HDD16M64F8-13B 查看數據表（PDF） - Hanbit Electronics Co.,Ltd
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HDD16M64F8-13B
Hanbit Electronics Co.,Ltd
HDD16M64F8-13B Datasheet PDF : 11 Pages
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HANBit
HDD16M64F8
4. The maximum limit for this parameter is not a device limit. The device will operate with a great value for this
parameter, but system performance (bus turnaround) will degrade accordingly.
SIMPLIFIED TRUTH TABLE
COMMAND
CKE
n-1
CKE
n
/CS
/R
A
S
/C
A /WE DM
S
BA
0,1
Register Extended MRS
H
X
L LLL X
Register Mode register set
H
X
L LLL X
Refresh
Auto refresh
Self Entry
refres
Exit
h
H
H
L LLHX
L
L HHH
L
H
X
H XX X
Bank active & row addr.
H
X
L LHH X
V
Auto precharge
Read &
disable
column
H
Auto precharge
address
eable
X
L HLH X
V
Auto precharge
Write &
disable
column
H
Auto precharge
address
enable
H
X
L HL
X
V
L
Burst Stop
H
X
L HH L X
Precharg Bank selection
e
All banks
V
H
X
L LHL X
X
Clock suspend or
active power down
Entry
Exit
H XX X
H
L
X
L VVV
L
H
X XXX X
Entry
Precharge power
H XX X
H
L
X
L HHH
down mode
H XX X
Exit
L
H
X
L VVV
DM
H
X
V
No operation command
HX X
X
H
X
X
LH H
H
A10/
AP
A11
A9~A0
OP code
OP code
X
X
Row address
L
Column
Address
H
(A0 ~ A9)
L
Column
Address
H
(A0 ~ A9)
X
L
X
H
X
X
X
X
(V=Valid, X=Don't care, H=Logic high, L=Logic low)
Notes :
1. OP Code : Operand code
A0 ~ A11 & BA0 ~ BA1 : Program keys. (@ MRS)
2. MRS can be issued only at all banks precharge state.
A new command can be issued after 2 CLK cycles of MRS.
3. Auto refresh functions are as same as CBR refresh of DRAM.
The automatical precharge without row precharge command is meant by "Auto".
Auto/self refresh can be issued only at all banks precharge state.
4. BA0 ~ BA1 : Bank select addresses.
If both BA0 and BA1 are "Low" at read, write, row active and precharge, bank A is selected.
If both BA0 is "Low" and BA1 is "High" at read, write, row active and precharge, bank B is selected.
If both BA0 is "High" and BA1 is "Low" at read, write, row active and precharge, bank C is selected.
If both BA0 and BA1 are "High" at read, write, row active and precharge, bank D is selected.
If A10/AP is "High" at row precharge, BA0 and BA1 is ignored and all banks are selected.
NOTE
1,2
1,2
3
3
3
3
4
4
4
4,6
7
5
8
URL : www.hbe.co.kr
REV 1.0(August.2002)
9
HANBit Electronics Co.,Ltd.
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