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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SPC58ECX датащи(PDF) 116 Page - STMicroelectronics |
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SPC58ECX датащи(HTML) 116 Page - STMicroelectronics |
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116 / 153 page  Package information SPC584Cx, SPC58ECx 116/153 DS11620 Rev 8 Figure 54. eTQFP100 leadframe pad design 5.3 eTQFP144 package information Refer to Section 5.3.1: Package mechanical drawings and data information for full description of below figures and table notes. Note: number, dimensions and positions of grooves are for reference only. Table 68. eTQFP100 symbol definitions Symbol Definition Notes aaa The tolerance that controls the position of the terminal pattern with respect to Datum A and B. The center of the tolerance zone for each terminal is defined by basic dimension e as related to Datum A and B. For flange-molded packages, this tolerance also applies for basic dimensions D1 and E1. For packages tooled with intentional terminal tip protrusions, aaa does not apply to those protrusions. bbb The bilateral profile tolerance that controls the position of the plastic body sides. The centers of the profile zones are defined by the basic dimensions D and E. — ccc The unilateral tolerance located above the seating plane where in the bottom surface of all terminals must be located. This tolerance is commonly know as the “coplanarity” of the package terminals. ddd The tolerance that controls the position of the terminals to each other. The centers of the profile zones are defined by basic dimension e. This tolerance is normally compounded with tolerance zone defined by “b”. |
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