ST7L09 datasheet(78/104 Pages) STMICROELECTRONICS

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ST7L05, ST7L09

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13.4 SUPPLY CURRENT CHARACTERISTICS

The following current consumption specified for

the ST7 functional operating modes over tempera-

ture range does not take into account the clock

source current consumption. To get the total de-

vice consumption, the two current values must be

added (except for HALT mode for which the clock

is stopped).

13.4.1 Supply Current

TA = -40 to +105°C, unless otherwise specified

Notes:

1. CPU running with memory access, all I/O pins in input mode with a static value at VDD or VSS (no load), all peripherals

in reset state; clock input (CLKIN) driven by external square wave.

2. All I/O pins in input mode with a static value at VDD or VSS (no load), all peripherals in reset state; clock input (CLKIN)

driven by external square wave.

3. SLOW mode selected with fCPU based on fOSC divided by 32. All I/O pins in input mode with a static value at VDD or

VSS (no load), all peripherals in reset state; clock input (CLKIN) driven by external square wave.

4. SLOW-WAIT mode selected with fCPU based on fOSC divided by 32. All I/O pins in input mode with a static value at

VDD or VSS (no load), all peripherals in reset state; clock input (CLKIN) driven by external square wave.

5. All I/O pins in output mode with a static value at VSS (no load). Data based on characterization results, tested in pro-

duction at VDD max and fCPU max.

Figure 47. Typical IDD in RUN vs fCPU

Figure 48. Typical IDD in SLOW vs fCPU

Figure 49. Typical IDD in WAIT vs fCPU

Figure 50. Typical IDD in SLOW WAIT vs fCPU

Symbol

Parameter

Conditions

Typ

Max

Unit

IDD

Supply current in RUN mode

VDD =5.5V

fCPU = 8 MHz

5.0

7.0

Supply current in WAIT mode

fCPU = 8 MHz

1.7

2.70

Supply current in SLOW mode

fCPU = 250 kHz

0.6

1.0

Supply current in SLOW WAIT mode

fCPU = 250 kHz

0.5

0.9

Supply current in HALT mode5)

-40°C

≤ T

A ≤ +105°C

0.5

µA

Supply current in ACTIVE HALT mode

600 1000

0.0

1.0

2.0

3.0

4.0

5.0

2.4

2.7

3.7

4.5

5.5

Vdd (V)

8MHz

4MHz

1MHz

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

2.4

2.7

3.7

4.5

5.5

Vdd (V)

250kHz

125kHz

62.5kHz

0.0

0.5

1.0

1.5

2.0

2.4

2.7

3.7

4.5

5.5

Vdd (V)

8MHz

4MHz

1MHz

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

2.4

2.7

3.7

4.5

5.5

Vdd (V)

250kHz

125kHz

62.5kHz

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