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MC68EC040FE25B规格书详情
INTRODUCTION
The MC68040, MC68040V, MC68LC040, MC68EC040, and MC68EC040V (collectively called M68040) are Motorola’s third generation of M68000-compatible, high-performance, 32-bit microprocessors. All five devices are virtual memory microprocessors employing multiple concurrent execution units and a highly integrated architecture that provides very high performance in a monolithic HCMOS device. They integrate an MC68030-compatible integer unit (IU) and two independent caches. The MC68040, MC68040V, and MC68LC040 contain dual, independent, demand-paged memory management units (MMUs) for instruction and data stream accesses and independent, 4-Kbyte instruction and data caches. The MC68040 contains an MC68881/MC68882-compatible floatingpoint unit (FPU). The use of multiple independent execution pipelines, multiple internal buses, and a full internal Harvard architecture, including separate physical caches for both instruction and data accesses, achieves a high degree of instruction execution parallelism on all three processors. The on-chip bus snoop logic, which directly supports cache coherency in multimaster applications, enhances cache functionality.
FEATURES
The main features of the M68040 are as follows:
• 6-Stage Pipeline, MC68030-Compatible IU
• MC68881/MC68882-Compatible FPU
• Independent Instruction and Data MMUs
• Simultaneously Accessible, 4-Kbyte Physical Instruction Cache and 4-Kbyte Physical Data Cache
• Low-Latency Bus Accesses for Reduced Cache Miss Penalty
• Multimaster/Multiprocessor Support via Bus Snooping
• Concurrent IU, FPU, MMU, and Bus Controller Operation Maximizes Throughput
• 32-Bit, Nonmultiplexed External Address and Data Buses with Synchronous Interface
• User Object-Code Compatible with All Earlier M68000 Microprocessors
• 4-Gbyte Direct Addressing Range
• Software Support Including Optimizing C Compiler and UNIX® System V Port
产品属性
- 型号:
MC68EC040FE25B
- 制造商:
MOTOROLA
- 制造商全称:
Motorola, Inc
- 功能描述:
M68000-compatible, high-performance, 32-bit microprocessors
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MOT |
2020+ |
QFP |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
MOT |
2016+ |
QFP |
6528 |
只做原厂原装现货!终端客户个别型号可以免费送样品! |
询价 | ||
MOT |
23+ |
PLCC |
9526 |
询价 | |||
MOTOROLA |
22+ |
2250 |
100%全新原装公司现货供应!随时可发货 |
询价 | |||
MOTOROLA |
23+ |
QFP |
4500 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
MOTOROLA/摩托罗拉 |
23+ |
QFP |
90000 |
全新原包现货 |
询价 | ||
FREESCAL |
23+ |
BGAQFP |
8659 |
原装公司现货!原装正品价格优势. |
询价 | ||
MOT |
20+/21+ |
SOP |
4350 |
全新原装进口价格优惠 |
询价 | ||
MOT |
2022 |
QFP |
2499 |
原装库存特价销售 |
询价 | ||
MOTOROLA |
2023+ |
CQFP |
80000 |
一级代理/分销渠道价格优势 十年芯程一路只做原装正品 |
询价 |