IS43R32800B-6B-TR ISSI, Integrated Silicon Solution Inc, IS43R32800B-6B-TR Datasheet - Page 36
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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
36
S ELF
Self -refresh mode is entered by issuing a REF S command (/CS=/RA S=/CAS =L ,/WE =H,C KE =L ).
Once the self-refresh is initiated, it is maintained as long as C KE is kept low. During the self-
refresh mode, CK E i s asynchronous and the only enable input , all other inputs including CL K a re
disabled and ignored, so that power consumption dueto synchronous inputs is saved. T o exit the
self-refresh, supplying stable CLK inputs, asserting DESEL or NOP command and then asserting
CK E f or longer than tX SNR/ tXSRD.
BA 0,1
A0-1 1
/RAS
/CAS
/CLK
CL K
CK E
REFRESH
/WE
/CS
Self Refresh Exit
Self-R efresh
Integrated Silicon Solution, Inc. — www.issi.com
tX SN R
X
X
tX SR D
Y
Y
Rev. 00D
03/19/08