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STC62WV256TC Fiches technique(PDF) 4 Page - List of Unclassifed Manufacturers |
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STC62WV256TC Fiches technique(HTML) 4 Page - List of Unclassifed Manufacturers |
4 / 10 page Revision 2.3 Jan. 2004 4 JEDEC PARAMETER NAME PARAMETER NAME DESCRIPTION CYCLE TIME : 70ns MIN. TYP. MAX. UNIT t AVAX t RC Read Cycle Time 70 -- -- ns t AVQV t AA Address Access Time -- -- 70 ns t ELQV t ACS Chip Select Access Time -- -- 70 ns t GLQV t OE Output Enable to Output Valid -- -- 50 ns t ELQX t CLZ Chip Select to Output Low Z 10 -- -- ns t GLQX t OLZ Output Enable to Output in Low Z 10 -- -- ns t EHQZ t CHZ Chip Deselect to Output in High Z -- -- 35 ns t GHQZ t OHZ Output Disable to Output in High Z -- -- 30 ns t AXOX t OH Data Hold from Address Change 10 -- -- ns Input Pulse Levels Input Rise and Fall Times Input and Output Timing Reference Level Vcc/0V 1V/ns 0.5Vcc AC ELECTRICAL CHARACTERISTICS ( TA =0oC to + 70oC and Vcc=3.0V) READ CYCLE AC TEST CONDITIONS AC TEST LOADS AND WAVEFORMS KEY TO SWITCHING WAVEFORMS WAVEFORM INPUTS OUTPUTS MUST BE STEADY MAY CHANGE FROM H TO L DON T CARE: ANY CHANGE PERMITTED DOES NOT APPLY MUST BE STEADY WILL BE CHANGE FROM H TO L CHANGE : STATE UNKNOWN CENTER LINE IS HIGH IMPEDANCE ”OFF ”STATE MAY CHANGE FROM L TO H WILL BE CHANGE FROM L TO H , STC STC62WV256 R0201- STC62WV256 Ω 667 THEVENIN EQUIVALENT ALL INPUT PULSES → 10% ← 90% Vcc GND → ← 5ns 90% 10% 1.73V OUTPUT FIGURE 2 3.3V OUTPUT INCLUDING JIG AND SCOPE Ω 1269 Ω 1404 5PF FIGURE 1B 3.3V INCLUDING JIG AND SCOPE Ω 1269 Ω 100PF FIGURE 1A 1404 OUTPUT |
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