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參數資料
| 型號： | IDT72291L20PFI8 |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁數： | 1/26頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC FIFO 65536X18 LP 20NS 64QFP |
| 標準包裝： | 750 |
| 系列： | 7200 |
| 功能： | 同步 |
| 存儲容量： | 1.1M（65K x 18） |
| 數據速率： | 50MHz |
| 訪問時間： | 20ns |
| 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 |
| 供應商設備封裝： | 64-TQFP（14x14） |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | 72291L20PFI8 |
1
2013 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
DSC-4675/5
MARCH 2013
IDT, IDT logo are registered trademarks of Integrated Device Technology, Inc. The SuperSync FIFO is a trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
CMOS SuperSync FIFO
65,536 x 9
131,072 x 9
IDT72281
IDT72291
FEATURES:
Choose among the following memory organizations:
IDT72281
65,536 x 9
IDT72291
131,072 x 9
Pin-compatible with the IDT72261LA/72271LA SuperSync FIFOs
10ns read/write cycle time (6.5ns access time)
Fixed, low first word data latency time
Auto power down minimizes standby power consumption
Master Reset clears entire FIFO
Partial Reset clears data, but retains programmable
settings
Retransmit operation with fixed, low first word data
latency time
Empty, Full and Half-Full flags signal FIFO status
Programmable Almost-Empty and Almost-Full flags, each flag
can default to one of two preselected offsets
Program partial flags by either serial or parallel means
Select IDT Standard timing (using EF and FF flags) or First
Word Fall Through timing (using OR and IR flags)
Output enable puts data outputs into high impedance state
Easily expandable in depth and width
Independent Read and Write clocks (permit reading and writing
simultaneously)
Available in the 64-pin Thin Quad Flat Pack (TQFP) and the 64-
pin Slim Thin Quad Flat Pack (STQFP)
High-performance submicron CMOS technology
Industrial temperature range (-40°C to +85°C) is available
DESCRIPTION:
TheIDT72281/72291areexceptionallydeep,highspeed,CMOSFirst-In-
First-Out(FIFO)memorieswithclockedreadandwritecontrols. TheseFIFOs
offernumerousimprovementsoverpreviousSuperSyncFIFOs,includingthe
following:
Thelimitationofthefrequencyofoneclockinputwithrespecttotheotherhas
been removed. The Frequency Select pin (FS) has been removed, thus
it is no longer necessary to select which of the two clock inputs, RCLK or
WCLK, is running at the higher frequency.
The period required by the retransmit operation is now fixed and short.
Thefirstworddatalatencyperiod,fromthetimethefirstwordiswrittentoan
emptyFIFOtothetimeitcanberead,isnowfixedandshort. (Thevariable
clock cycle counting delay associated with the latency period found on
previousSuperSyncdeviceshasbeeneliminatedonthisSuperSyncfamily.)
SuperSyncFIFOsareparticularlyappropriatefornetwork,video,telecom-
munications,datacommunicationsandotherapplicationsthatneedtobuffer
largeamountsofdata.
INPUT REGISTER
OUTPUT REGISTER
RAM ARRAY
65,536 x 9
131,072 x 9
FLAG
LOGIC
FF/IR
PAF
EF/OR
PAE
HF
READ
CONTROL
LOGIC
WRITE CONTROL
LOGIC
RESET
LOGIC
WEN
WCLK
D0 -D8
LD
MRS
REN
RCLK
OE
Q0 -Q8
OFFSET REGISTER
PRS
FWFT/SI
SEN
RT
4675 drw01
WRITE POINTER
READ POINTER
FUNCTIONAL BLOCK DIAGRAM
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相關代理商/技術參數 |
參數描述 |
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| IDT72291L20TF | 功能描述:IC FIFO 65536X18 LP 20NS 64QFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 標準包裝:15 系列:74F 功能:異步 存儲容量:256（64 x 4） 數據速率:- 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:通孔 封裝/外殼:24-DIP（0.300"，7.62mm） 供應商設備封裝:24-PDIP 包裝:管件 其它名稱:74F433 |
| IDT72291L20TF8 | 功能描述:IC FIFO 65536X18 LP 20NS 64QFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 標準包裝:15 系列:74F 功能:異步 存儲容量:256（64 x 4） 數據速率:- 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:通孔 封裝/外殼:24-DIP（0.300"，7.62mm） 供應商設備封裝:24-PDIP 包裝:管件 其它名稱:74F433 |
| IDT72291L20TFI | 功能描述:IC FIFO 65536X18 LP 20NS 64QFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 標準包裝:15 系列:74F 功能:異步 存儲容量:256（64 x 4） 數據速率:- 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:通孔 封裝/外殼:24-DIP（0.300"，7.62mm） 供應商設備封裝:24-PDIP 包裝:管件 其它名稱:74F433 |
| IDT72291L20TFI8 | 功能描述:IC FIFO 65536X18 LP 20NS 64QFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 標準包裝:15 系列:74F 功能:異步 存儲容量:256（64 x 4） 數據速率:- 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:通孔 封裝/外殼:24-DIP（0.300"，7.62mm） 供應商設備封裝:24-PDIP 包裝:管件 其它名稱:74F433 |
| IDT723611L15PF | 功能描述:IC FIFO 64X36 SYNC 15NS 120-TQFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 標準包裝:15 系列:74F 功能:異步 存儲容量:256（64 x 4） 數據速率:- 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:通孔 封裝/外殼:24-DIP（0.300"，7.62mm） 供應商設備封裝:24-PDIP 包裝:管件 其它名稱:74F433 |
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