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參數(shù)資料
| 型號(hào)： | IDT72251L25PFI8 |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC FIFO SYNC 512X9 25NS 32QFP |
| 標(biāo)準(zhǔn)包裝： | 2,000 |
| 系列： | 7200 |
| 功能： | 同步 |
| 存儲(chǔ)容量： | 72K（8K x 9） |
| 訪(fǎng)問(wèn)時(shí)間： | 25ns |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 32-LQFP |
| 供應(yīng)商設(shè)備封裝： | 32-TQFP（7x7） |
| 包裝： | 帶卷 (TR) |
| 其它名稱(chēng)： | 72251L25PFI8 |
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1
AUGUST 2013
CMOSSyncFIFO
64 x 9, 256 x 9, 512 x 9,
1,024 x 9, 2,048 x 9,
4,096 x 9 and 8,192 x 9
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. The SyncFIFO is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
IDT72421,IDT72201
IDT72211,IDT72221
IDT72231,IDT72241
IDT72251
2013
Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
DSC-2655/6
FEATURES:
64 x 9-bit organization (IDT72421)
256 x 9-bit organization (IDT72201)
512 x 9-bit organization (IDT72211)
1,024 x 9-bit organization (IDT72221)
2,048 x 9-bit organization (IDT72231)
4,096 x 9-bit organization (IDT72241)
8,192 x 9-bit organization (IDT72251)
10 ns read/write cycle time
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 the 32-pin plastic leaded chip carrier (PLCC) and
32-pin Thin Quad Flat Pack (TQFP)
For through-hole product please see the IDT72420/72200/72210/
72220/72230/72240 data sheet
Industrial temperature range (–40
°°°°°C to +85°°°°°C) is available
Green parts available, see ordering information
FUNCTIONAL BLOCK DIAGRAM
WCLK
WEN1
WEN2
D0 - D8
LD
OFFSET REGISTER
INPUT REGISTER
RAM ARRAY
64 x 9, 256 x 9,
512 x 9, 1,024 x 9,
2,048 x 9, 4,096 x 9,
8,192 x 9
WRITE CONTROL
LOGIC
WRITE POINTER
OUTPUT REGISTER
READ CONTROL
LOGIC
READ POINTER
FLAG
LOGIC
EF
PAE
PAF
FF
RESET LOGIC
OE
REN2
REN1
RS
RCLK
2655 drw01
Q0 - Q8
DESCRIPTION:
The IDT72421/72201/72211/72221/72231/72241/72251 SyncFIFO
are very high-speed, low-power First-In, First-Out (FIFO) memories with
clocked read and write controls. These devices have a 64, 256, 512, 1,024,
2,048,4,096,and8,192x9-bitmemoryarray,respectively. TheseFIFOsare
applicableforawidevarietyofdatabufferingneedssuchasgraphics,localarea
networksandinterprocessorcommunication.
TheseFIFOshave9-bitinputandoutputports.Theinputportiscontrolled
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
thewriteenablepinsareasserted.Theoutputportiscontrolledbyanotherclock
pin (RCLK) and two read enable pins (REN1, REN2). The Read Clock can
be tied to the Write Clock for single clock operation or the two clocks can run
asynchronous of one another for dual-clock operation. An output enable pin
(OE) is provided on the read port for three-state control of the output.
The Synchronous FIFOs have two fixed flags, 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
offsetloadingiscontrolledbyasimplestatemachineandisinitiatedbyasserting
the load pin (LD).
TheseFIFOsarefabricatedusinghigh-speedsubmicronCMOStechnology.
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| IDT72255LA10PF | 功能描述:IC FIFO SUPERSYNC 8KX18 64QFP RoHS:否 類(lèi)別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 標(biāo)準(zhǔn)包裝:90 系列:7200 功能:同步 存儲(chǔ)容量:288K（16K x 18） 數(shù)據(jù)速率:100MHz 訪(fǎng)問(wèn)時(shí)間:10ns 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:64-LQFP 供應(yīng)商設(shè)備封裝:64-TQFP（14x14） 包裝:托盤(pán) 其它名稱(chēng):72271LA10PF |
| IDT72255LA10PF8 | 功能描述:IC FIFO 8KX18 LP 10NS 64QFP RoHS:否 類(lèi)別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 標(biāo)準(zhǔn)包裝:90 系列:7200 功能:同步 存儲(chǔ)容量:288K（16K x 18） 數(shù)據(jù)速率:100MHz 訪(fǎng)問(wèn)時(shí)間:10ns 電源電壓:4.5 V ~ 5.5 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:64-LQFP 供應(yīng)商設(shè)備封裝:64-TQFP（14x14） 包裝:托盤(pán) 其它名稱(chēng):72271LA10PF |
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