STM8L052C6 datasheet(65/103 Pages) STMICROELECTRONICS

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STM8L052C6

Electrical parameters

tWU_HSI(AH)

(9)

(10)

Wakeup time from

Active-halt mode to

Run mode (using HSI)

-4.7

s

tWU_LSI(AH)

(9)

(10)

Wakeup time from

Active-halt mode to

Run mode (using LSI)

150

s

No floating I/O, unless otherwise specified.

RTC enabled. Clock source = LSI

RTC enabled, LCD enabled with external VLCD = 3 V, static duty, division ratio = 256, all pixels active, no LCD connected.

RTC enabled, LCD enabled with external VLCD, 1/4 duty, 1/3 bias, division ratio = 64, all pixels active, no LCD connected.

LCD enabled with internal LCD booster VLCD = 3 V, 1/4 duty, 1/3 bias, division ratio = 64, all pixels active, no LCD

connected.

Oscillator bypassed (LSEBYP = 1 in CLK_ECKCR). When configured for external crystal, the LSE consumption



(IDD LSE) must be added. Refer to Table 29.

RTC enabled. Clock source = LSE.

Oscillator bypassed (LSEBYP = 1 in CLK_ECKCR). When configured for external crystal, the LSE consumption



(IDD LSE) must be added. Refer to Table 29.

Wakeup time until start of interrupt vector fetch.



The first word of interrupt routine is fetched 4 CPU cycles after tWU.

10. ULP=0 or ULP=1 and FWU=1 in the PWR_CSR2 register.

Table 21. Total current consumption and timing in Active-halt mode at VDD = 1.8 V to 3.6 V

Symbol

Parameter

Conditions (1)

Typ

Max

Unit

Table 22. Typical current consumption in Active-halt mode, RTC clocked by LSE

external crystal

Symbol

Parameter

Condition(1)

Typ

Unit

IDD(AH)

(2)

Supply current in Active-halt

mode

VDD = 1.8 V

LSE

1.15

µA

LSE/32(3)

1.05

VDD = 3 V

LSE

1.30

LSE/32(3)

1.20

VDD = 3.6 V

LSE

1.45

LSE/32(3)

1.35

No floating I/O, unless otherwise specified.

Based on measurements on bench with 32.768 kHz external crystal oscillator.

RTC clock is LSE divided by 32.

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