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參數(shù)資料
| 型號(hào)： | IDT72801L25TFI8 |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 0K |
| 描述： | IC FIFO SYNC DUAL 256X9 64QFP |
| 標(biāo)準(zhǔn)包裝： | 1,250 |
| 系列： | 7200 |
| 功能： | 同步 |
| 存儲(chǔ)容量： | 2.3K（256 x 9） |
| 數(shù)據(jù)速率： | 40MHz |
| 訪問時(shí)間： | 25ns |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-LQFP |
| 供應(yīng)商設(shè)備封裝： | 64-TQFP（10x10） |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | 72801L25TFI8 |
IDT, IDT logo and the
SyncFIFO logo are registered trademarks of Integrated Device Technology, Inc.
MARCH 2013
DUAL CMOS SyncFIFO
DUAL 256 x 9, DUAL 512 x 9,
DUAL 1,024 x 9, DUAL 2,048 x 9,
DUAL 4,096 x 9, DUAL 8,192 x 9
IDT72801
IDT72811
IDT72821
IDT72831
IDT72841
IDT72851
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGE
1
2013 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
DSC-3034/6
FEATURES:
The IDT72801 is equivalent to two IDT72201 256 x 9 FIFOs
The IDT72811 is equivalent to two IDT72211 512 x 9 FIFOs
The IDT72821 is equivalent to two IDT72221 1,024 x 9 FIFOs
The IDT72831 is equivalent to two IDT72231 2,048 x 9 FIFOs
The IDT72841 is equivalent to two IDT72241 4,096 x 9 FIFOs
The IDT72851 is equivalent to two IDT72251 8,192 x 9 FIFOs
Offers optimal combination of large capacity, high speed,
design flexibility and small footprint
Ideal for prioritization, bidirectional, and width expansion
applications
10 ns read/write cycle time for the IDT72801/72811/72821/72831/
72841/72851
Separate control lines and data lines for each FIFO
Separate Empty, Full, Programmable Almost-Empty and Almost-
Full flags for each FIFO
Enable puts output data lines in high-impedance state
Space-saving 64-pin Thin Quad Flat Pack (TQFP) and Slim Thin
Quad Flatpack (STQFP)
Industrial temperature range (–40
°°°°°C to +85°°°°°C) is available
Green parts available, see ordering information
DESCRIPTION:
TheIDT72801/72811/72821/72831/72841/72851aredualsynchronous
(clocked)FIFOs. ThedeviceisfunctionallyequivalenttotwoIDT72201/72211/
72221/72231/72241/72251 FIFOs in a single package with all associated
control,data,andflaglinesassignedtoseparatepins.
Each of the two FIFOs (designated FIFO A and FIFO B) contained in the
IDT72801/72811/72821/72831/72841/72851hasa9-bitinputdataport(DA0
-DA8,DB0-DB8)anda9-bitoutputdataport(QA0-QA8,QB0-QB8).Each
inputportiscontrolledbyafree-runningclock(WCLKA,WCLKB),andtwoWrite
Enablepins(WENA1,WENA2,WENB1,WENB2). Dataiswrittenintoeachof
thetwoarraysoneveryrisingclockedgeoftheWriteClock(WCLKA,WCLKB)
when the appropriate write enable pins are asserted.
TheoutputportofeachFIFObankiscontrolledbyitsassociated clockpin
(RCLKA, RCLKB) and two Read Enable pins (RENA1, RENA2, RENB1,
RENB2).TheReadClockcanbetiedtotheWriteClockforsingleclockoperation
orthetwoclockscanrunasynchronousofoneanotherfordualclockoperation.
An Output Enable pin (OEA, OEB) is provided on the read port of each FIFO
forthree-stateoutputcontrol.
EachofthetwoFIFOshastwofixedflags,Empty(EFA,EFB)andFull(FFA,
FFB). Twoprogrammableflags,Almost-Empty(PAEA,PAEB)andAlmost-Full
(PAFA,PAFB),areprovidedforeachFIFObanktoimprovememoryutilization.
Ifnotprogrammed,theprogrammableflagsdefaulttoempty+7forPAEAand
PAEB, and full-7 for PAFA and PAFB.
TheIDT72801/72811/72821/72831/72841/72851architecturelendsitself
tomanyflexibleconfigurationssuchas:
2-levelprioritydatabuffering
Bidirectional operation
Width expansion
Depthexpansion
These FIFOs is fabricated using high-performance submicron CMOS
technology.
FUNCTIONAL BLOCK DIAGRAM
WCLKA
WENA1
WENA2
DA0 - DA8
LDA
OFFSET REGISTER
INPUT REGISTER
RAM ARRAY
256 x 9, 512 x 9,
1024 x 9, 2048 x 9,
4096 x 9, 8192 x 9
WRITE CONTROL
LOGIC
WRITE POINTER
RESET LOGIC
OUTPUT REGISTER
OEA
RSA
QA0 - QA8
RCLKA
RENA1
RENA2
READ CONTROL
LOGIC
READ POINTER
FLAG
LOGIC
EFA
PAEA
PAFA
FFA
3034 drw 01
WCLKB
WENB1
WENB2
DB0 - DB8
LDB
OFFSET REGISTER
INPUT REGISTER
WRITE CONTROL
LOGIC
WRITE POINTER
RESET LOGIC
OUTPUT REGISTER
OEB
RSB
QB0 - QB8
RCLKB
RENB1
RENB2
READ CONTROL
LOGIC
READ POINTER
FLAG
LOGIC
EFB
PAEB
PAFB
FFB
RAM ARRAY
256 x 9, 512 x 9,
1024 x 9, 2048 x 9,
4096 x 9, 8192 x 9
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