NXP Semiconductors MCF53011CQT240

Overview

MCF53011CQT240 from NXP Semiconductors (formerly Freescale) is a 240 MHz ColdFire® v3 microprocessor with integrated EMAC, 128 KB SRAM, eSDHC, dual 10/100 Ethernet MACs, USB 2.0 OTG/host, voice-band audio codec, and cryptography acceleration unit (CAU). It targets VoIP gateways, industrial communication controllers, and secure embedded networking devices requiring real-time processing, multi-interface connectivity, and low-power standby operation.

For engineers reviewing the MCF53011CQT240 datasheet, MCF53011CQT240 pinout, MCF53011CQT240 application, or MCF53011CQT240 equivalent, key selection criteria include LQFP-208 package compatibility, 240 MHz core clock with ≤80 MHz peripheral bus, CAU-supported AES/SHA-1 acceleration, dual-FEC timing compliance, and eSDHC support for SDIO/CE-ATA/MMC cards in resource-constrained edge nodes.

Technical Context

The MCF53011CQT240 implements a ColdFire v3 core with EMAC and executes up to 211 Dhrystone 2.1 MIPS at 240 MHz. Its crossbar switch enables concurrent access to peripherals and 128 KB SRAM by multiple bus masters, while the eSDHC controller supports CE-ATA, SDIO, MMC, and SD Combo cards with programmable data width and voltage switching.

It integrates two independent Fast Ethernet controllers compliant with IEEE 802.3, each supporting RMII/MII interfaces and full-duplex 10/100 Mbps operation. The on-chip CAU accelerates DES, 3DES, AES, MD5, and SHA-1 algorithms in hardware, and the RTC module maintains timekeeping during VSTBY_SRAM/VSTBY_RTC standby power modes.

Key Specifications

Pinout & Package

Package: 208-pin LQFP (28 mm × 28 mm), 0.5 mm pitch, RoHS-compliant. Thermal pad exposed on bottom for enhanced heat dissipation in fanless industrial enclosures.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microprocessor applications.

Compared with i.MX287 and MPC8313E, the MCF53011CQT240 uniquely combines voice-band audio, CAU, and dual-FEC in a single LQFP-208 package - reducing system-level component count and PCB area for cost-sensitive, analog-rich edge nodes where ARM licensing or PCI expansion is unnecessary.

Availability

MCF53011CQT240 is available at Aetrix Electronics and suitable for VoIP gateways, industrial Ethernet routers, and secure remote terminal units requiring stable component supply, long-term lifecycle support, and qualified automotive-grade temperature range (–40°C to +85°C).

Supply support for MCF53011CQT240 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 markets.

The MCF53011CQT240 belongs to the ColdFire® v3 microprocessor family designed for cost-effective, low-power embedded networking and voice-enabled edge devices requiring integrated security, real-time responsiveness, and analog interface capability.

FAQ

What is the maximum operating frequency of the MCF53011CQT240?

The MCF53011CQT240 operates at a maximum core frequency of 240 MHz, with a corresponding peripheral bus clock of up to 80 MHz (core clock ÷ 3). This frequency is validated across the full industrial temperature range (–40°C to +85°C) and supports sustained Dhrystone 2.1 performance of 211 MIPS. The PLL configuration and power supply sequencing must follow Section 3.1 and 3.3 of the MCF5301x datasheet to maintain stability at this speed.

Does the MCF53011CQT240 support USB device and host modes simultaneously?

Yes, the MCF53011CQT240 integrates both a USB 2.0 On-The-Go (OTG) controller and a separate USB 2.0 host controller. The OTG controller supports device/peripheral mode with session request protocol (SRP) and host negotiation protocol (HNP), while the dedicated host controller provides full-speed host functionality for peripherals like cellular modems or HID devices. Both controllers operate independently and can be used concurrently in multi-role applications such as field gateways.

What memory interfaces does the MCF53011CQT240 support?

The MCF53011CQT240 supports a 16- or 32-bit SDR SDRAM interface and a 16-bit DDR/mobile-DDR SDRAM controller. It also includes a 32-bit FlexBus external interface with programmable wait states, chip selects, and burst capabilities for connecting NOR/NAND flash, SRAM, or FPGA logic. Internal memory consists of 128 KB SRAM with standby power support and 16 KB unified instruction/data cache - eliminating need for external cache SRAM in most real-time applications.

How does the cryptography acceleration unit (CAU) in the MCF53011CQT240 improve security performance?

The CAU in the MCF53011CQT240 accelerates DES, 3DES, AES (128/192/256-bit), MD5, and SHA-1 algorithms in hardware, achieving AES-128 throughput exceeding 20 MB/s. This offloads computationally intensive operations from the ColdFire v3 core, reducing CPU utilization by up to 70% during TLS handshake or IPsec packet processing. The CAU operates independently via DMA and supports key wrapping for secure key storage - enabling FIPS 140-2 Level 1–compliant implementations in the MCF53011CQT240.

What is the function of the crossbar switch (XBS) in the MCF53011CQT240 architecture?

The crossbar switch (XBS) in the MCF53011CQT240 enables concurrent, non-blocking access to internal SRAM and peripherals by multiple bus masters - including the ColdFire core, eDMA controller, USB OTG, and dual FEC modules. Unlike traditional shared buses, XBS eliminates arbitration delays and priority conflicts, allowing simultaneous Ethernet packet reception, audio buffer DMA, and crypto engine access without pipeline stalls. This is essential for deterministic real-time behavior in VoIP and industrial control applications.