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參數資料
| 型號： | 74ACT2708 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 64 x 9 First-In, First-Out Memory |
| 中文描述： | 64 × 9先入先出存儲器 |
| 文件頁數： | 6/13頁 |
| 文件大?。?/td> | 95K |
| 代理商： | 74ACT2708 |
www.fairchildsemi.com
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Mode 3: With FIFO Full, Shift-In is Held HIGH
in Anticipation of an Empty Location
Sequence of Operation
1. The FIFO is initially full and Shift-In goes HIGH. OR is
initially HIGH. Shift-Out is LOW. IR is LOW.
2. Shift-Out is pulsed HIGH, Shift-Out pulse propagates
and the first data word is latched on the rising edge of
SO. OR falls on this edge. On the falling edge of SO,
the second data word appears after propagation delay
t
D
. New data is written into the FIFO after SO goes
LOW.
3. Input Ready goes HIGH one fall-through time, t
FT
, after
the falling edge of SO. Also, HF goes HIGH one t
OF
after SO falls, indicating that the FIFO is no longer full.
4. IR returns LOW pulse width t
IP
after rising and shifting
new data in. Also, HF returns LOW pulse width t
3F
after
rising, indicating the FIFO is once more full.
5. Shift-In is brought LOW to complete the shift-in process
and maintain normal operation.
Note:
MR and FULL are HIGH; OE is LOW.
FIGURE 3. Modes of Operation Mode 3
相關PDF資料 |
PDF描述 |
|---|---|
| 74ACT2708PC | 64 x 9 First-In, First-Out Memory |
| 74ACT818 | Two 1-Bit LVTTL/GTLP Adj-Edge-Rate Bus Xcvrs w Split LVTTL Port, Fdbk Path and Selectable Polarity 20-TVSOP -40 to 85 |
| 74ACT818SPC | Two 1-Bit LVTTL/GTLP Adj-Edge-Rate Bus Xcvrs w Split LVTTL Port, Fdbk Path and Selectable Polarity 20-SOIC -40 to 85 |
| 74ACTQ02 | CONNECTOR ACCESSORY |
| 74ACTQ02PC | CONNECTOR ACCESSORY |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 74ACT2708 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| 74ACT2708PC | 功能描述:先進先出 64x9 (先進先出) Memory RoHS:否 制造商:IDT 電路數量: 數據總線寬度:18 bit 總線定向:Unidirectional 存儲容量:4 Mbit 定時類型:Synchronous 組織:256 K x 18 最大時鐘頻率:100 MHz 訪問時間:10 ns 電源電壓-最大:3.6 V 電源電壓-最小:6 V 最大工作電流:35 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-80 封裝: |
| 74ACT273B | 功能描述:觸發(fā)器 USE 512-74ACT273PC RoHS:否 制造商:Texas Instruments 電路數量:2 邏輯系列:SN74 邏輯類型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類型:CMOS 輸出類型: 傳播延遲時間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
| 74ACT273DWG | 制造商: 功能描述: 制造商:undefined 功能描述: |
| 74ACT273DWR2 | 制造商: 功能描述: 制造商:undefined 功能描述: |
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