MAXIM P89C660/P89C662/P89C664/P89C668 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP FLASH with 512B/1KB/2KB/8KB RAM handbook

Update: 28 September, 2023

The MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/MAX6348 are microprocessor (µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They 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 only difference between the devices is their output. The MAX6326/MAX6346 (push-pull) and MAX6328/MAX6348 (open-drain) have an active-low reset output. The MAX6327/MAX6347 have an active-high push-pull reset output. All of these parts are guaranteed to be in the correct state for VCC down to 1V. The reset comparator is designed to ignore fast transients on VCC. Reset thresholds are factory-trimmable between 2.2V and 4.63V, in approximately 100mV increments. Twenty-one standard versions are available. Contact the factory for availability of nonstandard versions. Ultra-low supply currents (1µA max for the MAX6326/MAX6327/MAX6328) make these parts ideal for use in portable equipment. All six devices are available in space-saving SOT23 and SC70 packages.


Brand: MAXIM

File format: PDF

Size: 137 KB

MD5 Checksum: 3B40646DD06A2739905F5DE1389290F1

Publication date: 07 June, 2012

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PDF Link: MAXIM P89C660/P89C662/P89C664/P89C668 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP FLASH with 512B/1KB/2KB/8KB RAM handbook PDF

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