參數(shù)資料
型號: IBM11N16845BB
廠商: IBM Microeletronics
英文描述: 16M x 72 Chip-Kill Protect ECC-on-DIMM Module(16M x 72 帶糾錯代碼保護(hù)的小外形雙列直插動態(tài)RAM模塊)
中文描述: 1,600 × 72片,殺死保護(hù)ECC的上內(nèi)存模塊(1,600 × 72帶糾錯代碼保護(hù)的小外形雙列直插動態(tài)內(nèi)存模塊)
文件頁數(shù): 10/29頁
文件大?。?/td> 502K
代理商: IBM11N16845BB
IBM11N16845BB
IBM11N16845CB
16M x 72 Chip-Kill Protect ECC-on-DIMM Module
Preliminary
IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 10 of 29
75H5487
GA14-4642-00
Revised 11/96
Read-Modify-Write Cycle
Symbol
Parameter
-6R
Unit
Notes
Min
Max
t
RWC
Read-Modify-Write Cycle Time
135
ns
t
RWD
RAS to WE Delay Time
79
ns
1
t
CWD
CAS to WE Delay Time
34
ns
1
t
AWD
Column Address to WE Delay Time
49
ns
1
t
OEH
OE Command Hold Time
10
ns
1. t
WCS
, t
RWD
, t
CWD
, and t
AWD
are not restrictive parameters. They are included in the data sheet as electrical characteristics only. If
t
WCS
t
WCS
(min.), the entire cycle is an early write cycle and the data pin will remain open circuit (high impedance) through the
entire cycle; If t
RWD
t
RWD
(min.), t
CWD
t
CWD
(min.) and t
AWD
t
AWD
(min.), the cycle is a Read-Modify-Write cycle and the data will
contain read from the selected cell: If neither of the above sets of conditions are met, the condition of the data (at access time) is
indeterminate.
EDO Mode Cycle
Symbol
Parameter
-6R
Units
Notes
Min.
Max.
t
HCAS
CAS Pulse Width (EDO Page Mode)
10
10K
ns
t
HPC
EDO Page Mode Cycle Time (Read/Write)
25
ns
t
HPRWC
EDO Page Mode Read Modify Write Cycle Time
60
ns
t
DOH
Data-out Hold Time from CAS
5
ns
t
WHZ
Output buffer Turn-Off Delay from WE
0
10
ns
t
WPZ
WE Pulse Width to Output Disable at CAS High
10
ns
t
CPRH
RAS Hold Time from CAS Precharge
35
ns
t
CPA
Access Time from CAS Precharge
35
ns
1
t
RASP
EDO Page Mode RAS Pulse Width
60
200K
ns
t
OEP
OE High Pulse Width
10
ns
t
OEHC
OE High Hold Time from CAS High
10
ns
1. Measured with the specified current load and 100pF at V
OL
= 0.8V and V
OH
= 2.0V.
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