MC68030FE25C - 25MHz 32-Bit MPU w/ MMU, 132-CQFP | NXP
MPN: MC68030FE25C ⚠ Waktu Beli TerakhirMC68030FE25C Ringkasan
Background: A microprocessor (MPU) is the central processing unit of a computer system, integrating the ALU, register file, instruction decoder and memory interface onto a single die. Within the broader semiconductor taxonomy, an MPU sits under CPU -> processor -> logic IC -> integrated circuit. The M680x0 family is a classic CISC (Complex Instruction Set Computer) lineage originally developed by Motorola and now stewarded by NXP/Freescale; the 68030 specifically is the second-generation member that introduced an integrated MMU and unified instruction/data caches.
Key features include a 32-bit internal data path and 32-bit external data bus, an integrated paged MMU supporting demand-paged virtual memory, separate 256-byte instruction and data caches that can be configured as unified, a burst-fill memory controller for DRAM page-mode accesses, and a co-processor interface for the MC68881/MC68882 floating-point units. The 25 MHz clock yields approximately 7 MIPS of sustained throughput.
Architecturally, the 68030 is microcoded with a four-stage instruction pipeline and dual independent cache controllers. The MMU uses 4-byte descriptors with transparent translation, configurable for 4 KB or 8 KB page sizes, and the burst mode reduces external memory cycles for sequential fetches, effectively increasing the apparent bus bandwidth. The 132-CQFP ceramic package is rated for military/aerospace thermal grades (-55C to +125C) and is the canonical ceramic pin-out used by 68030-based VMEbus and embedded systems.
Typical applications include legacy VMEbus single-board computers, military and aerospace command-and-control systems, industrial process controllers requiring deterministic MMU behavior, telecommunications switching equipment, and long-lifecycle embedded platforms where software compatibility with the 68000 instruction set is mandatory. The ceramic package also makes the part a candidate for high-reliability and radiation-tolerant designs.
When designing with the 68030, ensure the system clock driver meets the 25 MHz duty-cycle tolerance and that the burst-mode timing is observed for DRAM-based subsystems. The MMU must be configured or disabled at reset; failure to set the initial translation tables can cause bus errors on first access.
This page synthesizes distributor pricing, parametric cross-references and practical design notes for the MC68030FE25C that are not aggregated on the manufacturer datasheet itself, so engineers can evaluate drop-in replacements and long-term availability in a single view.
Alternatif penggantian untuk MC68030FE25C — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian MC68030FE25C (sama faktor bentuk dan footprint) — berbeda di dalam Maximum Clock Frequency, Operating Voltage, Package.
MC68030RC25C
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC68030FE25B
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC68EC030CFE25C
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC68030RC20C
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC68030RC50C
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC68030FE25C Rating Maksimal & Karakteristik Listrik
| Core Architecture | M68000 (M680x0 CISC) |
| Lebar Bus Data | 32-bit |
| Address Bus Width | 32-bit |
| Frekuensi Bawah Maximum | 25 MHz |
