參數(shù)資料
型號(hào): AS9C25256M2018L-200BC
廠商: ALLIANCE SEMICONDUCTOR CORP
元件分類(lèi): DRAM
英文描述: TERM. F/O CABLE SC-SC/ DPLX/RISER/3M/BLUE
中文描述: 256K X 18 DUAL-PORT SRAM, 7.5 ns, PBGA256
封裝: BGA-256
文件頁(yè)數(shù): 17/30頁(yè)
文件大?。?/td> 1100K
代理商: AS9C25256M2018L-200BC
AS9C25512M2018L
AS9C25256M2018L
9/24/04, v.1.2
Alliance Semiconductor
P. 17 of 30
Interrupt timing wave form
[2]
Notes:
1. Parameters t
CYC
,t
CH
and t
CL
are different in Flow-through and Pipeline mode of operation and can be different for different ports (Refer AC Timing characteristics).
2. Chip Selected (CE0 = L and CE1 =H). True for both ports.
3. Address indicated is the Internal Address used and is dependent on the Address counter control inputs for that cycle.
4. 7FFFF (3FFFF for AS9C25256M2018L) is the Mailbox for port B and 7FFFE (3FFFE for AS9C25256M2018L) is the Mailbox for port A.
5. “Aa” and “Ab” refer to any other valid address other than 7FFFF or 7FFFE (3FFFF or 3FFFE for AS9C25256M2018L).
t
CYC[1]
t
CH[1]
t
CL[1]
CLK
A
R/W
A[2]
t
WS
t
WH
t
AS
t
AH
INT
A
ADDRESS
A[3]
CLK
B
R/W
B[2]
ADDRESS
B[3]
INT
B
7FFFF
t
WH
t
WS
t
CYC[1]
t
CH[1]
t
CL[1]
t
SINT
t
RINT
t
SINT
t
RINT
t
AH
t
AS
7FFFF
7FFFE
7FFFF
7FFFE
7FFFE
Don’t care
[4]
[4]
Aa
Aa
Aa
Aa
Ab
Ab
Ab
Ab
[5]
[5]
Aa
Ab
相關(guān)PDF資料
PDF描述
AS9C25512M2018L-200BI TERM. F/O CABLE SC-SC/ DPLX/RISER/5M/BLUE
AS9C25256M2018L-200BI TERM. F/O CABLE SC-SC/ DPLX/RISER/10M/BLUE
AS9C25512M2018L-200FC TERM. F/O CABLE SC-SC/ DPLX/RISER/2M/RED
AS9C25256M2018L-200FC TERM. F/O CABLE SC-SC/ DPLX/RISER/3M/RED
ASCELL3911 ER 6C 6#16 SKT RECP LINE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AS9C25256M2018L-200BI 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:2.5V 512/256K x 18 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
AS9C25256M2018L-200FC 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:2.5V 512/256K x 18 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
AS9C25256M2018L-200FI 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:2.5V 512/256K x 18 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
AS9C25256M2018L-200TC 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:2.5V 512/256K x 18 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
AS9C25256M2018L-200TI 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:2.5V 512/256K x 18 Synchronous Dual-port SRAM with 3.3V or 2.5V interface