Internet Data Sheet
HY[B/I]18TC256[80/16]0AF
256-Mbit Double-Data-Rate-Two SDRAM
TABLE 4
Abbreviations for Ball Type
Abbreviation
Description
I
Standard input-only ball. Digital levels.
Output. Digital levels.
I/O is a bidirectional input/output signal.
Input. Analog levels.
Power
O
I/O
AI
PWR
GND
NC
Ground
Not Connected
TABLE 5
Abbreviations for Buffer Type
Abbreviation
Description
SSTL
Serial Stub Terminated Logic (SSTL_18)
Low Voltage CMOS
LV-CMOS
CMOS
OD
CMOS Levels
Open Drain. The corresponding ball has 2 operational states, active low and tristate, and
allows multiple devices to share as a wire-OR.
Rev. 1.3, 2007-11
9
03062006-H3V1-XJT4
Date: 2007-11-23
QIMONDA [ QIMONDA AG ]
