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MPC7445 数据表(PDF) 1 Page - Freescale Semiconductor, Inc |
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MPC7445 数据表(HTML) 1 Page - Freescale Semiconductor, Inc |
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1 / 64 page  © Freescale Semiconductor, Inc., 2005. All rights reserved. Freescale Semiconductor Technical Data The MPC7455 and MPC7445 are implementations of the PowerPC™ microprocessor family of reduced instruction set computer (RISC) microprocessors. This document is primarily concerned with the MPC7455; however, unless otherwise noted, all information here also applies to the MPC7445. This document describes pertinent electrical and physical characteristics of the MPC7455. For functional characteristics of the processor, refer to the MPC7450 RISC Microprocessor Family User’s Manual. To locate any published updates for this document, refer to the website at http://www.freescale.com. 1Overview The MPC7455 is the third implementation of the fourth generation (G4) microprocessors from Freescale. The MPC7455 implements the full PowerPC 32-bit architecture and is targeted at networking and computing systems applications. The MPC7455 consists of a processor core, a 256-Kbyte L2, and an internal L3 tag and controller which support a glueless backside L3 cache through a dedicated high-bandwidth interface. The MPC7445 is identical to the MPC7455 except it does not support the L3 cache interface. Figure 1 shows a block diagram of the MPC7455. MPC7455EC Rev. 4.1, 02/2005 Contents 1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. Comparison with the MPC7400, MPC7410, MPC7450, MPC7451, and MPC7441 . . . . . . . . . . . . . 7 4. General Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5. Electrical and Thermal Characteristics . . . . . . . . . . . 10 6. Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 7. Pinout Listings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 8. Package Description . . . . . . . . . . . . . . . . . . . . . . . . . 41 9. System Design Information . . . . . . . . . . . . . . . . . . . 45 10. Document Revision History . . . . . . . . . . . . . . . . . . . 59 11. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . 60 MPC7455 RISC Microprocessor Hardware Specifications |
类似零件编号 - MPC7445 |
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类似说明 - MPC7445 |
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