參數(shù)資料
型號: IDT72V85L15PA
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 11/12頁
文件大小: 0K
描述: IC FIFO ASYNCH 4096X18 56TSSOP
標準包裝: 34
系列: 72V
功能: 異步
存儲容量: 72K(4K x 18)
數(shù)據(jù)速率: 40MHz
訪問時間: 15ns
電源電壓: 3 V ~ 3.6 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 56-TFSOP(0.240",6.10mm 寬)
供應商設備封裝: 56-TSSOP
包裝: 管件
其它名稱: 72V85L15PA
8
COMMERCIAL ANDINDUSTRIAL
TEMPERATURERANGES
IDT72V81/72V82/72V83/72V84/72V85 3.3V CMOS DUAL ASYNCHRONOUS FIFO
512 x 9, 1024 x 9, 2048 x 9, 4096 x 9, 8192 x 9
USAGE MODES:
Width Expansion
Word width may be increased simply by connecting the corresponding
input control signals of multiple FIFOs. Status flags (EF, FF and HF) can be
detectedfromanyoneFIFO. Figure13demonstratesan18-bitwordwidthby
usingthetwoFIFOscontainedintheIDT72V81/72V82/72V83/72V84/72V85s.
Any word width can be attained by adding FIFOs (Figure 13).
Bidirectional Operation
Applications which require data buffering between two systems (each
system capable of Read and Write operations) can be achieved by pairing
IDT72V81/72V82/72V83/72V84/72V85sasshowninFigure16.BothDepth
Expansion and Width Expansion may be used in this mode.
Data Flow-Through
Two types of flow-through modes are permitted, a read flow-through
andwriteflow-throughmode.Forthereadflow-throughmode(Figure17),the
FIFO permits a reading of a single word after writing one word of data into an
empty FIFO. The data is enabled on the bus in (tWEF + tA) ns after the rising
edgeofW,calledthefirstwriteedge,anditremainsonthe busuntiltheRline
israisedfromlow-to-high,afterwhichthebuswouldgointoathree-statemode
aftertRHZns.TheEFlinewouldhaveapulseshowingtemporarydeassertion
and then would be asserted.
In the write flow-through mode (Figure 18), the FIFO permits the writing
of a single word of data immediately after reading one word of data from a
full FIFO. The Rline causes the FFto be deasserted but the Wline being low
causesittobeassertedagaininanticipationofanewdataword.Ontherising
edgeofW,thenewwordisloadedintheFIFO.TheWlinemustbetoggledwhen
FFisnotassertedtowritenewdataintheFIFOandtoincrementthewritepointer.
Compound Expansion
The two expansion techniques described above can be applied together
in a straightforward manner to achieve large FIFO arrays (see Figure 15).
Figure 12. Block Diagram of One 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 x 9 FIFO Used in Single Device Mode
Figure 13. Block Diagram of One 512 x 18, 1,024 x 18, 2,048 x 18, 4,096 x 18 and 8,192 x 18 FIFO Memory Used in Width Expansion Mode
XIA
XIB
9
18
9
18
HFB
HFA
9
WRITE (
W)
FULL FLAG (
FFA)
RESET (
RS)
READ (
R)
EMPTY FLAG (
EFB)
RETRANSMIT (
RT)
DATA OUT (Q)
3966 drw 15
FIFO A
FIFO B
72V81/72V82/72V83
72V84/72V85
DATA
(D)
IN
WRITE (
W)
DATA IN (D)
FULL FLAG (
FF)
RESET (
RS)
9
READ (
R)
9
DATA OUT (Q)
EMPTY FLAG (
EF)
RETRANSMIT (
RT)
EXPANSION IN (
XI)
(
HF)
IDT
72V81
72V82
72V83
72V84
72V85
(HALF-FULL FLAG)
3966 drw 14
FIFO
A or B
相關PDF資料
PDF描述
MS27499E8B35SA CONN RCPT 6POS BOX MNT W/SCKT
IDT7285L15PA IC FIFO 4096X18 15NS 56TSSOP
MS27499E8F35SA CONN RCPT 6POS BOX MNT W/SCKT
MS27473P12B98S CONN PLUG 10POS STRAIGHT W/SCKT
IDT7207L25P IC FIFO 16384X18 25NS 28DIP
相關代理商/技術(shù)參數(shù)
參數(shù)描述
IDT72V85L15PA8 功能描述:IC FIFO ASYNCH 4096X18 56TSSOP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標準包裝:90 系列:7200 功能:同步 存儲容量:288K(16K x 18) 數(shù)據(jù)速率:100MHz 訪問時間:10ns 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:64-LQFP 供應商設備封裝:64-TQFP(14x14) 包裝:托盤 其它名稱:72271LA10PF
IDT72V85L15PAG 功能描述:IC FIFO ASYNCH 4096X18 56TSSOP RoHS:是 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標準包裝:90 系列:7200 功能:同步 存儲容量:288K(16K x 18) 數(shù)據(jù)速率:100MHz 訪問時間:10ns 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:64-LQFP 供應商設備封裝:64-TQFP(14x14) 包裝:托盤 其它名稱:72271LA10PF
IDT72V85L15PAG8 功能描述:IC FIFO ASYNCH 4096X18 56TSSOP RoHS:是 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標準包裝:90 系列:7200 功能:同步 存儲容量:288K(16K x 18) 數(shù)據(jù)速率:100MHz 訪問時間:10ns 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:64-LQFP 供應商設備封裝:64-TQFP(14x14) 包裝:托盤 其它名稱:72271LA10PF
IDT72V85L20PA 功能描述:IC FIFO ASYNC DUAL 20NS 56-TSSOP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標準包裝:90 系列:74ABT 功能:同步,雙端口 存儲容量:4.6K(64 x 36 x2) 數(shù)據(jù)速率:67MHz 訪問時間:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:120-LQFP 裸露焊盤 供應商設備封裝:120-HLQFP(14x14) 包裝:托盤 產(chǎn)品目錄頁面:1005 (CN2011-ZH PDF) 其它名稱:296-3984
IDT72V85L20PA8 功能描述:IC FIFO ASYNCH 4096X18 56TSSOP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標準包裝:90 系列:7200 功能:同步 存儲容量:288K(16K x 18) 數(shù)據(jù)速率:100MHz 訪問時間:10ns 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:64-LQFP 供應商設備封裝:64-TQFP(14x14) 包裝:托盤 其它名稱:72271LA10PF