参数资料
型号: RPIXP2800BC
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 650 MHz, RISC PROCESSOR, PBGA1356
封装: 37.50 X 37.50 MM, 1 MM PITCH, FCBGA-1356
文件页数: 14/130页
文件大小: 1782K
代理商: RPIXP2800BC
Intel IXP2800 and IXP2850 Network Processors
Electrical Specifications
110
Datasheet
4.4.8.2
AC Parameters
System-level reference points for specified parameters are shown in Figure 15. Corresponding
reference points with respect to the clock edge are shown in Figure 16, Figure 17, and Figure 18.
Table 47. SPI-4 LVTTL DC Thresholds
Symbol
Parameter
Min (V)
Max (V)
V_OH
Output High Voltage
2.4
3.6
V_IH
Input High Voltage
2.0
3.6
V_IL
Input Low Voltage
0.8
V_OL
Output Low Voltage
0.4
Table 48. SPI-4 LVDS Driver DC Specifications
Symbol
Parameter
Min
Max
Voh
Output Voltage High
1375 mV1
1. Output voltage valid when VREFHI = 1.4 V and VREFLO = 1.0 V. The following equations determine the excursions when the
voltage references and Rzq are not held at nominal:
Ioh = 2 * ((VREFHI – VREFLO) / Rzq) / 3 (valid when Rload = Rzq)
Iol = -2 * ((VREFHI – VREFLO) / Rzq) / 3 (valid when Rload = Rzq)
Vol
Output Voltage Low
1025 mV1
Vod 2
2. Guaranteed by design
Output Differential
Voltage
150 mV
250 mV
Vos 2
Output Offset Voltage
1150 mV
1250 mV1
Ro 2
Output Impedance,
Single Ended
40 ohms
140 ohms
Table 49. SPI-4 LVDS Receiver DC Specifications
Symbol
Parameter
Min
Max
Vi
Input Voltage Range
825 mV
1575 mV
Vidth
Input Differential
Threshold
– 100 mV
+ 100 mV
Vhyst 1
1. Guaranteed by design.
Input Differential
Hysteresis
25 mV
Ri 1
Receiver Differential
Input Impedance
80 ohms
120 ohms
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