- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377972 > ML65245 (Fairchild Semiconductor Corporation) High Speed Octal Buffer Transceivers(高速八通道緩沖收發(fā)器) PDF資料下載
參數(shù)資料
| 型號： | ML65245 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | High Speed Octal Buffer Transceivers(高速八通道緩沖收發(fā)器) |
| 中文描述： | 八路高速緩沖收發(fā)器（高速八通道緩沖收發(fā)器） |
| 文件頁數(shù)： | 8/10頁 |
| 文件大?。?/td> | 109K |
| 代理商： | ML65245 |
ML65245
**
/ML65L245
*
8
REV. 1.0 10/25/2000
In order to meet the 13ns cycle time, the SRAM and
buffer must meet a total access time of 12ns. With the
ML65245, the required SRAM access time is 10ns at
75MHz and 18ns at 50MHz. With the fastest FCT buffer
available (3.2ns), the SRAM access time required in the
above scenarios would be 8ns and 15ns respectively. This
access time difference could mean the difference
between using expensive BiCMOS SRAMs versus less
expensive CMOS SRAMs.
Application 2
BUFFERING CACHE MEMORY
With the advent of higher power operating systems like
Windows NT, NeXT Step, Windows, OS/2 Warp, etc.,
RISC processor designs such as the Mips R4000 series are
gaining momentum. In these systems the interface to
secondary cache has a critical path in the address and bus
control pins. As shown in Figure 8, any propagation delay
time saved in the buffer translates to a slower SRAM
access requirement and is therefore less expensive.
Currently, the secondary cache bus operates at 75MHz.
Figure 8. ML65245 in a R4X00 secondary cache application. The address and control signal path is critical and
loads the R4X00 output pins. The ML65245 buffer alleviates the load on the R4X00 and because it is fast,
slower, less expensive SRAMs can be used.
Figure 9. Timing waveform showing address buffer switching rate (tA + tH) in a secondary cache module.
ADDR
WE
DATA
ADDR1
tA
tH
R4X00
150/75 MHz
SRAM
10ns
ML65245
DATA BUS
ADDR
OE
CS
SRAM
10ns
SECONDARY CACHE MODULE
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ML65L245 | High Speed Octal Buffer Transceivers(高速八通道緩沖收發(fā)器) |
| ML6553CS-1 | ; Leaded Process Compatible:Yes RoHS Compliant: Yes |
| ML6553 | Bus Termination Regulator |
| ML65541 | High Speed Octal Buffer/Line Drivers(高速八通道緩沖收發(fā)器) |
| ML65L541 | High Speed Octal Buffer/Line Drivers(高速八通道緩沖收發(fā)器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML65245CK | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:High Speed Octal Buffer Transceivers |
| ML65245CS | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ML6553 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Bus Termination Regulator |
| ML6553CS1 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Bus Termination RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| ML6553CS-1 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Bus Termination Regulator |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。