參數(shù)資料
型號: PSD4235G3-A-15M
廠商: 意法半導(dǎo)體
英文描述: CAP 0.68UF 20V 10% TANT SMD-3216-18 TR-13-PL SN/PB5%
中文描述: Flash在系統(tǒng)可編程外設(shè)的16位微控制器
文件頁數(shù): 66/89頁
文件大小: 703K
代理商: PSD4235G3-A-15M
PSD4235G2
66/89
Table 53. Example of PSD Typical Power Calculation at V
CC
= 5.0 V (with Turbo Mode On)
Conditions
Highest Composite PLD input frequency
(Freq PLD)
= 8 MHz
MCU ALE frequency (Freq ALE)
= 4 MHz
% Flash memory
Access
= 80%
% SRAM access
= 15%
% I/O access
= 5% (no additional power above base)
Operational Modes
% Normal
= 10%
% Power-down Mode
= 90%
Number of product terms used
(from fitter report)
= 45 PT
% of total product terms
= 45/193 = 23.3%
Turbo Mode
= ON
Calculation (using typical values)
I
CC
total
= Ipwrdown x %pwrdown + %normal x (I
CC
(ac) + I
CC
(dc))
= Ipwrdown x %pwrdown + % normal x (%flash x 2.5 mA/MHz x Freq ALE
+ %SRAM x 1.5 mA/MHz x Freq ALE
+ % PLD x 2 mA/MHz x Freq PLD
+ #PT x 400 μA/PT)
= 50 μA x 0.90 + 0.1 x (0.8 x 2.5 mA/MHz x 4 MHz
+ 0.15 x 1.5 mA/MHz x 4 MHz
+ 2 mA/MHz x 8 MHz
+ 45 x 0.4 mA/PT)
= 45 μA + 0.1 x (8 + 0.9 + 16 + 18 mA)
= 45 μA + 0.1 x 42.9
= 45 μA + 4.29 mA
= 4.34 mA
This is the operating power with no Flash memory Program or Erase cycles in progress. Calculation is based on I
OUT
= 0 mA.
相關(guān)PDF資料
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PSD4235G3-A-15MI CAP 0.68UF 20V 10% TANT SMD-3216-18 TR-13-PL SN100%
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