K524G2GACB-A050 Datasheet, PDF (59/94 Pages) Samsung semiconductor – MCP MEMORY

K524G2GACB-A050
MCP MEMORY
13. Functional Truth Table
Current State
PRECHARGE
STANDBY
CS RAS CAS WE
Address
L
H
H
LX
L
H
L
X BA, CA, A10
L
L
H
H BA, RA
L
L
H
L BA, A10
L
L
L
HX
L
L
L
L Op-Code, Mode-Add
L
H
H
LX
L
H
L
H BA, CA, A10
Command
Burst Stop
READ/WRITE
Active
PRE/PREA
Refresh
MRS
Burst Stop
READ/READA
ACTIVE
STANDBY
L
H
L
L BA, CA, A10
WRITE/WRITEA
L
L
H
H BA, RA
Active
L
L
H
L ^{BA, A10}
PRE/PREA
L
L
L
HX
Refresh
L
L
L
L Op-Code, Mode-Add MRS
L
H
H
LX
Burst Stop
L
H
L
H BA, CA, A10
READ/READA
READ
L
H
L
L BA, CA, A10
WRITE/WRITEA
L
L
H
H BA, RA
Active
L
L
H
L BA, A10
PRE/PREA
L
L
L
HX
Refresh
L
L
L
L Op-Code, Mode-Add MRS
L
H
H
LX
Burst Stop
L
H
L
H BA, CA, A10
READ/READA
WRITE
L
H
L
L BA, CA, A10
WRITE/WRITEA
L
L
H
H BA, RA
Active
L
L
H
L BA, A10
PRE/PREA
L
L
L
HX
Refresh
L
L
L
L Op-Code, Mode-Add MRS
L
H
H
LX
Burst Stop
READ with
AUTO
L
H
L
H BA, CA, A10
L
H
L
L BA, CA, A10
PRECHARGE⁶⁾
L
L
H
H BA, RA
(READA)
L
L
H
L ^{BA, A10}
READ/READA
WRITE/WRITEA
Active
PRE/PREA
L
L
L
HX
Refresh
L
L
L
L Op-Code, Mode-Add MRS
Action
ILLEGAL²⁾
ILLEGAL²⁾
Bank Active, Latch RA
ILLEGAL⁴⁾
AUTO-Refresh⁵⁾
Mode Register Set⁵⁾
NOP
Begin Read, Latch CA,
Determine Auto-Precharge
Begin Write, Latch CA,
Determine Auto-Precharge
Bank Active/ILLEGAL²⁾
Precharge/Precharge All
ILLEGAL
ILLEGAL
Terminate Burst
Terminate Burst, Latch CA,
Begin New Read, Determine
Auto-Precharge³⁾
ILLEGAL
Bank Active/ILLEGAL²⁾
Terminate Burst, Precharge¹⁰⁾
ILLEGAL
ILLEGAL
ILLEGAL
Terminate Burst With DM=High,
Latch CA, Begin Read, Determine
Auto-Precharge³⁾
Terminate Burst, Latch CA,
Begin new Write, Determine Auto-
Precharge³⁾
Bank Active/ILLEGAL²⁾
Terminate Burst With DM=High,
Precharge¹⁰⁾
ILLEGAL
ILLEGAL
ILLEGAL
6)
ILLEGAL
6)
6)
ILLEGAL
ILLEGAL
- 59 -
Revision 1.3
November 2009