HY57V641620HG
COMMAND TRUTH TABLE
A10/
ADDR
Command
CKEn-1
CKEn
CS
RAS
CAS
WE
DQM
BA
Note
AP
Mode Register Set
H
H
H
H
X
L
H
L
L
X
H
L
L
X
H
H
L
X
H
H
X
OP code
No Operation
X
X
X
X
X
X
X
Bank Active
L
RA
V
V
Read
L
L
L
H
H
L
L
L
H
L
CA
CA
X
Read with Autoprecharge
Write
H
L
H
H
X
X
X
V
Write with Autoprecharge
Precharge All Banks
Precharge selected Bank
Burst Stop
H
H
X
V
X
X
L
L
H
H
L
L
L
H
H
H
H
X
L
X
V
X
X
DQM
X
X
Auto Refresh
H
X
L
L
L
L
L
H
L
Burst-READ-Single-
WRITE
A9 Pin High
(Other Pins OP code)
H
H
L
X
X
Entry
L
H
L
L
X
H
X
H
X
H
X
V
L
X
H
X
H
X
H
X
V
H
X
H
X
H
X
H
X
V
1
X
Self Refresh
Exit
L
H
L
H
L
X
X
X
H
L
Entry
Precharge
power down
X
X
H
L
Exit
H
H
L
Entry
Clock
Suspend
Exit
H
L
L
X
X
H
X
Note :
1. Exiting Self Refresh occurs by asynchronously bringing CKE from low to high
2. X = Don′t care, H = Logic High, L = Logic Low. BA =Bank Address, RA = Row Address, CA = Column Address,
Opcode = Operand Code, NOP = No Operation
Rev. 1.0/Jan. 02
11
HYNIX [ HYNIX SEMICONDUCTOR ]
