Atmel PC7457
The PC7457 and PC7447 are implementations of the PowerPC microprocessor family of reduced instruction set computer (RISC) microprocessors. This document describes pertinent electrical and physical characteristics of the PC7457. The PC7457 is the fourth implementation of the fourth generation (G4) microprocessors from Motorola.| Part No. | PC7457 |
|---|---|
| Datasheet | PC7457 Download |
| Manufacturer |  Atmel |
| Description | PowerPC 7457 RISC Microprocessor |
| Buy | Stock & Price |
FEATURES
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● 3000 Dhrystone 2.1 MIPS at 1.3 GHz Selectable Bus Clock (30 CPU Bus Dividers up to 28x) 13 Selectable Core-to-L3 Frequency Divisors Selectable MPx/60x Interface Voltage (1.8V, 2.5V) Selectable L3 Interface of 1.8V or 2.5V PD Typical 12.6W at 1 GHz at VDD = 1.3V; 8.3W at 1 GHz at VDD = 1.1V, Full Operating Conditions Nap, Doze and Sleep Modes for Power Saving Superscalar (Four Instructions Fetched Per Clock Cycle) 4 GB Direct Addressing Range Virtual Memory: 4 Hexabytes (252) 64-bit Data and 32-bit Address Bus Interface Integrated L1: 32 KB Instruction and 32 KB Data Cache Integrated L2: 512 KB 11 Independent Execution Units and Three Register Files Write-back and Write-through Operations fINT Max = 1 GHz (1.2 GHz to be Confirmed) fBUS Max = 133 MHz/166 MHz PowerPC 7457 RISC Microprocessor PC7457/47 Preliminary Specification α-site
DESCRIPTION
This document is primarily concerned with the PowerPC™ PC7457; however, unless otherwise noted, all information here also applies to the PC7447.
