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IDT72251L35J PDF预览

IDT72251L35J

更新时间: 2024-11-15 23:01:15
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
17页 187K
描述
CMOS SyncFIFOO 8192 X 9

IDT72251L35J 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:QFJ包装说明:PLASTIC, LCC-32
针数:32Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.32.00.71
风险等级:5.8最长访问时间:20 ns
最大时钟频率 (fCLK):28.6 MHz周期时间:35 ns
JESD-30 代码:R-PQCC-J32JESD-609代码:e0
长度:13.97 mm内存密度:73728 bit
内存集成电路类型:OTHER FIFO内存宽度:9
湿度敏感等级:1功能数量:1
端子数量:32字数:8192 words
字数代码:8000工作模式:SYNCHRONOUS
最高工作温度:70 °C最低工作温度:
组织:8KX9可输出:YES
封装主体材料:PLASTIC/EPOXY封装代码:QCCJ
封装等效代码:LDCC32,.5X.6封装形状:RECTANGULAR
封装形式:CHIP CARRIER并行/串行:PARALLEL
电源:5 V认证状态:Not Qualified
座面最大高度:3.55 mm最大待机电流:0.08 A
子类别:FIFOs最大压摆率:0.08 mA
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:Tin/Lead (Sn85Pb15)端子形式:J BEND
端子节距:1.27 mm端子位置:QUAD
宽度:11.43 mmBase Number Matches:1

IDT72251L35J 数据手册

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ADVANCED  
INFORMATION  
IDT72251  
CMOS SyncFIFO  
8192 X 9  
Integrated Device Technology, Inc.  
FEATURES:  
interprocessor communication.  
• 8192 x 9-bit organization  
• Pin/function compatible with IDT72421/722x1 family  
• 15 ns read/write cycle time  
This FIFO has a 9-bit input and output port. The input port  
is controlled by a free-running clock (WCLK), and two write  
enable pins (WEN1, WEN2). Data is written into the  
Synchronous FIFO on every rising clock edge when the write  
enable pins are asserted. The output port is controlled by  
another clock pin (RCLK) and two read enable pins (REN1,  
REN2). The read clock can be tied to the write clock for single  
clockoperationorthetwoclockscanrunasynchronousofone  
another for dual-clock operation. An output enable pin (OE) is  
provided on the read port for three-state control of the output.  
TheSynchronousFIFOhastwofixedflags, Empty(EF)and  
Full (FF). Two programmable flags, Almost-Empty (PAE) and  
Almost-Full (PAF), are provided for improved system control.  
The programmable flags default to Empty+7 and Full-7 for  
PAE and PAF, respectively. The programmable flag offset  
loading is controlled by a simple state machine and is initiated  
by asserting the load pin (LD).  
• Read and write clocks can be independent  
• Dual-Ported zero fall-through time architecture  
• Empty and Full flags signal FIFO status  
• Programmable Almost-Empty and Almost-Full flags can  
be set to any depth  
• Programmable Almost-Empty and Almost-Full flags  
default to Empty+7, and Full-7, respectively  
• Output enable puts output data bus in high-impedance  
state  
• Advanced submicron CMOS technology  
• Available in 32-pin plastic leaded chip carrier (PLCC)  
• Industrial temperature range (-40oC to +85oC) is avail-  
able, tested to military electrical specifications  
DESCRIPTION:  
The IDT72251 is fabricated using IDT’s high-speed  
submicron CMOS technology.  
The IDT72251 SyncFIFO is a very high-speed, low-  
power First-In, First-Out (FIFO) memory with clocked read  
and write controls. The IDT72251 has a 8192 x 9-bit memory  
array. This FIFO is applicable for a wide variety of data  
buffering needs such as graphics, local area networks and  
FUNCTIONAL BLOCK DIAGRAM  
D0 - D8  
WCLK  
WEN2  
INPUT REGISTER  
OFFSET REGISTER  
FLAG  
LOGIC  
WRITE CONTROL  
LOGIC  
RAM ARRAY  
8192 x 9  
WRITE POINTER  
READ POINTER  
READ CONTROL  
LOGIC  
OUTPUT REGISTER  
RESET LOGIC  
RCLK  
3545 drw 01  
Q0 - Q8  
SyncFIFO is a trademark and the IDT logo is a registered trademark of Integrated Device Technology, Inc.  
COMMERCIAL TEMPERATURE RANGES  
DECEMBER 1996  
1996 Integrated Device Technology, Inc  
DSC-3545/-  
For latest information contact IDT's web site at www.idt.com or fax-on-demand at 408-492-8391.  
5.14  
1

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