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STM6823 Fiches technique(PDF) 5 Page - STMicroelectronics

No de pièce STM6823
Description  5-pin supervisor with watchdog timer and push-button reset
PDF  31 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM6823 Fiches technique(HTML) 5 Page - STMicroelectronics

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STM632x, STM682x
Description
30
1
Description
The STM6xxx supervisors are self-contained devices which provide microprocessor
supervisory functions. A precision voltage reference and comparator monitors the VCC input
for an out-of-tolerance 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 1. Logic diagram (STM6821/6822/6823)
1. For STM6821 only.
Figure 2. Logic diagram (STM6321/6322/6824/6825)
1. For STM6321/6824.
Table 2. Signal names
Name
Function
MR
Push-button reset input
WDI
Watchdog input
RST
Active low reset output
RST
Active high reset output
VCC
Supply voltage
VSS
Ground
AI09128
VCC
STM6XXX
VSS
RST (RST)(1)
WDI
MR
AI09129
VCC
STM6XXX
VSS
RST
RST
(WDI)
(1) MR



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