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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST52T400 датащи(PDF) 74 Page - STMicroelectronics |
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ST52T400 датащи(HTML) 74 Page - STMicroelectronics |
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74 / 94 page  ST52T400/T440/E440/T441 74/94 11.3 Recommended Operating Condition Operating condition: VDD=5V ±10%; TA=0/125°C (unless otherwise specified). Notes: 1. It is reccomendend to insert a capacitor beetwen VDD and VSS for improving noise rejection. Rec- comended values are 10 µF (electrolytic or tantalum) and/or 100 nF (ceramic). 2. A lower VDD decreasing fosc (see Figure 11.3). Data illustrated in the figure are characterized but not tested. Figure 11.3 fosc Maximum Operating Frequency versus VDD supply (*) (*) Only digital parts of the device: the Analog Comparator cannot work with supply voltage lower than 4.5 V. Table 11.4 Recommended Operating Conditions Symbol Parameter Test Condition Min. Typ. Max Unit VDD 2) Operating Supply Refer to Figure 11.3 2.7 5.5 V VPP Programming Voltage 11.4 12 12.6 VO Output Voltage VSS VDD VSSA Analog Ground VSS-0.3 VSS VSS+0.3 fOSC 1)2) Oscillator Frequency 1 20 MHz 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 0 2 4 6 8 10 12 14 16 18 20 Functionality not guaranteed in this area Functionality not guaranteed in this area Functionality guaranteed in this area Vdd (V) |
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