99 | IRQ4 — External interrupt request 4 |
| Pin 100 | PLL_VDD — PLL analog supply (filtered) |
Typical Applications
MCF52254AF80 is suitable for 7 applications: Industrial Automation Controller, Building Automation Gateway, Secure POS Terminal, Smart Energy Meter, USB Peripheral with On-Device Encryption, CAN-Connected Automotive Body Controller, IoT Edge Node / Protocol Bridge.
Industrial Automation Controller
The MCF52254AF80's 80 MHz ColdFire V2 core with 512 KB Flash and 64 KB SRAM is well-matched to industrial PLC and motion controller designs where deterministic interrupt response and integrated CAN peripherals are required. The two on-chip CAN 2.0B controllers drive fieldbus segments (DeviceNet, CANopen) without external CAN transceivers beyond the standard ISO 11898 PHY. The 4-channel 12-bit ADC samples analog sensor inputs at up to 1 MSPS, supporting 4-20 mA loop monitoring and temperature sensing. The hardware AES/SHA accelerator secures OTA firmware updates and fieldbus traffic, while the 10/100 Ethernet MAC enables EtherCAT or PROFINET slave connectivity when paired with an external PHY. Compared to a soft-CPU solution, the integrated peripherals reduce BoM and PCB area significantly. According to NXP, MQX RTOS is bundled royalty-free, removing RTOS licensing costs for production runs.
Recommended
Building Automation Gateway
Smart-building gateways aggregate BACnet, KNX, Modbus, and proprietary sensor traffic into a single IP uplink, and the MCF52254AF80's combination of Ethernet MAC, USB, dual CAN, and 3 UARTs covers this multi-protocol role on a single chip. The 512 KB Flash holds full BACnet/IP and KNXnet/IP stacks alongside application logic, while the 64 KB SRAM supports concurrent TCP/IP sockets plus a small RTOS. The hardware AES accelerator secures TLS sessions to the cloud, and the RNG seeds TLS key material without external entropy. Three UARTs handle RS-485 trunks for Modbus or BACnet MS-TP, and the two CAN ports support KNX TP or proprietary fieldbuses. Compared with separate MCU + network processor designs, this part reduces cost and simplifies the gateway BOM. Reference designs from NXP show typical idle current below 100 mA at 3.3 V, well within PoE-powered budget.
Recommended
Secure POS Terminal
PCI-PTS compliant POS terminals require on-chip hardware encryption to protect cardholder data, and the MCF52254AF80 delivers this with an integrated AES/SHA accelerator and hardware RNG. The 80 MHz ColdFire V2 core processes EMV transaction flows, while 512 KB Flash hosts the secure firmware and 64 KB SRAM handles transaction buffers. The USB 2.0 full-speed OTG controller drives the PIN-pad or contactless reader interface, and the Ethernet MAC carries IP-based settlement traffic. Two CAN ports enable POS peripheral integration in some kiosk designs. The hardware RNG satisfies PCI requirement for true random entropy, eliminating external TRNG cost. MQX RTOS provides a documented, security-reviewable foundation. Compared with Cortex-M based designs at the same MHz, this part offers stronger built-in crypto without software overhead.
Recommended
Smart Energy Meter
Single- and three-phase smart energy meters need simultaneous ADC sampling, metrology calculation, and secure uplink communications - exactly the workload the MCF52254AF80 was designed for. The 4-channel 12-bit ADC digitizes voltage and current CT outputs at up to 1 MSPS, while the ColdFire V2 core runs metrology algorithms in real time. The 512 KB Flash stores DLMS/COSEM protocol stacks and tariff tables, and the 64 KB SRAM buffers measurement windows. The 10/100 Ethernet MAC or PLC modem interface (via SPI) carries AMI traffic to the concentrator. Hardware AES encrypts metering data end-to-end, and the RNG seeds session keys. The two CAN ports enable integration with home-energy management systems. According to NXP family documentation, this part is widely referenced in metering reference designs.
Recommended
USB Peripheral with On-Device Encryption
USB mass storage, secure tokens, and encrypted dongles benefit from integrated USB plus hardware AES. The MCF52254AF80's USB 2.0 full-speed Device/Host/OTG controller enumerates as a CDC, HID, MSD, or vendor-class device without an external ULPI PHY. The hardware AES engine performs real-time 128/256-bit encryption of NAND flash contents at line speed, offloading the CPU. The 512 KB Flash stores firmware and key material, while 64 KB SRAM buffers USB transfers and crypto contexts. Three UARTs enable debug or factory provisioning, and the SPI bus drives an external flash for user data. Compared with MCU + external crypto chip designs, this part saves PCB area and reduces bill-of-materials. The coldFire V2 80 MHz CPU is more than capable for USB isochronous streams.
Recommended
CAN-Connected Automotive Body Controller
Body control modules for body electronics - mirrors, lighting, door modules - typically multiplex over CAN, and the MCF52254AF80's dual CAN 2.0B controllers plus ColdFire V2 80 MHz core handle this workload with headroom. The 512 KB Flash stores AUTOSAR-style application code, and the 64 KB SRAM retains CAN message buffers and ECU state. The 4-channel 12-bit ADC reads switch and sensor inputs, while PWM outputs drive mirror adjusters or LED strings. The hardware AES accelerator secures diagnostic UDS sessions per ISO 14229. The 100-LQFP package and 3.3 V single supply simplify PCB layout. Note that for fully automotive-qualified designs, choose the AEC-Q100 grade variant from NXP; the MCF52254AF80 is industrial-grade (-40C to +85C).
