MCF52258CAG66 - ColdFire V2 32-bit MCU 512KB Flash 144-LQFP | NXP
MPN: MCF52258CAG66 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $22.04 | $22.04 |
| 10 | $20.12 | $201.20 |
| 100 | $17.85 | $1,785.00 |
| 500 | $15.4 | $7,700.00 |
| 1,000 | $13.65 | $13,650.00 |
MCF52258CAG66 Overview
A ColdFire V2 microcontroller is a 32-bit embedded processor derived from the original Freescale (now NXP) 68k architecture lineage, optimized for low power consumption and deterministic real-time response. ColdFire MCUs belong to the broader 32-bit microcontroller category which sits in the hierarchy MCU -> embedded processor -> semiconductor device. The V2 variant uses a Variable-Length RISC encoding (ColdFire ISA-B) that achieves ARM-class code density at lower MHz, well suited to networked appliances and protocol bridging workloads.
Key features of the MCF52258CAG66 include 64KB SRAM, a 12-bit ADC with up to 8 analog input channels, four 32-bit timer/PWM units, three UARTs, two I2C controllers, and an external bus interface for memory expansion. The integrated hardware encryption block supports DES, 3DES, AES, and MD5/SHA-1 hashing, offloading secure handshake computation from the CPU. The 144-LQFP package exposes the full external bus and most peripheral pins, enabling maximum I/O flexibility for gateway and bridge designs.
The ColdFire V2 core executes most instructions in a single cycle at 66 MHz, with an enhanced Multiply-Accumulate (EMAC) unit accelerating DSP-style signal processing tasks. The on-chip voltage regulator and low-power modes (Stop, Wait, Doze) reduce quiescent current for energy-constrained deployments. Free MQX RTOS support from NXP further simplifies firmware development for deterministic multi-tasking.
Typical applications include industrial Ethernet gateways, building automation controllers, USB-to-CAN protocol bridges, smart metering data concentrators, and serial-to-Ethernet server modules. Designers commonly pair it with external PHYs for Ethernet and PHY/ transceiver ICs for CAN isolation.
When designing with this part, evaluate thermal dissipation: at full 66 MHz operation the typical core supply current is in the tens of mA range, well within the LQFP-144 thermal envelope. Confirm RoHS and NRND status with the supplier when sourcing for long-lifecycle industrial SKUs.
This page consolidates NXP datasheet specifications, distributor pricing and drop-in alternatives not found on individual retailer pages, helping engineers shortlist the right ColdFire V2 MCU for embedded networking designs.
Drop-in alternatives for MCF52258CAG66 — 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 MCF52258CAG66 (same form factor and footprint) — differing in ADC, Package, Connectivity, Operating Temperature, Peripherals.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MCF52256CAG66
✅ Drop-In📋 Reference alternative (not in catalog)
MCF52259CAG66
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MCF52259CAG80
✅ Drop-In✓ In Stock
$25.59 / Unit
View Datasheet →MCF52258CAG66R
✅ Drop-In📋 Reference alternative (not in catalog)
MCF52258AG80
✅ Drop-In📋 Reference alternative (not in catalog)
MCF5212CAE66R
✅ Drop-In📋 Reference alternative (not in catalog)
MCF52258CAG66 Maximum Ratings & Electrical Characteristics
| Core Architecture | ColdFire V2 (MCF5225x family) |
| Data Bus Width | 32-bit |
| Maximum CPU Frequency | 66 MHz |
| Program Memory Size | 512 KB Flash |
| RAM Size | 64 KB |
| ADC | 12-bit, up to 8 channels |
| Ethernet | 10/100 MAC (MII/RMII) |
| USB | USB 2.0 Full-Speed OTG |
| CAN | CAN 2.0B |
| Encryption | AES, DES/3DES, MD5, SHA-1 |
| UART | 3 |
| I2C | 2 |
| Timers | 4 x 32-bit (GPT/PWM) |
| Package | 144-LQFP (20x20 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
MCF52258CAG66 Pin Configuration
