ams AS1914 Dual-voltage microprocessor supervisory circuits with manual reset and watchdog Datasheet

AS1910 - AS1915
D a ta S he e t
D u a l - Vo l ta g e M i c r o p r o c e s s o r S u p e r v i s o r y C i r c u i ts
w i t h M a n u a l R e s e t a n d Wa t c h d o g
1 General Description
2 Key Features
The AS1910 - AS1915 microprocessor supervisory circuits were designed to generate a reset when one of the
two monitored supply voltages falls below a factorytrimmed threshold, and to maintain the reset for a minimum timeout period when both supplies are above their
reset thresholds. Guaranteed to be in the correct state
for VCC higher than +1.0V, these devices are ideal for
multiple-voltage systems with strict monitoring requirements.
The AS1913/AS1914/AS1915 feature factory-trimmed
thresholds to monitor a primary voltage between 1.8 and
3.6V, and a secondary voltage between 0.9 and 2.5V.
For the AS1910/AS1911/AS1912, a secondary monitoring voltage can be user-adjusted via an external resistor
divider down to 0.6V.
!
Primary VCC Supervisory Range: +1.8 to +3.6V
!
Secondary VCC Supervisory Range: +0.9 to +2.5V
(AS1913/AS1914/AS1915)
!
User-Adjustable Threshold Down to +0.63V
(AS1910/AS1911/AS1912)
!
Guaranteed Reset Valid Down to VCC = +1.0V
!
Reset Timeout Delay: 215ms
!
Manual Reset Input
!
Three Reset Output Types
- Active-High Push/Pull
- Active-Low Push/Pull
- Active-Low Open-Drain
!
Watchdog Timeout Period: 1.5s
!
Immune to Fast Negative VCC Transients
!
External Components Not Required
!
Operating Temperature Range: -40 to +125°C
!
6-pin SOT23 Package
The devices are available with the reset output types
listed in Table 1.
Table 1. Standard Products
Model
Reset Output Type
AS1910/AS1913
Active-Low Push/Pull
AS1911/AS1914
Active-High Push/Pull
AS1912/AS1915
Active-Low Open-Drain
The AS1910 - AS1915 include a manual-reset input for
systems that never fully power down the microprocessor. Additionally, these devices feature a watchdog timer
to help ensure that the processor is operating within
proper code boundaries.
3 Applications
The AS1910 - AS1915 are available in a 6-pin SOT23
package.
The devices are ideal for portable and battery-powered
systems, embedded controllers, intelligent instruments,
automotive systems, critical CPU monitoring, and any
multi-supply application.
Figure 1. Typical Application Diagram
VCC
I/O Supply
6
VCC
VCC2
5
VCC2
Core
Supply
AS1913/
AS1915
3
External
Reset
RESETN
RESETN
4
MRN
WDI
GND
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CPU
1
GND
I/O
2
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AS1910 - AS1915
Data Sheet - P i n o u t
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
RESETN/RESET 1
GND 2
6 VCC
AS1910 AS1915
5 RESETIN/VCC2
MRN 3
4 WDI
Pin Descriptions
Table 2. Pin Descriptions
Pin
Number
1
Pin
Name
Active-Low Reset Output (AS1910, AS1912, AS1913, AS1915). The RESETN signal
toggles from high to low when VCC, VCC2, or RESETIN input drops below the factory-trimmed
RESETN reset threshold (see Table 4 on page 4), or MRN is pulled low, or the watchdog triggers a
reset. This output signal remains low for the reset timeout period after all supervised voltages
exceed their reset threshold, or MRN goes low to high, or the watchdog triggers a reset.
RESET
2
3
4
5
6
Description
Active-High Reset Output (AS1911, AS1914). The RESET signal toggles from low to high
when VCC, VCC2, or RESETIN input drops below the factory-trimmed reset threshold (see
Table 4 on page 4), or MRN is pulled low, or the watchdog triggers a reset. This output signal
remains high for the reset timeout period (see tRP on page 5) after all supervised voltages
exceed their reset threshold, or MRN goes low to high, or the watchdog triggers a reset.
