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AS4SD16M16 Datasheet(PDF) 31 Page - Austin Semiconductor

Part # AS4SD16M16
Description  256 MB: 16 Meg x 16 SDRAM Synchronous DRAM Memory
PDF  51 Pages
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Manufacturer  AUSTIN [Austin Semiconductor]
Direct Link  http://www.austinsemiconductor.com
Logo AUSTIN - Austin Semiconductor

AS4SD16M16 Datasheet(HTML) 31 Page - Austin Semiconductor

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SDRAM
SDRAM
SDRAM
SDRAM
SDRAM
AS4SD16M16
Austin Semiconductor, Inc.
AS4SD16M16
Rev. 1.0 11/02
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
31
INITIALIZE AND LOAD MODE REGISTER2
TIMING PARAMETERS
MIN
MAX
MIN
MAX
tAH
0.8
ns
tCKS
1.5
ns
tAS
1.5
ns
tCMH
0.8
ns
tCH
2.5
ns
tCMS
1.5
ns
tCL
2.5
ns
tMRD
3
2
tCK
tCK(3)
7.5
ns
tRFC
66
ns
tCK(2)
10
ns
tRP
20
ns
tCKH
0.8
ns
-75
UNITS
-75
SYMBOL*
UNITS
SYMBOL*
*CAS latency indicated in parentheses.
NOTES:
1. The mode register may be loaded prior to the AUTO REFRESH cycles if desired.
2. If CS is HIGH at clock HIGH time, all commands applied are NOP, with CKE a “Don’t Care”.
3. JEDEC and PC100 specify three clocks
4. Outputs are guaranteed High-Z after command is issued.
5. A12 should be a LOW at t
P
+ 1.



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