NXP Semiconductors MAX809
The MAX809 has an active-LOW reset output while the MAX810 has an active-HIGH reset output. The low supply current of typically 17 µA makes the MAX809/MAX810 ideal for use in portable, battery operated equipment. They are available in the 3-pin SOT23 and SC70 packages.| Part No. | MAX809 |
|---|---|
| Datasheet | MAX809 Download |
| Manufacturer |  NXP Semiconductors |
| Description | 3-pin microprocessor resets |
| Buy | Stock & Price |
DESCRIPTION
The MAX809/MAX810 are single function microprocessor resets used to monitor supply voltages in microprocessor and other logic systems. They provide a reset signal to the microprocessor during power-up, power-down, and brownout conditions. The reset signal is asserted when the supply voltage drops below the preset threshold, and the signal is released a set time after the supply voltage has risen above the preset threshold.FEATURES
● Monitors 5.0 V, 3.3 V and 3 V supplies● 140 ms min. reset delay time: – Active-LOW RESET output (MAX809) – Active-HIGH RESET output (MAX810)
● Power supply transient immunity
● Guaranteed reset valid for 1.1 V
● Available in small SOT23 and SC70 3-pin packages
● No external components needed
● Specified over full temperature range –40 °C to +105 °C
APPLICATIONS
● Embedded controllers● Battery operated systems
● Wireless communication systems
● PDAs and handheld equipment SIMPLIFIED SYSTEM DIAGRAMS VCC VCC VCC VCC VCC VCC MAX809 RESET GND MICROPROCESSOR MAX810 RESET GND MICROPROCESSOR RESET INPUT GND RESET INPUT GND SL01642 SL01643 Figure 1.
