ST7LITE1XB datasheet(114/159 Pages) STMICROELECTRONICS

부품명	ST7LITE1XB

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

PDF	159 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	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

ΔV

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

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