UPSD3422_06 Datasheet, PDF (260/293 Pages) STMicroelectronics – Turbo Plus Series Fast Turbo 8032 MCU with USB and Programmable Logic

AC/DC parameters
uPSD34xx
Figure 97. PLD I_CC / frequency consumption (3V range)
60
V_CC = 3V
50
TURBO ^{ON (100%)}
40
30
20
TURBO ^{ON (25%)}
PT 100%
10
TURBO ^OFF
PT 25%
0
0
5
10
15
20
25
HIGHEST COMPOSITE FREQUENCY AT PLD INPUTS (MHz)
AI03100
Table 149. PSD module example, typ. power calculation at V_CC = 5.0V (turbo mode
off)
Conditions
MCU Clock Frequency = 12MHz
Highest Composite PLD input frequency
(Freq PLD)
= 8MHz
MCU ALE frequency (Freq ALE) = 2MHz
% Flash memory
Access
= 80%
% SRAM access
= 15%
% I/O access
= 5% (no additional power above base)
Operational Modes
% Normal
% Power-down Mode
Number of product terms used
(from fitter report)
= 40%
= 60%
= 45 PT
% of total product
terms
Turbo Mode
= 45/182 = 24.7%
= Off
Calculation (using typical values)
I_CC total
= I_CC(MCUactive) x %MCUactive + I_CC(PSDactive) x %PSDactive + I_PD(pwrdown) x
%pwrdown
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