ST7LITE1XB datasheet(114/157 Pages) STMICROELECTRONICS

部件名	ST7LITE1XB

功能描述	8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI

PDF	157 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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ST7LITE1xB

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13.3.4 Auxiliary Voltage Detector (AVD) Thresholds

TA = -40 to 125°C, unless otherwise specified

13.3.5 Internal RC Oscillator and PLL

The ST7 internal clock can be supplied by an internal RC oscillator and PLL (selectable by option byte).

Symbol

Parameter

Conditions

Typ

Unit

VIT+(AVD)

1=>0 AVDF flag toggle threshold

(VDD rise)

High Threshold

Med. Threshold

Low Threshold

4.50

4.00

3.35

VIT-(AVD)

0=>1 AVDF flag toggle threshold

(VDD fall)

High Threshold

Med. Threshold

Low Threshold

4.40

3.85

3.20

Vhys

AVD voltage threshold hysteresis

VIT+(AVD)-VIT-(AVD)

170

∆V

IT-

Voltage drop between AVD flag set and

LVD reset activation

VDD fall

0.15

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDD(RC)

Internal RC Oscillator operating voltage

Refer to operating range

of VDD with TA, section

13.3.1 on page 112

2.7

5.5

VDD(x4PLL) x4 PLL operating voltage

2.7

3.7

VDD(x8PLL) x8 PLL operating voltage

3.3

5.5

tSTARTUP

PLL Startup time

PLL

input

clock

(fPLL)

cycles

ST7LITE1XB 数据表(PDF) 114 Page - STMicroelectronics

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