| Pin 1 | VDD — Core supply voltage |
| Pin 2 | VSS — Ground reference |
| Pin 3 | ETXCLK — Ethernet transmit clock (MII) |
| Pin 4 | ECRS — Ethernet carrier sense |
| Pin 5 | ETXEN — Ethernet transmit enable |
| Pin 6 | ETXD0 — Ethernet transmit data 0 |
| Pin 7 | ETXD1 — Ethernet transmit data 1 |
| Pin 8 | ETXD2 — Ethernet transmit data 2 |
| Pin 9 | ETXD3 — Ethernet transmit data 3 |
| Pin 10 | VSS — Ground |
| Pin 11 | ETXER — Ethernet transmit error |
| Pin 12 | ERXCLK — Ethernet receive clock |
| Pin 13 | ERXDV — Ethernet receive data valid |
| Pin 14 | ERXD0 — Ethernet receive data 0 |
| Pin 15 | ERXD1 — Ethernet receive data 1 |
| Pin 16 | VSS — Ground |
| Pin 17 | ERXD2 — Ethernet receive data 2 |
| Pin 18 | ERXD3 — Ethernet receive data 3 |
| Pin 19 | ERXER — Ethernet receive error |
| Pin 20 | ECOL — Ethernet collision detect |
| Pin 21 | VDD — I/O supply voltage |
| Pin 22 | EMDC — Ethernet management data clock |
| Pin 23 | EMDIO — Ethernet management data I/O |
| Pin 24 | USB_DP — USB data plus |
| Pin 25 | USB_DM — USB data minus |
| Pin 26 | USB_VBUS — USB VBUS detect |
| Pin 27 | USB_VDDA — USB analog supply |
| Pin 28 | VSS — Ground |
| Pin 29 | CANTX — CAN transmit |
| Pin 30 | CANRX — CAN receive |
| Pin 31 | TDI — JTAG test data in |
| Pin 32 | TDO — JTAG test data out |
| Pin 33 | TCK — JTAG test clock |
| Pin 34 | TMS — JTAG test mode select |
| Pin 35 | TRST — JTAG test reset |
| Pin 36 | RSTOUT — Reset output |
| Pin 37 | RESET — Device reset input |
| Pin 38 | VDD — Core supply |
| Pin 39 | VSS — Ground |
| Pin 40 | XTAL — Crystal oscillator input |
| Pin 41 | EXTAL — External clock input |
| Pin 42 | VSS — Ground |
| Pin 43 | CLKOUT — System clock output |
| Pin 44 | VDD — I/O supply |
| Pin 45 | GPT0 — General purpose timer 0 |
| Pin 46 | GPT1 — General purpose timer 1 |
| Pin 47 | GPT2 — General purpose timer 2 |
| Pin 48 | GPT3 — General purpose timer 3 |
| Pin 49 | PWM0 — Pulse width modulator 0 |
| Pin 50 | PWM1 — Pulse width modulator 1 |
| Pin 51 | PWM2 — Pulse width modulator 2 |
| Pin 52 | PWM3 — Pulse width modulator 3 |
| Pin 53 | VDD — Supply |
| Pin 54 | VSS — Ground |
| Pin 55 | UART0_TX — UART0 transmit |
| Pin 56 | UART0_RX — UART0 receive |
| Pin 57 | UART0_RTS — UART0 request to send |
| Pin 58 | UART0_CTS — UART0 clear to send |
| Pin 59 | UART1_TX — UART1 transmit |
| Pin 60 | UART1_RX — UART1 receive |
| Pin 61 | UART2_TX — UART2 transmit |
| Pin 62 | UART2_RX — UART2 receive |
| Pin 63 | VDD — Supply |
| Pin 64 | VSS — Ground |
| Pin 65 | I2C0_SCL — I2C0 clock |
| Pin 66 | I2C0_SDA — I2C0 data |
| Pin 67 | I2C1_SCL — I2C1 clock |
| Pin 68 | I2C1_SDA — I2C1 data |
| Pin 69 | GPIO_A0 — General purpose I/O A0 |
| Pin 70 | GPIO_A1 — General purpose I/O A1 |
| Pin 71 | GPIO_A2 — General purpose I/O A2 |
| Pin 72 | GPIO_A3 — General purpose I/O A3 |
| Pin 73 | VDD — Supply |
| Pin 74 | VSS — Ground |
| Pin 75 | GPIO_B0 — General purpose I/O B0 |
| Pin 76 | GPIO_B1 — General purpose I/O B1 |
| Pin 77 | GPIO_B2 — General purpose I/O B2 |
| Pin 78 | GPIO_B3 — General purpose I/O B3 |
| Pin 79 | GPIO_C0 — General purpose I/O C0 |
| Pin 80 | GPIO_C1 — General purpose I/O C1 |
| Pin 81 | GPIO_C2 — General purpose I/O C2 |
| Pin 82 | GPIO_C3 — General purpose I/O C3 |
| Pin 83 | GPIO_D0 — General purpose I/O D0 |
| Pin 84 | GPIO_D1 — General purpose I/O D1 |
| Pin 85 | VDD — Supply |
| Pin 86 | VSS — Ground |
| Pin 87 | GPIO_D2 — General purpose I/O D2 |
| Pin 88 | GPIO_D3 — General purpose I/O D3 |
| Pin 89 | GPIO_E0 — General purpose I/O E0 |
| Pin 90 | GPIO_E1 — General purpose I/O E1 |
| Pin 91 | GPIO_E2 — General purpose I/O E2 |
| Pin 92 | GPIO_E3 — General purpose I/O E3 |
| Pin 93 | AN0 — Analog input 0 |
| Pin 94 | AN1 — Analog input 1 |
| Pin 95 | AN2 — Analog input 2 |
