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IDT72275L15TFG8 PDF预览

IDT72275L15TFG8

更新时间: 2024-02-12 10:33:38
品牌 Logo 应用领域
艾迪悌 - IDT 先进先出芯片
页数 文件大小 规格书
25页 301K
描述
FIFO, 32KX18, 10ns, Synchronous, CMOS, PQFP64, STQFP-64

IDT72275L15TFG8 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:QFP
包装说明:STQFP-64针数:64
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.32.00.71风险等级:5.83
最长访问时间:10 ns其他特性:RETRANSMIT; AUTO POWER DOWN; EASY EXPANDABLE IN DEPTH AND WIDTH
周期时间:15 nsJESD-30 代码:S-PQFP-G64
JESD-609代码:e3长度:10 mm
内存密度:589824 bit内存宽度:18
湿度敏感等级:3功能数量:1
端子数量:64字数:32768 words
字数代码:32000工作模式:SYNCHRONOUS
最高工作温度:70 °C最低工作温度:
组织:32KX18可输出:YES
封装主体材料:PLASTIC/EPOXY封装代码:LFQFP
封装形状:SQUARE封装形式:FLATPACK, LOW PROFILE, FINE PITCH
并行/串行:PARALLEL峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.6 mm
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):4.5 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:CMOS温度等级:COMMERCIAL
端子面层:MATTE TIN端子形式:GULL WING
端子节距:0.5 mm端子位置:QUAD
处于峰值回流温度下的最长时间:30宽度:10 mm
Base Number Matches:1

IDT72275L15TFG8 数据手册

 浏览型号IDT72275L15TFG8的Datasheet PDF文件第1页浏览型号IDT72275L15TFG8的Datasheet PDF文件第2页浏览型号IDT72275L15TFG8的Datasheet PDF文件第4页浏览型号IDT72275L15TFG8的Datasheet PDF文件第5页浏览型号IDT72275L15TFG8的Datasheet PDF文件第6页浏览型号IDT72275L15TFG8的Datasheet PDF文件第7页 
IDT72275/72285  
CMOS SuperSync FIFO™ 32,768 x 18 and 65,536 x 18  
COMMERCIALANDINDUSTRIAL  
TEMPERATURERANGES  
of1,023withserialprogramming. Theflagsareupdatedaccordingtothetiming  
modeanddefaultoffsetsselected.  
DESCRIPTION (CONTINUED)  
PAEandPAFcanbeprogrammedindependentlytoswitchatanypointin  
memory. (SeeTableIandTableII.) Programmableoffsetsdeterminetheflag  
switchingthresholdandcanbeloadedbytwomethods:parallelorserial. Two  
defaultoffsetsettingsarealsoprovided,sothatPAEcanbesettoswitchat127  
or1,023locationsfromtheemptyboundaryandthePAFthresholdcanbeset  
at127or1,023locationsfromthefullboundary. Thesechoicesaremadewith  
the LD pinduringMasterReset.  
For serial programming, SEN together with LD on each rising edge of  
WCLK, are used to load the offset registers via the Serial Input (SI). For  
parallelprogramming, WEN togetherwithLD oneachrisingedgeofWCLK,  
are used to load the offset registers via Dn. REN together with LD on each  
rising edge of RCLK can be used to read the offsets in parallel from Qn  
regardless of whether serial or parallel offset loading has been selected.  
During Master Reset (MRS) the following events occur: The read and  
write pointers are settothe firstlocationofthe FIFO. The FWFTpinselects  
IDT Standard mode or FWFT mode. The LD pin selects either a partial flag  
defaultsettingof127withparallelprogrammingorapartialflagdefaultsetting  
The Partial Reset (PRS) also sets the read and write pointers to the first  
location of the memory. However, the timing mode, partial flag program-  
ming method, and default or programmed offset settings existing before  
Partial Reset remain unchanged. The flags are updated according to the  
timingmodeandoffsetsineffect. PRSisusefulforresettingadeviceinmid-  
operation, when reprogramming partial flags would be undesirable.  
The Retransmit function allows data to be reread from the FIFO more  
than once. A LOW on the RT input during a rising RCLK edge initiates a  
retransmit operation by setting the read pointer to the first location of the  
memory array.  
If, at any time, the FIFO is not actively performing an operation, the chip  
will automatically power down. Once in the power down state, the standby  
supply current consumption is minimized. Initiating any operation (by  
activating control inputs) will immediately take the device out of the power  
down state.  
The IDT72275/72285 are fabricated using IDTs high speed submicron  
CMOS technology.  
PARTIAL RESET (PRS) MASTER RESET (MRS)  
READ CLOCK (RCLK)  
READ ENABLE (REN)  
OUTPUT ENABLE (OE)  
WRITE CLOCK (WCLK)  
WRITE ENABLE (WEN)  
LOAD (LD)  
DATA OUT (Q0 - Qn)  
DATA IN (D0 - Dn)  
IDT  
72275  
72285  
RETRANSMIT (RT)  
SERIAL ENABLE(SEN)  
FIRST WORD FALL THROUGH/SERIAL INPUT  
(FWFT/SI)  
EMPTY FLAG/OUTPUT READY (EF/OR)  
PROGRAMMABLE ALMOST-EMPTY (PAE)  
FULL FLAG/INPUT READY (FF/IR)  
HALF FULL FLAG (HF)  
PROGRAMMABLE ALMOST-FULL (PAF)  
4674 drw 03  
Figure 1. Block Diagram of Single 32,768 x 18 and 65,536 x 18 Synchronous FIFO  
3

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