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AS4DDR232M64PBGR-3/XT Datasheet(PDF) 21 Page - Austin Semiconductor |
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AS4DDR232M64PBGR-3/XT Datasheet(HTML) 21 Page - Austin Semiconductor |
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21 / 28 page  iiiiiPEM PEM PEM PEM PEM 2.1 G 2.1 G 2.1 G 2.1 G 2.1 Gbbbbb SDRAM-DDR2 SDRAM-DDR2 SDRAM-DDR2 SDRAM-DDR2 SDRAM-DDR2 AS4DDR232M64PBG AS4DDR232M64PBG Rev. 1.3 6/09 Austin Semiconductor, Inc. ● Austin, Texas ● 512.339.1188 ● www.austinsemiconductor.com 21 Austin Semiconductor, Inc. Parameter Symbol Units Notes Supply Voltage VCC V1 I/O Supply Voltage VCCQ V4 I/O Reference Voltage VREF V2 I/O Termination Voltage VTT V3 All Voltages referenced to Vss VREF VREF + 0.04 0.50 x VCCQ 1.9 0.51 x VCCQ 1.7 0.49 x VCCQ VREF - 0.04 1.8 MIN TYP MAX 1.7 1.8 1.9 DC OPERATING CONDITIONS Notes: 1. VCC VCCQ must track each other. VCCQ must be less than or equal to VCC. 2. VREF is expected to equal VCCQ/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. 3. VTT is not 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. 4. VCCQ tracks with VCC track with VCC. ABSOLUTE MAXIMUM RATINGS Min Max Unit -1.0 2.3 V -0.5 2.3 V -0.5 2.3 V -55.0 125.0 C -55.0 125.0 C -10 10 uA -10 10 uA 10.0 5 Voltage on VCC pin relative to VSS Voltage on VCCQ pin relative to VSS Voltage on any pin relative to VSS Storage Temperature II Input Leakage current; Any input 0V<VIN<VCC; VREF input 0V<VIN<0.95V; Other pins not under test = 0V uA uA uA DM -10.0 10.0 -10.0 -5 IOZ Device Operating Temperature TCASE CMD/ADR, RAS\, CAS\ WE\' CS\. CKE CK, CK\ IVREF Symbol Parameter VCC VCCQ VIN, VOUT TSTG INPUT / OUTPUT CAPACITANCE T A = 25 oC, f = 1 MHz, V CC = VCCQ = 1.8V Parameter Symbol Max Unit Input capacitance (A0-A12, BA0-BA1) CADDR 28 pF Input capacitance (CS#, RAS#, CAS#, WE#, CKE, ODT) CIN1 10 pF Input capacitance CK, CK# CIN2 8pF Input capacitance DM, DQS, DQS# CIN3 10 pF Input capacitance DQ0-63 COUT 12 pF |
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