IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFOTM 65,536 x 9 a" />
參數(shù)資料
型號: IDT72V281L20TF8
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 25/26頁
文件大?。?/td> 0K
描述: IC FIFO 32768X18 20NS 64QFP
標準包裝: 1,250
系列: 72V
功能: 同步
存儲容量: 589K(32K x 18)
數(shù)據(jù)速率: 50MHz
訪問時間: 20ns
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
供應商設備封裝: 64-TQFP(10x10)
包裝: 帶卷 (TR)
其它名稱: 72V281L20TF8
8
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFOTM
65,536 x 9 and 131,072 x 9
Number of
Words in
FIFO
0
1 to n (1)
0
1 to n (1)
(n+1) to 32,768
32,769 to (65,536-(m+1))
(65,536-m) (2) to 65,535
65,536
72V281
72V291
FF PAF HF PAE EF
HH
HL
L
HH
HL
H
HH
H
HH
L
H
HL
L
H
LL
LH
H
4513 drw 05
0
1 to n+1(1)
0
1 to n+1(1)
(n+2) to 65,537
65,538 to (131,073-(m+1))
(131,073-m)
(2)
to 131,072
131,073
IR PAF HF PAE OR
LH
H
L
H
LH
H
L
H
HHL
LH
L
H
L
LLL
H
L
HL
L
H
L
72V281
72V291
Number of
Words in
FIFO
(n+1) to 65,536
65,537 to (131,072-(m+1))
(131,072-m) (2) to 131,071
131,072
(n+2) to 32,769
32,770 to (65,537-(m+1))
(65,537-m)
(2)
to 65,536
65,537
NOTES:
1. n = Empty Offset, Default Values: n = 127 when parallel offset loading is selected or n = 1,023 when serial offset loading is selected.
2. m = Full Offset, Default Values: m = 127 when parallel offset loading is selected or m = 1,023 when serial offset loading is selected.
NOTES:
1. n = Empty Offset, Default Values: n = 127 when parallel offset loading is selected or n = 1,023 when serial offset loading is selected.
2. m = Full Offset, Default Values: m = 127 when parallel offset loading is selected or m = 1,023 when serial offset loading is selected.
In addition to loading offset values into the FIFO, it also possible to read the
current offset values. It is only possible to read offset values via parallel read.
Figure 4, Programmable Flag Offset Programming Sequence, summa-
rizes the control pins and sequence for both serial and parallel programming
modes. For a more detailed description, see discussion that follows.
The offset registers may be programmed (and reprogrammed) any time
after Master Reset, regardless of whether serial or parallel programming
has been selected.
TABLE 1 STATUS FLAGS FOR IDT STANDARD MODE
TABLE 2 STATUS FLAGS FOR FWFT MODE
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