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參數(shù)資料
| 型號： | 80960JS |
| 廠商： | Intel Corp. |
| 英文描述： | High Performance 32-bit Embedded 3.3V Microprocessor(3.3V高性能32位嵌入式處理器) |
| 中文描述： | 高性能32位嵌入式微處理器3.3（3.3高性能32位嵌入式處理器） |
| 文件頁數(shù)： | 43/86頁 |
| 文件大?。?/td> | 1257K |
| 代理商： | 80960JS |
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80960JA/JF/JD/JS/JC/JT 3.3 V Microprocessor
Datasheet
43
If the regulator cannot prevent the 2.25 V differential, the addition of the resistor is a simple and
reliable method for limiting current. The resistor can also prevent damage in the case of a power
failure, where the 5 V supply remains on and the 3.3 V supply goes to zero.
4.5
VCCPLL Pin Requirements
To reduce clock skew on the 80960Jx processor, the VCCPLL pin for the Phase Lock Loop (PLL)
circuit is isolated on the pinout. The lowpass filter, as shown in Figure 9, reduces noise induced
clock jitter and its effects on timing relationships in system designs. The 4.7 μF capacitor must be
low ESR solid tantalum; the 0.01 μF capacitor must be of the type X7R and the node connecting
VCCPLL must be as short as possible.
If the voltage on the VCCPLL power supply pin exceeds the V
CC
pin voltage by 0.5 V at any time,
including the power up and power down sequences, excessive currents can permanently damage
on-chip electrostatic discharge (ESD) protection diodes. The damage can accumulate over multiple
episodes.
In actual applications, this problem occurs only when the VCCPLL and V
CC
pins are driven by
separate power supplies or voltage regulators. Applications that use one power supply for
VCCPLL and V
CC
are not typically at risk. Verify that your application does not allow the
VCCPLL voltage to exceed V
CC
by 0.5 V.
The VCCPLL low-pass filter recommendation does not promote this problem.
Table 29. VDIFF Parameters
Symbol
Parameter
Min
Max
Units
Notes
VDIFF
VCC5-V
Difference
2.25
V
VCC5 input should not exceed V
CC
by more than 2.25 V
during power-up and power-down, or during steady-
state operation.
Figure 9. VCCPLL Lowpass Filter
100
10
(80960JS/JC/JT)
V
CC
(Board Plane)
VCCPLL
(On 80960Jx)
(80960JA/JF/JD)
F_CA078A
0.01 μF
4.7 μF
+
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 80960JC | High Performance 32-Bit Embedded 3.3V Microprocessor(3.3V高性能32位嵌入式處理器) |
| 80960KB | Embedded 32-Bit Microprocessor With Integrated Floating-Point Unit(帶有集成的浮點(diǎn)單元的嵌入式32位微處理器) |
| 80960MC | Embedded 32Bit Microprocessor With Integrated Floating_Point Unit And Memory Unit(帶有集成的浮點(diǎn)單元和存儲(chǔ)器管理單元的嵌入式32位微處理器) |
| 80960RM | 80960RM I/O Processor(80960RM I/O 處理器) |
| 80960RN | 80960RN I/O Processor(80960RN I/O 處理器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 80960JT | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:3.3 V EMBEDDED 32-BIT MICROPROCESSOR |
| 80960KA | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:EMBEDDED 32-BIT MICROPROCESSOR |
| 80960KB | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:EMBEDDED 32-BIT MICROPROCESSOR WITH INTEGRATED FLOATING-POINT UNIT |
| 80960MC | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:EMBEDDED 32-BIT MICROPROCESSOR WITH INTEGRATED FLOATING-POINT UNIT AND MEMORY MANAGEMENT UNIT |
| 80960SA | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:EMBEDDED 32-BIT MICROPROCESSOR WITH 16-BIT BURST DATA BUS |
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