Verify all locations (using Speed Verify mode) at VDD = VDDMIN.
Verify all locations at VDD = VDDMAX. VDDMIN is the minimum operating voltage spec. for the part. VDDMAX is the maximum operating voltage spec. for the part.
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VDD: 2.0V to 6.5V with 0.25V granularity. Since this method calls for verification at different VDD values, a programmable VDD power supply is needed.
It is important to verify an EPROM at the voltages specified in this method to remain consistent with Microchip's test screening. For example, a PIC12C5XX specified for 4.5V to 5.5V should be tested for proper programming from 4.5V to 5.5V.
Note: Any programmer not meeting the programmable VDD requirement and the verify at VDDMAX and VDDMIN requirement, may only be classified as a "prototype" or "development" programmer, but not a production programmer.
WBR, AVB
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Dima Orlov
Hello, Michael Belousoff !
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