M12L128168A_06 Datasheet, PDF (24/43 Pages) Elite Semiconductor Memory Technology Inc. – 2M x 16 Bit x 4 Banks Synchronous DRAM

ESMT
M12L128168A
FUNCTION TURTH TABLE (TABLE 1)
Current
State
IDLE
Row
Active
Read
Write
Read with
Auto
Precharge
Write with
Auto
Precharge
CS RAS CAS ^WE BA
ADDR
ACTION
HXXX
X
X
NOP
L HHH
X
X
NOP
L HH L
X
X
ILLEGAL
LHLX
BA CA, A10/AP ILLEGAL
L
L
HH
BA
RA
Row (&Bank) Active ; Latch RA
L
L
H
L
BA
A10/AP NOP
L
L
L
H
X
X
Auto Refresh or Self Refresh
L
L
L
L OP code OP code Mode Register Access
HXXX
X
X
NOP
L HHH
X
X
NOP
L HH L
X
X
ILLEGAL
LHLH
BA CA, A10/AP Begin Read ; latch CA ; determine AP
L
H
L
L
BA CA, A10/AP Begin Write ; latch CA ; determine AP
L
L
HH
BA
RA
ILLEGAL
L
L
H
L
BA
A10/AP Precharge
LLLX
X
X
ILLEGAL
HXXX
X
X
NOP (Continue Burst to End Row Active)
L HHH
X
X
NOP (Continue Burst to End Row Active)
L HH L
X
X
Term burst Row active
LHLH
BA CA, A10/AP Term burst, New Read, Determine AP
L
H
L
L
BA CA, A10/AP Term burst, New Write, Determine AP
L
L
HH
BA
RA
ILLEGAL
L
L
H
L
BA
A10/AP Term burst, Precharge timing for Reads
LLLX
X
X
ILLEGAL
HXXX
X
X
NOP (Continue Burst to End Row Active)
L HHH
X
X
NOP (Continue Burst to End Row Active)
L HH L
X
X
Term burst Row active
LHLH
BA CA, A10/AP Term burst, New Read, Determine AP
L
H
L
L
BA CA, A10/AP Term burst, New Write, Determine AP
L
L
HH
BA
RA
ILLEGAL
L
L
H
L
BA
A10/AP Term burst, Precharge timing for Writes
LLLX
X
X
ILLEGAL
HXXX
X
X
NOP (Continue Burst to End Row Active)
L HHH
X
X
NOP (Continue Burst to End Row Active)
L HH L
X
X
ILLEGAL
LHLX
BA CA, A10/AP ILLEGAL
L
L
H
X
BA
RA, RA10 ILLEGAL
LLLX
X
X
ILLEGAL
HXXX
X
X
NOP (Continue Burst to End Row Active)
L HHH
X
X
NOP (Continue Burst to End Row Active)
L HH L
X
X
ILLEGAL
LHLX
BA CA, A10/AP ILLEGAL
L
L
H
X
BA
RA, RA10 ILLEGAL
LLLX
X
X
ILLEGAL
Note
2
2
4
5
5
2
2
3
2
3
3
2
3
2
2
Elite Semiconductor Memory Technology Inc.
Publication Date: Oct. 2006
Revision: 2.0
24/43