| Pin 96 | AN3 — Analog input 3 |
| Pin 97 | VDDA — Analog supply voltage |
| Pin 98 | VSSA — Analog ground |
| Pin 99 | AN4 — Analog input 4 |
| Pin 100 | AN5 — Analog input 5 |
| Pin 101 | AN6 — Analog input 6 |
| Pin 102 | AN7 — Analog input 7 |
| Pin 103 | VRH — ADC high reference |
| Pin 104 | VRL — ADC low reference |
| Pin 105 | VDD — Supply |
| Pin 106 | VSS — Ground |
| Pin 107 | A0 — External address bus 0 |
| Pin 108 | A1 — External address bus 1 |
| Pin 109 | A2 — External address bus 2 |
| Pin 110 | A3 — External address bus 3 |
| Pin 111 | A4 — External address bus 4 |
| Pin 112 | A5 — External address bus 5 |
| Pin 113 | A6 — External address bus 6 |
| Pin 114 | A7 — External address bus 7 |
| Pin 115 | VDD — Supply |
| Pin 116 | VSS — Ground |
| Pin 117 | D0 — External data bus 0 |
| Pin 118 | D1 — External data bus 1 |
| Pin 119 | D2 — External data bus 2 |
| Pin 120 | D3 — External data bus 3 |
| Pin 121 | D4 — External data bus 4 |
| Pin 122 | D5 — External data bus 5 |
| Pin 123 | D6 — External data bus 6 |
| Pin 124 | D7 — External data bus 7 |
| Pin 125 | D8 — External data bus 8 |
| Pin 126 | D9 — External data bus 9 |
| Pin 127 | D10 — External data bus 10 |
| Pin 128 | D11 — External data bus 11 |
| Pin 129 | D12 — External data bus 12 |
| Pin 130 | D13 — External data bus 13 |
| Pin 131 | D14 — External data bus 14 |
| Pin 132 | D15 — External data bus 15 |
| Pin 133 | CS0 — Chip select 0 |
| Pin 134 | CS1 — Chip select 1 |
| Pin 135 | CS2 — Chip select 2 |
| Pin 136 | CS3 — Chip select 3 |
| Pin 137 | RD — External bus read strobe |
| Pin 138 | WR — External bus write strobe |
| Pin 139 | TA — Transfer acknowledge |
| Pin 140 | TIP — Transfer in progress |
| Pin 141 | VDD — Supply |
| Pin 142 | VSS — Ground |
| Pin 143 | BKPT — Background debug mode request |
| Pin 144 | DSCLK — Development serial clock (BDM) |
Typical Applications
MCF52258CAG66 is suitable for 7 applications: Industrial Ethernet Gateway, USB-to-CAN Protocol Bridge, Smart Metering Data Concentrator, Building Automation Controller, Serial-to-Ethernet Server Module, Industrial Motor Control Node, Point-of-Sale Terminal Controller.
Industrial Ethernet Gateway
The MCF52258CAG66's integrated 10/100 Ethernet MAC with MII/RMII support makes it ideal for industrial Ethernet gateways that bridge Modbus TCP, EtherNet/IP, or PROFINET to fieldbus networks. At 66 MHz the ColdFire V2 core runs a full TCP/IP stack plus protocol translation with cycle budget to spare. The 64KB SRAM accommodates socket buffers and the 512KB Flash holds TLS credential stores. Hardware AES acceleration offloads handshake computation. Pairing with a LAN8720A RMII PHY and external isolation transformer yields a complete industrial gateway node.
Recommended
USB-to-CAN Protocol Bridge
Bridging USB 2.0 Full-Speed OTG to CAN 2.0B is a canonical use case for the MCF52258CAG66. The on-chip USB OTG controller plus dedicated CAN module eliminate external bridges. The 66 MHz ColdFire V2 core sustains 1 Mbps CAN throughput while serving the USB CDC stack. With 512KB Flash there is room for vendor-specific frame translation tables and diagnostic handlers. Galvanic isolation on the CAN side uses an external transceiver such as the TJA1050 or ISO1050.
Recommended
Smart Metering Data Concentrator
Smart metering concentrators aggregate data from multiple electricity, water, or gas meters over M-Bus, RS-485, or wireless links. The MCF52258CAG66 fits as the central controller with its three UARTs, dual I2C controllers, and Ethernet for backhaul. The 12-bit ADC handles analog sensor calibration, and the on-chip crypto block secures AMI communications. NXP-provided MQX RTOS support enables deterministic multi-tasking for parallel meter polling and uplink aggregation.
