IS43R32800B-6B-TR ISSI, Integrated Silicon Solution Inc, IS43R32800B-6B-TR Datasheet - Page 7
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IS43R32800B-6B-TR
Manufacturer Part Number
IS43R32800B-6B-TR
Description
IC DDR SDRAM 256MBIT 144BGA
Manufacturer
ISSI, Integrated Silicon Solution Inc
Datasheet
1.IS43R32800B-6BL-TR.pdf
(39 pages)
Specifications of IS43R32800B-6B-TR
Format - Memory
RAM
Memory Type
DDR SDRAM
Memory Size
256M (8Mx32)
Speed
166MHz
Interface
Parallel
Voltage - Supply
2.3 V ~ 2.7 V
Operating Temperature
0°C ~ 70°C
Package / Case
144-BGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
IS43R32800B
Integrated Silicon Solution, Inc. — www.issi.com
Rev. 00D
03/19/08
FUNCTIONAL TRUTH TABLE
ROW A CT IV E H
RE AD(Au to-
Current State
Precharge
Disabled)
IDLE
/CS /RAS /CAS /WE Address
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
H
H
H
X
L
L
L
L
L
L
L
L
X
L
L
L
L
X
X
X
H
H
H
H
H
H
H
H
X
H
L
L
L
H
H
H
L
L
L
L
L
L
L
L
X
X
H
H
X
H
H
L
H
L
H
L
H
L
H
L
L
L
X X
L
H
L
H
L
H
L
X
X
BA
BA , C A, A8
BA , R A
BA , A 8
X
Op-C ode, Mode-
Add
BA
BA , C A, A8
BA , C A, A8
BA , R A
BA , A 8
X
Op-C ode, Mode-
Add
X
X
BA
BA , C A, A8
BA , C A, A8
BA , R A
BA , A 8
Op-C ode, Mode-
Add
X
X
D ES EL
N OP
R EF A
R EF A
D ES EL
C ommand
A CT
A CT
A CT
RE AD / WRITE
MR S
DE SE L
TER M
RE AD / READA
WR ITE / WR ITEA
PRE / PRE A
NOP
PRE / PRE A
MR S
NOP
TER M
RE AD / REA DA
WR IT E / WR ITEA
PRE / PRE A
MR S
REF A
TERM
N OP
N OP
A uto-Refresh
M ode Register Set
I LLEGA L
P recharge / Precharge All
I LLE GA L
T erminate Burst
T erminate Burst, Precharge
I LLE GAL
Action
NO P
NO P
ILLEGAL
Bank Active, L atch RA
NO P
Begin Read, L atch CA , Determine
Auto-Precharge
Begin Write, L atch CA , Determine
Auto-Precharge
Bank Active / ILLEG AL
I LLE GA L
I LLE GAL
ILLE GAL
NOP (C ontinueBurst to END)
NO P (Continue Burst to END)
Terminate Burst, L atch CA , B egin
New Read, Determine Auto-
Precharge
ILLE GA L
Bank Active / ILLE GAL
Notes
2
2
4
5
5
2
3
2
7