Atmel PC7447
The PC7447 is identical to the PC7457 except it does not support the L3 cache interface. 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 interface to main memory and other system resources.| Part No. | PC7447 |
|---|---|
| Datasheet | PC7447 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.
