Internet Data Sheet
HY[B/I]18T256[40/80/16]0B[C/F](L)
256-Mbit Double-Data-Rate-Two SDRAM
Ball#
Name
Ball
Type
Buffer
Type
Function
F9
C8
C2
D7
D3
D1
D9
B1
B9
DQ7
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
SSTL
SSTL
SSTL
SSTL
SSTL
SSTL
SSTL
SSTL
SSTL
Data Signal 15:0
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
Data Strobe ×16 Organization
B7
A8
F7
E8
UDQS
UDQS
LDQS
LDQS
I/O
I/O
I/O
I/O
SSTL
SSTL
SSTL
SSTL
Data Strobe Upper Byte
Data Strobe Lower Byte
Data Mask ×16 Organization
B3
F3
UDM
LDM
I
I
SSTL
SSTL
Data Mask Upper Byte
Data Mask Lower Byte
Power Supplies ×16 Organization
J2
VREF
AI
–
–
I/O Reference Voltage
C1, C3, C7, C9, VDDQ
E9, G1, G3, G7,
G9
PWR
I/O Driver Power Supply
J1
VDDL
PWR
PWR
–
–
Power Supply
Power Supply
A1, E1, J9, M9, VDD
R1
A7, A9, D2, D8, VSSQ
E7, F2, F8, H2,
H8
PWR
–
Power Supply
J7
VSSDL
PWR
PWR
–
–
Power Supply
Power Supply
A3, E3, J3, N1, VSS
P9
Not Connected ×16 Organization
A2, E2, L1, R3, NC
R7, R8
NC
–
Not Connected
Other Balls ×16 Organization
K9 ODT
I
SSTL
On-Die Termination Control
Rev. 1.11, 2007-07
16
11172006-LBIU-F1TN