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MC68882CEI16A
+BOMIC FLOATING-POINT CO-PROC 68PLCC
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Nhà sản xuấtNXP Hoa Kỳ Inc.
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Ông. Phần #MC68882CEI16A
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Bảng dữ liệu MC68882CEI16A DataSheet
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Gói 68-LCC (J-Lead)
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tube |
| ProductStatus | Obsolete |
| Type | Floating-Point Co-Processor |
| MountingType | Surface Mount |
| Package/Case | 68-LCC (J-Lead) |
Tổng quan
Description
Introduced in the late 1980s, it supports the IEEE 754 standard for floating-point arithmetic, ensuring compatibility and consistency across platforms. The coprocessor efficiently handles both single and double-precision calculations, contributing significantly to applications requiring intensive mathematical processing, such as scientific computing, graphics, and engineering simulations.
The MC68882 is pin-compatible with its predecessor, the MC68881, allowing for straightforward upgrades in systems designed to accommodate it. Its integration alongside the main CPU results in improved performance for software applications leveraging floating-point calculations, making it a valuable component in high-performance computing environments of its time.
Equivalent
Features
1. Floating-Point Arithmetic: Supports single, double, and extended precision operations, enhancing the computational capabilities of the host CPU.
2. Performance: Operates at a clock speed of 16 MHz, providing efficient processing power for mathematical computations.
3. Instruction Set: Implements a comprehensive set of floating-point instructions, including arithmetic, trigonometric, logarithmic, and exponential functions.
4. Compatibility: Designed for seamless integration with 68020 and 68030 processors, maintaining backward compatibility with 68000 series systems.
5. Parallel Processing: Allows concurrent processing of floating-point and integer operations, improving overall system performance.
6. Bus Interface: Utilizes a 32-bit data bus for high-speed data transfer, reducing bottlenecks in data-heavy applications.
7. Power Consumption: Features efficient power usage, making it suitable for a wide range of applications, including embedded systems and desktop computers.
This co-processor is ideal for applications requiring precise mathematical computations, such as scientific calculations, computer graphics, and engineering software.
Pinout
The MC68882 comes in a 40-pin Dual In-line Package (DIP). Its pin functions are primarily focused on interfacing with the main CPU and memory. Key functions include data and address lines for communication, control lines for synchronization, and various power and ground pins. Specific pin functions include:
- Data Bus: Used for transferring data between the CPU and the co-processor.
- Address Bus: Used to specify the location of data in memory.
- Control Lines: Include signals like clock input, chip select, and interrupt lines.
Overall, the MC68882 is utilized to offload floating-point arithmetic from the main CPU, thereby improving system performance for applications requiring extensive mathematical computations.