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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UPSD3233 датащи(PDF) 140 Page - STMicroelectronics |
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UPSD3233 датащи(HTML) 140 Page - STMicroelectronics |
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140 / 170 page  uPSD3234A, uPSD3234BV, uPSD3233B, uPSD3233BV 140/170 DC AND AC PARAMETERS This section summarizes the operating and mea- surement conditions, and the DC and AC charac- teristics of the device. The parameters in the DC and AC Characteristic tables that follow are de- rived from tests performed under the Measure- ment Conditions summarized in the relevant tables. Designers should check that the operating conditions in their circuit match the measurement conditions when relying on the quoted parame- ters. Table 112. Operating Conditions (5V Devices) Table 113. Operating Conditions (3V Devices) Table 114. AC Letter Symbols for Timing Note: Example: tAVLX = Time from Address Valid to ALE Invalid. Table 115. AC Signal Behavior Symbols for Timing Note: Example: tAVLX = Time from Address Valid to ALE Invalid. Symbol Parameter Min. Max. Unit VCC Supply Voltage 4.5 5.5 V TA Ambient Operating Temperature (Industrial) –40 85 °C Ambient Operating Temperature (Commercial) 0 70 °C Symbol Parameter Min. Max. Unit VCC Supply Voltage 3.0 3.6 V TA Ambient Operating Temperature (Industrial) –40 85 °C Ambient Operating Temperature (Commercial) 0 70 °C A Address C Clock D Input Data I Instruction LALE N RESET Input or Output P PSEN signal Q Output Data R RD signal W WR signal B VSTBY Output M Output Macrocell tTime L Logic Level Low or ALE H Logic Level High V Valid X No Longer a Valid Logic Level ZFloat PW Pulse Width |
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