STM1810_07 Datasheet, PDF (1/25 Pages) STMicroelectronics – Low power reset circuit

STM1810 STM1811 STM1812 STM1813
STM1815 STM1816 STM1817 STM1818
Low power reset circuit
Features
● Precision monitoring of 3 V , 3.3 V, and 5 V
supply voltages
● Four output configurations:
– Push-Pull, Active-High (STM1812,1817)
– Push-Pull, Active-Low (STM1810,1815)
– Open Drain, Active-Low
(STM1811,1816)
– Open Drain, Active-Low with Push-
Button Detect (STM1813,1818)
● Reset pulse width - 100 ms (min)
● Low supply current - 4 µA (typ)
● Guaranteed assertion down to V_CC = 1.0 V
(0 °C to 105 °C)
● Factory-trimmed reset thresholds of 2.55 V,
2.88 V, 3.06 V, 4.37 V, and 4.62 V (typ)
● Power supply transient immunity
● Push-button/manual reset detect
(STM1813/1818)
SOT23-3 (WX)
● Operating temperature: –40 °C to 105 °C
● ± 2.5 % reset threshold accuracy:
(–40 °C to 105 °C)
● Available in the SOT23-3 package
● Fully compatible with DS181x and MXD181x
products.
Table 1. Device summary
Order codes
5V
3.3 V/
3.0 V
Active-Low Active-Low Active-High
RESET
RESET
RESET
(Push-Pull) (Open Drain) (Push-Pull)
STM1810L/M ✔
✔
STM1811L/M ✔
✔⁽¹⁾
STM1812L/M ✔
✔
STM1813L/M ✔
STM1815T/S/R
✔
✔
STM1816T/S/R
✔
✔⁽¹⁾
STM1817T/S/R
✔
✔
STM1818T/S/R
✔
1. Active-low RST with internal pull-up resistor.
Active-Low RESET
(Open Drain,
Bidirectional, with MR Detect)
✔
✔
August 2007
Rev 7
1/25
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