MC68020RC33E - 33MHz 32-bit M68000 MPU | NXP | 114-PGA
Référence : MC68020RC33E ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $89.5 | $89,50 |
| 10 | $78.2 | $782,00 |
| 100 | $67.8 | $6 780,00 |
| 500 | $59.4 | $29 700,00 |
| 1 000 | $52.1 | $52 100,00 |
MC68020RC33E Présentation
What is a 32-bit CISC microprocessor? In the broader product taxonomy, the MC68020 belongs to the class of microprocessors (MPU) - a category that includes general-purpose CPUs, microcontrollers, and digital signal processors. Within integrated circuits, microprocessors sit alongside logic ICs, memory ICs, and interface ICs, and historically preceded the rise of RISC and x86 architectures. The 68020 was notable as the first full 32-bit implementation of the M68000 family, using VLSI HCMOS technology and providing 32-bit arithmetic and addressing well before 32-bit computing became mainstream.
Key features include a 33.33 MHz maximum clock speed, 5V single-supply operation, an integrated memory management unit (MMU) with a 256-byte instruction cache, and dynamic bus sizing that supports 8-, 16-, and 32-bit peripherals on the same bus. The 114-BPGA package provides a robust through-hole pin-grid-array footprint suited to legacy industrial, military, and embedded applications.
The 68020 core introduces an instruction cache, coprocessor interface (for the 68881/68882 FPU and PMMU), and improved exception handling relative to the earlier 68000/68010. From a performance standpoint, it executes roughly 2-3 MIPS at 33 MHz and addresses up to 4 GB of linear memory through the MMU.
Typical applications include legacy VMEbus industrial controllers, aerospace/avionics subsystems, military embedded systems, telecommunications infrastructure (early-era switches/routers), and Sun/Apollo/HP workstation-class motherboards where the 68020 was the host CPU. The through-hole PGA package remains widely deployed on fielded hardware requiring long-term availability.
Design consideration: the 114-PGA requires a socketed PCB layout with plated through-holes on a 2.54 mm pitch grid. When evaluating longevity, source the part only from authorized distributors or franchised stockists, as the 68020 family is firmly in the obsolete/legacy category. Plan for last-time-buy inventory for new designs.
This page synthesizes distributor pricing, drop-in alternative guidance, and practical design notes beyond the manufacturer datasheet to assist engineers maintaining installed 68020-based systems.
Alternatives de remplacement direct pour MC68020RC33E — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC68020RC33
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC68020RC40E
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC68020RC25E
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC68020RC20E
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC68020FE16E
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC68020RC33E Valeurs maximales et caractéristiques électriques
| Processor Type | M680x0 32-Bit CISC Microprocessor |
| Core | 68020 (single core) |
| Bus Width | 32-bit |
| Clock Speed (Max) | 33.33 MHz |
| Tension d'alimentation | 5 V |
| Instruction Set | M68000 family, full 32-bit superset |
| Address Bus | 32-bit (4 GB linear address space) |
| Data Bus | 32-bit (dynamic bus sizing: 8/16/32-bit) |
| Instruction Cache | 256 bytes |
| MMU | External (68851 PMMU supported via coprocessor interface) |
| Coprocessor Interface | Yes (68881/68882 FPU, 68851 PMMU) |
| Boîtier | 114-pin CPGA (R-CPGA-114, 34.55 x 34.55 mm) |
| Type de montage | Through-Hole (Pin Grid Array) |
| Packaging | Tray |
| Statut RoHS | Compliant |
| Lead-Free Status | Lead Free |
| Process Technology | HCMOS VLSI |
Guide de configuration des broches du MC68020RC33E 114-pin cpga (r-cpga-114, 34.55 x 34.55 mm)
Configuration des broches du MC68020RC33E (boîtier 114-pin cpga (r-cpga-114, 34.55 x 34.55 mm)). 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 MC68020RC33E.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MC68020RC33E convient pour 6 applications: Legacy VMEbus Industrial Controllers, Aerospace and Avionics Embedded Platforms, Military and Defense Embedded Systems, Early Telecommunications Infrastructure, Sun/Apollo/HP Workstation-Class Motherboards, Industrial Process Control and Test Equipment.
Legacy VMEbus Industrial Controllers
The MC68020RC33E's 33.33 MHz 32-bit processing power, dynamic bus sizing, and coprocessor interface make it well suited to legacy VMEbus-based industrial controllers still deployed in factory automation and process control. With 32-bit addressing and roughly 2-3 MIPS throughput, the 68020 handles real-time control loops, sensor aggregation, and HMI logic that ran on VME racks from the late 1980s through the 1990s. The 114-pin CPGA socketed footprint allows easy field replacement on existing VME boards. For new designs, however, modern 32-bit microcontrollers or COM Express modules are recommended.
Recommandé
Aerospace and Avionics Embedded Platforms
The MC68020RC33E was widely used in aerospace and avionics subsystems where its 32-bit CISC architecture, deterministic interrupt handling, and 5 V single-supply operation met DO-178-style embedded requirements of the 1990s. The through-hole CPGA package provides mechanical robustness against vibration - a key requirement for flight hardware. Many flight management computers, navigation units, and engine control subsystems still in service rely on field-replaceable 68020 CPUs. Designers maintaining these platforms should plan last-time-buy inventory and verify alternate-source franchises such as Rochester Electronics.
