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參數(shù)資料
| 型號： | 70T631S12DDGI |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | SRAM |
| 英文描述： | 256K X 18 DUAL-PORT SRAM, 12 ns, PQFP144 |
| 封裝： | 20 X 20 MM, 1.40 MM HIEGHT, GREEN, TQFP-144 |
| 文件頁數(shù)： | 8/27頁 |
| 文件大?。?/td> | 220K |
| 代理商： | 70T631S12DDGI |
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IDT70T633/1S
High-Speed 2.5V 512/256K x 18 Asynchronous Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
16
Timing Waveform of Semaphore Read after Write Timing, Either Side(1)
NOTES:
1. DOR = DOL = VIL,
CE0L = CE0R = VIH; CE1L = CE1R = VIL. Refer also to Truth Table II for appropriate UB/LB controls.
2. All timing is the same for left and right ports. Port "A" may be either left or right port. "B" is the opposite from port "A".
3. This parameter is measured from R/
W"A" or SEM"A" going HIGH to R/W"B" or SEM"B" going HIGH.
4. If tSPS is not satisfied,the semaphore will fall positively to one side or the other, but there is no guarantee which side will be granted the semaphore flag.
Timing Waveform of Semaphore Write Contention(1,3,4)
NOTES:
1.
CE0 = VIH and CE1 = VIL are required for the duration of both the write cycle and the read cycle waveforms shown above. Refer to Truth Table II for details and for
appropriate
UB/LB controls.
2. "DATAOUT VALID" represents all I/O's (I/O0 - I/O17) equal to the semaphore value.
SEM(1)
5670 drw 12
tAW
tEW
I/O
VALID ADDRESS
tSAA
R/
W
tWR
tOH
tACE
VALID ADDRESS
DATA
VALID
IN
DATAOUT
tDW
tWP
tDH
tAS
tSWRD
Read Cycle
Write Cycle
A0-A2
OE
VALID(2)
tSOP
.
tSOE
SEM"A"
5670 drw 13
tSPS
MATCH
R/
W"A"
MATCH
A0"A"-A2"A"
SIDE
"A"
(2)
SEM"B"
R/
W"B"
A0"B"-A2"B"
SIDE
"B"
(2)
.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 70T631S15BC | 制造商:Integrated Device Technology Inc 功能描述:SRAM Chip Async Dual 2.5V 4M-Bit 256K x 18 15ns 256-Pin CABGA Tray 制造商:Integrated Device Technology Inc 功能描述:SRAM ASYNC DUAL 2.5V 4.5MBIT 256KX18 15NS 256BGA - Rail/Tube 制造商:Integrated Device Technology Inc 功能描述:256K X 18 STD-PWR, 2.5V DUAL PORT RAM |
| 70T631S15BC8 | 制造商:Integrated Device Technology Inc 功能描述:SRAM Chip Async Dual 2.5V 4M-Bit 256K x 18 15ns 256-Pin CABGA T/R 制造商:Integrated Device Technology Inc 功能描述:SRAM ASYNC DUAL 2.5V 4.5MBIT 256KX18 15NS 256BGA - Tape and Reel 制造商:Integrated Device Technology Inc 功能描述:256K X 18 STD-PWR, 2.5V DUAL PORT RAM |
| 70T631S15BF | 功能描述:靜態(tài)隨機存取存儲器 256K X 18 STD-PWR, 2.5V DUAL PORT RAM RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
| 70T631S15BF8 | 制造商:Integrated Device Technology Inc 功能描述:SRAM Chip Async Dual 2.5V 4M-Bit 256K x 18 15ns 208-Pin CABGA T/R 制造商:Integrated Device Technology Inc 功能描述:SRAM ASYNC DUAL 2.5V 4.5MBIT 256KX18 15NS 208FPBGA - Tape and Reel 制造商:Integrated Device Technology Inc 功能描述:256K X 18 STD-PWR, 2.5V DUAL PORT RAM |
| 70T633S10BC | 功能描述:靜態(tài)隨機存取存儲器 512K X 18 STD-PWR, 2.5V DUAL PORT RAM RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
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