AS1920 데이터 시트보기 (PDF) - austriamicrosystems AG
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AS1920 Datasheet PDF : 14 Pages
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AS1920/AS1922
Datasheet - Electrical Characteristics
6 Electrical Characteristics
VCC18 = 1.8V, VCC3 = 3V, VCCA = VCC3, TAMB = -40 to +85ºC (unless otherwise specified).
Table 4. Electrical Characteristics
Symbol
Parameter
Conditions
Min Typ Max Unit
VRT18
VRT3
VRTA
VCC3, VCC18
Reset Threshold VCC18
Reset Threshold VCC3
Reset Threshold VCCA
Operating Voltage
1.653 1.683 1.713 V
2.763 2.805 2.847 V
0.982 1.00 1.018 V
RESETN in Correct Logic State
1
3.3 V
IVCC18
IVCC3
IVCCA 1
VCC18 Supply Current
VCC3 Supply Current
VCCA Input Current
VCC18 < VCC3, VCC18 = 1.8V
VCC18 < VCC3, VCC3 = 3V
VCCA = 1V
0.7
2 µA
6.2 15 µA
-15
0
15 nA
IOUT
Open-Drain RESETN
Output Current
Reset Not Asserted, Forced to 0V 2
4
13 µA
ILEAK
Open-Drain RESETN Output
Leakage Current
Reset Not Asserted, RESETN
Forced to 5.5V, TAMB = 25ºC
-0.1
0.1 µA
tRST
Reset Pulse Width
RESETN Low, TAMB = 25ºC 2
140 200 280 ms
VCC18, VCC3, or VCCA <
tUV
VCC Undervoltage
Detect to RESETN
Reset Threshold by > 1% 2
TAMB = 25ºC
130
µs
ISINK = 2.5mA, VCC3 = 3V,
VCC18 = 0V
0.15 0.4
ISINK = 100µA, VCC3 = 1V,
VOL
Output Voltage Low, RESETN
VCC18 = 0V
ISINK = 100µA, VCC3 = 0V,
VCC18 = 1V
0.05 0.3
V
0.05 0.3
ISINK = 100µA, VCC3 = 1V,
VCC18 = 1V
0.05 0.3
VOH
Output Voltage High, RESETN
ISOURCE = 1µA (AS1922-xx)
VCC3 - VCC3 -
1 0.65
V
1. Guaranteed by design.
2. Measured from the time (t1) when the input passes through the input threshold voltage (VRTX) to the time (t2)
when RESETN passes through 1.5V.
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