IS43TR16256A(2012) View Datasheet(PDF) - Integrated Silicon Solution
Part Name
Description
Manufacturer
IS43TR16256A Datasheet PDF : 81 Pages
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IS43/46TR16256A, IS43/46TR16256AL,
IS43/46TR85120A, IS43/46TR85120AL
2. FUNCTION DESCRIPTION
2.1 Simplified State Diagram
Power
applied
Power
On
Reset
Procedure
From
Any state RESET
Initialization
MRS,MPR,
Write
Leveling
ZQCL
ZQ
Calibration
ZQCL
ZQCS
Idle
SRE
SRX
REF
Self
Refresh
Refreshing
Write
Active
Power
Down
PDX
PDE
ACT
PDE
PDX
Activating
Writing
Write
Bank
Active
Read
Write A Read A
Read
Write
Precharge
Power
Down
Reading
Read
Write A
Writing
Write A Read A
PRE,PREA
PRE,PREA PRE,PREA
Read A
Reading
Abbreviation
ACT
PRE
PREA
MRS
REF
ZQCL
Function
Active
Precharge
Precharge All
Mode Register Set
Refresh
ZQ Calibration Long
Abbreviation
Read
Read A
Write
Write A
RESET
ZQCS
Precharging
Function
RD, RDS4, RDS8
RDA, RDAS4, RDAS8
WR, WRS4, WRS8
WRA, WRAS4, WRAS8
Start RESET Procedure
ZQ Calibration Short
Automatic
Sequence
Command
Sequence
Abbreviation
PDE
PDX
SRE
SRX
MPR
Function
Enter Power-down
Exit Power-down
Self-Refresh entry
Self-Refresh exit
Multi-Purpose Register
Integrated Silicon Solution, Inc. – www.issi.com –
6
Rev. 00A
11/14/2012
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