Recommandé
Military and Defense Embedded Systems
Military embedded systems built on the M68000 architecture - including radar signal processors, tactical communications equipment, and electronic countermeasures - frequently deployed the MC68020RC33E for its mature toolchain, real-time determinism, and proven long-term reliability. The 32-bit address bus supports large memory maps required by defense signal-processing applications, and the coprocessor interface enabled 68882 floating-point math for radar DSP-style workloads. The 114-PGA package survives harsh MIL-STD-810 environments. Legacy defense programs continue to source this part through franchised distributors.
Recommandé
Early Telecommunications Infrastructure
Early telecommunications switching equipment - including PBX systems, central-office line cards, and base-station controllers of the early 1990s - used the MC68020RC33E as the main control processor. Its 32-bit address space mapped large routing tables, and dynamic bus sizing allowed it to interface efficiently with both 8-bit peripheral chips and 32-bit memory. The 33 MHz speed grade provided ample headroom for protocol-stack processing. While these platforms have largely been replaced by ASICs and modern SoCs, some legacy telecom installations still require 68020 spares for maintenance.
Recommandé
Sun/Apollo/HP Workstation-Class Motherboards
Workstations from Sun Microsystems (Sun-3 series), Apollo NCE, and HP's early 9000/300 family used the MC68020RC33E paired with a 68881/68882 FPU as the main CPU. The 33 MHz speed grade powered the highest-end configurations, delivering roughly 1.5-2x the throughput of the original 16 MHz Sun-3/50. The 114-pin CPGA socketed onto CPU daughterboards for easy serviceability. Vintage computing enthusiasts and museum restoration projects regularly seek working MC68020RC33E CPUs to repair these historic workstations.
Recommandé
Industrial Process Control and Test Equipment
Process-control PLCs, programmable automation controllers, and bench-top test instruments of the 1990s used the MC68020RC33E for its combination of 32-bit compute power, deterministic bus arbitration, and coprocessor extensibility. The 32-bit data path handled ADC/DAC stream processing, and the 114-PGA footprint simplified board-level rework on long-life industrial products. For modern replacements, consider the MAX197 ADC front-end and 32-bit ARM Cortex-M microcontrollers for new designs.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC68020RC33E — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MC68020RC33 | MC68020RC40E | MC68020RC25E | MC68020RC20E | MC68020FE16E |
|---|---|---|---|---|---|---|
| Package | 114-pin CPGA (34.55x34.55 mm) | 114-pin CPGA - same | 114-pin CPGA - same | 114-pin CPGA - same | 114-pin CPGA - same | 114-pin CPGA - same |
| Brand | NXP Semiconductors | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same |
| Clock Speed | 33.33 MHz | 33.33 MHz | 40 MHz (+20%) | 25 MHz (-25%) | 20 MHz (-40%) | 16 MHz (-52%) |
| Core | 68020 | 68020 | 68020 | 68020 | 68020 | 68020 |
| Bus Width | 32-bit | 32-bit | 32-bit | 32-bit | 32-bit | 32-bit |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Lead-Free / RoHS | Yes (E suffix) | No (leaded) | Yes (E suffix) | Yes (E suffix) | Yes (E suffix) | Yes (E suffix) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Principaux différenciateurs
- Industry-standard 68020 core with broad M68000 toolchain support (vs MC68030RC33C)
- Pin-compatibility across all 68020 speed grades (vs MC68020RC40E / MC68020RC20E)
- RoHS-compliant lead-free option (E suffix) (vs MC68020RC33 (non-E))
Notes de conception
The 114-pin CPGA footprint requires a socketed PCB layout with 2.54 mm pitch plated through-holes across a 34.55 x 34.55 mm land pattern. Use a machined-pin PGA socket (e.g., 3M Textool or equivalent) for development and field-replaceable units; solder the CPGA directly only for production volumes where socket cost is prohibitive. Provide thermal relief pads under the ceramic package to manage the 5 V / ~1.5 W typical dissipation.
Estimated: at 33.33 MHz with a typical 5 V supply and 1.5 W power dissipation (per the Motorola 68020 datasheet family), the CPGA package will operate without a heatsink in benign environments. Add a small clip-on heatsink with thermal interface material if the application operates above 50 C ambient or inside a sealed enclosure. Always confirm with the original Motorola MC68020 user's manual thermal curves.
Avoid mixing the MC68020RC33E with the pin-incompatible MC68030RC33C as a 'drop-in' substitute. While both share the 114-PGA family and M68000 lineage, the 68030 has a different pinout for MMU/cache control signals and a different bus protocol. Cross-substitution will result in bus errors or permanent damage. Verify the exact pinout against the official Motorola user's manual before any board rework.
The MC68020 family reached end-of-life in the late 1990s. For new designs, plan a last-time-buy window with Rochester Electronics (a franchised long-term-support supplier for legacy Motorola/Freescale silicon). Stock a minimum of 2-3x annual usage as lifetime buy. For new designs, consider modern 32-bit microcontrollers (e.g., NXP Kinetis, STM32, or Microchip SAME54) with significantly lower power, smaller packages, and active roadmaps.
Informations de conformité
RoHS compliant per DigChip distributor datasheet (E suffix). Lead Free status confirmed. REACH, halogen-free, and conflict-minerals declarations not found in distributor records - mark unknown.
