m52s64164a Elite Semiconductor Memory Technology Inc., m52s64164a Datasheet - Page 27

• Manufacturer Part Number: m52s64164a
• Description: 1m X 16 Bit X 4 Banks Synchronous Dram
• Manufacturer: Elite Semiconductor Memory Technology Inc.

ESMT
Abbreviations :
*Note : 1. All entries assume the CKE was active (High) during the precharge clock and the current clock cycle.
Elite Semiconductor Memory Technology Inc.
Precharging
Refreshing
Accessing
Activating
Register
Current
Mode
State
Row
2. Illegal to bank in specified state ; Function may be legal in the bank indicated by BA, depending on the state of the
3. Must satisfy bus contention, bus turn around, and/or write recovery requirements.
4. NOP to bank precharge or in idle state. May precharge bank indicated by BA (and A10/AP).
5. Illegal if any bank is not idle.
bank.
CS
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
RA = Row Address
NOP = No Operation Command
RAS
H
H
H
H
H
H
H
H
H
H
H
X
X
X
X
L
L
L
L
L
L
L
L
L
CAS
H
X
H
H
H
X
H
H
H
H
X
H
H
X
H
H
X
L
L
L
L
L
L
L
WE
X
H
X
H
X
X
H
X
H
X
X
X
X
X
X
X
H
X
X
L
L
L
L
L
BA
BA
BA
BA
BA
BA
BA
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
A10/AP
A10/AP
ADDR
CA
RA
CA
RA
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
NOP
NOP
ILLEGAL
ILLEGAL
ILLEGAL
NOP
ILLEGAL
NOP
NOP
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOP
NOP
ILLEGAL
ILLEGAL
ILLEGAL
NOP
NOP
ILLEGAL
ILLEGAL
ILLEGAL
BA = Bank Address
CA = Column Address
Idle after tRP
Idle after tRP
Idle after tRP
Row Active after tRCD
Row Active after tRCD
Idle after tRFC
Idle after tRFC
Idle after 2clocks
Idle after 2clocks
ACTION
Publication Date: Sep. 2008
Revision: 1.4
M52S64164A
AP = Auto Precharge
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Note
2
2
2
4
2
2
2
2