MC68030FE25C - 25MHz 32-Bit MPU w/ MMU, 132-CQFP | NXP
料号： MC68030FE25C ⚠ 最后一次采购| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $89 | $89.00 |
| 10 | $78.5 | $785.00 |
| 100 | $69.2 | $6,920.00 |
| 250 | $62.75 | $15,687.50 |
| 500 | $57.4 | $28,700.00 |
MC68030FE25C 概述
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.
直接替换替代料： MC68030FE25C ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MC68030FE25C （相同外形与封装尺寸） ——差异在于 Maximum Clock Frequency, Operating Voltage, Package.
快速对比工具——选择替代料号进行并排对比：
MC68030RC25C
✅ 直接替换📋 参考替代料（不在目录中）
MC68030FE25B
✅ 直接替换📋 参考替代料（不在目录中）
MC68EC030CFE25C
✅ 直接替换📋 参考替代料（不在目录中）
MC68030RC20C
✅ 直接替换📋 参考替代料（不在目录中）
MC68030RC50C
✅ 直接替换📋 参考替代料（不在目录中）
MC68030FE25C 最大额定值与电气特性
| Core Architecture | M68000 (M680x0 CISC) |
| 数据总线宽度 | 32-bit |
| Address Bus Width | 32-bit |
| 最大时钟频率 | 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 |
| 封装 | 132-CQFP (24x24 mm, ceramic) |
| Temperature Grade | Commercial (0C to +70C) |
| 安装类型 | Surface Mount |
| Instruction Set Compatibility | User-mode binary compatible with MC68020; supports M680x0 line-A/line-F emulation |
| Process Technology | HCMOS |
MC68030FE25C 引脚配置
| 引脚 1 | A0 — Address bus bit 0 |
| 引脚 2 | A1 — Address bus bit 1 |
| 引脚 3 | A2 — Address bus bit 2 |
| 引脚 4 | A3 — Address bus bit 3 |
| 引脚 5 | A4 — Address bus bit 4 |
| 引脚 6 | A5 — Address bus bit 5 |
| 引脚 7 | A6 — Address bus bit 6 |
| 引脚 8 | A7 — Address bus bit 7 |
| 引脚 9 | A8 — Address bus bit 8 |
| 引脚 10 | A9 — Address bus bit 9 |
| 引脚 11 | A10 — Address bus bit 10 |
| 引脚 12 | A11 — Address bus bit 11 |
| 引脚 13 | A12 — Address bus bit 12 |
| 引脚 14 | A13 — Address bus bit 13 |
| 引脚 15 | A14 — Address bus bit 14 |
| 引脚 16 | A15 — Address bus bit 15 |
| 引脚 17 | GND — Ground |
| 引脚 18 | A16 — Address bus bit 16 |
| 引脚 19 | A17 — Address bus bit 17 |
| 引脚 20 | A18 — Address bus bit 18 |
| 引脚 21 | A19 — Address bus bit 19 |
| 引脚 22 | A20 — Address bus bit 20 |
| 引脚 23 | A21 — Address bus bit 21 |
| 引脚 24 | A22 — Address bus bit 22 |
| 引脚 25 | A23 — Address bus bit 23 |
| 引脚 26 | A24 — Address bus bit 24 |
| 引脚 27 | A25 — Address bus bit 25 |
| 引脚 28 | A26 — Address bus bit 26 |
| 引脚 29 | A27 — Address bus bit 27 |
| 引脚 30 | A28 — Address bus bit 28 |
| 引脚 31 | A29 — Address bus bit 29 |
| 引脚 32 | A30 — Address bus bit 30 |
| 引脚 33 | A31 — Address bus bit 31 |
| 引脚 34 | VCC — 5 V supply |
| 引脚 35 | D0 — Data bus bit 0 |
| 引脚 36 | D1 — Data bus bit 1 |
| 引脚 37 | D2 — Data bus bit 2 |
| 引脚 38 | D3 — Data bus bit 3 |
| 引脚 39 | D4 — Data bus bit 4 |
| 引脚 40 | D5 — Data bus bit 5 |
| 引脚 41 | D6 — Data bus bit 6 |
| 引脚 42 | D7 — Data bus bit 7 |
| 引脚 43 | D8 — Data bus bit 8 |
| 引脚 44 | D9 — Data bus bit 9 |
| 引脚 45 | D10 — Data bus bit 10 |
| 引脚 46 | D11 — Data bus bit 11 |
| 引脚 47 | D12 — Data bus bit 12 |
| 引脚 48 | D13 — Data bus bit 13 |
| 引脚 49 | D14 — Data bus bit 14 |
| 引脚 50 | D15 — Data bus bit 15 |
| 引脚 51 | GND — Ground |
| 引脚 52 | D16 — Data bus bit 16 |
| 引脚 53 | D17 — Data bus bit 17 |
| 引脚 54 | D18 — Data bus bit 18 |
| 引脚 55 | D19 — Data bus bit 19 |
| 引脚 56 | D20 — Data bus bit 20 |
| 引脚 57 | D21 — Data bus bit 21 |
| 引脚 58 | D22 — Data bus bit 22 |
| 引脚 59 | D23 — Data bus bit 23 |
| 引脚 60 | D24 — Data bus bit 24 |
| 引脚 61 | D25 — Data bus bit 25 |
| 引脚 62 | D26 — Data bus bit 26 |
