參數(shù)資料
型號： AS9C25512M2018L-250FC
廠商： ALLIANCE SEMICONDUCTOR CORP
元件分類： DRAM
英文描述： 2.5V 512/256K x 18 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
中文描述： 512K X 18 DUAL-PORT SRAM, 6.5 ns, PBGA208
封裝： FBGA-208
文件頁數(shù)： 15/30頁
文件大小： 1100K
代理商： AS9C25512M2018L-250FC
AS9C25512M2018L
AS9C25256M2018L
9/24/04, v.1.2
Alliance Semiconductor
P. 15 of 30
Timing waveform of address counter
[6]
Notes:
1. Both Flow-through and Pipeline Outputs indicated. A particular port is configured in Flow-through mode if PL/FT for that port is driven low,
and in Pipeline mode if PL/FT is driven high or left unconnected.
2. Parameters t
CYC
,t
CH
and t
CL
are different in Flow-through and Pipeline modes of operation (Refer AC Timing characteristics).
3. CE is an internal signal. CE = H implies 'Chip is Deselected' (CE0 = H or CE1 =L), CE = L implies 'Chip is Selected' (CE0 = L and CE1 =H).
Timings indicated for CE hold good for CE0 and CE1.
4. These cycles indicate that Counter works independent of all memory controls including R/W,CE and BEn.
5. If a Hold operation is performed for a Read access, the Data-out is held valid for the subsequent clock cycle also.
6. All timings are similar for both ports.
CLK
CE
[3]
R/W
[Pipeline Mode]
DATA OUT
[1]
[Flow-through Mode]
t
CEH
t
CES
t
CYC[2]
t
CL
t
CH
Write
Load
(
A1
)
DATA OUT
[1]
Incr
A1
ADDRESS
A1
A1+1
A1+2
A1+2
A1+1
A1+2
A1+2
A2
A2+1
A2+1
A2
A1
D1
D1+1
D1+2
D1+2
Q1
Q1+1
Q3
Q4
Q1
Q1+1
Q4
Q1+2
DATA IN
RPT
INC
ADS
ADDRESS
INTERNAL
Hold
Rept
t
WH
t
WS
t
AS
t
AH
t
ADSS
t
ADSH
t
INCS
t
INCH
t
RPTS
t
RPTH
t
DS
t
DH
t
HZCF
t
OHF
t
CDF
t
LZCF
Read
t
LZCP
t
CDP
t
OHP
t
HZCP
A2
Q1+2
Don’t care
Undefined
[4]
[5]
[5]
Incr
Write
Write
Write
Read
Incr
Read
Incr
Read
Hold
Load
(
A2
)
Dsel
Dsel
Incr
Dsel
Hold
Dsel
Rept
相關(guān)PDF資料
PDF描述
AS9C25512M2018L-250FI 2.5V 512/256K x 18 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
AS9C25512M2018L-250TC 2.5V 512/256K x 18 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
AS9C25512M2018L-250TI 2.5V 512/256K x 18 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
AS9C25512M2018L-133BC TERM. F/O CABLE ST-SC/ DPLX/RISER/2M/BLUE
AS9C25256M2018L-133BC TERM. F/O CABLE ST-SC/ DPLX/RISER/3M/BLUE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AS9C25512M2018L-250FI 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V 512/256K x 18 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
AS9C25512M2018L-250TC 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V 512/256K x 18 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
AS9C25512M2018L-250TI 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:2.5V 512/256K x 18 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
AS-9W-K 制造商:FUJITSU 功能描述:
ASA 制造商:EMERSON-NETWORKPOWER 制造商全稱:Emerson Network Power 功能描述:ASA 6W Series
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