参数资料
型号: 70V3319S133BCGI
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: SRAM
英文描述: 256K X 18 DUAL-PORT SRAM, 4.2 ns, CBGA256
封装: 17 X 17 MM X 1.4 MM, 1 MM PITCH, GREEN, BGA-256
文件页数: 7/23页
文件大小: 222K
代理商: 70V3319S133BCGI
6.42
IDT70V3319/99S
High-Speed 3.3V 256/128K x 18 Dual-Port Synchronous Static RAM
Industrial and Commercial Temperature Ranges
15
R/W
ADDRESS
An
An +1
An + 2
An + 3
An + 4
DATAIN
Dn + 2
CE0
CLK
5623 drw 12
Qn
Qn + 3
DATAOUT
CE1
UB, LB
tCD2
tCKHZ
tCKLZ
tCD2
tSC
tHC
tSB
tHB
tSW tHW
tSA
tHA
tCH2
tCL2
tCYC2
READ
NOP
READ
tSD tHD
(3)
(1)
tSW tHW
WRITE
(4)
Timing Waveform of Pipelined Read-to-Write-to-Read
(OE = VIL)(2)
NOTES:
1. Output state (High, Low, or High-impedance) is determined by the previous cycle control signals.
2.
CE0, UB, LB, and ADS = VIL; CE1, CNTEN, and REPEAT = VIH. "NOP" is "No Operation".
3. Addresses do not have to be accessed sequentially since
ADS = VIL constantly loads the address on the rising edge of the CLK; numbers
are for reference use only.
4. "NOP" is "No Operation." Data in memory at the selected address may be corrupted and should be re-written to guarantee data integrity.
R/W
ADDRESS
An
An +1
An + 2
An + 3
An + 4
An + 5
DATAIN
Dn + 3
Dn + 2
CE0
CLK
5623 drw 13
DATAOUT
Qn
Qn + 4
CE1
UB, LB
OE
tCH2
tCL2
tCYC2
tCKLZ
tCD2
tOHZ
tCD2
tSD
tHD
READ
WRITE
READ
tSC
tHC
tSB
tHB
tSW tHW
tSA
tHA
(3)
(1)
tSW tHW
(4)
Timing Waveform of Pipelined Read-to-Write-to-Read (OE Controlled)(2)
NOTES:
1. Output state (High, Low, or High-impedance) is determined by the previous cycle control signals.
2.
CE0, UB, LB, and ADS = VIL; CE1, CNTEN, and REPEAT = VIH.
3. Addresses do not have to be accessed sequentially since
ADS = VIL constantly loads the address on the rising edge of the CLK; numbers are for reference
use only.
4. This timing does not meet requirements for fastest speed grade. This waveform indicates how logically it could be done if timing so allows.
相关PDF资料
PDF描述
70V9389L9PRFI8 64K X 18 DUAL-PORT SRAM, 20 ns, PQFP128
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710027-5 35 mm2, COPPER ALLOY, TIN FINISH, WIRE TERMINAL
710027-2 35 mm2, COPPER ALLOY, TIN FINISH, WIRE TERMINAL
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