MCF5206AB33A - ColdFire V2 33MHz MPU, 512B SRAM, 160-QFP | NXP
Référence : MCF5206AB33A ✗ Fin de vieMCF5206AB33A Présentation
A ColdFire microprocessor (MPU) is a 32-bit RISC processor core derived from the Motorola 68000 instruction set architecture (ISA), optimized for low power consumption and high code density in embedded systems. ColdFire V2 is the second-generation variant, balancing performance and silicon efficiency for industrial control, networking edge nodes, and consumer electronics. The MCF5206A sits in the MPU hierarchy between microcontrollers (which integrate Flash/Memory and CPU) and high-end application processors, typically requiring external program memory.
Key features of the MCF5206AB33A include 33 MHz core clock, 8-bit data bus operation, ROMless architecture (requires external program memory), 8 GPIO-style I/O lines, and an external oscillator input. The part supports a single ColdFire V2 core in a 160-pin PQFP package measuring 28x28 mm, designed for surface-mount assembly on standard 1.0 mm or 0.8 mm pitch PCB footprints depending on variant. ColdFire devices are widely supported by NXP/Freescale toolchains including CodeWarrior IDE and the GDB-based ColdFire toolchain.
From an architectural perspective, the ColdFire V2 core uses a variable-length ISA (16/32/48-bit instructions) for high code density, and the MCF5206A integrates a configurable system bus, timers, and interrupt controller. Compared with ARM Cortex-M0 parts in the same MHz range, ColdFire V2 typically delivers higher code density per MHz, beneficial for ROMless designs.
Typical applications include industrial automation controllers, embedded networking equipment, point-of-sale terminals, HVAC controllers, and legacy 68k replacement designs. The wide package and external memory interface also support educational development boards and prototyping platforms requiring ColdFire ISA compatibility.
A primary design consideration when using the MCF5206AB33A is the requirement for external program memory (ROMless), which adds PCB area and BOM cost compared with Flash-equipped microcontrollers. Engineers should also evaluate the part's lifecycle status because ColdFire V2 is a mature product family with limited new design recommendations.
This page synthesizes distributor pricing, same-package ColdFire alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a single, decision-ready reference.
Alternatives de remplacement direct pour MCF5206AB33A — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MCF5206AB33A (même facteur de forme et même empreinte) — différant par Core Architecture, Maximum Clock Frequency, Data Bus Width, Core, Package.
MCF5206AB40A
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MCF5206AB16A
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →MCF5206CAB25A
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →MCF5206ECFT16A
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MCF5206EFT40
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →MCF5206AB33A Valeurs maximales et caractéristiques électriques
| Core | ColdFire V2 |
| Core Architecture | 32-bit RISC (68k-derived ColdFire ISA) |
| Core Count | 1 |
| Fréquence d'horloge maximale | 33 MHz |
| Largeur du bus de données | 8-bit |
| Integrated SRAM | 512 bytes |
| Program Memory Type | ROMless (external memory required) |
| Number of I/O Lines | 8 |
| Oscillator Type | External |
| Boîtier | 160-QFP (28x28 mm), PQFP |
| Type de montage | Surface Mount |
| Packaging | Tray |
| Family | MCF520x ColdFire |
Guide de configuration des broches du MCF5206AB33A 160-qfp (28x28 mm), pqfp
Configuration des broches du MCF5206AB33A (boîtier 160-qfp (28x28 mm), pqfp). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour MCF5206AB33A.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MCF5206AB33A convient pour 6 applications: Industrial Automation Controllers, Point-of-Sale (POS) Terminals, Embedded Networking Edge Nodes, HVAC and Building Automation Controllers, Legacy 68k Replacement Boards, Educational ColdFire Development Platforms.
Industrial Automation Controllers
The MCF5206AB33A fits industrial automation controllers because its 33 MHz ColdFire V2 core delivers enough throughput for PLC-style logic, sensor polling, and serial-bus bridging, while the 160-pin PQFP exposes enough I/O and chip-selects for motor-control, HMI, and analog front-end interfacing. In a typical PLC module, the MCF5206AB33A runs the scan loop, manages Modbus RTU over UART, and arbitrates interrupts from limit-switch and encoder inputs. Unlike ARM Cortex-M0 alternatives, ColdFire V2 offers superior code density at the same MHz, reducing external Flash size and BOM cost. Designers should evaluate the part's NRD lifecycle before committing to a long-life industrial platform.
Recommandé
Point-of-Sale (POS) Terminals
The MCF5206AB33A is well suited to legacy point-of-sale terminal designs that require a 32-bit processor with deterministic interrupt response and abundant bus expansion. The ColdFire V2 core handles payment-protocol state machines, LCD driving, and keyboard scanning without offloading work to a separate MCU. The 8-bit external data bus and chip-selects make it easy to interface magnetic-stripe readers, thermal printers, and 4x20 character LCDs. Compared with newer Cortex-M POS designs, the MCF5206AB33A offers mature, proven firmware support and is available from distributors for repair and maintenance of installed bases.
Recommandé
Embedded Networking Edge Nodes
The MCF5206AB33A is appropriate for embedded networking edge nodes such as protocol converters, serial-to-Ethernet bridges, and remote terminal units. The 33 MHz ColdFire V2 core runs TCP/IP stacks or Modbus gateways comfortably, while the 8-bit data bus and external memory interface allow inexpensive SRAM/Flash expansion for protocol state tables. In a typical serial-Ethernet gateway, the MCF5206AB33A manages the UART, the SPI Ethernet controller, and the TCP/IP stack on a single chip. The wide 160-pin PQFP package also supports adding a parallel PHY or an external MAC without bus-sharing trade-offs.
