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參數(shù)資料
| 型號： | 80486DX4RP-25 |
| 廠商： | MAXWELL TECHNOLOGIES |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 25 MHz, MICROPROCESSOR, CQFP208 |
| 封裝： | RAD-PAK, QFP-208 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 151K |
| 代理商： | 80486DX4RP-25 |
Specification and design are subject to change without notice.
RADIATION HARDENED
32-BIT MICROPROCESSOR
1998 Space Electronics Inc.
All rights reserved
--4.3--
80486DX4RP
1
0507.98Rev0
FEATURES:
32-Bit Microprocessor
Total Dose Hardness: typical 100 Krad (Si); dependent upon
orbit
Single Event Effect
- SEL
TH = 40 MeV/mg/cm
2
- SEU
TH = 5 MeV/mg/cm
2
Package:
- 208 Pin RAD-PAK Quad Flat Pack
8-Kilobyte On-Chip Cache with Consistency Support
External Cache Controller
Integrated Floating-Point Unit
Single Cycle Execution
32-Bit RISC Integer Core
Instruction Pipelining
On-Chip Management Unit
Write Buffers
Bus Backoff
Instruction Restart
On Chip Floating Point Unit
DESCRIPTION:
Space Electronics’ 80486DX4RP (RP for RAD-PAK) high-performance 32-bit
microprocessor features a typical 100krad (Si) total dose tolerance. The
80486DX4RP processor integrates an 8K unified cache and floating-point (FPU)
hardware-on-chip.The on-chip memory management unit is completely
compatible with the 80386 processor. The 16-kilobyte on-chip cache memory
allows storing of frequently used data and code on-chip, reducing accesses to the
external bus. Its speed-multiplying technology allows the processor to operate at
frequencies higher than the external memory bus. The clock multiplier on the
80486DX4RP improves execution performance without increasing board design
complexity and the Write-Back Enhanced processors are capable of using an on-
chip write-back cache policy. It enhances all operations operating out of the
cache and/or not blocked by external bus accesses. The burst bus feature enables
fast cache fills. The patented radiation-hardened RAD-PAK technology
incorporates radiation shielding in the microcircuit package. It provides a 100
krad or better (Si) total dose survivability,based on a GEO-type orbit. Actual TID
tolerance is dependent upon orbit and mission duration. Capable of surviving in
space environment, the 80486DX4 is ideal for satellite, spacecraft, and space
probe missions. It is available in Class S packaging and screening.
--Preliminary--
SEi
80486DX4RP
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