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STM1066 Datasheet(PDF) 8 Page - STMicroelectronics

Part No. STM1066
Description  Smart voltage supervisor
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM1066 Datasheet(HTML) 8 Page - STMicroelectronics

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Operation
STM1066
8/20
2
Operation
The STM1066 connects or disconnects the output OUT, from the VIN pin based on the
logical combination of the enable input (EN), the inhibit input (INH), and the supply voltage
level, VCC (see Table 2 or Figure 11 for more details).
2.1
Output, OUT
If the enable input is in a logic high state and inhibit input is in a logic low state, the output
will be connected to VIN input as VCC rises above the VTH+ voltage threshold. Otherwise, the
output is connected to ground GND. The output is current limited (see Table 5).
2.2
Enable input, EN
A Logic low on the enable input disconnects the output from VIN and disables the device,
which enters a standby mode with very low current consumption (see Table 5).
2.3
Inhibit input, INH
A logic high on the inhibit input disconnects the output from VIN.
Table 2.
Truth table
VCC
EN(1)
1.
Once the device is disabled by EN input, the VCC must be above VTH+ to reconnect output to VIN.
INH
OUT
<VTH+ (rising edge)
<VTH- (falling edge)
x
x
connected to GND
x
L
x
connected to GND
x
x
H
connected to GND
>VTH+ (rising edge)
>VTH- (falling edge)
H
L
connected to VIN


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