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MPC7457EC

NXP

RISC Microprocessor

Freescale Semiconductor Data Sheet: Technical Data MPC7457EC Rev. 8, 04/2013 MPC7457 RISC Microprocessor This hardware...



MPC7457EC

NXP


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Freescale Semiconductor Data Sheet: Technical Data MPC7457EC Rev. 8, 04/2013 MPC7457 RISC Microprocessor This hardware specification is primarily concerned with the MPC7457; however, unless otherwise noted, all information here also applies to the MPC7447. The MPC7457 and MPC7447 are implementations of the PowerPC™ microprocessor family of reduce
More View d instruction set computer (RISC) microprocessors. This hardware specification describes pertinent electrical and physical characteristics of the MPC7457. For functional characteristics of the processor, refer to the MPC7450 RISC Microprocessor Family User’s Manual. To locate any published updates for this hardware specification, refer to the website listed on the back page of this document. Contents 1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3. Comparison with the MPC7455, MPC7445, MPC7450, MPC7451, and MPC7441 . . . . . . . . . . . . 9 4. General Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5. Electrical and Thermal Characteristics . . . . . . . . . . . 11 6. Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 7. Pinout Listings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 8. Package Description . . . . . . . . . . . . . . . . . . . . . . . . . 44 9. System Design Information . . . . . . . . . . . . . . . . . . . 50 11. Document Revision History . . . . . . . . . . . . . . . . . . . 68 10. Part Numbering and Marking . . . . . . . . . . . . . . . . . . 65 Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its products. © 2006 Freescale Semiconductor, Inc. All rights reserved. Overview 1 Overview The MPC7457 is the fourth implementation of the fourth generation (G4) microprocessors from Freescale. The MPC7457 implements the full PowerPC 32-bit architecture and is targeted at networking and computing systems applications. The MPC7457 consists of a processor core, a 512-Kbyte L2, and an internal L3 tag and controller that support a glueless backside L3 cache through a dedicated high-bandwidth interface. The MPC7447 is identical to the MPC7457 except that it does not support the L3 cache interface. Figure 1 shows a block diagram of the MPC7457. The core is a high-performance superscalar design supporting a double-precision floating-point unit and a SIMD multimedia unit. The memory storage subsystem supports the MPX bus protocol and a subset of the 60x bus protocol to main memory and other system resources. The L3 interface supports 1, 2, or 4 Mbytes of external SRAM for L3 cache and/or private memory data. For systems implementing 4 Mbytes of SRAM, a maximum of 2 Mbytes may be used as cache; the remai






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