GND
Ground
MRN
Active-Low Manual Reset Input. Pulling this pin low asserts a reset. This pin is connected
to the internal 50kΩ pullup to VCC. This reset remains active as long as MRN is low and for
the reset timeout period (see tRP on page 5) after MRN goes high.
Note: If the manual reset feature is not used, this pin should be unconnected or connected
to VCC.
WDI
Watchdog Input. If WDI remains high or low for longer than the watchdog timeout period
(see tWD on page 6), the internal watchdog timer period expires and a reset is triggered for
the reset timeout period (see tRP on page 5). The internal watchdog timer clears whenever a
reset is a asserted or when WDI senses a rising or falling edge.
Note: To disable the watchdog feature, this pin must be unconnected or connected to a tristate buffer output.
User-Adjustable Supervised Voltage Input (AS1910/AS1911/AS1912). This highRESETIN impedance pin serves as the input to the internal reset comparator. Connect this pin to an
external resistor-divider network to set the reset threshold voltage (down to 0.63V).
VCC2
Primary Supervised Voltage Input (AS1913/AS1914/AS1915). This pin serves as the
secondary supervised voltage input.
VCC
Primary Supervised Voltage Input. This pin serves as the primary supervised voltage input.
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AS1910 - AS1915
Data Sheet - A b s o l u t e M a x i m u m R a t i n g s
5 Absolute Maximum Ratings
Stresses beyond those listed in Table 3 may cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those indicated in Section 5 Electrical
Characteristics on page 3 is not implied. Exposure to absolute maximum rating conditions for extended periods may
affect device reliability.
Table 3. Absolute Maximum Ratings
Parameter
Min
Max
Units
VCC, VCC2 to GND
-0.3
+5.0
V
Open-Drain RESETN
-0.3
+7.0
V
Push/Pull RESET, RESETN
-0.3
VCC +
0.3
V
MRN, WDI, RESETIN to GND
-0.3
VCC +
0.3
V
Input Current (VCC)
20
mA
Output Current (RESET, RESETN)
20
mA
Continuous Power Dissipation
(TAMB = +70ºC)
696
mW
-40
+125
ºC
+150
ºC
-65
+150
ºC
Operating Temperature Range
Junction Temperature
Storage Temperature Range
Package Body Temperature
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+260
ºC
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Comments
Derate 8.7mW/ºC above +70ºC
The reflow peak soldering temperature (body
temperature) specified is in accordance with
IPC/JEDEC J-STD-020C “Moisture/Reflow
Sensitivity Classification for Non-Hermetic Solid
State Surface Mount Devices”.
The lead finish for Pb-free leaded packages is
matte tin (100% Sn).
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AS1910 - AS1915
Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s
6 Electrical Characteristics
VCC = +2.7 to +3.6V for AS19xx-T/S/R, VCC = +2.1 to +2.75V for AS19xx- Z/Y, VCC = +1.53 to +2.0V for AS19xx-W/V;
TAMB = -40 to +125ºC (unless otherwise specified). Typ values @ TAMB = +25°C.
