參數(shù)資料
型號(hào)： IDT72841L15PF
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： DRAM
英文描述： DUAL CMOS SyncFIFO
中文描述： 4K X 9 BI-DIRECTIONAL FIFO, 10 ns, PQFP64
封裝： TQFP-64
文件頁(yè)數(shù)： 7/21頁(yè)
文件大小： 228K
代理商： IDT72841L15PF
5.15
7
COMMERCIAL TEMPERATURE
72801/72811/72821/72831/72841 DUAL CMOS SyncFIFO
256 x 9, 512 x 9, 1024 x 9, 2048 x 9 and 4096 x 9
LDA
LDB
0
WENA1
WENB1
0
WCLKA
(1)
WCLKB
(1)
OPERATION ON FIFO A
OPERATION ON FIFO B
Empty Offset (LSB)
Empty Offset (MSB)
Full Offset (LSB)
Full Offset (MSB)
0
1
No Operation
1
0
Write Into FIFO
1
1
No Operation
NOTE:
1. The same selection sequence applies to reading from the registers.
RENA1
and
RENA2
(
RENB1
and
RENB2
) are enabled and read is per-
formed on the LOW-to-HIGH transition of RCLKA (RCLKB).
3034 drw 04
Figure 3. Offset Register Formats and Default Values for the A and B FIFOs
If FIFO A (B) is configured to have programmable flags,
when the
WENA1
(
WENB1
) and WENA2/
LDA
(WENB2/
LDB
)
are set LOW, data on the DA (DB) inputs are written into the
Empty (Least Significant Bit) offset register on the first LOW-
to-HIGH transition of the WCLKA (WCLKB). Data are written
into the Empty (Most Significant Bit) offset register on the
second LOW-to-HIGH transition of WCLKA (WCLKB), into
the Full (Least Significant Bit) offset register on the third
transition, and into the Full (Most Significant Bit) offset register
on the fourth transition. The fifth transition of WCLKA (WCLKB)
again writes to the Empty (Least Significant Bit) offset register.
However, writing all offset registers does not have to occur
at one time. One or two offset registers can be written and then
by bringing
LDA
(
LDB
) HIGH, FIFO A (B) is returned to normal
read/write operation. When
LDA
(
LDB
) s set LOW, and
WENA1
(
WENB1
) is LOW, the next offset register in sequence is
written.
The contents of the offset registers can be read on the QA
(QB) outputs when WENA2/
LDA
(WENB2/
LDB
) is set LOW
and both Read Enables
RENA1
,
RENA2
(
RENB1
,
RENB2
) are
set LOW. Data can be read on the LOW-to-HIGH transition of
the read clock RCLKA (RCLKB).
A read and write should not be performed simultaneously
to the offset registers.
Figure 2. Writing to Offset Registers for FIFOs A and B
8
7
0
Empty Offset (LSB) Reg.
Default Value 007H
8
0
Full Offset (LSB) Reg.
Default Value 007H
7
8
0
Empty Offset (LSB)
Default Value 007H
8
0
Full Offset (LSB)
Default Value 007H
72801 - 256 x 9 x 2
72811 - 512 x 9 x 2
7
7
8
0
(MSB)
0
1
0
0
8
7
0
Empty Offset (LSB) Reg.
Default Value 007H
8
0
Full Offset (LSB) Reg.
Default Value 007H
7
8
0
Empty Offset (LSB)
Default Value 007H
8
0
Full Offset (LSB)
Default Value 007H
72831 - 2048 x 9 x 2
72841 - 4096 x 9 x 2
7
7
8
0
8
0
(MSB)
0000
2
(MSB)
000
3
8
0
8
0
(MSB)
0000
2
(MSB)
000
3
8
0
8
8
(MSB)
0
1
8
7
0
Empty Offset (LSB) Reg.
Default Value 007H
8
0
Full Offset (LSB) Reg.
Default Value 007H
7
72821 - 1024 x 9 x 2
8
0
(MSB)
00
1
8
0
(MSB)
00
1
3034 drw 05
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IDT72841L-15PF 制造商:Integrated Device Technology Inc 功能描述:FIFO, 2 x 4K x 9, Synchronous, 64 Pin, Plastic, QFP
IDT72841L15PF8 功能描述:IC FIFO SYNC 4KX9 15NS 64QFP RoHS:否 類別: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:72271LA10PF
IDT72841L15PFG 功能描述:IC FIFO SYNC 4KX9 15NS 64QFP RoHS:是 類別:集成電路 (IC) >> 邏輯 - FIFO 系列:7200 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(wèn)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(pán) 供應(yīng)商設(shè)備封裝:120-HLQFP（14x14） 包裝:托盤(pán) 產(chǎn)品目錄頁(yè)面:1005 (CN2011-ZH PDF) 其它名稱:296-3984
IDT72841L15PFI 功能描述:IC FIFO SYNC 4KX9 15NS 64QFP RoHS:否 類別: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:72271LA10PF
IDT72841L15PFI8 功能描述:IC FIFO SYNC 4KX9 15NS 64QFP RoHS:否 類別: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:72271LA10PF
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