TC1784 Datasheet, PDF (88/123 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1784
Electrical ParametersDC Parameters
3) The I_DD decreases typically by 79mA if the f_CPU decreases by 50MHz, at constant T_J
4) The I_DD decreases typically by 38mA if the f_CPU decreases by 50MHz, at constant T_J
5) For operations including the D-Flash the required currents are always lower than the currents for non D-Flash
operation.
6) Relevant for the power supply dimensioning, not for thermal considerations.
7) In case of erase of Program Flash PF, internal flash array loading effects may generate transient current spikes
of up to 15 mA for maximum 5 ms per flash module.
5.2.6.1 Calculating the 1.3 V Current Consumption
The current consumption of the 1.3 V rail compose out of two parts:
• Static current consumption
• Dynamic current consumption
The static current consumption is related to the device temperature T_J and the dynamic
current consumption depends of the configured clocking frequencies and the software
application executed. These two parts needs to be added in order to get the rail current
consumption.
(2)
I0 = 2, 20897
m------A--
C
× e0^{, 02696 × TJ}[C]
(3)
I0
=
10, 68
m------A--
C
× e0^{, 02203 × TJ}[C]
Function 2 defines the typical static current consumption and Function 3 defines the
maximum static current consumption. Both functions are valid for V_DD = 1.326 V.
For the dynamic current consumption using the application pattern and f_LMB = 2 * f_FPI the
function 4 applies:
(4)
IDym
=
0, 77
--m-----A-----
MHz
× fCPU[MHz]
Data Sheet
81
V 1.1.1, 2014-05