MPC8540CPX667JB

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Embedded - Microprocessors

The MPC8540CPX667JB is one of Freescale’s PowerQUICC II Pro series of components. This microprocessor module is designed to be used in space-constrained environments, where low power consumption and high performance is a priority. It’s targeted applications are varied, ranging from network and telecommunications functions, to embedded applications such as medical imaging, and point-of-sale devices.

Functionality

The MPC8540CPX667JB features a customized version of the PowerQUICC II Pro core, and includes an on-board floating-point unit (FPU). It runs at 550MHz and can be used as a controller or application processor in 32-bit/64-bit system designs. It also has integrated hardware accelerators to visibly reduce design size and system power requirements.

Connectivity

The MPC8540CPX667JB has an integrated DDR SDRAM controller and an external memory controller for up to 256MB of SDRAM. It also features a local bus interface, dual 10/100 Ethernet controllers, and a serial peripheral interface (SPI).

Power Management

The MPC8540CPX667JB features a low-power design, enabling optimal system level performance and reducing overall power by dynamically scaling performance for application demands. The device uses an integrated voltage regulator module (VRM) to supply the core rail, with an external VRM stepping the core voltage down as needed, depending on the system current demand. Separate controllers manage the voltage rails of other components, such as the DDR and I/O devices, and are programmed based on the system power state and user requirements.

Reliability

The MPC8540CPX667JB adheres to Freescale’s reliability standards, using advanced architectures and design techniques to maximize reliability and system robustness. It offers four-layer chipboard design, power-on reset, tri-state bus lines, and several other features to ensure maximum system reliability and data integrity. Errors are managed via a central error handling unit and a system can be recovered instantly from a software hang due to the integrated watchdog timer.

Conclusion

The MPC8540CPX667JB is a versatile microprocessor module which can be used for a variety of embedded applications, ranging from medical imaging to telecommunications. Its low power consumption, integrated hardware accelerators and dependability make it an ideal choice for tight space constraints and challenging system designs.

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