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Motorola Semiconductor MC68040V Data Manual

Summary

This high-performance MC68040V is a 32-bit, low-power microprocessor designed for demanding embedded and general computing applications. It features robust architecture including dual on-chip caches and independent Memory Management Units (MMUs), enabling exceptional throughput while maintaining ultra-low power consumption at 3.3V. This technical guide provides comprehensive details on the product's sophisticated operations, allowing designers to integrate best-in-class performance with minimal system power draw.

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SEMICONDUCTOR PRODUCT INFORMATION

MC68040V

Product Brief Third-Generation 32-Bit Low-Power Microprocessor The MC68040V is a high-performance, 32-bit, 3.3-V, static microprocessor that provides a low-power mode of operation. The MC68040V is MC68LC040 compatible, featuring dual on-chip caches, fully independent instruction and data demand-paged memory management units (MMUs), and a pipelined integer unit. A high degree of instruction execution parallelism is achieved through the use of a full internal Harvard architecture, multiple internal buses, and independent execution units. Accessed through the LPSTOP instruction, a low- power mode of operation is provided that allows for full power-down capability. The operating current is further reduced by the use of a 3.3-V power supply. The 3.3-V power supply and the low-power mode reduce system power usage dramatically. The functionality provided by the MC68040V makes it the ideal choice for a range of high-performance, power-sensitive, general computing and embedded processing applications. The high level of integration results in high performance while reducing overall system power consumption for the MC68040V. Complete code compatibility with the MC68000 family allows the designer to utilize existing code and past experience to bring products to market quickly. Additionally, a broad base of established development tools, including real-time kernels, operating systems, languages, and applications, assist in product development. Figure 1 shows a simplified block diagram of the MC68040V.

This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.

© MOTOROLA INC., 1993

Page Summary Contents For Motorola Semiconductor MC68040V Data Manual

Page 1 查询MC68040V供应商 Order this document MOTOROLA by MC68040V/D SEMICONDUCTOR PRODUCT INFORMATION MC68040V Product Brief Third-Generation 32-Bit Low-Power Microprocessor The MC68040V is a high-performance, 3...
Page 2 INSTRUCTION DATA BUS INSTRUCTION INSTRUCTION ATC CACHE INSTRUCTION INSTRUCTION ADDRESS INSTRUCTION CACHE/ACCESS/SNOOP FETCH CONTROLLER INSTRUCTION MEMORY MANAGEMENT UNIT DECODE ADDRESS BUS EFFECTIVE A...
Page 3 SIGNALS Figure 2 shows the MC68040V signals in their functional groups. Three signals have been added to the MC68040V: system clock disable (SCD), loss of clock (LOC), and low-frequency operations (LF...
Page 4 INTEGER UNIT The integer unit, which conducts logical and arithmetic operations on the MC68040V, contains a six-stage integer execution pipeline. The pipeline allows the handling of six separate instr...
Page 5 INSTRUCTION AND DATA CACHES Studies have shown that typical programs spend much of their execution time in a few main routines or tight loops. Earlier members of the M68000 family took advantage of th...
Page 6 BUS CONTROLLER The bus controller supports a high-speed, nonmultiplexed, synchronous, external bus interface. The bus controller also provides a burst mode for fast data transfer for both reads and wr...
Page 7 MORE INFORMATION The following table identifies the packages and operating frequencies available for the MC68040V. MC68040V Package/Frequency Availability Frequency Package 25 MHz 33 MHz Ceramic Quad ...
Page 8 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any par...

Manual Details

Brand Motorola
Pages 8
File Size 49.00 KB
Published July 22, 2026
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Frequently Asked Questions

What voltage does the MC68040V operate at?

The microchip operates at a low-voltage level of 3.3 V.

How is the MC68040V compatible with older processors?

It features full code compatibility with the MC68LC040 and supports the entire MC68000 family.

What performance metrics can be expected from the processor?

Performance ranges up to 26.1 MIPS at 25 MHz and 34.8 MIPS at 33 MHz.

How can the system power consumption be minimized?

The MC68040V uses an LPSTOP instruction, which provides a low-power mode for full power-down capability and lowest standby current.