www.austriamicrosystems.com/Supervisors/AS1907-09 Revision 1.06 4 - 10
AS1907/AS1908/AS1909
Datasheet - Electrical Characteristics
6 Electrical Characteristics
VCC = Full Range, TAMB = -40 to +125ºC (unless otherwise specified). Typ values are at VCC = +3.0V, TAMB = +25ºC.
Table 4. Electrical Characteristics
Parameter Symbol Conditions Min Typ Max Unit
Supply Voltage Range
V
CC
TAMB = 0 to +85ºC
AS1907, AS1908 0.7 3.6
V
AS1909 1.0 3.6
T
AMB = -40 to +85ºC
AS1907, AS1908 0.78 3.6
AS1909 1.2 3.6
T
AMB = -40 to +125ºC 1.2 3.6
Supply Current
1
1. Not valid if VCC = VTH.
Note: All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or
SQC (Statistical Quality Control) methods.
ICC
VCC = 1.8V, no load 2.4 6.0
µA
VCC = 2.5V, no load 2.6 7.0
RESET Threshold Voltage
V
TH
TAMB = +25ºC
V
TH -
0.9%
V
TH
VTH +
0.9%
V
T
AMB = 0ºC to +50°C;
AS1909C17 and AS1909C168 only
VTH -
1.2%
VTH
VTH +
1.2%
V
TAMB = -40 to +125ºC
VTH -
3%
VTH
VTH +
3%
V
V
CC Falling Reset Delay
t
RD
VCC falling at 10V/ms 33 µs
RESET Active
Time-Out Period
t
TP
AS190x-Azz-T 1 1.5 2
msAS190x-Bzz-T 20 30 40
AS190x-Czz-T 100 150 200
RESETN Output Low Voltage;
RESET asserted
(AS1907/AS1909)
V
OL
ISINK = 50µA, VCC ≥ 1.0V 0.4
V
ISINK = 500µA, VCC ≥ 1.8V 0.3
RESETN Output High Voltage;
RESET Not Asserted (AS1907)
VOH
ISOURCE = 200µA, VCC ≥ 1.8V
0.8 x
VCC
V
ISOURCE = 500µA, VCC ≥ 2.7V
0.8 x
VCC
RESET Output Voltage; RESET
Asserted (AS1908)
V
OH
ISOURCE = 1µA, VCC ≥ 1.0V
0.8 x
VCC
V
ISOURCE = 200µA, VCC ≥ 1.8V
0.8 x
VCC
RESET Output Voltage; RESET
Not Asserted (AS1908)
V
OL
ISINK = 500µA, VCC ≥ 1.8V 0.3
V
I
SINK = 1.2mA, VCC ≥ 2.7V 0.3
RESETN Output Leakage
Current; RESETN
Deasserted (AS1909)
ILEAK
VCC > VTH 0.5 µA
