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Número de pieza | S-1411 | |
Descripción | LOW CURRENT CONSUMPTION WATCHDOG TIMER | |
Fabricantes | Seiko Instruments | |
Logotipo | ||
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No Preview Available ! S-1410/1411 Series
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© 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
1 page LOW CURRENT CONSUMPTION WATCHDOG TIMER WITH RESET FUNCTION
Rev.1.0_01
S-1410/1411 Series
Pin Configuration
1. TMSOP-8
Top view
18
27
36
45
Figure 3
___
Table 3 S-1410 Series (Product with W / T pin)
Pin No.
1
Symbol
___
W
/ T*1
Description
Watchdog mode switching pin
2
CPOR
Reset time-out period adjustment pin
3
CWDT
Watchdog time adjustment pin
4
VSS
GND pin
5
WEN
Watchdog enable pin
________
6
WDO
Watchdog output pin
7 WDI Watchdog input pin
8
VDD
Voltage input pin
___
*1. W___ / T pin = "H": Time-out mode
W / T pin = "L": Window mode
Table 4
Pin No.
1
2
3
4
5
6
7
8
___
S-1411 Series (Product without W / T pin)
Symbol
_______
RST
Description
Reset output pin
CPOR
Reset time-out period adjustment pin
CWDT
Watchdog time adjustment pin
VSS
GND pin
WEN
________
WDO
Watchdog enable pin
Watchdog output pin
WDI Watchdog input pin
VDD
Voltage input pin
Seiko Instruments Inc.
5
5 Page LOW CURRENT CONSUMPTION WATCHDOG TIMER WITH RESET FUNCTION
Rev.1.0_01
S-1410/1411 Series
VDD
CPOR
CWDT WDO
WDI
WEN
RST
VSS
A
VDD
CPOR
CWDT WDO
WDI
WEN
RST
A
VSS
Figure 12 Test Circuit 7
VDD
CPOR
CWDT WDO
WDI
WEN
RST
A
VSS
Figure 13 Test Circuit 8
VDD
CPOR
CWDT
WDO
WDI
WEN
W/T
VSS
+
V
Figure 14 Test Circuit 9
VDD
CPOR
CWDT
WDO
WDI
WEN
W/T
VSS
+
V
Figure 15 Test Circuit 10
VDD
CPOR
CWDT
WDO
WDI
WEN
W/T
VSS
A
Figure 16 Test Circuit 11
Figure 17 Test Circuit 12
Seiko Instruments Inc.
11
11 Page |
Páginas | Total 29 Páginas | |
PDF Descargar | [ Datasheet S-1411.PDF ] |
Número de pieza | Descripción | Fabricantes |
S-1410 | LOW CURRENT CONSUMPTION WATCHDOG TIMER | Seiko Instruments |
S-1411 | LOW CURRENT CONSUMPTION WATCHDOG TIMER | Seiko Instruments |
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