ST7LITEUS2 datasheet(96/136 Pages) STMICROELECTRONICS

96 / 136 page

Obsolete

Product(s)

- Obsolete

Product(s)

Obsolete

Product(s)

- Obsolete

Product(s)

Electrical characteristics

ST7LITEUS2, ST7LITEUS5

96/136

12.3.3

Auxiliary voltage detector (AVD) thresholds

TA = −40 to 125°C, unless otherwise specified.

12.3.4

Internal RC oscillator

To improve clock stability and frequency accuracy, it is recommended to place a decoupling

capacitor, typically 100 nF, between the VDD and VSS pins as close as possible to the ST7

device.

Internal RC oscillator calibrated at 5.0 V

The ST7 internal clock can be supplied by an internal RC oscillator (selectable by option

byte).

Table 48.

Operating characteristics with AVD(1)

Refer to Section : Monitoring the VDD main supply.

Symbol

Parameter

Conditions

Min

(2)

Not tested in production, guaranteed by characterization.

Typ

(2)

Max

(2)

Unit

VIT+(AVD)

1 => 0 AVDF flag toggle threshold

(VDD rise)

High threshold

Med. threshold

Low threshold

4.0

3.4

2.6

4.4

3.7

2.9

4.8

4.1

3.2

VIT-(AVD)

0 => 1 AVDF flag toggle threshold

(VDD fall)

High threshold

Med. threshold

Low threshold

3.9

3.3

2.5

4.3

3.6

2.8

4.7

4.0

3.1

Vhys

AVD voltage threshold hysteresis

VIT+(AVD)-VIT-(AVD)

150

Table 49.

Voltage drop between AVD flag set and LVD reset generation

Parameter

Min (1)

Not tested in production, guaranteed by characterization.

Typ (1)

Max (1)

Unit

AVD med. threshold - AVD low. threshold

800

850

950

AVD high. threshold - AVD low threshold

1400

1450

1550

AVD high. threshold - AVD med. threshold

600

650

750

AVD low threshold - LVD low threshold

100

200

250

AVD med. threshold - LVD low threshold

950

1050

1150

AVD med. threshold - LVD med. threshold

250

300

400

AVD high. threshold - LVD low threshold

1600

1700

1800

AVD high. threshold - LVD med. threshold

900

1000

1050

Obsolete

Product(s)

- Obsolete

Product(s)

ST7LITEUS2 bảng dữ liệu(PDF) 96 Page - STMicroelectronics

ST7LITEUS2 bảng dữ liệu(HTML) 96 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

bảng dữ liệu tải về

Link URL