NT5DS32M4AT
NT5DS16M8AT
128Mb Double Data Rate SDRAM
Operating Mode
The normal operating mode is selected by issuing a Mode Register Set Command with bits A7-A11 to zero, and bits A0-A6 set
to the desired values. A DLL reset is initiated by issuing a Mode Register Set command with bits A7 and A9-A11 each set to
zero, bit A8 set to one, and bits A0-A6 set to the desired values. A Mode Register Set command issued to reset the DLL should
always be followed by a Mode Register Set command to select normal operating mode.
All other combinations of values for A7-A11 are reserved for future use and/or test modes. Test modes and reserved states
should not be used as unknown operation or incompatibility with future versions may result.
CAS Latencies
CAS Latency = 2, BL = 4
CK
CK
Read
NOP
NOP
NOP
NOP
NOP
Command
CL=2
DQS
DQ
CAS Latency = 2.5, BL = 4
CK
CK
Read
NOP
NOP
NOP
NOP
NOP
Command
CL=2.5
DQS
DQ
Shown with nominal t , t
, and t
.
Don’ t Care
AC DQSCK
DQSQ
11
REV 1.0
May, 2001
©
NANYA TECHNOLOGY CORP. All rights reserved.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
ETC [ ETC ]
