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STM6322 Datasheet(PDF) 4 Page - STMicroelectronics

Part No. STM6322
Description  5-Pin Supervisor with Watchdog Timer and Push-button Reset
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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STM6322 Datasheet(HTML) 4 Page - STMicroelectronics

 
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STM6321/6322/6821/6822/6823/6824/6825
4/21
SUMMARY DESCRIPTION
The STM6xxx Supervisors are self-contained de-
vices which provide microprocessor supervisory
functions. A precision voltage reference and com-
parator monitors the VCC input for an out-of-toler-
ance condition. When an invalid VCC condition
occurs, the reset output (RST) is forced low (or
high in the case of RST). These devices also offer
a watchdog timer (except for STM6322/6825) and/
or a push-button (MR) reset input.
These devices are available in a standard 5-pin
SOT23 package.
Figure 2. Logic Diagram (STM6821/6822/6823)
Note: 1. For STM6821 only.
Figure 3. Logic Diagram (STM6321/6322/6824/
6825)
Note: 1. For STM6321/6824
Table 2. Signal Names
Figure 4. STM6821/6822/6823 SOT23-5
Connections
Note: 1. Push-pull only.
2. Open Drain for STM6822.
Figure 5. STM6321/6322/6824/6825 SOT23-5
Connections
Note: 1. Open Drain for STM6321/6322.
2. Push-pull only.
3. For STM6321/6824
AI09128
VCC
STM6XXX
VSS
RST (RST)(1)
WDI
MR
AI09129
VCC
STM6XXX
VSS
RST
RST
(WDI)
(1) MR
MR
Push-button Reset Input
WDI
Watchdog Input
RST
Active-Low Reset Output
RST
Active-High Reset Output
VCC
Supply Voltage
VSS
Ground
1
WDI
RST(1)(RST)(2)
VCC
MR
VSS
AI09130
SOT23-5
2
3
4
5
1
VCC
VSS
AI09131
SOT23-5
2
3
4
5
MR (WDI)(3)
RST(1)
RST(2)


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