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| 型号： | RK80532EC056512 |
| 厂商： | INTEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 2400 MHz, MICROPROCESSOR, CPGA604 |
| 封装： | FLIP CHIP, MICRO PGA-604 |
| 文件页数： | 23/102页 |
| 文件大小： | 2349K |
| 代理商： | RK80532EC056512 |
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Low Voltage Intel Xeon Processor at 1.60 GHz, 2.0 GHz and 2.4 GHz
Datasheet
27
2.12
AGTL+ System Bus Specifications
Routing topologies are dependent on the number of processors supported and the chipset used in
the design. Please refer to the appropriate platform design guidelines. In most cases, termination
resistors are not required as these are integrated into the processor. See Table 5 for details on which
AGTL+ signals do not include on-die termination.The termination resistors are enabled or disabled
through the ODTEN pin. To enable termination, this pin should be pulled up to VCC through a
resistor and to disable termination, this pin should be pulled down to VSS through a resistor. For
optimum noise margin, all pull-up and pull-down resistor values used for the ODTEN pin should
have a resistance value within 20 percent of the impedance of the baseboard transmission line
traces. For example, when the trace impedance is 50 W, then a value between 40 and 60 W should
be used. The processor's on-die termination must be enabled for the end agent only. Please refer to
Table 12 for termination resistor values. For more details on platform design see the appropriate
platform design guidelines.
Valid high and low levels are determined by the input buffers via comparing with a reference
voltage called GTLREF.
Table 12 lists the GTLREF specifications. The AGTL+ reference voltage (GTLREF) should be
generated on the baseboard using high precision voltage divider circuits. It is important that the
baseboard impedance is held to the specified tolerance, and that the intrinsic trace capacitance for
the AGTL+ signal group traces is known and well-controlled. For more details on platform design
see the appropriate platform design guidelines.
NOTES:
1. The tolerances for this specification have been stated generically to enable system designer to calculate the
minimum values across the range of VCC.
2. GTLREF is generated from VCC on the baseboard by a voltage divider of 1 percent resistors. Refer to the
appropriate platform design guidelines for implementation details.
3. RTT is the on-die termination resistance measured from VCC to 1/3 VCC at the AGTL+ output driver. Refer to
the Low Voltage Intel Xeon Processor Cache Signal Integrity Models for I/V characteristics.
4. COMP resistors are pull downs to VSS provided on the baseboard with 1% tolerance. See the appropriate
platform design guidelines for implementation details.
5. The VCC referred to in these specifications refers to instantaneous VCC.
6. The COMP resistance value varies by platform. Refer to the appropriate platform design guideline for the
recommended COMP resistance value.
7. The values for RTT and COMP noted as ‘New Designs’ apply to designs that are optimized for the Intel
Xeon processor. Refer to the appropriate platform design guideline for the recommended COMP
resistance value.
2.13
System Bus AC Specifications
The processor system bus timings specified in this section are defined at the processor core (pads).
See Section 5.0 for the pin listing and signal definitions.
Table 12. AGTL+ Bus Voltage Definitions
Symbol
Parameter
Min
Typ
Max
Units
Notes
GTLREF
Bus Reference Voltage
0.63 * VCC - 2%
0.63 * VCC 0.63 * VCC + 2%
V
RTT
Termination Resistance
45
50
55
COMP[1:0]
COMP Resistance
49.55
50
50.45
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RK80532EE056512 SL74T | 制造商:Intel 功能描述: |
| RK80532EE056512S L74T | 制造商:Intel 功能描述:MPU Xeon? Processor 64-Bit 0.13um 2.4GHz 604-Pin FCmPGA2 制造商:Intel 功能描述:PRESTONIA; MPU XEON NETBURST 64BIT 0.13UM 2.4GHZ 604PIN - Trays |
| RK80532EE056512SL74T | 功能描述:IC XEON LV 2.4GHZ 604FC-MPGA-2P RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微处理器 系列:- 标准包装:2 系列:MPC8xx 处理器类型:32-位 MPC8xx PowerQUICC 特点:- 速度:133MHz 电压:3.3V 安装类型:表面贴装 封装/外壳:357-BBGA 供应商设备封装:357-PBGA（25x25） 包装:托盘 |
| RK80532KE056512 | 制造商:Intel 功能描述:OVERLAND DATA BOND - Trays 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| RK80532KE056512S L6GD | 功能描述:IC XEON 2.4GHZ INT-MPGA RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微处理器 系列:- 标准包装:2 系列:MPC8xx 处理器类型:32-位 MPC8xx PowerQUICC 特点:- 速度:133MHz 电压:3.3V 安装类型:表面贴装 封装/外壳:357-BBGA 供应商设备封装:357-PBGA（25x25） 包装:托盘 |
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