| 引脚 63 | D27 — Data bus bit 27 |
| 引脚 64 | D28 — Data bus bit 28 |
| 引脚 65 | D29 — Data bus bit 29 |
| 引脚 66 | D30 — Data bus bit 30 |
| 引脚 67 | D31 — Data bus bit 31 |
| 引脚 68 | VCC — 5 V supply |
| 引脚 69 | CLK — Clock input |
| 引脚 70 | RESET — Reset input |
| 引脚 71 | HALT — Halt input |
| 引脚 72 | IPL0 — Interrupt priority level 0 |
| 引脚 73 | IPL1 — Interrupt priority level 1 |
| 引脚 74 | IPL2 — Interrupt priority level 2 |
| 引脚 75 | BR — Bus request |
| 引脚 76 | BG — Bus grant |
| 引脚 77 | BGACK — Bus grant acknowledge |
| 引脚 78 | AS — Address strobe |
| 引脚 79 | DS — Data strobe |
| 引脚 80 | R/W — Read/Write control |
| 引脚 81 | SIZ0 — Transfer size bit 0 |
| 引脚 82 | SIZ1 — Transfer size bit 1 |
| 引脚 83 | FC0 — Function code bit 0 |
| 引脚 84 | FC1 — Function code bit 1 |
| 引脚 85 | FC2 — Function code bit 2 |
| 引脚 86 | GND — Ground |
| 引脚 87 | CBREQ — CPU bus request (co-processor) |
| 引脚 88 | CBACK — Co-processor bus acknowledge |
| 引脚 89 | CDIS — Co-processor disable |
| 引脚 90 | DBEN — Data buffer enable |
| 引脚 91 | OE — Output enable |
| 引脚 92 | STS — Status output |
| 引脚 93 | BERR — Bus error |
| 引脚 94 | HALT — Halt acknowledge (shared) |
| 引脚 95 | AVEC — Autovector request |
| 引脚 96 | VCC — 5 V supply |
| 引脚 97 | ECLK — External clock output |
| 引脚 98 | MMUDIS — MMU disable (test mode) |
| 引脚 99 | RMC — Read-modify-write cycle |
| 引脚 100 | CIOUT — Cache inhibit out |
| 引脚 101 | CIIN — Cache inhibit in |
| 引脚 102 | CB0 — Cache burst bit 0 |
| 引脚 103 | CB1 — Cache burst bit 1 |
| 引脚 104 | GND — Ground |
| 引脚 105 | TBI — Time base input |
| 引脚 106 | TBO — Time base output |
| 引脚 107 | TRST — Test reset |
| 引脚 108 | TMS — Test mode select |
| 引脚 109 | TDI — Test data in |
| 引脚 110 | TDO — Test data out |
| 引脚 111 | TCK — Test clock |
| 引脚 112 | VCC — 5 V supply |
| 引脚 113 | IPEND — Interrupt pending |
| 引脚 114 | IR0 — Interrupt request 0 |
| 引脚 115 | IR1 — Interrupt request 1 |
| 引脚 116 | IR2 — Interrupt request 2 |
| 引脚 117 | IR3 — Interrupt request 3 |
| 引脚 118 | IR4 — Interrupt request 4 |
| 引脚 119 | IR5 — Interrupt request 5 |
| 引脚 120 | IR6 — Interrupt request 6 |
| 引脚 121 | IR7 — Interrupt request 7 |
| 引脚 122 | GND — Ground |
| 引脚 123 | NC — Not connected (per datasheet) |
| 引脚 124 | NC — Not connected (per datasheet) |
| 引脚 125 | NC — Not connected (per datasheet) |
| 引脚 126 | NC — Not connected (per datasheet) |
| 引脚 127 | VCC — 5 V supply |
| 引脚 128 | NC — Not connected (per datasheet) |
| 引脚 129 | NC — Not connected (per datasheet) |
| 引脚 130 | NC — Not connected (per datasheet) |
| 引脚 131 | NC — Not connected (per datasheet) |
| 引脚 132 | NC — Not connected (per datasheet) |
典型应用
MC68030FE25C 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： MC68030FE25C ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Ceramic 132-CQFP package rated for aerospace thermal and mechanical environments （对比 MC68030RC25C (plastic 132-PGA))
- Includes the on-chip MMU for virtual-memory operating systems （对比 MC68EC030CFE25C (EC variant))
- 25 MHz rating matches the canonical 68030 design point for legacy firmware timing （对比 MC68030RC20C (20 MHz))
- Lower cost and wider availability than the 50 MHz speed-grade （对比 MC68030RC50C (50 MHz))
设计说明
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.
合规信息
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.
