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ST72F321AR Scheda tecnica(PDF) 142 Page - STMicroelectronics

Il numero della parte ST72F321AR
Spiegazioni elettronici  64/44-PIN 8-BIT MCU WITH 32 TO 60K FLASH/ROM, ADC,FIVE TIMERS, SPI, SCI, I2C INTERFACE
PDF  189 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72F321AR Scheda tecnica(HTML) 142 Page - STMicroelectronics

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12.3.3 Auxiliary Voltage Detector (AVD) Thresholds
Subject to general operating conditions for VDD, fCPU, and TA.
1. Data based on characterization results, tested in production for ROM devices only.
12.3.4 External Voltage Detector (EVD) Thresholds
Subject to general operating conditions for VDD, fCPU, and TA.
1. Data based on characterization results, not tested in production.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VIT+(AVD)
1
⇒0 AVDF flag toggle threshold
(VDD rise)
VD level = High in option byte
4.4 1)
4.6
4.9
V
VD level = Med. in option byte
VD level = Low in option byte
3.95 1)
3.4 1)
4.15
3.6
4.41)
3.81)
VIT-(AVD)
0
⇒1 AVDF flag toggle threshold
(VDD fall)
VD level = High in option byte
4.2
4.4
4.65 1)
VD level = Med. in option byte
VD level = Low in option byte
3.751)
3.21)
4.0
3.4
4.2 1)
3.6 1)
Vhys(AVD)
AVD voltage threshold hysteresis
VIT+(AVD)-VIT-(AVD)
200
mV
∆V
IT-
Voltage drop between AVD flag set
and LVD reset activated
VIT-(AVD)-VIT-(LVD)
450
mV
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VIT+(EVD)
1
⇒0 AVDF flag toggle threshold
(VDD rise)
1)
1.15
1.26
1.35
V
VIT-(EVD)
0
⇒1 AVDF flag toggle threshold
(VDD fall)
1)
1.1
1.2
1.3
Vhys(EVD)
EVD voltage threshold hysteresis
VIT+(EVD)-VIT-(EVD)
200
mV



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