Table 4. Electrical Characteristics
Symbol
Parameter
1
VCC
Operating Voltage Range
ICC
VCC Supply Current
(MRN and WDI Not Connected)
ICC2
VCC2 Supply Current
Conditions
Min
TAMB = 0 to +85ºC
1.0
3.6
TAMB = -40 to +125ºC
1.2
3.6
VCC = +3.6V, No Load,
TAMB = -40ºC to +85ºC
2
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
VTH2
VCC2 Reset Threshold
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
TAMB = -40 to +85ºC
TAMB = -40 to +125ºC
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AS19xx-S
AS19xx-R
AS19xx-Z
AS19xx-Y
AS19xx-W
AS19xx-V
AS19xx-Z
AS19xx-Y
AS19xx-W
AS19xx-V
AS19xx-I
AS19xx-H
AS19xx-G
AS19xx-F
AS19xx-E
AS19xx-D
V
µA
VCC2 = +2.5V
AS19xx-T
Units
13
21
TAMB = -40 to +85ºC
VCC Reset Threshold
(VCC Falling)
5.8
Max
VCC = +3.6V, No Load,
TAMB = -40 to +125ºC
TAMB = -40 to +125ºC
VTH
Typ
2.994
3.08
2.972
2.848
2.93
2.63
2.32
2.19
V
2.243
2.260
1.67
1.612
1.536
2.376
2.394
2.113
1.623
2.693
2.714
2.239
2.129
3.000
3.024
2.538
2.255
3.154
3.179
2.827
2.556
µA
1.710
1.723
1.58
1.525
1.618
1.631
2.237 2.313 2.387
2.232
2.394
2.116 2.188 2.258
2.111
2.265
1.610 1.665 1.718
1.607
1.723
1.523 1.575 1.625
1.520
1.630
1.342 1.388 1.432
1.339
1.437
1.270 1.313 1.355
1.267
1.073
1.359
1.11
1.071
1.015
1.013
V
1.146
1.149
1.05
1.084
1.087
0.806 0.833 0.860
0.804
0.862
0.762 0.788 0.813
0.760
0.816
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AS1910 - AS1915
Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s
Table 4. Electrical Characteristics (Continued)
Symbol
VRESETINTH
Parameter
1
Conditions
Min
VOL
VOH
ILKG
VOH
VOL
Units
60
ppm/
ºC
Reset Threshold Hysteresis
8x
VTH
mV
VRESETINTH Falling, TAMB = 0 to +85ºC
RESETIN Threshold
RESETIN Input Current
TAMB = -40 to +125ºC
0.615 0.630 0.645
0.61
0.65
8x
VTH
2
V
mV
TAMB = -40 to +85ºC
-25
+25
TAMB = -40 to +125ºC
-100
+100
nA
VCC to Reset
Output Delay
VCC = VTH to (VTH - 100mV)
55
µs
RESETIN to Reset
Output Delay
VRESETIN = VRESETINTH to
(VRESETINTH - 30mV)
45
µs
tRD
tRP
Max
Reset Threshold
Temperature Coefficient
RESETIN Hysteresis
IRESETIN
Typ
Reset Timeout Period
RESETN Output Low
(Push/Pull or Open-Drain)
RESETN Output High
(Push/Pull Only)
Open-Drain RESETN Output
Leakage Current
RESET Output High
(Push/Pull Only)
RESET Output Low
(Push/Pull Only)
TAMB = -40 to +85ºC
140
TAMB = -40 to +125ºC
100
215
280
320
VCC ≥ 1.0V, ISINK = 50µA,
Reset Asserted, TAMB = 0 to +85ºC
0.3
VCC ≥ 1.2V, ISINK = 100µA, Reset
Asserted
0.3
VCC ≥ 2.55V, ISINK = 1.2mA,
Reset Asserted
0.3
VCC ≥ 3.3V, ISINK = 3.2mA,
Reset Asserted
0.4
ms
V
VCC ≥ 1.8V, ISOURCE = 200µA,
Reset Not Asserted
0.8 x
VCC
VCC ≥ 3.15V, ISOURCE = 500µA,
Reset Not Asserted
0.8 x
VCC
VCC ≥ 3.3V, ISOURCE = 800µA,
Reset Not Asserted
0.8 x
VCC
V
RESETN Not Asserted
1.0
TAMB = +25ºC
0.2
VCC ≥ 1.0V, ISOURCE = 1µA,
Reset Asserted, TAMB = 0 to +85ºC
0.8 x
VCC
VCC ≥ 1.50V, ISOURCE = 100µA,
Reset Asserted
0.8 x
VCC
VCC ≥ 2.55V, ISOURCE = 500µA,
Reset Asserted
0.8 x
VCC
VCC ≥ 3.3V, ISOURCE = 800µA,
Reset Asserted
0.8 x
VCC
µA
V
VCC ≥ 1.8V, ISINK = 500µA,
Reset Asserted
0.3
VCC ≥ 3.15V, ISINK = 1.2mA,
Reset Asserted
0.3
VCC ≥ 3.3V, ISINK = 3.2mA,
Reset Asserted
0.4
V
Manual Reset Input
0.3 x
VCC
VIL
MRN Input voltage
