hyb18t512160af-5 Infineon Technologies Corporation, hyb18t512160af-5 Datasheet - Page 75
hyb18t512160af-5
Manufacturer Part Number
hyb18t512160af-5
Description
512-mbit Ddr2 Sdram
Manufacturer
Infineon Technologies Corporation
Datasheet
1.HYB18T512160AF-5.pdf
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4
Table 20
Function
(Extended) Mode
Register Set
Auto-Refresh
Self-Refresh Entry
Self-Refresh Exit
Single Bank Precharge H
Precharge all Banks
Bank Activate
Write
Write with Auto-
Precharge
Read
Read with Auto-
Precharge
No Operation
Device Deselect
Power Down Entry
Power Down Exit
1) The state of ODT does not affect the states described in this table. The ODT function is not available during Self Refresh.
2) “X” means “H or L (but a defined logic level)”.
3) Operation that is not specified is illegal and after such an event, in order to guarantee proper operation, the DRAM must
4) All DDR2 SDRAM commands are defined by states of CS, WE, RAS, CAS, and CKE at the rising edge of the clock.
5) Bank addresses (BAx) determine which bank is to be operated upon. For (E)MRS BA[1:0] selects an (Extended) Mode
6) V
7) Self Refresh Exit is asynchronous.
8) Burst reads or writes at BL = 4 cannot be terminated. See
9) The Power Down Mode does not perform any refresh operations. The duration of Power Down is therefore limited by the
Data Sheet
be powered down and then restarted through the specified initialization sequence before normal operation can continue.
Register.
refresh requirements outlined in
REF
must be maintained during Self Refresh operation.
Truth tables
Command Truth Table
CKE
Previous
Cycle
H
H
H
L
H
H
H
H
H
H
H
H
H
L
Chapter 3.24
Current
Cycle
H
H
L
H
H
H
H
H
H
H
H
X
X
L
H
CS RAS CAS WE BA0
L
L
L
H
L
L
L
L
L
L
L
L
L
H
H
L
H
L
L
L
L
X
H
L
L
L
H
H
H
H
H
X
X
H
X
H
75
Chapter 3.21
L
L
L
X
H
H
H
H
L
L
L
L
H
X
X
H
X
H
L
H
H
X
H
L
L
H
L
L
H
H
H
X
X
H
X
H
HYB18T512[40/80/16]0AF–[3/3S/3.7/5]
for details.
BA1
BA
X
X
X
BA
X
BA
BA
BA
BA
BA
X
X
X
X
A[12:11] A10 A[9:0]
OP Code
X
X
X
X
X
Row Address
Column
Column
Column
Column
X
X
X
X
512-Mbit DDR2 SDRAM
X
X
X
L
H
L
H
L
H
X
X
X
X
09112003-SDM9-IQ3P
X
X
X
X
X
Column
Column
Column
Column
X
X
X
X
Rev. 1.3, 2005-01
Truth tables
Note
4)5)
4)
4)6)
4)6)7)
4)5)
4)
4)5)
4)5)8)
4)5)8)
4)5)8)
4)5)8)
4)
4)
4)9)
4)9)
1)2)3)
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