STM1818 STMicroelectronics, STM1818 Datasheet - Page 8

• Manufacturer Part Number: STM1818
• Description: Low Power Reset Circuit
• Manufacturer: STMicroelectronics

Specifications of STM1818

• Operating Temperature: –40 °C to 105 °C
• ± 2.5% Reset Threshold Accuracy: (–40 °C to 105 °C)

Description
1.2.3
1.2.4
1.2.5
1.2.6
8/25
Active-high RST output (push-pull)
Pulses high when V
threshold. It remains high for t
Active-low RST output (open-drain with internal 5.5 kΩ pull-up) with
manual reset detect
Pulses low when V
It remains low for t
manual reset is released (see
V
Supply voltage and input for V
V
Ground, is the reference for the power supply. It must be connected to the system ground.
Table 3.
Table 4.
Table 5.
Table 6.
CC
SS
Pin
Pin
Pin
Pin
1
2
3
1
2
3
1
2
3
1
2
3
Name
Name
Name
RST
Name
V
RST
V
V
V
RST
V
RST
V
V
V
CC
SS
CC
SS
CC
SS
CC
SS
STM1810/STM1815
STM1811/STM1816
STM1812/STM1817
STM1813/STM1818
Active-low reset output (push-pull)
Supply voltage and input for reset threshold monitor
Ground
Active-low reset output (open-drain, with internal 5.5 kΩ pull-up resistor)
Supply voltage and input for reset threshold monitor
Ground
Active-high reset output (push-pull)
Supply voltage and input for reset threshold monitor
Ground
Active-low reset output (open-drain, with internal 5.5 kΩ pull-up) with push-
button/manual reset detect
Supply voltage and input for reset threshold monitor
Ground
PBRST
CC
CC
drops below V
drops below V
after V
rec
RST
Figure
Doc ID11464 Rev 8
CC
after V
comparator.
rises above the reset threshold, or after the external
RST
9). RST output has an internal 5.5 kΩ pull-up resistor.
RST
CC
, or RST is externally pulled low for at least 1.5 µs.
, and stays high as long as V
STM1810/1811/1812/1813/1815/1816/1817/1818
rises above the reset threshold.
Function
Function
Function
Function
CC
is below the reset