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WF2M16W-90C5 Datasheet(PDF) 4 Page - White Electronic Designs Corporation |
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WF2M16W-90C5 Datasheet(HTML) 4 Page - White Electronic Designs Corporation |
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4 / 12 page  4 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs WF2M16-XXX5 April 2004 Rev. 5 PRELIMINARY AC CHARACTERISTICS – WRITE/ERASE/PROGRAM OPERATIONS,CS# CONTROLLED VCC = 5.0V, VSS = 0V, -55°C ≤ TA ≤ +125°C FIGURE 2 – AC TEST CIRCUIT AC TEST CONDITIONS Notes: VZ is programmable from -2V to +7V. IOL & IOH programmable from 0 to 16mA. Tester Impedance Z0 = 75 ý. 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. 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 Current Source D.U.T. CEFF = 50 pf IOL IOH VZ 1.5V (Bipolar Supply) Current Source Parameter Symbol -90 -120 -150 Unit Min Max Min Max Min Max Write Cycle Time tAVAV tWC 90 120 150 ns Write Enable Setup Time tWLEL tWS 000 ns Chip Select Pulse Width tELEH tCP 45 50 50 ns Address Setup Time tAVEL tAS 000 ns Data Setup Time tDVEH tDS 45 50 50 ns Data Hold Time tEHDX tDH 000 ns Address Hold Time tELAX tAH 45 50 50 ns Chip Select Pulse Width High tEHEL tCPH 20 20 20 ns Duration of Byte Programming Operation (1) tWHWH1 300 300 300 µs Sector Erase Time (2) tWHWH2 15 15 15 sec Read Recovery Time tGHEL 000 µs Chip Programming Time 44 44 44 sec Chip Erase Time (3) 256 256 256 sec Output Enable Hold Time (4) tOEH 10 10 10 ns NOTES: 1. Typical value for tWHWH1 is 7µs. 2. Typical value for tWHWH2 is 1sec. 3. Typical value for Chip Erase Time is 32sec. 4. For Toggle and Data Polling. FIGURE 3 – RESET TIMING DIAGRAM RESET# tRP tReady |
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