ST7MC2S4-Auto datasheet(319/371 Pages) STMICROELECTRONICS

319 / 371 page

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Electrical characteristics

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Figure 135. Typical IDD in Slow Wait vs fCPU

12.4.3

Halt and Active Halt modes

12.4.4

Supply and clock managers

The previous current consumption specified for the ST7 functional operating modes over

temperature range does not take into account the clock source current consumption. To get

the total device consumption, the two current values must be added (except for Halt mode).

0.0

0.5

1.0

1.5

2.0

2.5

Fcpu Mhz

Table 194.

Halt and Active Halt modes

Symbol

Parameter

Conditions

Typ Max Unit

IDD

Supply current in Halt mode(1)

All I/O pins in push-pull output mode (when applicable) with a static value at VDD or VSS (no load), PLL and

LVD disabled. Data based on characterization results, tested in production at VDD max. and fCPU max.

VDD = 5.5V

-40°C < TA < +85°C

µA

-40°C < TA < +125°C

Supply current in Active Halt mode(2)

All I/O pins in input mode with a static value at VDD or VSS. Tested in production at VDD max and fCPU max

with clock input OSC1 driven by an external square wave; VDD applied on OSC2 to reduce oscillator

consumption. Consumption may be slightly different with a quartz or resonator.

16 MHz external clock

1.5

Table 195.

Supply and clock managers

Symbol

Parameter

Conditions

Typ

Max

Unit

IDD(LVD) LVD supply current

Halt mode

180

280

µA

IDD(PLL) PLL supply current

VDD = 5V

700

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