0.7 x
VCC
VIH
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AS1910 - AS1915
Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s
Table 4. Electrical Characteristics (Continued)
Symbol
Parameter
1
Conditions
MRN Minimum Input Pulse
Min
Typ
Max
1
MRN Transient Rejection
µs
90
MRN to Reset Delay
ns
130
MRN Pullup Resistance
Units
ns
25
50
75
TAMB = -40 to +85ºC
1.12
1.5
2.4
TAMB = -40 to +125ºC
0.80
kΩ
Watchdog Input
tWD
tWDI
Watchdog Timeout Period
WDI Pulse Width
2
2.60
20
ns
0.3 x
VCC
VIL
WDI Input Voltage
0.7 x
VCC
VIH
IWDI
WDI Input Current
WDI = VCC, Time Average
WDI = 0, Time Average
80
-20
s
-11
160
V
µA
1. Over-temperature limits are guaranteed by design and not production tested. Devices tested at +25ºC.
2. Guaranteed by design and not production tested.
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AS1910 - AS1915
Data Sheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s
7 Typical Operating Characteristics
TAMB = +25ºC (unless otherwise specified).
Figure 3. Normalized Reset Threshold Delay vs.
Temperature
Figure 4. VOUT vs. VCC; VCC2 = 2.50V, VTH = 1.58V,
Active-Low (Typ)
1.04
Output Voltage (V)e
Reset Threshold (V) e
1.06
1.02
1
0.98
0.96
0.94
-40 -20
0
20
40
60
80
5.50
5.00
4.50
4.00
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.00
-0.50
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
100 120
VCC (V)
Temperature (°C)
Figure 5. Reset Timeout Period vs. Temperature
Figure 6. Supply Current vs. Temperature
10
240
VCC Supply Current (µA) e
Reset Timeout Periode (ms)
250
230
220
210
200
190
180
170
160
9
8
7
6
VCC = 1.58V V Version
5
VCC = 3.08V T Version
4
3
150
-40 -20
0
20
40
60
-50
80 100 120
-25
0
25
50
75
100 125
Temperature (°C)
Temperature (°C)
Figure 7. VOH vs. ISOURCE; VCC = 3.2V
Figure 8. VOL vs. ISINK; VCC = 3.2V
0.5
3.25
0.45
3.2
0.35
3.1
0.3
VOUT (V) e
VOUT (V) ]
0.4
3.15
3.05
3
0.25
0.2
0.15
0.1
2.95
0.05
2.9
0
0
0.2
0.4
0.6
0.8
1
1.2
0
ISOURCE (mA)
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1
2
3
4
5
6
7
ISINK (mA)
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AS1910 - AS1915
Data Sheet - D e t a i l e d D e s c r i p t i o n
8 Detailed Description
The AS1910 - AS1915 supervisory circuits were designed to generate a reset when one of the two monitored supply
voltages falls below its factory-trimmed trip threshold (see VTH on page 4 and VTH2 on page 4), and to maintain the
reset for a minimum timeout period (see tRP on page 5) after all supplies have stabilized.
The integrated watchdog timer (see Watchdog Input on page 10) helps mitigate against bad programming code or
clock signals, and/or poor peripheral response. An active-low manual reset input (see Manual Reset Input on page 10)
allows for an externally activated system reset.
RESET/RESETN
Whenever one of the monitored voltages falls below its reset threshold, the RESET output (AS1910, AS1912, AS1913,
AS1915) asserts low or the RESETN output (AS1911, AS1914) asserts high. Once all monitored voltages have stabilized, an internal timer keeps the reset asserted for the reset timeout period (tRP). After the tRP period, the RESET or
RESETN output return to their original state (see Figure 10).
