參數(shù)資料
型號(hào)： IBM11N4845CB
廠商： IBM Microeletronics
英文描述： 4M x 72 Chip-Kill Protect ECC-on-DIMM Module(4M x 72 帶糾錯(cuò)代碼保護(hù)的小外形雙列直插動(dòng)態(tài)RAM模塊)
中文描述： 4米× 72片，殺死保護(hù)ECC的上內(nèi)存模塊（4米× 72帶糾錯(cuò)代碼保護(hù)的小外形雙列直插動(dòng)態(tài)內(nèi)存模塊）
文件頁(yè)數(shù)： 9/29頁(yè)
文件大?。?/td> 542K
代理商： IBM11N4845CB
IBM11N4845BB
IBM11N4845CB
Preliminary
4M x 72 Chip-Kill Protect ECC-on-DIMM Module
75H5485
GA14-4640-00
Revised 11/96
IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 9 of 29
Read Cycle
Symbol
Parameter
-6R
Unit
Notes
Min
Max
t
RAC
Access Time from RAS
—
60
ns
1, 2
t
CAC
Access Time from CAS
—
18
ns
1, 2
t
AA
Access Time from Address
—
30
ns
1, 2
t
OEA
Access Time from OE
—
15
ns
1, 2
t
RCS
Read Command Setup Time
0
—
ns
t
RCH
Read Command Hold Time to CAS
0
—
ns
3
t
RRH
Read Command Hold Time to RAS
0
—
ns
3
t
RAL
Column Address to RAS Lead Time
30
—
ns
t
CLZ
CAS to Output in Low-Z
0
—
ns
t
OES
OE setup time prior to CAS
5
—
ns
t
ORD
OE setup time prior to RAS (Hidden Refresh)
0
—
ns
t
CDD
CAS to D
IN
Delay Time
15
—
ns
5
t
OEZ
Output Buffer Turn-off Delay from OE
—
15
ns
4
t
OFF
Output Buffer Turn-off Delay
—
15
ns
4, 6
1. Measured with the specified current load and 100pF.
2. Access time is determined by the latter of t
RAC
, t
CAC
, t
CPA
, t
AA,
t
OEA
.
3. Either t
RCH
or t
RRH
must be satisfied.
4. t
OFF
(max) and t
OEZ
(max) define the time at which the output achieves the open circuit condition and is not referenced to output
voltage levels.
5. Either t
CDD
or t
ODD
must be satisfied.
6. t
OFF
is referenced from the rising edge of RAS or CAS , whichever is last.
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