STM810LW16F STMICROELECTRONICS [STMicroelectronics], STM810LW16F Datasheet - Page 4

• Manufacturer Part Number: STM810LW16F
• Description: Reset Circuit
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STM809/810/811/812
SUMMARY DESCRIPTION
The STM809/810/811/812 MICROPROCESSOR
RESET Circuits are low-power supervisory devic-
es used to monitor power supplies. They perform
a single function: asserting a reset signal whenev-
er the V
Figure 2. Logic Diagram (STM809/810)
Note: 1. For STM810
Figure 3. Logic Diagram (STM811/812)
Note: 1. For STM812
Figure 6. Block Diagram
Note: 1. STM811/812 only
4/18
2. RST for STM810/812
MR
CC
MR
supply voltage drops below a preset
(1)
STM811/812
STM809/810
V
V
V
V
CC
CC
SS
SS
V
CC
RST (RST)
V
RST (RST)
RST
AI07831
AI07832
DEBOUNCE
COMPARE
(1)
(1)
value and keeping it asserted until V
above the preset threshold for a minimum period
of time (t
push-button reset input (MR).
Table 2. Signal Names
Note: 1. STM810/812 only
Figure 4. SOT23-3 Connections
Figure 5. SOT143-4 Connections
V
RST
RST
V
MR
SS
CC
(2)
2. STM811/812 only
(1)
RST (RST)
RST (RST)
rec
(For STM812)
(For STM810)
). The STM811/812 also provide a
V
V
SS
SS
Ground
Active-Low RESET Output
Active-High RESET Output
Supply Voltage
Manual Reset Input
Generator
1
2
1
2
t
rec
4
3
3
AI07833
AI07834
V
AI07835
V
MR
CC
RST
CC
CC
(2)
has risen