W641GG2JB Datasheet, PDF (5/109 Pages) Winbond – 1-Gbit GDDR3 Graphics SDRAM

W641GG2JB
1-Gbit GDDR3 Graphics SDRAM
7.2.1.1 Power & DC Operation Conditions (0 °C ≤ Tc ≤ 105 °C) ............................................................................................93
7.3 DC & AC Logic Input Levels ............................................................................................................... 94
7.3.1 DC & AC Logic Input Levels (0 °C ≤ Tc ≤ 105 °C) ..........................................................................................94
7.4 Differential Clock DC and AC Levels .................................................................................................. 95
7.4.1 Differential Clock DC and AC Input conditions (0 °C ≤ Tc ≤ 105°C) ............................................................... 95
7.5 Output Test Conditions ...................................................................................................................... 95
7.6 Pin Capacitances............................................................................................................................... 96
7.6.1 Pin Capacitances (VDDQ = 1.8 V, TA = 25°C, f = 1 MHz) ..............................................................................96
7.7 Driver current characteristics ............................................................................................................. 96
7.7.1 Driver IV characteristics at 40 Ohms................................................................................................................96
7.7.1.1 40 Ohm Driver Pull-Down and Pull-up Characteristics................................................................................................96
7.7.1.2 Programmed Driver IV Characteristics at 40 Ohm .......................................................................................................97
7.8 Termination current characteristics .................................................................................................... 97
7.8.1 Termination IV Characteristic at 60 Ohms .......................................................................................................97
7.8.1.1 60 Ohm Active Termination Characteristic..................................................................................................................98
7.8.1.2 Programmed Terminator Characteristics at 60 Ohm....................................................................................................98
7.8.2 Termination IV Characteristic at 120 Ohms .....................................................................................................99
7.8.2.1 120 Ohm Active Termination Characteristic................................................................................................................99
7.8.2.2 Programmed Terminator Characteristics of 120 Ohm................................................................................................100
7.8.3 Termination IV Characteristic at 240 Ohms ...................................................................................................100
7.8.3.1 240 Ohm Active Termination Characteristic..............................................................................................................100
7.8.3.2 Programmed Terminator Characteristics at 240 Ohm ...............................................................................................101
7.9 Operating Current Ratings ............................................................................................................... 102
7.10 AC Timings .................................................................................................................................... 103
8. PACKAGE SPECIFICATION................................................................................................... 106
9. ORDERING INFORMATION.................................................................................................... 107
10. REVISION HISTORY ............................................................................................................. 108
Publication Release Date: Apr, 22, 2011
-5-
Revision A01-002