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1.0
Unbuffered Graphics SO-DIMM Module
1.1
General Features
•
144-pin, small-outline, dual-in-line memory module (SO-DIMM).
•
64-bit data bus (non-ECC/Parity)
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Maximum of 8MB per module with extensions to 32MB
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SDRAM/SGRAM
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Single, 3.3V ±10% power supply
•
LVTTL-compatible inputs and outputs
•
Specification currently defines four module frequencies (speeds); 66 MHz (15 nS), 83 MHz
(12 nS), 100 MHz (10 nS), and 125 MHz (8 nS).
1.2
Labeling
Four module frequencies are currently defined; they are:
•
66 MHz (15 nS).
•
83 MHz (12 nS).
•
100 MHz (10 nS).
•
125 MHz (8 nS).
For consistency, modules should be clearly marked indicating their rated frequency in MHz. The
speed, in nano-seconds, is optional. This label should be consistent with the module speed setting
used in the resistor strapping option.
To be compliant, a module must meet at least one complete table in the Memory Timing section of
the "PC SGRAM" specification.
Revision 0.91
SO-DIMM Module — Unbuffered SDRAM/SGRAM Graphics
1
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