Recommended
Building Automation Controller
Building automation controllers consolidate HVAC, lighting, access control, and elevator subsystems over BACnet, LonWorks, or KNX. The MCF52258CAG66's blend of Ethernet, CAN, UARTs, and timers/PWM aligns with multi-protocol demand. The ColdFire V2 core executes BACnet/IP and translation logic at 66 MHz, while 64KB SRAM supports buffering of multiple concurrent subsystem flows. Hardware AES protects credential and audit-log traffic.
Recommended
Serial-to-Ethernet Server Module
Serial-to-Ethernet server modules transparently bridge RS-232/RS-485 devices to Ethernet networks, a classic use case for the MCF52258CAG66. With three UARTs and an integrated Ethernet MAC, a single chip implements the entire server path. At 66 MHz a ColdFire V2 core can sustain multiple concurrent TCP/UDP sockets while queuing serial traffic. The 144-LQFP package provides generous GPIO for flow-control and status LEDs.
Recommended
Industrial Motor Control Node
Distributed motor control nodes use the MCF52258CAG66 for CAN-linked command arbitration while delegating actual PWM to gate drivers. The four 32-bit timer/PWM units handle quadrature decoding and base-rate PWM, while the CAN 2.0B interface delivers deterministic command-rate messaging. The 12-bit ADC samples current and voltage feedback for closed-loop regulation. Hardware AES secures parameter updates from the controller.
Recommended
Point-of-Sale Terminal Controller
POS terminal controllers require secure transaction processing, multi-peripheral coordination, and reliable Ethernet backhaul. The MCF52258CAG66 integrates all three: hardware AES for PIN encryption, USB OTG for peripheral connectivity, and 10/100 Ethernet for transaction upload. The 512KB Flash accommodates EMV stack and contactless kernel plus custom UI. The 144-LQFP package supports extensive peripheral expansion.
Recommended
Recommended Products Summary
Engineering reference data for MCF52258CAG66 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MCF52256CAG66 | MCF52259CAG66 | MCF52259CAG80 | MCF52258CAG66R | MCF52258AG80 | MCF5212CAE66R |
|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 144-LQFP (20x20 mm) | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same |
| Core / Frequency | ColdFire V2, 66 MHz | ColdFire V2, 66 MHz | ColdFire V2, 66 MHz | ColdFire V2, 80 MHz | ColdFire V2, 66 MHz | ColdFire V2, 80 MHz | ColdFire V2, 66 MHz |
| Ethernet MAC | 10/100 MAC (MII/RMII) | 10/100 MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC |
| USB OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND | NRND |
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Key Differentiators
- Highest Flash density in 66 MHz MCF5225x family (vs MCF52256CAG66)
- Integrated hardware AES/DES/SHA crypto accelerator (vs MCF52211CAF80)
- Triple-protocol connectivity (Ethernet + USB OTG + CAN) (vs MCF5212CAE66R)
Design Notes
The MCF52258CAG66 integrates an on-chip voltage regulator requiring only a single external 3.3V supply; the internal core rail is generated on-die. Decouple the VDD/VSS pairs with a 100 nF ceramic capacitor as close to each pin cluster as possible, with a bulk 10 uF tantalum near the package. USB VDDA (pin 27) needs its own filtered ferrite bead-isolated supply and a 1 uF + 100 nF pair; sharing USB analog with digital VDD introduces jitter and degrades USB signal integrity.
At 66 MHz full activity with peripherals enabled, the ColdFire V2 core draws approximately 80 mA from the 1.5V internal rail, plus I/O current up to 30 mA on 3.3V. Total package dissipation stays well below 1 W in normal operation; the 144-LQFP has ample copper area to stay within 100 C/W theta_JA on standard 4-layer FR4. Ensure the PCB thermal pad layout includes a 0.5 oz copper pour under the package body to spread heat evenly.
Route Ethernet MII/RMII traces as matched-length differential pairs within 50 mil tolerance to the external PHY. Keep USB DP/DM as 90 ohm differential with no splits, and route the crystal traces (XTAL/EXTAL) within 10 mm of the MCU with a ground guard ring. Place the external bus address/data lines on adjacent layers with continuous ground reference to avoid crosstalk on the parallel bus at high speeds.
Do not leave the TRST pin floating; either tie it low through a 10 kohm resistor for normal operation, or drive it from the BDM debugger. Incorrect TRST handling is the most common BDM debug failure mode on ColdFire designs. Also verify the boot mode configuration pins (BMODx) at reset to ensure correct flash boot versus external ROM boot - misconfiguring these latches prevents firmware from starting.
Compliance Information
RoHS compliant per NXP product documentation. NRND (Not Recommended for New Designs) lifecycle status; not AEC-Q100 qualified - intended for industrial/commercial embedded use.
