STM8AL3L8x datasheet(79/131 Pages) STMICROELECTRONICS

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STM8AL318x STM8AL3L8x

Electrical parameters

117

tWU_HSI(AH)(9)(10)

Wakeup time from

Active-halt mode

to Run mode

(using HSI)

4.70

7.00

μs

tWU_LSI(AH)(9)(10)

Wakeup time from

Active-halt mode

to Run mode

(using LSI)

150.0

μs

1. No floating I/O, unless otherwise specified.

2. Guaranteed by characterization results.

3. RTC enabled. Clock source = LSI

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

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

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

connected.

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

(IDD LSE) must be added. Refer to Table 33

8. RTC enabled. Clock source = LSE

9. 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 25. Total current consumption and timing in Active-halt mode

at VDD = 1.65 V to 3.6 V (continued)

Symbol

Parameter

Conditions(1)

Typ.

Max.(2) Unit

Table 26. 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

1. No floating I/O, unless otherwise specified.

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

3. RTC clock is LSE divided by 32.

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