参数资料
型号: RK80530KZ017512
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 1400 MHz, MICROPROCESSOR, CPGA370
封装: FLIP CHIP, PGA-370
文件页数: 15/94页
文件大小: 1775K
代理商: RK80530KZ017512
14
Datasheet
Intel Pentium III Processor with 512KB L2 Cache at 1.13GHz to 1.40GHz
Intel requires that designs utilize VRM 8.5 and not VRM 8.4 specifications to meet the Intel
Pentium III processor with 512KB L2 Cache requirements.
To re-emphasize, VRM 8.5 introduces two new signals [VID25mV and VTT_PWRGD] that is
utilized by the Intel Pentium III processor with 512KB L2 Cache and platform. Ignoring and
not connecting these two new pins, as documented in the Platform Design Guidelines, will prevent
the Intel Pentium III processor with 512KB L2 Cache from operating at the specified voltage
levels and core frequency.
Figure 6 provides a high-level interconnection schematic. Please refer
to the VRM 8.5 DC-DC Converter Design Guideline and the appropriate Platform Design
Guidelines for further detailed information on the voltage identification and bus select
implementation.
Refer to Figure 14 for VID power-up sequence and timing requirements.
Note: Please refer to the Intel Pentium III Processor with 512KB L2 Cache Dual Processor
Platform Design Guide for VTT_PWRGD implementation for a Pentium III processor with
512KB L2 Cache platform.
Figure 6. VTT Power Good and Bus Select Interconnect Diagram
VRM 8.5
Voltage Regulator
Pentium III
processor with
512KB L2 Cache
Clock
Driver
Vtt
VTT_PWRGD
(output)
VTT_PWRGD
(input)
Vtt
1k
Vtt
VID[3:0,25mV]
Vcc_core
BSEL [1:0]
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