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参数资料
| 型号： | BX80532RC2300B |
| 厂商： | INTEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 2300 MHz, MICROPROCESSOR |
| 文件页数： | 42/99页 |
| 文件大小： | 4142K |
| 代理商： | BX80532RC2300B |
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Datasheet
47
System Bus Signal Quality Specifications
3.3.6
Conformance Determination to Overshoot/Undershoot
Specifications
The overshoot/undershoot specifications listed in the following tables specify the allowable
overshoot/undershoot for a single overshoot/undershoot event. However, most systems will have
multiple overshoot and/or undershoot events, and each has its own set of parameters (duration, AF
and magnitude). While each overshoot on its own may meet the overshoot specification, when you
add the total impact of all overshoot events, the system may fail. The following are guidelines to
ensure that a system passes the overshoot and undershoot specifications:.
1. Ensure no signal ever exceeds VCC or –0.25 V
– OR –
2. If only one overshoot/undershoot event magnitude occurs, ensure it meets the over/undershoot
specifications in the following tables
– OR –
3. If multiple overshoots and/or multiple undershoots occur, measure the worst case pulse
duration for each magnitude and compare the results against the AF = 1 specifications. If all of
these worst case overshoot or undershoot events meet the specifications
(measured time < specifications) in the table (where AF=1), then the system passes.
1. Absolute Maximum Overshoot magnitude of 1.80 V must never be exceeded.
2. Absolute Maximum Overshoot is measured relative to VSS, and Pulse Duration of overshoot
is measured relative to VCC.
3. Absolute Maximum Undershoot and Pulse Duration of undershoot is measured relative to
VSS.
4. Ringback below VCC can not be subtracted from overshoots/undershoots.
Lesser undershoot does not allocate longer or larger overshoot.
5. OEMs are strongly encouraged to follow the Intel provided layout guidelines.
6. All values are specified by design characterization.
NOTES:
1. These specifications are measured at the processor core silicon.
2. BCLK period is 10 ns.
Table 26. 1.525V VID Source Synchronous (400 MHz) AGTL+ Signal Group Overshoot/
Undershoot Tolerance
Absolute
Maximum
Overshoot
(V)
Absolute
Maximum
Undershoot
(V)
Pulse
Duration (ns)
AF = 1
Pulse
Duration (ns)
AF = 0.1
Pulse
Duration (ns)
AF = 0.01
Notes 1, 2
1.800
–0.310
0.01
0.15
1.59
1.750
–0.260
0.01
0.43
4.59
1.700
–0.210
0.02
1.22
5.00
1.650
–0.160
0.05
3.56
5.00
1.600
–0.110
0.14
5.00
1.550
–0.06
0.63
5.00
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相关代理商/技术参数 |
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|---|---|
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