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CAT25640 데이터시트(PDF) 5 Page - ON Semiconductor |
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CAT25640 데이터시트(HTML) 5 Page - ON Semiconductor |
5 / 19 page CAT25640 http://onsemi.com 5 Table 7. A.C. CHARACTERISTICS – NEW PRODUCT (Rev F) (VCC = 1.8 V to 5.5 V, TA = −40°C to +85°C (Industrial) and VCC = 2.5 V to 5.5 V, TA = −40°C to +125°C, unless otherwise specified.) (Note 9) Symbol Parameter VCC = 1.8 V − 5.5 V −405C to +855C VCC = 2.5 V − 5.5 V −405C to +1255C VCC = 4.5 V − 5.5 V −405C to +855C Units Min Max Min Max Min Max fSCK Clock Frequency DC 5 DC 10 DC 20 MHz tSU Data Setup Time 20 10 5 ns tH Data Hold Time 20 10 5 ns tWH SCK High Time 75 40 20 ns tWL SCK Low Time 75 40 20 ns tLZ HOLD to Output Low Z 50 25 25 ns tRI (Note 10) Input Rise Time 2 2 2 ms tFI (Note 10) Input Fall Time 2 2 2 ms tHD HOLD Setup Time 0 0 0 ns tCD HOLD Hold Time 10 10 5 ns tV Output Valid from Clock Low 70 35 20 ns tHO Output Hold Time 0 0 0 ns tDIS Output Disable Time 50 20 20 ns tHZ HOLD to Output High Z 100 25 25 ns tCS CS High Time 80 40 20 ns tCSS CS Setup Time 30 30 15 ns tCSH CS Hold Time 30 30 20 ns tCNS CS Inactive Setup Time 20 20 15 ns tCNH CS Inactive Hold Time 20 20 15 ns tWPS WP Setup Time 10 10 10 ns tWPH WP Hold Time 10 10 10 ns tWC (Note 11) Write Cycle Time 5 5 5 ms 9. AC Test Conditions: Input Pulse Voltages: 0.3 VCC to 0.7 VCC Input rise and fall times: ≤ 10 ns Input and output reference voltages: 0.5 VCC Output load: current source IOL max/IOH max; CL = 30 pF 10.This parameter is tested initially and after a design or process change that affects the parameter. 11. tWC is the time from the rising edge of CS after a valid write sequence to the end of the internal write cycle. Table 8. POWER−UP TIMING (Notes 10, 12) Symbol Parameter Max Units tPUR Power−up to Read Operation 1 ms tPUW Power−up to Write Operation 1 ms 12.tPUR and tPUW are the delays required from the time VCC is stable until the specified operation can be initiated. |
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