Figure 9. Functional Diagram of VCC Supervisory Application
6
AS1913/AS1914/AS1915
VCC
1
Reset Timeout
Delay Generator
+
–
RESETN/
RESET
1.26V
0.63V
5
VCC2
VCC
3
MRN
4
Watchdog Transition
Detector
WDI
Watchdog
Timer
2
GND
Figure 10. Reset Timing Diagram
VCC
1V
VTH
VTH
1V
RESETN
tRP
tRD
RESET
GND
tRP
tRD
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AS1910 - AS1915
Data Sheet - D e t a i l e d D e s c r i p t i o n
Figure 11. Functional Diagram of RESETIN Supervisory Application
6
AS1910/AS1911/AS1912
VCC
Reset Timeout
Delay Generator
+
–
1
RESETN/
RESET
1.26V
0.63V
5
VCC
RESETIN
3
MRN
4
WDI
Watchdog Transition
Detector
Watchdog
Timer
2
GND
RESETIN
The AS1910/AS1911/AS1912 feature a user-adjustable supervisory voltage input (RESETIN). The threshold voltage
for RESETIN is between 0.61 and 0.65V (0.63 typ).
Figure 12. Voltage Monitoring Circuit
VMONITOR
R1
5
R2
RESETIN
AS1910/
AS1911/
AS1912
VCC ≥ VRESETIN
To monitor a voltage higher than 0.63V, connect a resistor divider network to the circuit as shown in Figure 12. For the
circuit shown in Figure 12, the threshold at VMONITOR is:
VMONITOR_TRIP = 0.63V [(R1 + R2)/R2]
(EQ 1)
Note: Since RESETIN is powered by VCC, VRESETIN must not be larger than VCC.
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AS1910 - AS1915
Data Sheet - D e t a i l e d D e s c r i p t i o n
Watchdog Input
The integrated watchdog feature can be used to monitor processor activity via pin WDI, and can detect pulses as short
as 50ns. The watchdog requires that the processor toggle the watchdog logic input at regular intervals, within a specified minimum timeout period (1.5s, typ). A reset is asserted for the reset timeout period. As long as reset is asserted,
the timer remains cleared and is not incremented. When reset is deasserted, the watchdog timer starts counting
(Figure 11).
Note: The watchdog timer can be cleared with a reset pulse or by toggling WDI.
Figure 13. Watchdog Timing Relationship
VCC
RESETN
tRST
tRP
tWD
tRP
WDI
The RESET signal is the inverse of the RESETN signal.
The watchdog is internally driven low during most (87.5%) of the watchdog timeout period (see tWD on page 6) and
high for the rest of the watchdog timeout period. When pin WDI is left unconnected, this internal driver clears the
watchdog timer every 1.4s. When WDI is tri-stated or is not connected, the maximum allowable leakage current is
10µA and the maximum allowable load capacitance is 200pF.
Note: The watchdog function can be disabled by leaving pin WDI unconnected or connecting it to a tri-state output
buffer.
Manual Reset Input
The active-low pin MRN is used to force a manual reset. This input can be driven by CMOS logic levels or with opendrain collector outputs.
Pulling MRN low asserts a reset which will remain asserted as long as MRN is kept low, and for the timeout period (see
tRP on page 5) after MRN goes high (140ms min). The manual reset circuitry has an internal 50kΩ pullup resistor, thus
it can be left open if not used.
To create a manual-reset circuit, connect a normally open momentary switch from pin MRN to GND (see Figure 1 on
page 1); external debounce circuitry is not required in this configuration.
If MRN is driven via long cables or the device is used in a noisy environment, a 0.1µF capacitor between pin MRN and
GND will provide additional noise immunity.
