IDT72261LA20PF IDT, Integrated Device Technology Inc, IDT72261LA20PF Datasheet - Page 9

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IDT72261LA20PF

Manufacturer Part Number
IDT72261LA20PF
Description
IC FIFO 8192X18 LP 20NS 64QFP
Manufacturer
IDT, Integrated Device Technology Inc
Series
7200r
Datasheet

Specifications of IDT72261LA20PF

Function
Synchronous
Memory Size
144K (8K x 18)
Data Rate
50MHz
Access Time
20ns
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
64-TQFP, 64-VQFP
Configuration
Dual
Density
144Kb
Access Time (max)
12ns
Word Size
9b
Organization
16Kx9
Sync/async
Synchronous
Expandable
Yes
Bus Direction
Uni-Directional
Package Type
TQFP
Clock Freq (max)
50MHz
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Supply Current
75mA
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
64
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
72261LA20PF

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Part Number
Manufacturer
Quantity
Price
Part Number:
IDT72261LA20PF
Manufacturer:
IDT
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16
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Manufacturer:
IDT
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Part Number:
IDT72261LA20PF
Manufacturer:
IDT, Integrated Device Technology Inc
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Part Number:
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Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
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.
IDT72261LA/72271LA SuperSync FIFO™
16,384 x 9 and 32,768 x 9
LD
0
0
0
X
1
1
1
8
8
8
8
WEN
X
0
1
1
1
0
1
IDT72261LA ⎯ 16,384 x 9 ⎯ BIT
5
5
7
7
3FFH if LD is HIGH at Master Reset
3FFH if LD is HIGH at Master Reset
07FH if LD is LOW at Master Reset
07FH if LD is LOW at Master Reset
REN
EMPTY OFFSET (MSB) REG.
EMPTY OFFSET (LSB) REG.
X
1
0
1
1
0
1
FULL OFFSET (LSB) REG.
FULL OFFSET (MSB) REG.
Figure 4. Programmable Flag Offset Programming Sequence
DEFAULT VALUE
DEFAULT VALUE
Figure 3. Offset Register Location and Default Values
00H
00H
SEN
X
1
1
1
X
X
0
WCLK
0
0
0
X
X
X
X
0
9
8
8
8
8
RCLK
IDT72271LA ⎯ 32,768 x 9 ⎯ BIT
X
X
X
X
X
6
6
7
7
3FFH if LD is HIGH at Master Reset
07FH if LD is LOW at Master Reset
3FFH if LD is HIGH at Master Reset
07FH if LD is LOW at Master Reset
Parallel write to registers:
Empty Offset (LSB)
Empty Offset (MSB)
Full Offset (LSB)
Full Offset (MSB)
Parallel read from registers:
Empty Offset (LSB)
Empty Offset (MSB)
Full Offset (LSB)
Full Offset (MSB)
Serial shift into registers:
28 bits for the 72261LA
30 bits for the 72271LA
1 bit for each rising WCLK edge
Starting with Empty Offset (LSB)
Ending with Full Offset (MSB)
No Operation
Write Memory
Read Memory
No Operation
EMPTY OFFSET (MSB) REG.
EMPTY OFFSET (LSB) REG.
FULL OFFSET (LSB) REG.
FULL OFFSET (MSB) REG.
DEFAULT VALUE
DEFAULT VALUE
00H
00H
COMMERCIAL AND INDUSTRIAL
Selection
TEMPERATURE RANGES
4671 drw 06
JANUARY 7, 2009
0
0
0
0
4671 drw 07

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