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PDF STM6718 Data sheet ( Hoja de datos )
| Número de pieza | STM6718 | |
| Descripción | (STM6717 - STM6720) Dual/Triple Ultra-Low Voltage Supervisors | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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STM6717/6718/6719/6720
STM6777/6778/6779*/6780*
Dual/Triple Ultra-Low Voltage Supervisors
with Push-Button Reset (with Delay Option)
FEATURES SUMMARY
■ PRIMARY SUPPLY (VCC1) MONITOR.
www.DataSheet4U.comFIXED (FACTORY-PROGRAMMED) RESET
THRESHOLDS: 4.63V TO 1.58V
■ SECONDARY SUPPLY (VCC2) MONITOR
(STM6717/18/19/20/77/78).
FIXED (FACTORY-PROGRAMMED) RESET
THRESHOLDS: 3.08V TO 0.79V
■ TERTIARY SUPPLY MONITOR (USING
EXTERNALLY ADJUSTABLE RSTIN):
0.626V INTERNAL REFERENCE
■ RST OUTPUTS (PUSH-PULL OR OPEN
DRAIN); STATE GUARANTEED IF VCC1 OR
VCC2 ≥ 0.8V
■ RESET DELAY TIME (trec) ON POWER-UP:
– 210ms (typ)
■ MANUAL RESET INPUT (MR)
■ OPTIONAL DELAYED MANUAL RESET
INPUT (MRC) WITH EXTERNAL
CAPACITOR (STM6777/78/79/80)
■ LOW SUPPLY CURRENT - 11µA (TYP),
VCC1 = VCC2 = 3.6V
■ OPERATING TEMPERATURE:
–40°C to 85°C (Industrial Grade)
Figure 1. Packages
SOT23-5 (WY)
SOT23-6 (WB)
Table 1. Device Options
Part
Number
Monitored Voltages
VCC1
VCC2 RSTIN
STM6717
✔
✔
STM6718
✔
✔
STM6719
✔
✔
✔
STM6720
✔
✔
✔
STM6777
✔
✔
STM6778
✔
✔
STM6779* ✔
✔
STM6780* ✔
✔
Manual Reset Delayed MR
Input (MR) Pin (MRC)
✔
✔
✔
✔
✔✔
✔✔
✔✔
✔✔
Reset Output (RST)
Active-Low Active-Low
(Push-Pull) (Open Drain)
✔
✔
✔
✔
✔
✔
✔
✔
Package
WY
WY
WB
WB
WB
WB
WB
WB
* Contact local ST sales office for availability.
October 2005
Rev 3.0
1/25
1 page  
STM6717/6718/6719/6720/6777/6778/6779*/6780*
Table 2. Signal Names
MR Push-button Reset Input
MRC
Manual Reset Delay Input
RST
Active-low Reset Output
VCC1
Primary Supply Voltage Input
VCC2
Secondary Supply Voltage Input
RSTIN
www.DataSheet4U.com
VSS
Adjustable Reset Comparator Input
Ground
Figure 6. STM6717/18 SOT23-5 Connections
RST
VSS
MR
1
2
3
5 VCC1
4 VCC2
AI10417
Figure 8. STM6777/78 SOT23-6 Connections
RST
VSS
MR
1
2
3
6 VCC1
5 MRC
4 VCC2
AI10418
Figure 7. STM6719/20 SOT23-6 Connections
RST
VSS
MR
1
2
3
6 VCC1
5 RSTIN
4 VCC2
AI10419
Figure 9. STM6779/80 SOT23-6 Connections
RST
VSS
MR
1
2
3
6 VCC1
5 RSTIN
4 MRC
AI10420
5/25
5 Page 
STM6717/6718/6719/6720/6777/6778/6779*/6780*
Figure 18. Normalized VCC Reset Time-out Period vs. Temperature
1.07
1.05
www.DataSheet4U.com
1.03
1.01
0.99
0.97
–40
–20
0 20 40
Temperature (°C)
60 80
AI11847
Figure 19. Maximum VCC Transient Duration vs. Reset Threshold Overdrive
1000
100
10
1
1 10 100 1000
Reset Threshold Overdrive (mV)
AI11848
11/25
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet STM6718.PDF ] | |
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