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WS512K32-120G2TC Datasheet(PDF) 3 Page - White Electronic Designs Corporation |
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WS512K32-120G2TC Datasheet(HTML) 3 Page - White Electronic Designs Corporation |
3 / 6 page WS512K32-XXX 3 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs March 2005 Rev. 4 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. Current Source VZ 1.5V (Bipolar Supply) D.U.T. Ceff+50pf IOL IOH Current Source 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 AC CHARACTERISTICS VCC = 5.0V, VSS = 0V, TA = -55°C to +125°C Parameter Symbol -15* -17 -20 -25 Units Write Cycle Min Max Min Max Min Max Min Max Write Cycle Time tWC 70 85 100 120 ns Chip Select to End of Write tCW 60 75 80 100 ns Address Valid to End of Write tAW 60 75 80 100 ns Data Valid to End of Write tDW 30 30 40 40 ns Write Pulse Width tWP 50 50 60 60 ns Address Setup Time tAS 0000 ns Address Hold Time tAH 5555 ns Output Active from End of Write tOW1 5555 ns Write Enable to Output in High Z tWHZ1 25 25 35 35 ns Data Hold from Write Time tDH 0000 ns 1. This parameter is guaranteed by design but not tested. AC CHARACTERISTICS VCC = 5.0V, VSS = 0V, TA = -55°C to +125°C Parameter Symbol -70 -85 -100 -120 Units Read Cycle Min Max Min Max Min Max Min Max Read Cycle Time tRC 70 85 100 120 ns Address Access Time tAA 70 85 100 120 ns Output Hold from Address Change tOH 5555 ns Chip Select Access Time tACS 70 85 100 120 ns Output Enable to Output Valid tOE 35 40 50 60 ns Chip Select to Output in Low Z tCLZ1 10 10 10 10 ns Output Enable to Output in Low Z tOLZ1 5555 ns Chip Disable to Output in High Z tCHZ1 25 25 35 35 ns Output Disable to Output in High Z tOHZ1 25 25 35 35 ns 1. This parameter is guaranteed by design but not tested. FIGURE 2 – AC TEST CIRCUIT |
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