ST7FOXK2 datasheet(190/226 Pages) STMICROELECTRONICS

190 / 226 page

Electrical characteristics

ST7FOXF1, ST7FOXK1, ST7FOXK2

190/226

12.3

Operating conditions

12.3.1

General operating conditions

TA = -40 to +85 °C unless otherwise specified.

12.3.2

Operating conditions with Low Voltage Detector (LVD)

TA = -40 to 85 °C unless otherwise specified.

Table 69.

General operating conditions

Symbol

Parameter

Conditions

Min

Max

Unit

VDD

Supply voltage

fCPU = 8 MHz max.

4.5

5.5

fCPU

CPU clock frequency

4.5 V

≤ V

DD≤5.5 V

up to 8

MHz

Table 70.

Operating characteristics with LVD

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIT+(LVD)

Reset release threshold

(VDD rise)

3.9

4.2

4.5

VIT-(LVD)

Reset generation threshold

(VDD fall)

3.7

4.0

4.3

Vhys

LVD voltage threshold hysteresis

VIT+(LVD)-VIT-(LVD)

150

VtPOR

VDD rise time rate

(1)(2)

Not tested in production. The VDD rise time rate condition is needed to ensure a correct device power-on

and LVD reset release. When the VDD slope is outside these values, the LVD may not release properly the

reset of the MCU.

Use of LVD with capacitive power supply: with this type of power supply, if power cuts occur in the

application, it is recommended to pull VDD down to 0 V to ensure optimum restart conditions. Refer to

circuit example in Figure 89 on page 207.

µs/V

IDD(LVD)

LVD current consumption

VDD = 5 V

140

µA

ST7FOXK2 데이터시트(PDF) 190 Page - STMicroelectronics

ST7FOXK2 데이터시트(HTML) 190 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

데이터시트 다운로드

링크 URL