Internet Data Sheet
HY[B/I]25D256[16/40/80]0C[E/C/F/T](L)
256 Mbit Double-Data-Rate SDRAM
Ball#/Pin#
Name
Pin
Type
Buffer
Type
Function
Data Strobe ×16 organization
E3, 51
UDQS
I/O
SSTL
SSTL
Data Strobe Upper Byte
Data Strobe Lower Byte
E7, 16
LDQS
I/O
Data Mask ×16 organization
F3, 47
UDM
LDM
I
I
SSTL
SSTL
Data Mask Upper Byte
Data Mask Lower Byte
F7, 20
Power Supplies
F1, 49
VREF
AI
—
—
I/O Reference Voltage
A9, B2, C8, D2, VDDQ
E8, 3, 9, 15, 55,
61
PWR
I/O Driver Power Supply
A7, F8, M7, 1, VDD
18, 33
PWR
PWR
—
—
Power Supply
Power Supply
A1, B8, C2, D8, VSSQ
E2, 6, 12, 52,
58, 64
A3, F2, M3, 34, VSS
PWR
—
Power Supply
48, 66
Not Connected
A2, 65
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
—
—
—
—
—
—
—
—
—
—
—
Not Connected
Note: ×4 organization
Not Connected
A8, 2
Note: ×4 organization
Not Connected
B1, 63
B9, 4
Note: ×8 and ×4 organisation
Not Connected
Note: ×8 and ×4 organization
Not Connected
C1, 60
C3, 59
C7, 8
Note: ×8 and ×4 organization
Not Connected
Note: ×4 organization
Not Connected
Note: ×4 organization
Not Connected
C9, 7
Note: ×8 and ×4 organization
Not Connected
D1, 57
D9, 10
E1, 54
Note: ×8 and ×4 organization
Not Connected
Note: ×8 and ×4 organization
Not Connected
Note: ×8 and ×4 organization
Rev. 2.3, 2007-03
9
03062006-8CCM-VPUW
QIMONDA [ QIMONDA AG ]
