HYS72T64300HP-3S-A Datasheet, PDF (12/50 Pages) Qimonda AG – 240-Pin Registered DDR2 SDRAM Modules

Internet Data Sheet
Pin No.
Name
2, 5, 8, 11, 14, 17, V_SS
20, 23, 26, 29, 32,
35, 38, 41, 44, 47,
50, 65, 66, 79, 82,
85, 88, 91, 94, 97,
100, 103, 106, 109,
112, 115, 118, 121,
124, 127, 130, 133,
136, 139, 142, 145,
148, 151, 154, 157,
160, 163, 166, 169,
198, 201, 204, 207,
210, 213, 216, 219,
222, 225, 228, 231,
234, 237
Other Pins
19, 102, 137, 138, NC
195
ODT0
77
ODT1
NC
Abbreviation
SSTL
CMOS
OD
HYS72T[64/128]3x0HP–[3S/3.7/5]–A
Registered DDR2 SDRAM Modules
Pin Buffer
Type Type
GND —
Function
Ground Plane
Power and ground for the DDR SDRAM
NC —
Not connected
Pins not connected on Qimonda RDIMM’s
I
SSTL On-Die Termination Control 1:0
I
SSTL ^{Asserts on-die termination for DQ, DM, DQS, and DQS signals if}
enabled via the DDR2 SDRAM mode register.
Note: 2-Ranks module
NC —
Note: 1-Rank modules
TABLE 6
Abbreviations for Buffer Type
Description
Serial Stub Terminated Logic (SSTL_18)
CMOS Levels
Open Drain. The corresponding pin has 2 operational states, active low and tristate,
and allows multiple devices to share as a wire-OR.
Rev. 1.22, 2007-06
12
07042006-834B-Z31V