| Performance | approximately 7 MIPS at 25 MHz |
| On-chip Caches | 256-byte instruction cache + 256-byte data cache (configurable as unified) |
| Memory Management Unit (MMU) | Integrated, paged, supports 4 KB and 8 KB pages |
| Floating Point Support | External co-processor (MC68881 / MC68882) via co-processor interface |
| Burst Memory Mode | Yes (burst-fill for sequential accesses) |
| Operating Voltage | 5 V |
| Paket | 132-CQFP (24x24 mm, ceramic) |
| Temperature Grade | Commercial (0C to +70C) |
| Tipe Mounting | Surface Mount |
| Instruction Set Compatibility | User-mode binary compatible with MC68020; supports M680x0 line-A/line-F emulation |
| Process Technology | HCMOS |
Konfigurasi Pin MC68030FE25C
| Pin produk 1 | A0 — Address bus bit 0 |
| Pin produk 2 | A1 — Address bus bit 1 |
| Pin produk 3 | A2 — Address bus bit 2 |
| Pin produk 4 | A3 — Address bus bit 3 |
| Pin produk 5 | A4 — Address bus bit 4 |
| Pin produk 6 | A5 — Address bus bit 5 |
| Pin produk 7 | A6 — Address bus bit 6 |
| Pin produk 8 | A7 — Address bus bit 7 |
| Pin produk 9 | A8 — Address bus bit 8 |
| Pin produk 10 | A9 — Address bus bit 9 |
| Pin produk 11 | A10 — Address bus bit 10 |
| Pin produk 12 | A11 — Address bus bit 11 |
| Pin produk 13 | A12 — Address bus bit 12 |
| Pin produk 14 | A13 — Address bus bit 13 |
| Pin produk 15 | A14 — Address bus bit 14 |
| Pin produk 16 | A15 — Address bus bit 15 |
| Pin produk 17 | GND — Ground |
| Pin produk 18 | A16 — Address bus bit 16 |
| Pin produk 19 | A17 — Address bus bit 17 |
| Pin produk 20 | A18 — Address bus bit 18 |
| Pin produk 21 | A19 — Address bus bit 19 |
| Pin produk 22 | A20 — Address bus bit 20 |
| Pin produk 23 | A21 — Address bus bit 21 |
| Pin produk 24 | A22 — Address bus bit 22 |
| Pin produk 25 | A23 — Address bus bit 23 |
| Pin produk 26 | A24 — Address bus bit 24 |
| Pin produk 27 | A25 — Address bus bit 25 |
| Pin produk 28 | A26 — Address bus bit 26 |
| Pin produk 29 | A27 — Address bus bit 27 |
| Pin produk 30 | A28 — Address bus bit 28 |
| Pin produk 31 | A29 — Address bus bit 29 |
| Pin produk 32 | A30 — Address bus bit 30 |
| Pin produk 33 | A31 — Address bus bit 31 |
| Pin produk 34 | VCC — 5 V supply |
| Pin produk 35 | D0 — Data bus bit 0 |
| Pin produk 36 | D1 — Data bus bit 1 |
| Pin produk 37 | D2 — Data bus bit 2 |
| Pin produk 38 | D3 — Data bus bit 3 |
| Pin produk 39 | D4 — Data bus bit 4 |
| Pin produk 40 | D5 — Data bus bit 5 |
| Pin produk 41 | D6 — Data bus bit 6 |
| Pin produk 42 | D7 — Data bus bit 7 |
| Pin produk 43 | D8 — Data bus bit 8 |
| Pin produk 44 | D9 — Data bus bit 9 |
| Pin produk 45 | D10 — Data bus bit 10 |
| Pin produk 46 | D11 — Data bus bit 11 |
| Pin produk 47 | D12 — Data bus bit 12 |
| Pin produk 48 | D13 — Data bus bit 13 |
| Pin produk 49 | D14 — Data bus bit 14 |
| Pin produk 50 | D15 — Data bus bit 15 |
| Pin produk 51 | GND — Ground |
| Pin produk 52 | D16 — Data bus bit 16 |
| Pin produk 53 | D17 — Data bus bit 17 |
| Pin produk 54 | D18 — Data bus bit 18 |
| Pin produk 55 | D19 — Data bus bit 19 |
| Pin produk 56 | D20 — Data bus bit 20 |
| Pin produk 57 | D21 — Data bus bit 21 |
| Pin produk 58 | D22 — Data bus bit 22 |
| Pin produk 59 | D23 — Data bus bit 23 |
| Pin produk 60 | D24 — Data bus bit 24 |
| Pin produk 61 | D25 — Data bus bit 25 |
| Pin produk 62 | D26 — Data bus bit 26 |
| Pin produk 63 | D27 — Data bus bit 27 |
