ST7FOXU0 datasheet(98/123 Pages) STMICROELECTRONICS

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Electrical characteristics

ST7FOXU0

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12.4.2

On-chip peripherals

12.5

Clock and timing characteristics

Subject to general operating conditions for VDD, fOSC, and TA.

12.5.1

Auto Wake Up from Halt oscillator (AWU)

Table 46.

On-chip peripheral characteristics

Symbol

Parameter

Conditions

Typ

Unit

IDD(AT)

12-bit Auto-Reload timer supply current(1)

Data based on a differential IDD measurement between reset configuration (timer stopped) and a timer

running in PWM mode at fcpu= 8 MHz.

fCPU=8 MHz

VDD=5.0 V

µA

IDD(ADC)

ADC supply current when converting(2)

Data based on a differential IDD measurement between reset configuration and continuous A/D

conversions.

fADC=4 MHz

VDD=5.0 V

750

µA

Table 47.

General timings

Symbol

Parameter(1)

Guaranteed by Design. Not tested in production.

Conditions

Min

Typ(2)

Data based on typical application software.

Max

Unit

tc(INST)

Instruction cycle time

fCPU = 8 MHz

tCPU

250

375

1500

tv(IT)

Interrupt reaction time(3)

tv(IT) = ∆tc(INST) + 10

Time measured between interrupt event and interrupt vector fetch.

∆t

c(INST) is the number of tCPU cycles

needed to finish the current instruction execution.

fCPU = 8 MHz

tCPU

1.25

2.75

µs

Table 48.

AWU from Halt characteristics

Symbol

Parameter(1)

Guaranteed by Design. Not tested in production.

Conditions

Min

Typ

Max

Unit

fAWU

AWU Oscillator

Frequency

kHz

tRCSRT

AWU Oscillator startup

time

µs

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