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AS1910 - AS1915
Data Sheet - A p p l i c a t i o n I n f o r m a t i o n
9 Application Information
Watchdog Input Current
The watchdog input is driven through an internal buffer and an internal series resistor from the watchdog timer (see
Figure 11 on page 9). When pin WDI is left unconnected (watchdog disabled), the watchdog timer is serviced within the
watchdog timeout period (see tWD on page 6) by a low-high-low pulse from the counter chain. For minimum watchdog
input current (minimum overall power consumption), pull WDI low for most of the watchdog timeout period, pulsing it
low-high-low once within the first 7/8 (87.5%) of the watchdog timeout period to reset the watchdog timer.
Note: If WDI is externally driven high for the majority of the timeout period, up to 160µA can flow into pin WDI.
Interfacing to Bi-Directional CPU Reset Pins
Since the reset outputs of the AS1912 and AS1915 are open drain, these devices interface easily with processors that
have bi-directional reset pins. Connecting the processor reset output directly to the AS1912/AS1915 RESETN pin with
a single pullup resistor (see Figure 14) allows the AS1912/AS1912 to assert a reset.
Figure 14. AS1912 or AS1915 RESETN-to-CPU Bi-Directional Reset Pin
VCC
VCC 6
VCC
1
CPU
RESETN
RESETN
AS1912/
AS1915
Reset
Generator
GND
GND
2
Fast Negative-Going Transients
Fast, negative-going VCC transients normally do not require the CPU to be shutdown. The AS1910 - AS1915 are virtually immune to such transients. Resets are issued to the CPU during power-up, powerdown, and brownout conditions.
Note: VCC transients that go 100mV below the reset threshold and last ≤ 55µs typically will not assert a reset pulse.
Valid Reset to VCC = 0
The AS1910 - AS1915 are guaranteed to operate properly down to VCC = 1V. For applications requiring valid reset levels down to VCC = 0, a pulldown resistor to active-low outputs (push/pull only) and a pullup resistor to active-high outputs (push/pull only) will ensure that the reset line is valid during the interval where the reset output can no longer sink
or source current.
Watchdog Tips
Careful consideration should be taken when implementing the AS1910 - AS1915 watchdog feature.
One method of supervising software code execution is to set/reset the watchdog input at different places in the code,
rather than pulsing the watchdog input high-low-high or low-high-low. This method avoids a loop condition in which the
watchdog timer would continue to be reset inside the loop, preventing the watchdog from ever timing out.
Figure 15 shows a flowchart where the input/output driving the watchdog is set high at the beginning of the routine, set
low at the beginning of every subroutine, then set high again when the routine returns to the beginning. If the routine
should hang in a subroutine, the problem would quickly be corrected, since the I/O is continually set low and the watchdog timer is allowed to time out, causing a reset or interrupt to be issued (see Watchdog Input Current on page 11).
This method results in higher averaged WDI input current over time than a case where WDI is held low for the majority
(87.5%) of the timeout period and periodically pulsing it low-high-low.
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AS1910 - AS1915
Data Sheet - A p p l i c a t i o n I n f o r m a t i o n
Figure 15. Example Watchdog Programming Flowchart
Start
Set WDI
High
Program
Code
Subroutine or
Program Loop
Set WDI Low
Return
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AS1910 - AS1915
Data Sheet - P a c k a g e D r a w i n g s a n d M a r k i n g s
10 Package Drawings and Markings
The devices are available in a 6-pin SOT23 package.
Figure 16. 6-pin SOT23 Package
Notes:
1.
2.
3.
4.
5.
6.
All dimensions are in millimeters.
Foot length measured at intercept point between datum A and lead surface.
Package outline inclusive of mold flash 7 metal burr.
Package outline inclusive of solder plating.
Compliant with EIAJ SC74A.
PKG ST 0004 Rev A supersedes SOT23-D-2005 Rev C.