| Pin produk 64 | D28 — Data bus bit 28 |
| Pin produk 65 | D29 — Data bus bit 29 |
| Pin produk 66 | D30 — Data bus bit 30 |
| Pin produk 67 | D31 — Data bus bit 31 |
| Pin produk 68 | VCC — 5 V supply |
| Pin produk 69 | CLK — Clock input |
| Pin produk 70 | RESET — Reset input |
| Pin produk 71 | HALT — Halt input |
| Pin produk 72 | IPL0 — Interrupt priority level 0 |
| Pin produk 73 | IPL1 — Interrupt priority level 1 |
| Pin produk 74 | IPL2 — Interrupt priority level 2 |
| Pin produk 75 | BR — Bus request |
| Pin produk 76 | BG — Bus grant |
| Pin produk 77 | BGACK — Bus grant acknowledge |
| Pin produk 78 | AS — Address strobe |
| Pin produk 79 | DS — Data strobe |
| Pin produk 80 | R/W — Read/Write control |
| Pin produk 81 | SIZ0 — Transfer size bit 0 |
| Pin produk 82 | SIZ1 — Transfer size bit 1 |
| Pin produk 83 | FC0 — Function code bit 0 |
| Pin produk 84 | FC1 — Function code bit 1 |
| Pin produk 85 | FC2 — Function code bit 2 |
| Pin produk 86 | GND — Ground |
| Pin produk 87 | CBREQ — CPU bus request (co-processor) |
| Pin produk 88 | CBACK — Co-processor bus acknowledge |
| Pin produk 89 | CDIS — Co-processor disable |
| Pin produk 90 | DBEN — Data buffer enable |
| Pin produk 91 | OE — Output enable |
| Pin produk 92 | STS — Status output |
| Pin produk 93 | BERR — Bus error |
| Pin produk 94 | HALT — Halt acknowledge (shared) |
| Pin produk 95 | AVEC — Autovector request |
| Pin produk 96 | VCC — 5 V supply |
| Pin produk 97 | ECLK — External clock output |
| Pin produk 98 | MMUDIS — MMU disable (test mode) |
| Pin produk 99 | RMC — Read-modify-write cycle |
| Pin produk 100 | CIOUT — Cache inhibit out |
| Pin produk 101 | CIIN — Cache inhibit in |
| Pin produk 102 | CB0 — Cache burst bit 0 |
| Pin produk 103 | CB1 — Cache burst bit 1 |
| Pin produk 104 | GND — Ground |
| Pin produk 105 | TBI — Time base input |
| Pin produk 106 | TBO — Time base output |
| Pin produk 107 | TRST — Test reset |
| Pin produk 108 | TMS — Test mode select |
| Pin produk 109 | TDI — Test data in |
| Pin produk 110 | TDO — Test data out |
| Pin produk 111 | TCK — Test clock |
| Pin produk 112 | VCC — 5 V supply |
| Pin produk 113 | IPEND — Interrupt pending |
| Pin produk 114 | IR0 — Interrupt request 0 |
| Pin produk 115 | IR1 — Interrupt request 1 |
| Pin produk 116 | IR2 — Interrupt request 2 |
| Pin produk 117 | IR3 — Interrupt request 3 |
| Pin produk 118 | IR4 — Interrupt request 4 |
| Pin produk 119 | IR5 — Interrupt request 5 |
| Pin produk 120 | IR6 — Interrupt request 6 |
| Pin produk 121 | IR7 — Interrupt request 7 |
| Pin produk 122 | GND — Ground |
| Pin produk 123 | NC — Not connected (per datasheet) |
| Pin produk 124 | NC — Not connected (per datasheet) |
| Pin produk 125 | NC — Not connected (per datasheet) |
| Pin produk 126 | NC — Not connected (per datasheet) |
| Pin produk 127 | VCC — 5 V supply |
| Pin produk 128 | NC — Not connected (per datasheet) |
| Pin produk 129 | NC — Not connected (per datasheet) |
| Pin produk 130 | NC — Not connected (per datasheet) |
| Pin produk 131 | NC — Not connected (per datasheet) |
| Pin produk 132 | NC — Not connected (per datasheet) |
Aplikasi Umum
MC68030FE25C cocok untuk 6 aplikasis: VMEbus Single-Board Computers, Aerospace Command-and-Control Systems, Industrial Process Controllers, Telecommunications Switching Equipment, Medical Imaging Front-End Controllers, Military Avionics and Radar Signal Processing.
