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CF5027C3-4 Datasheet(PDF) 4 Page - Nippon Precision Circuits Inc |
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CF5027C3-4 Datasheet(HTML) 4 Page - Nippon Precision Circuits Inc |
4 / 21 page WF5027 series SEIKO NPC CORPORATION —4 VERSION DISCRIMINATION INTERNAL COMPONENTS The WF5027 series device version is not determined solely by the mask pattern, but can also be determined by the trimming of internal trimming fuses. I Version determined by laser trimming: These chips are produced from a common device by the laser trimming of fuses corresponding to the ordered version, shown in table 1. These devices are shipped for electrical characteristics testing. Laser-trimmed ver- sions are identified externally by the combination of the version name marking (1) and the locations of trimmed fuses (2). I Version determined by mask pattern: These chips are fabricated using the mask corresponding to the ordered version, and do not require trimming. Mask-fabricated versions are identified externally by the version name marking (1) only. Since the WF5027 series devices are manufactured using 2 methods, there are 2 types of IC chip available (identified externally) for the same version name. The identification markings for all WF5027 series device versions is shown in table 2. (750,690) NPC F1 F2 F3 F4 F5 F6 F7 F8 F9 (2) Trimming fuses (1) Version code on die |
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Similar Description - CF5027C3-4 |
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