PC7447A Datasheet, PDF (1/44 Pages) ATMEL Corporation – PowerPC RISC microprocessor

Features
• 3000 Dhrystone 2.1 MIPS at 1.3 GHz
• Selectable Bus Clock (30 CPU Bus Dividers up to 28x)
• Selectable MPx/60x Interface Voltage (1.8V, 2.5V)
• P_D Typically 18W at 1.33 GHz at V_DD = 1.3V; 8.0W at 1 GHz at V_DD = 1.1V
Full Operating Conditions
• Nap, Doze and Sleep Power Saving Modes
• Superscalar (Four Instructions Fetched Per Clock Cycle)
• 4 GB Direct Addressing Range
• Virtual Memory: 4 Hexabytes (2⁵²)
• 64-bit Data and 36-bit Address Bus Interface
• Integrated L1: 32 KB Instruction and 32 KB Data Cache
• Integrated L2: 512 KB
• 11 Independent Execution Units and 3 Register Files
• Write-back and Write-through Operations
• f_INT Max = 1.33 GHz (1.42 GHz to be Confirmed)
• f_BUS Max = 133 MHz/166 MHz
Description
The PC7447A host processor is a high-performance, low-power, 32-bit implementa-
tions of the PowerPC Reduced Instruction Set Computer (RISC) architecture
combined with a full 128-bit implementation of Freescale^®’s AltiVec^™ technology.
This microprocessor is ideal for leading-edge embedded computing and signal pro-
cessing applications. The PC7447A features 512 KB of on-chip L2 cache. The
PC7447A microprocessor has no backside L3 cache, allowing for a smaller package
designed as a pin-for-pin replacement for the PC7447 microprocessor. This device
benefits from a silicon-on-insulator (SOI) CMOS process technology, engineered to
help deliver tremendous power savings without sacrificing speed. A low-power version
of the PC7447A microprocessor is also available.
Figure 1-1 shows a block diagram of the PC7447A. The core is a high-performance
superscalar design supporting a double-precision floating-point unit and a SIMD multi-
media unit. The memory storage subsystem supports the MPX bus protocol and a
subset of the 60x bus protocol to the main memory and other system resources.
Note that the PC7447A is a footprint-compatible, drop-in replacement in a PC7447
application if the core power supply is 1.3V.
Screening
• Full Military Temperature Range (T_j = -55°C, +125°C)
• Industrial Temperature Range (T_j = -40°C, +110°C)
PowerPC^®
7447A
RISC
Microprocessor
PC7447A
Preliminary
GH suffix
HITCE 360
Rev. 5387B–HIREL–07/05