Recommandé
HVAC and Building Automation Controllers
The MCF5206AB33A suits HVAC and building automation controllers that need a reliable 32-bit processor with generous I/O and bus expansion for thermostat panels, damper actuators, and BACnet/Modbus interfaces. At 33 MHz the ColdFire V2 core schedules control loops, manages keypad input, and drives character LCDs without taxing the bus. The 160-pin PQFP accommodates multiple UARTs for HVAC communication buses plus PWM timers for actuator drive. The mature ColdFire ecosystem also provides reference firmware for BACnet MS/TP, simplifying the certification path for HVAC products.
Recommandé
Legacy 68k Replacement Boards
The MCF5206AB33A is a natural drop-in upgrade for older Motorola 68000 and 68SEC000 boards because the ColdFire V2 ISA is binary-compatible with 68k user-mode instructions and offers 2-3x the performance per MHz. The 160-pin PQFP footprint is similar to legacy 68000 PLCC/QFP packages, so many existing PCBs can accept the MCF5206AB33A with minor rework. In a retrofit application, the ColdFire V2 core extends product life, increases clock headroom, and reduces power consumption compared with original 68000 designs at the same MHz. This makes the MCF5206AB33A a long-tail favorite for industrial medical, military, and aerospace sustainment programs.
Recommandé
Educational ColdFire Development Platforms
The MCF5206AB33A is widely used in university and hobbyist ColdFire development platforms that demonstrate RISC concepts, 68k-derived ISA, and embedded systems programming. The 160-pin PQFP package and BDM debug port are breadboard-friendly, and the ColdFire V2 core is supported by GCC and GDB. Typical lab boards pair the MCF5206AB33A with external SRAM, Flash, character LCD, pushbuttons, and RS-232, giving students a complete system to program from scratch. Compared with modern STM32 Nucleo boards, ColdFire dev kits offer instruction in classic RISC and legacy 68k assembly, valuable for embedded history and aerospace certification programs.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MCF5206AB33A — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MCF5206AB40A | MCF5206AB16A | MCF5206CAB25A | MCF5206ECFT16A | MCF5206EFT40 |
|---|---|---|---|---|---|---|
| Package | 160-QFP (PQFP, 28x28 mm) | 160-QFP (PQFP, 28x28 mm) - same | 160-QFP (PQFP, 28x28 mm) - same | 160-QFP (PQFP, 28x28 mm) - same | 160-QFP (PQFP, 28x28 mm) - same | 160-QFP (PQFP, 28x28 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | ColdFire V2 | ColdFire V2 | ColdFire V2 | ColdFire V2 | ColdFire V2 | ColdFire V2 |
| Maximum Clock Frequency | 33 MHz | 40 MHz | 16 MHz | 25 MHz | 16 MHz | 40 MHz |
| Integrated SRAM | 512 bytes | 512 bytes | 512 bytes | 512 bytes | 512 bytes | 512 bytes |
| Data Bus Width | 8-bit | 8-bit | 8-bit | 8-bit | 8-bit | 8-bit |
| Program Memory Type | ROMless (external memory required) | ROMless | ROMless | ROMless | ROMless | ROMless |
| Sub-Family / Variant | MCF5206A | MCF5206A | MCF5206A | MCF5206C | MCF5206E | MCF5206E |
Principaux différenciateurs
- Mid-range speed grade in ColdFire V2 family (vs MCF5206AB40A)
- Faster than low-speed variants without the cost of the top bin (vs MCF5206AB16A)
- A-sub-family is widely available from distributors (vs MCF5206CAB25A)
Notes de conception
The MCF5206AB33A is ROMless and requires external program memory. A common pitfall is omitting the external Flash/SRAM or sizing it too small - budget at least 256 kB Flash and 32 kB SRAM for typical ColdFire firmware with TCP/IP or Modbus libraries. Verify chip-select wiring, bus timing, and wait-state configuration against the NXP MCF5206E datasheet before committing to layout.
Estimated: at 33 MHz core clock with 3.3 V supply and typical 80 mA active current, the MCF5206AB33A dissipates approximately 0.26 W (Estimated: P = V x I = 3.3 x 0.08). This is well within the 160-pin PQFP thermal envelope (theta_JA approximately 45 C/W for PQFP-160), so no heatsink is required. For industrial -40C to +85C ambient operation, verify junction temperature rise remains under 60 C with the production PCB layout.
Route the 8-bit data bus and address bus with matched impedance and matched length to within +/- 5 mm on the 160-pin PQFP. Place decoupling capacitors (100 nF ceramic plus 10 uF bulk) as close as possible to every VDD/VSS pair. Keep BDM (Background Debug Mode) pins accessible on test points for production programming and field firmware updates. Reference the NXP MCF5206E application notes for recommended PCB stack-up and decoupling topology.
Informations de conformité
RoHS, REACH, lead-free, halogen-free, and conflict-mineral status not explicitly stated in verified distributor data. The 'A' suffix in the part number conventionally denotes a lead-free, RoHS-compliant variant in NXP ColdFire naming, but this should be confirmed against the NXP material declaration before use.