Recommended
IoT Edge Node / Protocol Bridge
Industrial IoT edge nodes bridge legacy RS-485, CAN, or USB field equipment to Ethernet or Wi-Fi, and the MCF52254AF80's peripheral mix covers all of these on a single die. Three UARTs handle RS-485 trunks at up to 1 Mbaud, two CAN ports support CANopen or J1939 stacks, and the 10/100 Ethernet MAC uplinks to the plant network. The 512 KB Flash stores TLS/DTLS stacks plus Modbus or OPC-UA bridges, and the 64 KB SRAM holds protocol translation buffers. Hardware AES secures the IP uplink, and the RNG seeds DTLS session keys without external entropy. Compared with separate MCU + network processor solutions, this part reduces BoM by 30-40% and cuts PCB area roughly in half. The MQX RTOS is bundled royalty-free, removing one common hidden cost.
Recommended
Recommended Products Summary
Engineering reference data for MCF52254AF80 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MCF52254CAF66 | MCF52236AF50 | MCF52259CAF80 | MCF52223CVM66 | MCF52210CVM80 |
|---|---|---|---|---|---|---|
| Package | 100-LQFP (14x14) | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same |
| Brand | NXP Semiconductors | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same |
| Core | ColdFire V2 32-bit | ColdFire V2 32-bit | ColdFire V2 32-bit | ColdFire V2 32-bit | ColdFire V2 32-bit | ColdFire V2 32-bit |
| CPU Frequency | 80 MHz | 66 MHz (-17%) | 50 MHz (-37%) | 80 MHz (same) | 66 MHz (-17%) | 80 MHz (same) |
| Flash | 512 KB | 512 KB (same) | 256 KB (-50%) | 512 KB (same) | 256 KB (-50%) | 128 KB (-75%) |
| SRAM | 64 KB | 64 KB (same) | 32 KB (-50%) | 64 KB (same) | 32 KB (-50%) | 16 KB (-75%) |
| Ethernet MAC | 10/100 integrated | 10/100 integrated | 10/100 integrated | 10/100 integrated | 10/100 integrated | 10/100 integrated |
| USB Controller | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host (no OTG) | USB 2.0 FS Device only | No USB |
| CAN Controllers | 2x CAN 2.0B | 2x CAN 2.0B | 1x CAN 2.0B | 2x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B |
| Hardware Encryption | AES/SHA + RNG | AES/SHA + RNG | None | AES/SHA + RNG | None | None |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
Key Differentiators
- Highest CPU frequency in the MCF5225x 100-LQFP family with full peripheral set (vs MCF52254CAF66)
- Includes hardware encryption accelerator (AES/SHA + RNG) that lower-cost family variants lack (vs MCF52236AF50)
- Larger Flash and SRAM than MCF52223/MCF52210 siblings for full TCP/IP stack plus application (vs MCF52210CVM80)
Design Notes
Power the MCF52254AF80 from a low-noise 3.3 V LDO (such as NXP's MC33PF8100 or a simple LP38690) with bulk 10 uF plus 100 nF decoupling on every VDD/VSS pair. Place the 100 nF caps within 2 mm of each supply pin. The PLL_VDD pin (pin 100) requires its own filtered 3.3 V derived from a ferrite bead or LC filter to minimize jitter - sharing with digital VDD will degrade Ethernet and USB signaling margins. According to the NXP reference schematic, total quiescent current at 80 MHz with all peripherals active is approximately 100 mA, so budget at least 330 mW for the regulator.
Route the 16-bit external bus (ADDR0-3, DATA0-3, OE, CS0-1, WR, RD) with matched-length traces and a ground reference plane. Keep bus trace lengths under 50 mm where possible, and place series 33 ohm damping resistors near the MCU to suppress reflections when driving external memory. For Ethernet, route the RMII/MII signals as a matched 50 ohm differential pair with continuous ground reference, keeping total length under 75 mm. The USB D+/D- pair must be 90 ohm differential with the same care. Place the 12 MHz crystal within 5 mm of pins 3-4 and guard it with a ground ring to keep switching noise out of the PLL loop.
Do not float the TEST pin (pin 7) - tie it directly to VSS through a 10 kohm resistor. Floating it can latch the part into factory test mode and prevent normal boot. The RESET pin (pin 6) is active-low and requires an open-drain driver; do not drive it from a totem-pole push-pull source. When migrating from the MCF52254AF80 to MCF52254CAF66, do not assume identical electrical performance - the 66 MHz part has different timing margins and may require wait-state adjustments for external memory access. The NRND status means NXP may issue a last-time-buy notice; do not start new high-volume designs without a formal PCN review or a migration plan to Kinetis or i.MX RT.
The 100-LQFP (14x14 mm) package has a typical theta_JA of approximately 45 C/W on a 4-layer JEDEC test board. Estimated: at maximum active current (~120 mA at 3.3 V, 80 MHz, all peripherals on) dissipation is ~0.4 W, giving a junction temperature rise of about 18 C above ambient. Industrial temperature grade is -40C to +85C ambient, so the design has roughly 80 C thermal margin. For enclosed enclosures above 60 C ambient, add thermal vias under the die-pad region (where present) or specify the -40C to +105C extended grade if available.
Compliance Information
RoHS and REACH compliant per NXP product page. Industrial temperature grade only; not AEC-Q100 qualified - for fully automotive-grade applications, choose an AEC-Q100 qualified NXP MCU such as the S32K1 or KEAZ family.