參數(shù)資料
型號(hào): AS9C25256M2036L-250FC
廠商: ALLIANCE SEMICONDUCTOR CORP
元件分類(lèi): DRAM
英文描述: 2.5V 256/128K X 36 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
中文描述: 256K X 36 DUAL-PORT SRAM, 6.5 ns, PBGA208
封裝: FBGA-208
文件頁(yè)數(shù): 17/30頁(yè)
文件大?。?/td> 1109K
代理商: AS9C25256M2036L-250FC
AS9C25256M2036L
AS9C25128M2036L
9/30/04, v.1.3
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. 3FFFF (IFFFF for AS9C25128M2036L
)
is the Mailbox for port B and 3FFFE (IFFFE for AS9C25128M2036L) is the Mailbox for port A.
5. “Aa” and “Ab” refer to any other valid address other than 3FFFF or 3FFFE (IFFFF or IFFFE for AS9C25128M2036L).
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
3FFFF
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
3FFFF
3FFFE
3FFFF
3FFFE
3FFFE
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
AS9C25256M2036L-250FI 2.5V 256/128K X 36 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
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AS9C25256M2036L-250FI 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:2.5V 256/128K X 36 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
AS9C25256M2036L-250PC 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:2.5V 256/128K X 36 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
AS9C25256M2036L-250PI 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:2.5V 256/128K X 36 Synchronous Dual-port SRAM with 3.3V or 2.5V interface
AS9C25512M2018L 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
AS9C25512M2018L-133BC 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