UPSD3354DV-40U6 Datasheet, PDF (244/272 Pages) STMicroelectronics – fast 8032 MCU with programmable logic

AC/DC parameters
UPSD33xx
Table 159. PSD module example, typ. power calculation at V_CC = 5.0 V (Turbo mode Off)
Conditions
I_CC(MCUactive)
I_PD(pwrdown)
I_CC(PSDactive)
= 20 mA
= 250 µA
= I_CC(ac) + I_CC(dc)
= %flash x 2.5 mA/MHz x Freq ALE
+ %SRAM x 1.5 mA/MHz x
Freq ALE
+ % PLD x (from graph
using Freq PLD)
= 0.8 x 2.5 mA/MHz x 2 MHz + 0.15 x 1.5 mA/MHz x 2
MHz + 24 mA
= (4 + 0.45 + 24) mA
= 28.45 mA
t(s) ^{ICC total}
= 20 mA x 40% + 28.45 mA x 40% + 250 µA x 60%
= 8 mA + 11.38 mA + 150 µA
uc ^{= 19.53 mA}
d _{This is the operating power with no Flash memory Erase or Program cycles in progress. Calculation is based on}
Obsolete ^{Product(s) - Obsolete Pro all I/O pins being disconnected and IOUT = 0 mA.}
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Doc ID 9685 Rev 7