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參數(shù)資料
| 型號(hào)： | IDT72V285L15TF8 |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁數(shù)： | 5/25頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC FIFO SS 65536X18 15NS 64STQFP |
| 標(biāo)準(zhǔn)包裝： | 1,250 |
| 系列： | 72V |
| 功能： | 異步 |
| 存儲(chǔ)容量： | 1.1M（65K x 18） |
| 數(shù)據(jù)速率： | 67MHz |
| 訪問時(shí)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： | 64-LQFP |
| 供應(yīng)商設(shè)備封裝： | 64-TQFP（10x10） |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | 72V285L15TF8 |
13
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
IDT72V275/72V285 3.3V CMOS SUPERSYNC FIFOTM
32,768 x 18 and 65,536 x 18
PROGRAMMABLE ALMOST-FULL FLAG (
PAF
PAF)
The Programmable Almost-Full flag (
PAF) will go LOW when the FIFO
reaches the almost-full condition. In IDT Standard mode, if no reads are
performedafterreset(
MRS),PAFwillgoLOWafter(D - m)wordsarewritten
to the FIFO. The
PAFwillgoLOWafter(32,768-m)writesfortheIDT72V275
and (65,536-m)writesfortheIDT72V285.Theoffset“m”isthefulloffsetvalue.
The default setting for this value is stated in the footnote of Table 1.
In FWFT mode, the
PAF will go LOW after (32,769-m) writes for the
IDT72V275and(65,537-m)writesfortheIDT72V285,wheremisthefulloffset
value. The default setting for this value is stated in the footnote of Table 2.
See Figure 16, Programmable Almost-Full Flag Timing (IDT Standard
and FWFT Mode), for the relevant timing information.
PAF is synchronous and updated on the rising edge of WCLK.
PROGRAMMABLE ALMOST-EMPTY FLAG (
PAE
PAE)
TheProgrammableAlmost-Emptyflag(
PAE)willgoLOWwhentheFIFO
reachesthealmost-emptycondition.InIDTStandardmode,
PAEwillgoLOW
when there are n words or less in the FIFO. The offset “n” is the empty offset
value. The default setting for this value is stated in the footnote of Table 1.
In FWFT mode, the
PAE will go LOW when there are n+1 words or less
intheFIFO.ThedefaultsettingforthisvalueisstatedinthefootnoteofTable2.
See Figure 17, Programmable Almost-Empty Flag Timing (IDT Standard
and FWFT Mode), for the relevant timing information.
PAE is synchronous and updated on the rising edge of RCLK.
HALF-FULL FLAG (
HF
HF)
Thisoutputindicatesahalf-fullFIFO.TherisingWCLKedgethatfillstheFIFO
beyond half-full sets
HF LOW. The flag remains LOW until the difference
between the write and read pointers becomes less than or equal to half of the
totaldepthofthedevice;therisingRCLKedgethataccomplishesthiscondition
sets
HF HIGH.
In IDT Standard mode, if no reads are performed after reset (
MRS or
PRS), HF will go LOW after (D/2 + 1) writes to the FIFO, where D = 32,768
for the IDT72V275 and 65,536 for the IDT72V285.
In FWFT mode, if no reads are performed after reset (
MRSorPRS),HF
will go LOW after (D-1/2 + 2) writes to the FIFO, where D = 32,769 for the
IDT72V275 and 65,537 for the IDT72V285.
See Figure 18, Half-Full Flag Timing (IDT Standard and FWFT Modes),
for the relevant timing information. Because
HFisupdatedbybothRCLKand
WCLK, it is considered asynchronous.
DATA OUTPUTS (Q0-Q17)
(Q0 - Q17) are data outputs for 18-bit wide data.
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| IDT72V285L15TFI | 功能描述:IC FIFO SS 65536X18 15NS 64STQFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標(biāo)準(zhǔn)包裝:90 系列:74ABT 功能:同步，雙端口 存儲(chǔ)容量:4.6K（64 x 36 x2） 數(shù)據(jù)速率:67MHz 訪問時(shí)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(yīng)商設(shè)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 |
| IDT72V285L15TFI8 | 功能描述:IC FIFO SS 65536X18 15NS 64STQFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標(biāo)準(zhǔn)包裝:15 系列:74F 功能:異步 存儲(chǔ)容量:256（64 x 4） 數(shù)據(jù)速率:- 訪問時(shí)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(yīng)商設(shè)備封裝:24-PDIP 包裝:管件 其它名稱:74F433 |
| IDT72V285L20PF | 功能描述:IC FIFO SS 65536X18 20NS 64-TQFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標(biāo)準(zhǔn)包裝:15 系列:74F 功能:異步 存儲(chǔ)容量:256（64 x 4） 數(shù)據(jù)速率:- 訪問時(shí)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(yīng)商設(shè)備封裝:24-PDIP 包裝:管件 其它名稱:74F433 |
| IDT72V285L20PF8 | 功能描述:IC FIFO SS 65536X18 20NS 64-TQFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標(biāo)準(zhǔn)包裝:15 系列:74F 功能:異步 存儲(chǔ)容量:256（64 x 4） 數(shù)據(jù)速率:- 訪問時(shí)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(yīng)商設(shè)備封裝:24-PDIP 包裝:管件 其它名稱:74F433 |
| IDT72V285L20TF | 功能描述:IC FIFO SS 65536X18 20NS 64STQFP RoHS:否 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:72V 標(biāo)準(zhǔn)包裝:15 系列:74F 功能:異步 存儲(chǔ)容量:256（64 x 4） 數(shù)據(jù)速率:- 訪問時(shí)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(yīng)商設(shè)備封裝:24-PDIP 包裝:管件 其它名稱:74F433 |
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