参数资料
型号: 72V293L6PFG
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: FIFO
英文描述: 64K X 18 OTHER FIFO, 4 ns, PQFP80
封装: GREEN, PLASTIC, TQFP-80
文件页数: 8/45页
文件大小: 381K
代理商: 72V293L6PFG
16
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
IDT72V223/233/243/253/263/273/283/293 3.3V HIGH DENSITY SUPERSYNC IITM NARROW BUS FIFO
512 x 18, 1K x 9/18, 2K x 9/18, 4K x 9/18, 8K x 9/18, 16K x 9/18, 32K x 9/18, 64K x 9/18, 128K x 9
FEBRUARY 11, 2009
Figure 3. Programmable Flag Offset Programming Sequence (Continued)
WCLK
RCLK
X
XX
X
XX
LD
0
X
1
0
WEN
0
1
0
X
1
REN
1
0
1
X
0
1
1X
SEN
1
X
0
No Operation
Write Memory
Read Memory
No Operation
Parallel write to registers:
Empty Offset (LSB)
Empty Offset (MSB)
Full Offset (LSB)
Full Offset (MSB)
Serial shift into registers:
Ending with Full Offset (MSB)
IDT72V223, IDT72V233
IDT72V243, IDT72V253
IDT72V263, IDT72V273
IDT72V283, IDT72V293
Parallel read from registers:
Empty Offset (LSB)
Empty Offset (MSB)
Full Offset (LSB)
Full Offset (MSB)
20 bits for the IDT72V223
22 bits for the IDT72V233
24 bits for the IDT72V243
26 bits for the IDT72V253
28 bits for the IDT72V263
30 bits for the IDT72V273
32 bits for the IDT72V283
34 bits for the IDT72V293
1 bit for each rising WCLK edge
Starting with Empty Offset (LSB)
Serial shift into registers:
Ending with Full Offset (MSB)
18 bits for the IDT72V223
20 bits for the IDT72V233
22 bits for the IDT72V243
24 bits for the IDT72V253
26 bits for the IDT72V263
28 bits for the IDT72V273
30 bits for the IDT72V283
32 bits for the IDT72V293
1 bit for each rising WCLK edge
Starting with Empty Offset (LSB)
x9 to x9 Mode
All Other Modes
4666 drw06a
NOTES:
1. The programming method can only be selected at Master Reset.
2. Parallel reading of the offset registers is always permitted regardless of which programming method has been selected.
3. The programming sequence applies to both IDT Standard and FWFT modes.
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