A43L0616AV-5.5 Ver la hoja de datos (PDF) - AMIC Technology
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A43L0616AV-5.5 Datasheet PDF : 45 Pages
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A43L0616A
Function Truth Table for CKE (Table 2)
Current
State
Self
Refresh
Both
Bank
Precharge
Power
Down
All
Banks
Idle
Any State
Other than
Listed
Above
CKE CKE
n-1 n
CS
RAS CAS
WE Address
H
X
X
X
X
X
X INVALID
Action
L
H
H
X
X
X
X Exit Self Refresh→ABI after tRC
L
H
L
H
H
H
X Exit Self Refresh→ABI after tRC
L
H
L
H
H
L
X ILLEGAL
L
H
L
H
L
X
X ILLEGAL
L
H
L
L
X
X
X ILLEGAL
L
L
X
X
X
X
X NOP(Maintain Self Refresh)
H
X
X
X
X
X
X INVALID
L
H
H
X
X
X
X Exit Power Down→ABI
L
H
L
H
H
H
X Exit Power Down→ABI
L
H
L
H
H
L
X ILLEGAL
L
H
L
H
L
X
X ILLEGAL
L
H
L
L
X
X
X ILLEGAL
L
L
X
X
X
X
X NOP(Maintain Power Down Mode)
H
H
X
X
X
X
X Refer to Table 1
H
L
H
X
X
X
X Enter Power Down
H
L
L
H
H
H
X Enter Power Down
H
L
L
H
H
L
X ILLEGAL
H
L
L
H
L
X
X ILLEGAL
H
L
L
L
H
X
X ILLEGAL
H
L
L
L
L
H
X Enter Self Refresh
H
L
L
L
L
L
X ILLEGAL
L
L
X
X
X
X
X NOP
H
H
X
X
X
X
X Refer to Operations in Table 1
H
L
X
X
X
X
X Begin Clock Suspend next cycle
L
H
X
X
X
X
X Exit Clock Suspend next cycle
L
L
X
X
X
X
X Maintain clock Suspend
Note
6
6
7
7
8
8
8
9
9
Abbreviations : ABI = All Banks Idle
Note: 6. After CKE’s low to high transition to exit self refresh mode. And a time of tRC(min) has to be elapse after CKE’s low
to high transition to issue a new command.
7. CKE low to high transition is asynchronous as if restarts internal clock.
A minimum setup time “tSS + one clock” must be satisfied before any command other than exit.
8. Power-down and self refresh can be entered only from the all banks idle state.
9. Must be a legal command.
(May, 2001, Version 1.0)
42
AMIC Technology, Inc.
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