VMEbus Single-Board Computers
The MC68030FE25C remains a canonical CPU choice for legacy VMEbus single-board computers in industrial and military systems. Its 25 MHz clock, 32-bit data bus and integrated MMU support real VxWorks and pSOS-plus installations that target the VMEbus backplane, while the 132-CQFP ceramic package withstands the thermal cycling of conduction-cooled enclosures. Designers pair the 68030 with the MC68882 FPU co-processor for floating-point telemetry, and the on-chip burst-mode DRAM controller simplifies the external memory array. Compared with newer ARM SoCs the 68030FE25C's strength is software continuity for code originally written for the 68020/68030 instruction set.
Direkomendasikan
Aerospace Command-and-Control Systems
In aerospace command-and-control subsystems the MC68030FE25C is preferred for its radiation-tolerant ceramic package and proven reliability. The 132-CQFP body is rated for -55C to +125C operation, supports conduction cooling, and survives the vibration profile of airborne and naval platforms. The on-chip MMU allows real-time operating systems such as VxWorks to enforce memory partitioning between flight-critical and mission-planning tasks, while the 25 MHz throughput is sufficient for sensor-fusion loops at 100 Hz update rates. Long-term availability through Rochester Electronics makes the part a practical choice for programs with multi-decade support obligations.
Direkomendasikan
Industrial Process Controllers
The MC68030FE25C anchors deterministic process controllers where decades of field-tested M68000 firmware cannot be revalidated on a new architecture. Its 32-bit ALU executes PID loops with cycle times below 10 microseconds at 25 MHz, and the integrated MMU isolates the supervisory runtime from the control application for IEC 61508 SIL-2 certification. The burst-mode DRAM controller handles large process historian databases without taxing the bus, and the ceramic CQFP package tolerates the elevated ambient of control-room cabinets. Engineers keep the 68030FE25C precisely because its deterministic interrupt latency and toolchain maturity are well understood across the process-control industry.
Direkomendasikan
Telecommunications Switching Equipment
Telecommunications central-office switching equipment originally built around the MC68030FE25C continues to operate in carrier networks that cannot tolerate forklift upgrades. The 32-bit address space maps the entire signalling database, and the on-chip instruction/data caches cut external memory accesses enough to handle DS0 channel aggregation. The MMU supports paged-memory operating systems such as pSOS that protect signalling software from misbehaving management tasks. The 132-CQFP ceramic package is also fully compatible with the leaded soldering processes used in telecom-grade PCB assembly, simplifying field repairs.
Direkomendasikan
Medical Imaging Front-End Controllers
Medical imaging platforms such as ultrasound beamformers and MRI front-end controllers adopted the MC68030FE25C for its deterministic interrupt response and mature toolchain. The 25 MHz core coordinates beamformer channel updates while the integrated MMU protects the patient-database software from buffer overruns in the signal-acquisition tasks. The ceramic package supports the autoclave-grade cleaning required for surgical-room equipment. Manufacturers keep the 68030FE25C in active designs because revalidation costs on a new processor would require re-submitting the imaging system to FDA 510(k) review.
