參數(shù)資料
型號: 5962R0722402VYC
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PQFP256
封裝: QFP-256
文件頁數(shù): 36/155頁
文件大?。?/td> 4139K
代理商: 5962R0722402VYC
130
7703D–AERO–12/09
AT697F PRELIMINARY INFORMATION
PR
ELI
MINA
R
Y
IN
FOR
M
AT
IO
N
This hypothesis corresponds to a capacitor connected to two micro-vias on a PCB.
The filter defined by the self and the decoupling capacitor shall be able to filter the characteristic frequen-
cies of the application. Each frequency to filtre is defined by :
fc
1
2
π LC
-------------------
=
L : the inductance equivalent to the global inductance on the VSS/VDD (VSS/VCC) line.
C : the decoupling capacitance.
For a processor running at 100MHz with a PCI interface at a characteristic frequency of 33MHz and con-
sidering that power supply pins are grouped by multiple of four, the decoupling capacitance to set are :
33nF for 33MHz decoupling
3nF for 100MHz decoupling
Parameter
Description
MAX
C
IN
Standard Input Capacitance
5pF
C
IO
Standard Input/Output Capacitance
5pF
C
INp
PCI Input Capacitance
7pF
C
IOp
PCI Input/Output Capacitance
7pF
Capacitance
Rating
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