LDS-L9D340G64BG2 LOGIC Devices Incorporated, LDS-L9D340G64BG2 Datasheet - Page 149

• Manufacturer Part Number: LDS-L9D340G64BG2
• Description: 4.0 Gb, Ddr3, 64 M X 64 Integrated Module Imod
• Manufacturer: LOGIC Devices Incorporated

LOGIC Devices Incorporated
F
F
ODT OFF D
IGURE
IGURE
Command
DQS, DQS#
Command
Add ress
107 - S
108 - ODT D
ODT
CK#
CKE
CK#
ODT
CK
R
CK
R
DQ
TT
TT
NOP
READ
T0
Vali d
T0
URING
TT
Notes:
YNCHRONOUS
NOP
T1
NOP
T1
Notes:
READS
1. ODT must be disabled externally during READs by driving ODT LOW. For example, CL = 6; AL = CL - 1 = 5; RL = AL +
www.logicdevices.com
URING
NOP
CL = 11; CWL = 5; ODTL on = CWL + AL - 2 = 8; ODTL off = CWL + AL - 2 = 8. R
NOP
T2
T2
1. WL = 7. R
2. ODT must be held HIGH for at least ODTH4 after assertion (T1).
3. ODT must be kept HIGH ODTH4 (BC4) or ODTH8 (BL8) after the WRITE command (T7).
4. ODTH is measured from ODT first registered HIGH to ODT first registered LOW or from the registration of the WRITE
5. Although ODTH4 is satisfied from ODT registered HIGH at T6, ODT must not go LOW before T11 as ODTH4 must also be
ODTH4
command with ODT HIGH to ODT registered LOW.
satisfied from the registration of the WRITE command at T7.
ODTL on = WL - 2
NOP
READ
NOP
ODT (BC4)
T3
T3
NOP
TT
NOP
T4
T4
ODTL off = CWL + AL - 2
_
S
NOM
R
TT
_
NOM
RL = AL + CL
is enabled. R
NOP
NOP
T5
T5
NOP
NOP
T6
T6
TT
t AON (MIN)
_
t AON (MAX)
WRS4
WR
ODTL off = WL - 2
T7
NOP
T7
TT
is disabled.
4.0 Gb, DDR3, 64 M x 64 Integrated Module (IMOD)
ODTH4 (MIN)
ODTL on = WL - 2
NOP
NOP
T8
T8
R
149
TT
_
NOM
ODTH4
NOP
NOP
T9
T9
t AOF (MAX)
t AOF (MIN)
t AOF (MIN)
t AOF (MAX)
PRELIMINARY INFORMATION
T10
NOP
NOP
T10
ODTL on = CWL + AL - 2
NOP
NOP
T11
T11
t AON (MIN)
DI
b
High Performance, Integrated Memory Module Product
TT
b + 1
t AON (MAX)
DI
_
NOP
NOP
T12
NOM
T12
b + 2
DI
is enabled. R
b + 3
DI
ODTLoff = WL - 2
NOP
NOP
T13
T13
b + 4
DI
R
TT
_
b + 5
NOM
DI
NOP
NOP
T14
T14
TT
b + 6
DI
_
WR
b + 7
DI
NOP
Transitioning
is a “Don’t Care.”
NOP
T15
Transitioning
T15
L9D340G64BG2
t AON (MAX)
Jun 08, 2010 LDS-L9D340G64BG2-B
T16
T16
NOP
NOP
R
TT
_
NOM
Don ’t Care
Don ’t Care
t AOF (MIN)
t AOF (MAX)
T17
T17
NOP
NOP