IS43R32800B-5B-TR ISSI, Integrated Silicon Solution Inc, IS43R32800B-5B-TR Datasheet - Page 7

• Manufacturer Part Number: IS43R32800B-5B-TR
• Description: IC DDR SDRAM 256MBIT 144BGA
• Manufacturer: ISSI, Integrated Silicon Solution Inc

Specifications of IS43R32800B-5B-TR

• Format - Memory: RAM
• Memory Type: DDR SDRAM
• Memory Size: 256M (8Mx32)
• Speed: 200MHz
• Interface: Parallel
• Voltage - Supply: 2.4 V ~ 2.6 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