參數(shù)資料
型號(hào): IDT72615L20J8
廠商: IDT, Integrated Device Technology Inc
文件頁(yè)數(shù): 7/17頁(yè)
文件大小: 0K
描述: IC FIFO BY SYNC 512X18X2 68PLCC
標(biāo)準(zhǔn)包裝: 250
系列: 7200
功能: 同步
存儲(chǔ)容量: 18.4K(512 x 18 x 2)
數(shù)據(jù)速率: 50MHz
訪問時(shí)間: 20ns
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: 68-LCC(J 形引線)
供應(yīng)商設(shè)備封裝: 68-PLCC(24x24)
包裝: 帶卷 (TR)
其它名稱: 72615L20J8
15
IDT72605/72615 CMOS SYNCBiFIFO
256 x 18x 2 and 512 x 18 x 2
INDUSTRIALTEMPERATURERANGE
(1)
WRITE
READ
n words in FIFO
n+1 words in FIFO
tCLKL
2704 drw 15
CLKA
ENA
(R/
WA = 0)
PAEAB
CLKB
ENA
(R/
WB = 1)
tCLKH
tCS
tCH
tSKEW2
tPAE
tCS
tCH
tPAE
(2)
WRITE
READ
(2)
Full - (m+1) words in FIFO
Full - m words in FIFO
tCLKL
2704 drw 16
CLKA
ENA
(R/
WA = 0)
PAFAB
CLKB
ENB
(R/
WB = 1)
tCLKH
tCS
tCH
tPAF
tCS
tCH
tPAF
NOTES:
1. tSKEW2 the minimum time between a rising CLKA edge and a rising CLKB edge for PAEAB to change during that clock cycle. If the time between the rising edge of CLKA and
the rising edge of CLKB is less than tSKEW, then PAEAB may not go HIGH until the next CLKB rising edge.
2. If a read is performed on this rising edge of the read clock, there will be Empty + (n + 1) words in the FIFO when PAE goes LOW.
Figure 12. A
→B Programmable Almost-Empty Flag Timing
NOTES:
1. tSKEW2 is the minimum time between a rising CLKB edge and a rising CLKA edge for PAFAB to change during that clock cycle. If the time between the rising edge of CLKB
and the rising edge of CLKA is less than tSKEW2, then PAFAB may not go HIGH until the next CLKA rising edge.
2. If a write is performed on this rising edge of the write clock, there will be Full - (m + 1) words in the FIFO when PAF goes LOW.
Figure 13. A
→B Programmable Almost-Full Flag Timing
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