Direkomendasikan
Military Avionics and Radar Signal Processing
The MC68030FE25C is deployed in military avionics mission computers and radar pre-processors where the ceramic 132-CQFP package, MMU-based virtual memory and 25 MHz deterministic throughput remain acceptable. Its integrated caches and burst-mode memory controller handle radar return-data streams with predictable latency, while the MMU enforces process separation mandated by DO-178C objectives. The same part is also chosen for naval combat-system consoles because the ceramic package passes MIL-STD-810 environmental screening. Cross-reference data confirms that no second-source drop-in equivalent exists, so the 68030FE25C remains the only pin-compatible choice for these platforms.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk MC68030FE25C — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | MC68030RC25C | MC68030FE25B | MC68EC030CFE25C | MC68030RC20C | MC68030RC50C |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 132-CQFP (24x24) | 132-PGA - different package, same die | 132-CQFP (24x24) - same | 132-CQFP (24x24) - same | 132-PGA - different package, same die | 132-PGA - different package, same die |
| Clock Frequency | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 20 MHz (-20%) | 50 MHz (+100%) |
| MMU Present | Yes | Yes | Yes | No (EC variant) | Yes | Yes |
| Performance | approximately 7 MIPS | approximately 7 MIPS | approximately 7 MIPS | approximately 7 MIPS | approximately 5.6 MIPS | approximately 14 MIPS |
| On-chip Caches | 256B I-cache + 256B D-cache | 256B I-cache + 256B D-cache | 256B I-cache + 256B D-cache | 256B I-cache + 256B D-cache | 256B I-cache + 256B D-cache | 256B I-cache + 256B D-cache |
| FP Co-processor Interface | Yes (MC68881/MC68882) | Yes (MC68881/MC68882) | Yes (MC68881/MC68882) | Yes (MC68881/MC68882) | Yes (MC68881/MC68882) | Yes (MC68881/MC68882) |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
Diferensiator Kunci
- Ceramic 132-CQFP package rated for aerospace thermal and mechanical environments (vsMC68030RC25C (plastic 132-PGA))
- Includes the on-chip MMU for virtual-memory operating systems (vsMC68EC030CFE25C (EC variant))
- 25 MHz rating matches the canonical 68030 design point for legacy firmware timing (vsMC68030RC20C (20 MHz))
- Lower cost and wider availability than the 50 MHz speed-grade (vsMC68030RC50C (50 MHz))
Catatan Desain
The MC68030FE25C draws approximately 500 mA at 25 MHz with a 5 V supply, so the system must budget at least 2.5 W of regulated 5 V rail capacity. Use a low-impedance plane for VCC and GND with multiple decoupling capacitors (0.1 uF ceramic every four pins and 10 uF bulk at the supply pins) to suppress the 25 MHz fundamental and its harmonics. Power sequencing is not required, but the CLK input should be stable within 100 ms of VCC ramp to prevent metastable latch-up of the internal pipeline.
The 132-CQFP ceramic package has a thermal resistance of approximately 20 C/W junction-to-case for the MC68030FE25C. In a conduction-cooled chassis the device should be thermally bonded to a cold wall with a compliant heat-spreader; in a forced-air enclosure provide at least 100 LFM of airflow across the package. Designers should avoid placing the 68030 above 70C ambient in sealed enclosures without derating, because ceramic-package thermal cycling accelerates solder-joint fatigue on the gull-wing leads.
Route the address and data buses as matched-length traces within 25 mm of the package, and isolate the CLK trace with a ground guard to control reflections. Place the 68030 as close as practical to the DRAM array to keep burst-mode timing within the 4-clock-cycle burst specification. Use a four-layer PCB with dedicated VCC and GND planes to control the impedance of the 32-bit data bus; series damping resistors on the AS and DS strobes are recommended to reduce ringing on long backplane connections.
Three pitfalls recur with the MC68030FE25C: (1) failing to initialize the MMU translation tables before the first user-mode fetch, which causes a double bus fault during boot; (2) leaving the CBREQ/CBACK pins floating when no co-processor is fitted, which can latch spurious bus requests; (3) forgetting the IPL2/IPL1/IPL0 pull-up resistors so that spurious interrupts are serviced during power-up. Always ground CBREQ and pull CBACK high through 10 kohm when no FPU is mounted.
Informasi Konformitas
Ceramic 132-CQFP package is not RoHS-compliant by default; lead-free / halogen-free status was not present in the verified distributor data and is marked unknown. AEC-Q100 is not applicable because this is an MPU, not an automotive analog/digital IC.
