IS43R32800B-6B-TR ISSI, Integrated Silicon Solution Inc, IS43R32800B-6B-TR Datasheet - Page 8

• Manufacturer Part Number: IS43R32800B-6B-TR
• Description: IC DDR SDRAM 256MBIT 144BGA
• Manufacturer: ISSI, Integrated Silicon Solution Inc

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
8
FUNCTIONAL TRUTH TABLE (continued)
Auto-Precharge
Auto-Precharge
WR IT E( Auto-
Current State /CS /RAS /CAS /WE Addres s
WRITE with
Precharge
READ with
Disabled)
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
H
H
H
H
X
L
L
L
L
X
L
L
L
L
X
L
L
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
H
X
H
H
X
H
H
H
L
H
L
H
L
H
L
H
L
H
L
L
L
L
L
L
L
BA
BA , C A, A8
BA , C A, A8
BA , R A
BA , A 8
Op-C ode, Mode-
Add
BA
BA , C A, A8
BA , C A, A8
BA , R A
BA , A 8
Op-C ode, M ode-
Add
BA
BA , C A, A8
BA , C A, A8
BA , R A
BA , A 8
Op-C ode, Mode-
Add
X
X
X
X
X
X
X
X
X
A CT
Command
WR ITE / WR IT EA
ACT
PRE / PRE A
MR S
ACT
PRE / PRE A
MR S
READ / READA
WR IT E / WR ITEA
PRE / PRE A
DES EL
NOP
REF A
DES EL
NOP
WRIT E / WR IT EA
REF A
DES EL
NOP
REF A
TERM
READ / READA
TERM
READ / READA
TERM
MRS
Integrated Silicon Solution, Inc. — www.issi.com
T erminate Burst, Precharge
I LL EGAL
P recharge / ILLEGAL
I LLEGAL
P recharge / ILLEGAL
I LLEGAL
I LL EGAL
I LLEGAL
I LLEGAL
Action
NO P (Continue Burst to END)
NO P (Continue Burst to END)
IL LE GAL
Terminate Burst, L atchCA , B egin
Read, Determine Auto-Precharge
Terminate Burst, L atchCA , B egin
Write, Determine Auto-Precharge
Bank Active / ILLE GAL
NO P (Continue Burst to END)
NO P (Continue Burst to END)
ILLE GAL
ILLE GAL
IL LE GAL
Bank Active / ILLE GAL
NOP (Continue Burst to END)
NOP (Continue Burst to END)
ILLE GAL
ILLEGAL
ILLE GAL
Bank Active / ILLEGAL
Notes
3
3
2
2
2
2
2
Rev. 00D
03/19/08