STR910FAM32 datasheet(61/101 Pages) STMICROELECTRONICS

61 / 101 page

STR91xFAx3x, STR91xFAx4x

Electrical characteristics

61/101

7.4

RESET_INn and power-on-reset characteristics

VDDQ = 2.7 - 3.6V, VDD = 1.65 - 2V, TA = -40 / 85 °C unless otherwise specified.

7.5

LVD electrical characteristics

VDDQ = 2.7 - 3.6V, VDD = 1.65 - 2V, TA = -40 / 85 °C unless otherwise specified.

Table 13.

RESET_INn and power-on-reset characteristics

Symbol

Parameter

Test Conditions

Value

Unit

Min(1)

Typ

Max

tRINMIN

RESET_INn Valid Active Low

100

tPOR

Power-On-Reset Condition

duration

VDDQ,VDD ramp

time is less than

10ms: 0V to VDD

tRSO

RESET_OUT Duration

(Watchdog reset)

one PCLK

Data based on bench measurements, not tested in production.

Table 14.

LVD electrical characteristics

Symbol

Parameter

Test

Conditions

Value

Unit

Min

Typ

Max

VDD_LVD+ (1.8V)

LVD threshold during VDD rise

1.43

1.50

1.58

VDD_LVD- (1.8V)

LVD threshold during VDD fall

1.33

1.40

1.47

VDD_BRN (1.8V)

VDD brown out warning threshold

1.65

VDDQ_LVD+ (3.0V) LVD threshold during VDDQ rise

(1)(2)

2.32

2.45

2.57

VDDQ_LVD- (3.0V)

LVD threshold during VDDQ fall

(1)(2)

2.23

2.35

2.46

VDDQ_BRN (3.0V)

VDDQ brown out warning threshold

(1)(2)

2.65

VDDQ_LVD+ (3.3V) LVD threshold during VDDQ rise

(2)(3)

2.61

2.75

2.89

VDDQ_LVD- (3.3V)

LVD threshold during VDDQ fall

(2)(3)

2.52

2.65

2.78

VDDQ_BRN (3.3V)

VDDQ brown out warning threshold

(2)(3)

2.95

For VDDQ I/O voltage operating at 2.7 - 3.3V.

Selection of VDDQ operation range is made using configuration software from ST, or IDE from 3rd parties. The default

condition is VDDQ=2.7V - 3.3V.

For VDDQ I/O voltage operating at 3.0 - 3.6V.

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