PC745B/PC755BFS - Rev.1 - 01/11 PC745B AND PC755B PowerPCTM Microprocessors Fact Sheet PC745B and PC755B PowerPC microprocessors are high-performance, low-power, 32-bit implementations of the PowerPC Reduced Instruction Set Computer (RISC) architecture, specially enhanced for embedded applications. The PC755B and PC745B microprocessors differ only in that the PC755B features an enhanced, dedicated L2-cache interface with on-chip L2-tags. Both are software compatible with the PowerPC603e microprocessor family and the PC745B is pin-compatible as well. Both PC745B and PC755B are fully JTAG compliant. PC745B and PC755B Main Features n Six independent execution units - n 2 Integer Units sharing 32 General Purpose Registers Floating Point Unit using a 32-entry FPR file Branch Processing Unit : 4 instructions fetched per clock Load/Store Unit System Register Unit Cache and MMU support - 32-Kbytes, physically addressed, Instruction and Data caches 8-way set associative Instruction and Data caches Dedicated L2-cache with on-chip L2 tags (PC755B only) Separate Instruction and Data MMUs Virtual memory support up to 4 Petabytes (252) Completion Real memory support up to 4 Gigabytes (232) Unit 128-entry instruction and data TLBs Integer Unit Dispatch Unit Gen Gen Reg ReFile name Load/ Store Unit Data Cache Bus Interface Unit System Bus FPU Reg File Floating Point Unit I MMU Inst. Cache D MMU 32bit Address Branch Unit 32/64bit Data L2 tags L2 Cache Port (755 only) L2 Data Bus CPU Summary * Bus Interface - Compatible with 60x processor interface - 32-bit address bus - 64-bit data bus, 32-bit mode selectable - 13 Bus-to-Core frequency multipliers - Selectable interface voltages PC745B 300 - 350 MHz Die Revision CPU Speeds Internal 2.7 = D 300 MHz 350 MHz 2.7 = D 300 MHz 350 MHz 400 MHz 2x, 3x, 3.5x, 4x, 4.5x, 5x, 5.5x, 2x, 3x, 3.5x, 4x, 4.5x, 5x, 5.5x, 6x, 6.5x, 7x, 7.5x, 8x, 10x 6x, 6.5x, 7x, 7.5x, 8x, 10x 32-bit address, 32/64-bit data 32-bit address, 32/64-bit data 3 (2+Branch) 3 (2+Branch) CPU Bus Dividers * Power Management - Low-power design - Selectable 1.8V/2.0V interface voltage - 3 static power saving modes : doze, nap and sleep - Dynamic power management - Integrated thermal management unit * Packaging - 255 Flip-Chip PBGA (PC745B) - 360 Flip-Chip PBGA (PC755B) - 255 and 360 CBGA available upon request Bus Interface Instructions per Clock L1 Cache L2 Cache Core-to-L2 Frequency Divisions Typ/Max Power Dissipation Die Size Process Voltage ATMEL-Grenoble standards - Full Military temperature range (Tj = -55C, + 125C) - Industrial temperature range (Tj = -40C, +110C) SPECint95 (estimated) SPECfp95 (estimated) Other Performance Status Samples Production Execution Units PC755B M ZF U 32-KB Instruction and Data - 32-KB Instruction and Data 256KB, 512KB, 1MB 1:1, 1.5:1, 2:1, 2.5:1, 3:1 4.0W/5.7W @ 350 MHz 4.4W/6.4W @ 400 MHz 2 Package * Screening - FC-PBGA upscreening based upon PC755B 300 - 400 MHz 300 2 51 mm 255-pin Flip-Chip PBGA Ceramic Package if Identifications 0.22 CMOS, 5LM 1.8/2.0 or 3.3V I/O 2.0V internal 15.7 @ 350 MHz 51 mm 360-pin Flip-Chip PBGA Ceramic Package if Identifications 0.22 CMOS, 5LM 1.8/2.0 or 3.3V I/O 2.0V internal 18.1 @ 400MHz 11.6 @ 350 MHz 12.3 @ 400MHz 641 MIPS @ 350 MHz Active Now Now Integer (2) Floating Point Unit Branch Unit Load/Store Unit System Register 733 MIPS @ 400MHz Active Now Now Integer (2) Floating Point Unit Branch Unit Load/Store Unit System Register L x Revision level Type (PCX755B if prototype) D: Rev. 2.7 E: Rev 2.8 Temperature range : Tj Bus divider (to be confirmed) M: -55, +125C V: -40, +110C L: Any valid PLL configuration Package: Max internal processor speed ZF: FC-PBGA 300: 300 MHz 350: 350 MHz 400: 400 MHz, TBC Screening level: U: UpscreeningTest For additional information: contact your local ATMEL-Grenoble representative or visit our web site at http://www.atmel-grenoble.com You may also contact the PowerPC technical hotline at std.hotline@atmel-grenoble.com The PowerPC and PowerPC603e names and the PowerPC logotype are trademarks of International Business Machines Corporation, used under license therefrom. BP123 - 38521 Saint- Egreve Cedex - France - Tel: +33 (0)4 76 58 30 00 - Fax: +33 (0)4 76 58 34 80