Datasheet > PCX7457MGU866LC

PCX7457MGU866LC

更新时间： 2023-01-15 00:00:00

品牌	Logo	应用领域
爱特美尔 - ATMEL		/
页数	文件大小	规格书
64页	667K
描述
RISC Microprocessor, 32-Bit, 866MHz, CMOS, CBGA483

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

PCX7457MGU866LC 数据手册

2. General Parameters

Table 2-1 provides a summary of the general parameters of the PC7457.

Table 2-1.

Parameter

Technology

Die size

Device Parameters

Description

0.13 µm CMOS, nine-layer metal

9.1 mm × 10.8 mm

58 million

Transistor count

Logic design

Fully-static

PC7447: surface mount 360 ceramic ball grid array (CBGA)

Packages

PC7457: surface mount 483 ceramic ball grid array (CBGA) + HiTCE CBGA

1.3V ±500 mV DC nominal or 1.1V ±50 mV (nominal, see ”Recommended

Operating Conditions⁽¹⁾” on page 12

Core power supply

I/O power supply

1.8V ±5% DC, or 2.5V ±5% for recommended operating conditions

3. Overview

This section summarizes features of the PC7457 implementation of the PowerPC architecture.

Major features of the PC7457 are as follows:

• High-performance, superscalar microprocessor

– As many as 4 instructions can be fetched from the instruction cache at a time

– As many as 3 instructions can be dispatched to the issue queues at a time

– As many as 12 instructions can be in the instruction queue (IQ)

– As many as 16 instructions can be at some stage of execution simultaneously

– Single-cycle execution for most instructions

– One instruction per clock cycle throughput for most instructions

– Seven-stage pipeline control

• Eleven independent execution units and three register files

– Branch processing unit (BPU) features static and dynamic branch prediction

128-entry (32-set, four-way set-associative) branch target instruction cache (BTIC),

a cache of branch instructions that have been encountered in branch/loop code

sequences. If a target instruction is in the BTIC, it is fetched into the instruction

queue a cycle sooner than it can be made available from the instruction cache.

Typically, a fetch that hits the BTIC provides the first four instructions in the target

stream

2048-entry branch history table (BHT) with two bits per entry for four levels of

prediction – not-taken, strongly not-taken, taken, and strongly taken

Up to three outstanding speculative branches

Branch instructions that don’t update the count register (CTR) or link register (LR)

are often removed from the instruction stream

PC7447/57 [Preliminary]

5345C–HIREL–07/05

1 2 345 6 7...64

下载PDF

与PCX7457MGU866LC相关器件

型号	品牌	描述	获取价格	数据表
PCX7457MGU866NC	ATMEL	RISC Microprocessor, 32-Bit, 866MHz, CMOS, CBGA483, 29 X 29 MM, 3.22 MM HEIGHT, 1.27 MM PI	获取价格
PCX7457MGU933LC	ATMEL	RISC Microprocessor, 32-Bit, 933MHz, CMOS, CBGA483	获取价格
PCX7457MGU933NC	ATMEL	RISC Microprocessor, 32-Bit, 933MHz, CMOS, CBGA483, 29 X 29 MM, 3.22 MM HEIGHT, 1.27 MM PI	获取价格
PCX7457VG1000NC	ATMEL	RISC Microprocessor, 32-Bit, 1000MHz, CMOS, CBGA483, 29 X 29 MM, 3.22 MM HEIGHT, 1.27 MM P	获取价格
PCX7457VG1050NC	ATMEL	RISC Microprocessor, 32-Bit, 1050MHz, CMOS, CBGA483, 29 X 29 MM, 3.22 MM HEIGHT, 1.27 MM P	获取价格
PCX7457VG1100NC	ATMEL	RISC Microprocessor, 32-Bit, 1100MHz, CMOS, CBGA483, 29 X 29 MM, 3.22 MM HEIGHT, 1.27 MM P	获取价格