Symbol
A
A1
A2
b
C
D
E
E1
L
e
e1
α
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Min
0.90
0.00
0.90
0.30
0.09
2.80
2.60
1.50
0.30
Max
1.45
0.15
1.30
0.50
0.20
3.05
3.00
1.75
0.55
0.95REF
1.90REF
0º
Revision 1.00
8º
13 - 15
AS1910 - AS1915
Data Sheet - O r d e r i n g I n f o r m a t i o n
11 Ordering Information
The devices are available as the standard products shown in Table 5.
Table 5. Ordering Information
Model
Marking
Reset Output Type
Thresholds
Delivery Form
Package
AS1910S-T
ASH3
Active-Low Push/Pull
2.93V, Adjustable
Tape and Reel
6-pin SOT23
AS1910R-T
ASH4
Active-Low Push/Pull
2.63V, Adjustable
Tape and Reel
6-pin SOT23
AS1910Z-T
ASH5
Active-Low Push/Pull
2.32V, Adjustable
Tape and Reel
6-pin SOT23
AS1910V-T
ASH6
Active-Low Push/Pull
1.58V, Adjustable
Tape and Reel
6-pin SOT23
AS1911S-T
ASH7
Active High Push/Pull
2.93V, Adjustable
Tape and Reel
6-pin SOT23
AS1911R-T
ASH8
Active High Push/Pull
2.63V, Adjustable
Tape and Reel
6-pin SOT23
AS1911Z-T
ASH9
Active High Push/Pull
2.32V, Adjustable
Tape and Reel
6-pin SOT23
AS1911V-T
ASIA
Active High Push/Pull
1.58V, Adjustable
Tape and Reel
6-pin SOT23
AS1912S-T
ASIB
Open Drain
2.93V, Adjustable
Tape and Reel
6-pin SOT23
AS1912R-T
ASIC
Open Drain
2.63V, Adjustable
Tape and Reel
6-pin SOT23
AS1912Z-T
ASID
Open Drain
2.32V, Adjustable
Tape and Reel
6-pin SOT23
AS1912V-T
ASIE
Open Drain
1.58V, Adjustable
Tape and Reel
6-pin SOT23
AS1913TZ-T
ASIF
Active-Low Push/Pull
3.08V, 2.313V
Tape and Reel
6-pin SOT23
AS1913SF-T
ASIG
Active-Low Push/Pull
2.93V,1.05V
Tape and Reel
6-pin SOT23
AS1913VD-T
ASIH
Active-Low Push/Pull
1.58V, 0.788V
Tape and Reel
6-pin SOT23
AS1914TZ-T
ASII
Active High Push/Pull
3.08V, 2.313V
Tape and Reel
6-pin SOT23
AS1914SF-T
ASIJ
Active High Push/Pull
2.93V,1.05V
Tape and Reel
6-pin SOT23
AS1914VD-T
ASIK
Active High Push/Pull
1.58V, 0.788V
Tape and Reel
6-pin SOT23
AS1915TZ-T
ASIL
Open-Drain
3.08V, 2.313V
Tape and Reel
6-pin SOT23
AS1915SF-T
ASIM
Open-Drain
2.93V,1.05V
Tape and Reel
6-pin SOT23
AS1915VD-T
ASIN
Open-Drain
1.58V, 0.788V
Tape and Reel
6-pin SOT23
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Revision 1.00
14 - 15
AS1910 - AS1915
Data Sheet
Copyrights
Copyright © 1997-2007, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe.
Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.
All products and companies mentioned are trademarks or registered trademarks of their respective companies.
Disclaimer
Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing
in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding
the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior
to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information.
This product is intended for use in normal commercial applications. Applications requiring extended temperature
range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or lifesustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for
each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard
production flow, such as test flow or test location.
The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However,
austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to
personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or
consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of
austriamicrosystems AG rendering of technical or other services.
Contact Information
Headquarters
austriamicrosystems AG
A-8141 Schloss Premstaetten, Austria
Tel: +43 (0) 3136 500 0
Fax: +43 (0) 3136 525 01
For Sales Offices, Distributors and Representatives, please visit:
http://www.austriamicrosystems.com/contact
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Revision 1.00
15 - 15
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