IS45S32400B-7BA1-TR ISSI, Integrated Silicon Solution Inc, IS45S32400B-7BA1-TR Datasheet - Page 12
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IS45S32400B-7BA1-TR
Manufacturer Part Number
IS45S32400B-7BA1-TR
Description
Manufacturer
ISSI, Integrated Silicon Solution Inc
Type
SDRAMr
Datasheet
1.IS45S32400B-7BA1-TR.pdf
(60 pages)
Specifications of IS45S32400B-7BA1-TR
Organization
4Mx32
Density
128Mb
Address Bus
14b
Access Time (max)
6.5/5.4ns
Maximum Clock Rate
143MHz
Operating Supply Voltage (typ)
3.3V
Operating Temp Range
-40C to 85C
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
3V
Supply Current
130mA
Pin Count
90
Mounting
Surface Mount
Operating Temperature Classification
Industrial
Lead Free Status / Rohs Status
Not Compliant
IS45S32400B
12
CKE RELATED COMMAND TRUTH TABLE
Current State
Self-Refresh (S.R.)
Self-Refresh Recovery Idle After t
Power-Down (P.D.)
Both Banks Idle
Any state
other than
listed above
Notes:
1. H : High level, L : low level, X : High or low level (Don’t care).
2. CKE Low to High transition will re-enable CLK and other inputs asynchronously. A minimum setup
3. Power down and Self refresh can be entered only from the both banks idle state.
4. Must be legal command as defined in Operative Command Table.
5. Illegal if t
time must be satisfied
before any command other than EXIT.
xsr
is not satisfied.
Operation
INVALID, CLK (n - 1) would exit S.R.
Self-Refresh Recovery
Self-Refresh Recovery
Illegal
Illegal
Maintain S.R.
Idle After t
Illegal
Illegal
Begin clock suspend next cycle
Begin clock suspend next cycle
Illegal
Illegal
Exit clock suspend next cycle
Maintain clock suspend
INVALID, CLK (n - 1) would exit P.D.
EXIT P.D. --> Idle
Maintain power down mode
Refer to operations in Operative Command TableH
Refer to operations in Operative Command TableH
Refer to operations in Operative Command TableH
Auto-Refresh
Refer to operations in Operative Command TableH
Refer to operations in Operative Command TableH
Refer to operations in Operative Command TableH
Refer to operations in Operative Command TableH
Self-Refresh
Refer to operations in Operative Command TableH
Power-Down
Refer to operations in Operative Command TableH
Begin clock suspend next cycle
Exit clock suspend next cycle
Maintain clock suspend
rc
rc
(3)
(3)
(2)
(2)
(2)
(2)
(5)
(5)
(4)
(1)
n-1
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
CKE
Integrated Silicon Solution, Inc. — www.issi.com
X
H
H
H
H
H
H
H
H
H
X
H
H
H
H
H
H
X
H
H
n
L
L
L
L
L
L
L
L
L
L
L
L
L
L
CS
X
H
X
H
H
X
X
X
X
X
H
H
X
X
X
X
X
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
RAS
X
X
H
H
X
X
H
H
X
H
H
X
X
X
X
X
X
H
X
H
X
X
X
X
X
L
L
L
L
L
L
L
L
L
CAS
X
X
H
X
X
X
H
X
X
H
X
X
X
X
X
X
X
X
H
X
X
H
X
X
X
X
X
L
L
L
L
L
L
L
WE
H
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
X
X
X
L
X
X
X
X
X
Op - Code
Op - Code
Address
—
—
—
—
—
—
—
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
11/12/09
Rev. C