M12L64322A_1 Datasheet, PDF (25/46 Pages) Elite Semiconductor Memory Technology Inc. – 512K x 32 Bit x 4 Banks Synchronous DRAM

ESMT
M12L64322A
Operation temperature condition -40°C ~ 85°C
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 LHH
BA
RA
Row (&Bank) Active ; Latch RA
L LHL
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 LHH
BA
RA
ILLEGAL
L LHL
BA
A10/AP Precharge
L
L
L
X
X
X
ILLEGAL
HXXX
X
X
NOP (Continue Burst to End Æ Row Active)
L HHH
X
X
NOP (Continue Burst to End Æ Row Active)
L HH L
X
X
Term burst Æ 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 LHH
BA
RA
ILLEGAL
L LHL
BA
A10/AP Term burst, Precharge timing for Reads
L
L
L
X
X
X
ILLEGAL
HXXX
X
X
NOP (Continue Burst to End Æ Row Active)
L HHH
X
X
NOP (Continue Burst to End Æ Row Active)
L HH L
X
X
Term burst Æ 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 LHH
BA
RA
ILLEGAL
L LHL
BA
A10/AP Term burst, Precharge timing for Writes
L
L
L
X
X
X
ILLEGAL
HXXX
X
X
NOP (Continue Burst to End Æ Precharge)
L HHH
X
X
NOP (Continue Burst to End Æ Precharge)
L HH L
X
X
ILLEGAL
LHLX
BA CA, A10/AP ILLEGAL
L LHX
BA
RA, RA10 ILLEGAL
L
L
L
X
X
X
ILLEGAL
HXXX
X
X
NOP (Continue Burst to End Æ Precharge)
L HHH
X
X
NOP (Continue Burst to End Æ Precharge)
L HH L
X
X
ILLEGAL
LHLX
BA CA, A10/AP ILLEGAL
L LHX
BA
RA, RA10 ILLEGAL
L
L
L
X
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: Mar. 2007
Revision : 1.2
25/46