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Seiko Instruments Electronic Components Datasheet


S-1411

LOW CURRENT CONSUMPTION WATCHDOG TIMER


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S-1411 pdf
S-1410/1411 Series
www.sii-ic.com
© Seiko Instruments Inc., 2015
LOW CURRENT CONSUMPTION WATCHDOG TIMER
WITH RESET FUNCTION
Rev.1.0_01
The S-1410/1411 Series is a watchdog timer developed using CMOS technology, which can operate with low current
consumption of 3.8 μA typ. The reset function and the low voltage detection function are available.
Features
Detection voltage:
Detection voltage accuracy:
Input voltage:
Hysteresis width:
Current consumption:
Reset time-out period:
Watchdog operation is switchable:
Watchdog operation voltage range:
Watchdog mode switching function*1:
Watchdog input edge is selectable:
Product type is selectable:
Operation temperature range:
Lead-free (Sn 100%), halogen-free
2.0 V to 5.0 V, selectable in 0.1 V step
±1.5%
VDD = 0.9 V to 6.0 V
5% typ.
3.8 μA typ.
14.5 ms typ. (CPOR = 2200 pF)
Enable, Disable
2.5 V to 6.0 V
Time-out mode, window mode
Rising edge, falling edge, both rising and falling edges
S-1410 Series___
________
(Product with W / T pin (Output: WDO pin))
S-1411 Series ___
_______
________
(Product without W / T pin (Output: RST pin, WDO pin))
Ta = 40°C to +105°C
*1. The S-1411 Series is fixed to the window mode.
Applications
Power supply monitoring of microcontroller mounted apparatus and system monitoring
Package
TMSOP-8
Seiko Instruments Inc.
1



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S-1411 pdf
LOW CURRENT CONSUMPTION WATCHDOG TIMER WITH RESET FUNCTION
S-1410/1411 Series
Rev.1.0_01
Block Diagrams
____
1. S-1410 Series (Product with W / T pin)
VDD
WEN
WDI
W/T
Noise
filter
Noise
filter
Noise
filter
CWDT
WDT circuit
VSS
Reference
voltage
circuit
Voltage detection
circuit
CPOR
Figure 1
____
2. S-1411 Series (Product without W / T pin)
CWDT
VDD
WDO
WEN
WDI
Noise
filter
Noise
filter
WDT circuit
RST
WDO
VSS
Reference
voltage
circuit
Voltage detection
circuit
CPOR
Figure 2
2 Seiko Instruments Inc.



Part Number S-1411
Description LOW CURRENT CONSUMPTION WATCHDOG TIMER
Maker Seiko Instruments - Seiko Instruments
Total Page 29 Pages
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