stm1818r STMicroelectronics, stm1818r Datasheet - Page 7

• Manufacturer Part Number: stm1818r
• Description: Low Power Reset Circuit
• Manufacturer: STMicroelectronics

STM1810/1811/1812/1813/1815/1816/1817/1818
1.1
1.2
1.2.1
1.2.2
Functional block diagrams
Figure 5.
1. RST for STM1812 and STM1817.
Figure 6.
1. 5.5 k internal pull-up resistor.
Figure 7.
1. 5.5 k internal pull-up resistor.
Pin descriptions
See
Active-low RST output (push-pull)
Pulses low when V
threshold. It remains low for t
Active-low RST output (open drain)
Pulses low when V
threshold. It remains low for t
an internal 5.5 k pull-up resistor.
Figure 2
V
CC
Push-pull active-low output (STM1810/1812/1815/1817)
Open drain, active-low output (STM1811/1816)
Open drain, active-low output (bidirectional, manual reset detect,
STM1813/1818)
and
V
V
V
CC
RST
Table 2
CC
CC
CC
drops below V
drops below V
V
V
RST
RST
COMPARE
for a brief overview of the signals connected to this device.
rec
rec
COMPARE
COMPARE
after V
after V
RST
RST
Generator
CC
CC
, and stays low as long as V
, and stays low as long as V
t rec
rises above the reset threshold.
rises above the reset threshold. RST output has
Generator
Generator
t rec
t rec
Push-button
Detect
5.5 k
CC
CC
(1)
AI09651a
5.5 k
AI09672
RST
is below the reset
is below the reset
RST
(1)
(1)
AI09673
RST
Description
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