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AS1923

Quad-Voltage Microprocessor Supervisory Circuit

austriamicrosystems AG 

AS1923

Datasheet - Electrical Characteristics

6 Electrical Characteristics

VIN2 = +1V to +5.5V, Typ values @ VIN2 = +3.0V to +3.3V, TAMB = +25ºC (unless otherwise specified).

Table 3. Electrical Characteristics

Symbol

Parameter 1

Conditions

Min Typ Max Units

Tamb

VIN2

alid IINx

AG t still v VTH

ams nten VTH

co VHYS

l tRD

Technica tRP

Operating Temperature Range

Supply Voltage Range 2, 3

Input Current

Reset Threshold Voltage

Adjustable Threshold

Threshold Voltage

Temperature Coefficient

Threshold Hysteresis

Reset Delay

Reset Active Timeout Period

VINx = Input Threshold Voltage (Input Threshold

Voltage of 1.8, 2.5, or 5V)

VIN2 = Input Threshold Voltage (Input Threshold

Voltage of 3.0 or 3.3V) 4

VINx = 0 to VIN2

(Input Threshold Voltage = +1.23V) 5

VIN1 = 1.5V (AS1923 K/L only)

VINx = -5V (Input Threshold Voltage = -5V)

VINx Decreasing, +5V (-5%) Threshold

VINx Decreasing, +5V (-10%) Threshold

VINx Decreasing, +3.3V (-5%) Threshold

VINx Decreasing, +3.3V (-10%) Threshold

VINx Decreasing, +3.0V (-5%) Threshold

VINx Decreasing, +3.0V (-10%) Threshold

VINx Decreasing, +2.5V (-10%) Threshold

VINx Decreasing, +1.8V (-10%) Threshold

VINx Increasing, -5V (+5%) Threshold

VINx Increasing, -5V (+10%) Threshold

VINx Decreasing

VINx = VTH to (VTH - 50mV),

All Inputs Except -5V, or

VINx = VTH to (VTH + 50mV), -5V Input Only

-40

85 °C

1.0

5.5 V

25 40

55 115

µA

-0.1

0.1

0.4 1.5

-15 -20

4.50 4.63 4.75

4.25 4.38 4.50

3.00 3.08 3.15

2.85 2.93 3.00

2.70 2.78 2.85

V

2.55 2.63 2.70

2.13 2.19 2.25

1.53 1.58 1.62

-4.75 -4.63 -4.50

-4.50 -4.38 -4.25

1.20 1.23 1.26 V

60

ppm/ºC

0.5

%

20

µs

120 200 280 ms

www.austriamicrosystems.com/Supervisors/AS1923

Revision 1.01

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