IS42S16800B-7TL-TR ISSI, Integrated Silicon Solution Inc, IS42S16800B-7TL-TR Datasheet - Page 12
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IS42S16800B-7TL-TR
Manufacturer Part Number
IS42S16800B-7TL-TR
Description
Manufacturer
ISSI, Integrated Silicon Solution Inc
Type
SDRAMr
Datasheet
1.IS42S16800B-7TL-TR.pdf
(60 pages)
Specifications of IS42S16800B-7TL-TR
Organization
8Mx16
Density
128Mb
Address Bus
14b
Access Time (max)
6/5.4ns
Maximum Clock Rate
143MHz
Operating Supply Voltage (typ)
3.3V
Package Type
TSOP-II
Operating Temp Range
0C to 70C
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
3V
Supply Current
130mA
Pin Count
54
Mounting
Surface Mount
Operating Temperature Classification
Commercial
Lead Free Status / Rohs Status
Compliant
IS42S81600B, IS42S16800B
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.
srx
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)
Integrated Silicon Solution, Inc. — www.issi.com —
(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
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
H
H
H
H
H
H
H
H
X
X
L
X
X
L
X
L
X
X
X
X
X
X
L
L
L
X
L
L
L
X
X
X
X
X
CAS
H
H
H
H
H
X
X
L
X
X
X
L
X
X
L
X
X
X
X
X
X
X
X
L
L
X
X
L
L
X
X
X
X
X
WE
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
H
X
X
X
H
X
X
X
X
X
L
L
1-800-379-4774
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
06/11/09
Rev. G