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MC68882EI33A
+NomenclatureIC FLOATING-POINT CO-PROC 68PLCC
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FabricantNXP USA Inc.
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Pièce fabricant #MC68882EI33A
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Fiche technique MC68882EI33A DataSheet
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Package LCC-68
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En stock8434
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Spécifications
| Attribut | Valeur |
| Package / Case | Tube |
| Part Status | Obsolete |
| Type | Floating-Point Co-Processor |
| Mounting Type | Surface Mount |
Présentation
Description
Key features of the MC68882 include full IEEE 754 compliance for floating-point arithmetic, a parallel instruction execution architecture that allows overlapping operations, and independent pipelines for instruction fetch and execution. This coprocessor also supports extended precision (80-bit) floating-point numbers, ensuring high precision and accuracy in calculations. The MC68882 is typically used in systems where high-speed computation is essential, and it pairs seamlessly with Motorola's 680x0 family of CPUs to offload complex tasks, thus optimizing overall system performance.
Equivalent
Features
1. Performance: It enhances floating-point arithmetic operations, providing acceleration for mathematical calculations, which is beneficial in applications requiring intensive computations.
2. Compatibility: The coprocessor is compatible with the MC68020 and MC68030 microprocessors, allowing seamless integration.
3. Precision: Supports IEEE 754 standard for single-precision (32-bit), double-precision (64-bit), and extended-precision (80-bit) floating-point formats, ensuring accuracy and consistency in calculations.
4. Instruction Set: Offers a rich set of floating-point instructions, including arithmetic operations, trigonometric functions, and logarithmic functions, enabling a wide range of mathematical computations.
5. Clock Speed: The "33A" in its designation typically indicates a clock speed of 33 MHz, providing fast processing capabilities.
6. Low Power Consumption: Designed to consume minimal power, making it suitable for embedded systems and other power-sensitive applications.
7. Package: It is available in a 68-pin ceramic PGA (Pin Grid Array) package, facilitating integration into circuit boards.
These features make the MC68882EI33A a robust solution for enhancing computational performance in systems using Motorola's 68000 series processors.
Pinout
The MC68882 typically comes in a 40-pin ceramic or plastic package. These pins are used for various functions, including data transfer, power supply, and control signals. Key pin functions include:
1. Data Pins: Used for data transfer between the coprocessor and the host CPU/memory. These are usually 32 bits wide to match the data bus of the associated CPU.
2. Address Pins: Carry address information to identify specific memory locations or registers.
3. Control Pins: Manage the operation of the coprocessor, including signals for read/write operations, bus arbitration, and synchronization with the main CPU.
4. Power and Ground Pins: Provide the necessary electrical power and grounding required for the operation of the chip.
The MC68882 provides improved performance over its predecessor, the 68881, due to its faster execution of floating-point instructions and enhanced instruction set.
Manufacturer
Freescale Semiconductor was spun off from Motorola in 2004 and operated as an independent company until it was acquired by NXP Semiconductors in December 2015. NXP Semiconductors is a global semiconductor manufacturer headquartered in the Netherlands, known for providing high-performance mixed-signal and standard product solutions. These solutions are used in a variety of applications, including automotive, industrial, mobile, and communication infrastructure. This acquisition made NXP one of the leading suppliers of semiconductors, with a strong emphasis on automotive electronics and secure IoT solutions.
Application
1. Embedded Systems: Provides efficient floating-point calculations for embedded applications.
2. Industrial Control: Enhances processing in automation and control systems requiring precise computations.
3. Telecommunications: Supports signal processing tasks in networking equipment.
4. Aerospace and Defense: Used in navigation and avionics systems for real-time data processing.
5. Scientific Computing: Facilitates complex mathematical models and simulations.
6. Graphics and Imaging: Speeds up rendering and processing in graphic-intensive tasks.
These areas benefit from the coprocessor's ability to handle complex arithmetic operations efficiently.