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WSF512K32-29H2M Datasheet(PDF) 4 Page - White Electronic Designs Corporation |
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WSF512K32-29H2M Datasheet(HTML) 4 Page - White Electronic Designs Corporation |
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4 / 14 page  4 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs WSF512K32-XXX May 2006 Rev. 9 I Current Source D.U.T. C = 50 pf eff I OL V ≈ 1.5V (Bipolar Supply) Z Current Source OH FIGURE 3 AC TEST CIRCUIT SRAM AC CHARACTERISTICS VCC = 5.0V, -55°C ≤ TA ≤ +125°C Parameter Read Cycle Symbol -25 Units Min Max Read Cycle Time tRC 25 ns Address Access Time tAA 25 ns Output Hold from Address Change tOH 0ns Chip Select Access Time tACS 25 ns Output Enable to Output Valid tOE 15 ns Chip Select to Output in Low Z tCLZ1 3ns Output Enable to Output in Low Z tOLZ1 0ns Chip Disable to Output in High Z tCHZ1 12 ns Output Disable to Output in High Z tOHZ1 12 ns 1. This parameter is guaranteed by design but not tested. SRAM AC CHARACTERISTICS VCC = 5.0V, -55°C ≤ TA ≤ +125°C Parameter Write Cycle Symbol -25 Units Min Max Write Cycle Time tWC 25 ns Chip Select to End of Write tCW 20 ns Address Valid to End of Write tAW 20 ns Data Valid to End of Write tDW 15 ns Write Pulse Width tWP 20 ns Address Setup Time tAS 3ns Address Hold Time tAH 0ns Output Active from End of Write tOW1 3ns Write Enable to Output in High Z tWHZ1 15 ns Data Hold from Write Time tDH 0ns 1. This parameter is guaranteed by design but not tested. AC Test Conditions Parameter Typ Unit Input Pulse Levels VIL = 0, VIH = 3.0 V Input Rise and Fall 5 ns Input and Output Reference Level 1.5 V Output Timing Reference Level 1.5 V Notes: VZ is programmable from -2V to +7V. IOL & IOH programmable from 0 to 16mA. Tester Impedance Z0 = 75 Ω. VZ is typically the midpoint of VOH and VOL. IOL & IOH are adjusted to simulate a typical resistive load circuit. ATE tester includes jig capacitance. |
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