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STA003T Arkusz danych(PDF) 5 Page - STMicroelectronics |
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STA003T Arkusz danych(HTML) 5 Page - STMicroelectronics |
5 / 32 page VDD 100nF 1 2 VDD 100nF 14 13 VSS VDD 100nF 16 15 VDD 100nF 23 22 VSS VSS VSS 17 18 27 28 26 RESET 24 TESTEN 25 SCANEN VDD_5/CLK_OUT VDD PVSS PVDD 100nF 4.7 µF 4.7 µF PVDD PVSS VSS 10K 1K 4.7nF PVSS 470pF 19 20 21 8 7 6 5 12 11 10 9 4 3 XTO XTI SCR_INT BIT_EN SCKR SDI OCLK LRCKT SCKT SDO SCL SDA D99AU1004 Figure 3. Test Circuit IOL IOH CL VREF VDD OUTPUT D98AU967 Test Load Circuit Output IOL IOH CL VREF SDA 1mA 100pF 3.6V Other Outputs 100 µA100µA 100pF 1.5V Test Load 2. FUNCTIONAL DESCRIPTION 2.1 - Clock Signal The STA003T input clock is derivated from an ex- ternal source or from a 14.72 MHz crystal. XTI is an input Pad with specific levels. Symbol Parameter Test Condition Min. Typ. Max. Unit VIL Low Level Input Voltage VDD-1.8 V VIH High Level Input Voltage VDD-0.8 V CMOS compatibility The XTI pad low and high levels are CMOS compatible; XTI pad noise margin is better than typical CMOS pads. TTL compatibility The XTI pad low level is compatible with TTL while the high level is not compatible (for example if VDD = 3V TTL min high level = 2.0V while XTI min high level = 2.2V) STA003T 5/32 |
Podobny numer części - STA003T |
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Podobny opis - STA003T |
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