Internet Data Sheet
HYS[64/72]T[32/64/128]xx0HU–[3/3S/3.7/5]–A
Unbuffered DDR2 SDRAM Modules
TABLE 8
Abbreviations for Pin Type
Abbreviation
I
O
I/O
AI
PWR
GND
NC
Description
Standard input-only pin. Digital levels.
Output. Digital levels.
I/O is a bidirectional input/output signal.
Input. Analog levels.
Power
Ground
Not Connected
TABLE 9
Abbreviations for Buffer Type
Abbreviation
SSTL
LV-CMOS
CMOS
OD
Description
Serial Stub Terminated Logic (SSTL_18)
Low Voltage CMOS
CMOS Levels
Open Drain. The corresponding pin has 2 operational states, active low and tri-state,
and allows multiple devices to share as a wire-OR.
Rev. 1.41, 2007-05
03292006-EZUJ-JY4S
13
QIMONDA [ QIMONDA AG ]
