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WV3HG2128M72EEU-AD4 Datasheet(PDF) 4 Page - White Electronic Designs Corporation |
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WV3HG2128M72EEU-AD4 Datasheet(HTML) 4 Page - White Electronic Designs Corporation |
4 / 11 page WV3HG2128M72EEU-AD4 February 2006 Rev. 0 ADVANCED 4 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs DC OPERATING CONDITIONS All voltages referenced to VSS Parameter Symbol Rating Units Notes Min. Type Max. Supply Voltage VCC 1.7 1.8 1.9 V I/O Reference Voltage VREF 0.49 x VCC 0.50 x VCC 0.51 x VCC V1 I/O Termination Voltage VTT VREF-0.04 VREF VREF+0.04 V 2 Notes: 1 VREF is expected to equal VCC/2 of the transmitting device and to track variations in the DC level of the same. Peak-to-peak noise on VREF may not exceed +/-1 percent of the DC value. Peak-to-peak AC noise on VREF may not exceed +/-2 percent of VREF. This measurement is to be taken at the nearest VREF bypass capacitor. 2. VTT in sot applied directly to the device. VTT is a system supply for signal termination resistors, is expected to be set equal to VREF and must track variations in the DC level of VREF. ABSOLUTE MAXIMUM RATINGS Symbol Parameter Min Max Units VCC Voltage on VCC pin relative to VSS -1.0 2.3 V VIN, VOUT Voltage on any pin relative to VSS -0.5 2.3 V TSTG Storage Temperature -55 100 ˚C TCASE Device operating Temperature 0 85 ˚C IL Input leakage current; Any input 0V<VIN<VCC; VREF input 0V<VIN<0.95V; Other pins not under test = 0V Command/Address, RAS#, CAS#, WE# -90 90 µA CKE, CS#, ODT -45 45 µA CK,CK# -10 10 µA DM -10 10 IOZ Output leakage current; 0V<VIN<VCCQ; DQs and ODT are disable DQ, DQS, DQS# -10 10 µA IVREF VREF leakage current; VREF = Valid VREF level -36 36 µA |
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