72V293L10PFI Integrated Device Technology (Idt), 72V293L10PFI Datasheet - Page 30

• Manufacturer Part Number: 72V293L10PFI
• Description: FIFO Mem Sync Dual Depth/Width Uni-Dir 64K x 18/128K x 9 80-Pin TQFP
• Manufacturer: Integrated Device Technology (Idt)

Specifications of 72V293L10PFI

• Package: 80TQFP
• Configuration: Dual
• Bus Directional: Uni-Directional
• Density: 1.125 Mb
• Organization: 64Kx18|128Kx9
• Data Bus Width: 18|9 Bit
• Timing Type: Synchronous
• Expansion Type: Depth|Width
• Typical Operating Supply Voltage: 3.3 V
• Operating Temperature: -40 to 85 °C

NOTES:
1. Retransmit setup is complete after OR returns LOW.
2. No more than D - 2 words may be written to the FIFO between Reset (Master or Partial) and Retransmit setup. Therefore, IR will be LOW throughout the Retransmit setup procedure.
3. OE = LOW
4. W
5. There must be at least two words written to the FIFO before a Retransmit operation can be invoked.
6. RM is set HIGH during MRS.
IDT72V223/233/243/253/263/273/283/293 3.3V HIGH DENSITY SUPERSYNC II
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
Q
WCLK
RCLK
0
WEN
1
REN
- Q
PAE
, W
PAF
OR
HF
RT
If x18 Input or x18 Output bus Width is selected, D = 513 for the IDT72V223, 1,025 for the IDT72V233, 2,049 for the IDT72V243, 4,097 for the IDT72V253, 8,193 for the IDT72V263,
16,385 for the IDT72V273, 32,769 for the IDT72V283 and 65,537 for the IDT72V293.
If both x9 Input and x9 Output bus Widths are selected, D = 1,025 for the IDT72V223, 2,049 for the IDT72V233, 4,097 for the IDT72V243, 8,193 for the IDT72V253, 16,385
for the IDT72V263, 32,769 for the IDT72V273, 65,537 for the IDT72V283 and 131,073 for the IDT72V293.
2
n
, W
3
t
ENS
= first, second and third words written to the FIFO after Master Reset.
W
x
t
ENH
t
ENS
t
RTS
t
RTS
W
x+1
t
t
t
REF
ENH
HF
t
SKEW2
Figure 12. Retransmit Timing (FWFT Mode)
1
2
t
PAFS
1
t
A
t
REF
30
t
ENS
TM
NARROW BUS FIFO
W
1
(4)
2
t
A
t
PAES
W
2
(4)
3
t
A
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
FEBRUARY 11, 2009
W
3
(4)
t
4
A
4666 drw15
t
ENH
W
4