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SR1PARU

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21
DocID026048 Rev 2 7/21
SR1 Typical application diagrams
21
4 Typical application diagrams
Figure 4. Typical application diagram - input, output and SR1 device in one voltage
domain
Figure 5. Typical application diagram - SR1 device in a different voltage domain than
input and output
1. Open-drain RST output type and fixed SR input logic threshold allows to use the device in different voltage
domains. To prevent entering test mode by creating a condition V(SR) > V
CC
+ 1.1 V typ., V
CC
should be
powered up before or together with voltage on the SR
input.
SR1
AM07466v1
RST
V
SS
SR
SR1
V
CC
V
CC
V
SS
V
DD
RESET
INT / NMI
PUSH - BUTTON
SWITCH
MCU
V
DD
AM07466v2
Typical application diagrams SR1
8/21 DocID026048 Rev 2
Figure 6. Typical application diagram in different voltage domains - SR input in V
BAT
domain like V
CC
totally disables the test mode
SR1
AM07466v3
DocID026048 Rev 2 9/21
SR1 Timing diagrams
21
5 Timing diagrams
Figure 7. RST output without t
REC
option
1. V
CC
should be powered up before or together with voltage on the SR input to prevent entering test mode
by creating
a condition V(SR) > V
CC
+1.1 V typ.
Figure 8. RST output with t
REC
option
1. V
CC
should be powered up before or together with voltage on the SR input to prevent entering test mode
by creating
a condition V(SR
) > V
CC
+1.1 V typ.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21

SR1PARU

Mfr. #:
Buy SR1PARU
Manufacturer:
STMicroelectronics
Description:
Supervisory Circuits 4 pin Smart Reset
Lifecycle:
New from this manufacturer.
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