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IDT73720PQF8 PDF预览

IDT73720PQF8

更新时间: 2024-10-02 15:34:47
品牌 Logo 应用领域
艾迪悌 - IDT 逻辑集成电路
页数 文件大小 规格书
9页 122K
描述
Bus Exchanger, 73 Series, 1-Func, 16-Bit, True Output, CMOS, PQFP80, PLASTIC, QFP-80

IDT73720PQF8 技术参数

生命周期:Obsolete零件包装代码:QFP
包装说明:QFP,针数:80
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.84其他特性:BYTE CONTROL ON ALL THREE PORTS
系列:73JESD-30 代码:S-PQFP-G80
JESD-609代码:e0长度:14 mm
负载电容(CL):50 pF逻辑集成电路类型:BUS EXCHANGER
位数:16功能数量:1
端口数量:3端子数量:80
最高工作温度:70 °C最低工作温度:
输出特性:3-STATE输出极性:TRUE
封装主体材料:PLASTIC/EPOXY封装代码:QFP
封装形状:SQUARE封装形式:FLATPACK
传播延迟(tpd):8.5 ns认证状态:Not Qualified
座面最大高度:2.45 mm最大供电电压 (Vsup):5.25 V
最小供电电压 (Vsup):4.75 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
端子形式:GULL WING端子节距:0.65 mm
端子位置:QUAD宽度:14 mm
Base Number Matches:1

IDT73720PQF8 数据手册

 浏览型号IDT73720PQF8的Datasheet PDF文件第2页浏览型号IDT73720PQF8的Datasheet PDF文件第3页浏览型号IDT73720PQF8的Datasheet PDF文件第4页浏览型号IDT73720PQF8的Datasheet PDF文件第5页浏览型号IDT73720PQF8的Datasheet PDF文件第6页浏览型号IDT73720PQF8的Datasheet PDF文件第7页 
16-BIT TRI-PORT  
BUS EXCHANGER  
IDT73720/A  
FEATURES:  
DESCRIPTION:  
High-speed16-bitbus exchangeforinterbus communicationinthe  
followingenvironments:  
Multi-wayinterleavingmemory  
Multiplexed address and data buses  
DirectinterfacetoR3051familyRISChipSet™  
• R3051™familyofintegratedRISController™CPUs  
• R3721 DRAM controller  
The IDT73720/A Bus Exchanger is a high speed 16-bit bus exchange  
deviceintendedforinter-buscommunicationininterleavedmemorysystems  
andhighperformance multiplexedaddress anddata buses.  
The Bus Exchangeris responsible forinterfacingbetweenthe CPUA/  
D bus (CPU address/data bus) and multiple memory data buses.  
The73720/Auses athreebus architecture(X,Y,Z),withcontrolsignals  
suitableforsimpletransferbetweentheCPUbus(X)andeithermemorybus  
(YorZ). The Bus Exchangerfeatures independentreadandwrite latches  
for each memory bus, thus supporting a variety of memory strategies. All  
three ports supportbyte enable toindependentlyenable upperandlower  
bytes.  
Data path for read and write operations  
Low noise 12mA TTL level outputs  
Bidirectional 3-bus architecture: X, Y, Z  
• One CPU bus: X  
Two (interleaved or banked) memory buses:Y & Z  
• Each bus can be independently latched  
Byte control on all three buses  
– Sourceterminatedoutputs forlownoiseandundershootcontrol  
– 68-pin PLCC and 80-pin PQFP package  
High-performance CMOStechnology.  
FUNCTIONALBLOCKDIAGRAM  
OEYL  
8
Y0:7  
LEXY  
Y-WRITE  
LATCH  
16  
Y8:15  
8
(Even Path)  
8
8
OEYU  
LEYX  
Y-READ  
LATCH  
16  
8
8
16  
OEXL  
OEXU  
PATH  
8
OEXL  
OEYU  
OEYL  
OEZU  
OEZL  
X0:7  
M
U
X
T/R  
BUS CONTROL  
16  
OEU  
OEL  
X8:15  
8
OEXU  
8
16  
8
Z-READ  
LEZX  
LATCH  
16  
OEZL  
8
8
8
Z0:7  
16  
Z-WRITE  
LATCH  
16  
LEXZ  
Z8:15  
8
(Odd Path)  
OEZU  
NOTE:  
1. Logic equations for bus control:  
OEXU = T/R* . OEU*; OEXL = T/R* . OEL*; OEYU = T/R. PATH . OEU*  
OEYL = T/R. PATH . OEL*; OEZU = T/R . PATH* . OEU*; OEZL = T/R . PATH* . OEL*  
COMMERCIAL TEMPERATURE RANGE  
DECEMBER 1999  
1
c
1999 Integrated Device Technology, Inc.  
DSC-2527/7  

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