參數(shù)資料
型號: HYE18P32161ACL85
廠商: INFINEON TECHNOLOGIES AG
元件分類: 圓形連接器
英文描述: Circular Connector; MIL SPEC:MIL-DTL-38999 Series II; Body Material:Metal; Series:JT; No. of Contacts:11; Connector Shell Size:18; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Body Style:Straight RoHS Compliant: No
中文描述: 32M的異步/頁的CellularRAM
文件頁數(shù): 30/33頁
文件大?。?/td> 641K
代理商: HYE18P32161ACL85
HYE18P32161AC(-/L)70/85
32M Asynch/Page CellularRAM
Appendix A: Low-Frequency Mode
Data Sheet
30
V2.0, 2003-12-16
5
Appendix A: Low-Frequency Mode
5.1
Asynchronous Access
Depending on the random access frequency two cases are distinguished:
High Frequency Mode (
100 kHz):
There are no
t
RC
max. time nor CS1/OE max. low time restrictions during subsequent random read or write
accesses.
Low Frequency Mode (< 100 kHz):
There are no
t
RC
max. time nor CS1/OE max. low time restrictions if all control signals (CS1, OE, WE, UB/LB)
follow the modified timing as shown below, see attached timing diagram and timing table. There is no extra mode
register setting necessary.
Figure 19
Low Frequency Mode
Parameter
Symbol
70
85
Unit
Notes
Min.
70
70
Max.
Min.
85
85
Max.
Address stable time for read access
Address stable overlap with write
pulse
Write pulse width
Data to write time overlap
t
ARV
t
AWV
ns
ns
t
WPV
t
DWV
70
70
85
85
ns
ns
A20-A0
ADDRESS
CS1
t
AA
WE
Data Valid
Data Valid
t
ARV
t
AWV
t
WPV
t
DWV
DQ<15:0>
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