The MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/MAX6348 microprocessor (µP) supervisory circuits monitor the power supplies in µP and digital systems. These devices provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with 2.5V, 3V, 3.3V, and 5V powered circuits. These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 100ms after VCC has risen above the reset threshold.
The document details the specifications for six microprocessor (uP) supervisory circuit devices: MAX6326, MAX6327, MAX6328, MAX6346, MAX6347, and MAX6348. These circuits are designed to monitor power supplies in digital systems, providing excellent reliability by eliminating the need for external components when used with 2.5V, 3V, 3.3V, and 5V powered circuits.
The devices feature ultra-low supply currents (1µA max) making them ideal for portable equipment, and are available in space-saving SOT23 and SC70 packages. They offer reset thresholds factory-trimmable between 2.2V and 4.63V with a minimum power-on reset pulse width of 100ms.
| Supply Current (MAX6326/MAX6327/MAX6328) | 1µA max |
|---|---|
| Reset Threshold Range | 2.2V to 4.63V |
| Power-On Reset Pulse Width | 100ms (min) |
| Package Types | SC70-3, SOT23-3 |
The maximum supply current is 1µA.
Reset thresholds are factory-trimmable between 2.2V and 4.63V in approximately 100mV increments.
The devices keep the reset signal asserted for at least 100ms after Vcc rises above the threshold.