72V82L15PA IDT, 72V82L15PA Datasheet

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72V82L15PA

Manufacturer Part Number
72V82L15PA
Description
FIFO 1Kx9 ASYNCHRONOUS DUAL FIFO 3.3V
Manufacturer
IDT
Datasheet

Specifications of 72V82L15PA

Number Of Circuits
2
Data Bus Width
9 bit
Bus Direction
Unidirectional
Memory Size
18 KB
Timing Type
Asynchronous
Organization
1 K x 9 x 2
Access Time
15 ns
Supply Voltage - Max
3.6 V
Supply Voltage - Min
3 V
Maximum Operating Current
100 mA
Maximum Operating Temperature
+ 70 C
Package / Case
TSSOP-56
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Part # Aliases
IDT72V82L15PA
©
FEATURES:
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FUNCTIONAL BLOCK DIAGRAM
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. The AsyncFIFO™ is a trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
WA
RA
2012 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
The IDT72V81 is equivalent to two IDT72V01 - 512 x 9 FIFOs
The IDT72V82 is equivalent to two IDT72V02 - 1,024 x 9 FIFOs
The IDT72V83 is equivalent to two IDT72V03 - 2,048 x 9 FIFOs
The IDT72V84 is equivalent to two IDT72V04 - 4,096 x 9 FIFOs
The IDT72V85 is equivalent to two IDT72V05 - 8,192 x 9 FIFOs
Low power consumption
— Active: 330 mW (max.)
— Power-down: 18 mW (max.)
Ultra high speed—15 ns access time
Asynchronous and simultaneous read and write
Offers optimal combination of data capacity, small foot print
and functional flexibility
Ideal for bidirectional, width expansion, depth expansion, bus-
matching, and data sorting applications
Status Flags: Empty, Half-Full, Full
Auto-retransmit capability
High-performance CMOS™ technology
Space-saving TSSOP package
Industrial temperature range (–40° ° ° ° ° C to +85° ° ° ° ° C) is available
Green parts available, see ordering information
XIA
CONTROL
CONTROL
WRITE
READ
EXPANSION
LOGIC
LOGIC
FLAG
XOA/HFA
POINTER
WRITE
FFA
BUFFERS
THREE-
STATE
EFA
3.3 Volt CMOS DUAL ASYNCHRONOUS FIFO
DUAL 512 x 9, DUAL 1,024 x 9
DUAL 2,048 x 9, DUAL 4,096 X 9
DUAL 8,192 X 9
DATA INPUTS
(DA
OUTPUTS
(QA
ARRAY A
1,024 x 9
2,048 x 9
4,096 x 9
8,192 x 9
512 x 9
DATA
RAM
0
-DA
0
-QA
8
)
8
)
POINTER
READ
FLA/RTA
RESET
LOGIC
RSA
1
DESCRIPTION:
load and empty data on a first-in/first-out basis. These devices are functional and
compatible to two IDT72V01/72V02/72V03/72V04/72V05 FIFOs in a single
package with all associated control, data, and flag lines assigned to separate
pins. The devices use Full and Empty flags to prevent data overflow and
underflow and expansion logic to allow for unlimited expansion capability in both
word size and depth.
pointers, with no address information required to load and unload data. Data
is toggled in and out of the devices through the use of the Write (W) and Read
(R) pins.
bits at the user’s option. This feature is especially useful in data communications
applications where it is necessary to use a parity bit for transmission/reception
error checking. It also features a Retransmit (RT) capability that allows for reset
of the read pointer to its initial position when RT is pulsed low to allow for
retransmission from the beginning of data. A Half-Full Flag is available in the
single device mode and width expansion modes.
designed for those applications requiring asynchronous and simultaneous
read/writes in multiprocessing and rate buffer applications.
RB
The IDT72V81/72V82/72V83/72V84/72V85 are dual-FIFO memories that
The reads and writes are internally sequential through the use of ring
The devices utilize a 9-bit wide data array to allow for control and parity
These FIFOs are fabricated using high-speed CMOS technology. They are
WB
XIB
CONTROL
CONTROL
WRITE
READ
EXPANSION
LOGIC
LOGIC
FLAG
XOB/HFB
POINTER
WRITE
FFB
BUFFERS
THREE-
STATE
EFB
DATA INPUTS
(DB
OUTPUTS
(QB
ARRAY A
1,024 x 9
2,048 x 9
4,096 x 9
8,192 x 9
DATA
512 x 9
0
RAM
0
-DB
-QB
8
)
8
)
JUNE 2012
POINTER
IDT72V81
IDT72V82
IDT72V83
IDT72V84
IDT72V85
READ
FLB/RTB
RESET
LOGIC
DSC-3966/5
RSB
3966 drw 01

Related parts for 72V82L15PA

72V82L15PA Summary of contents

Page 1

... FFA EFA XOA/HFA IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. The AsyncFIFO™ trademark of Integrated Device Technology, Inc. COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES © 2012 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. ...

Page 2

... IDT72V81/72V82/72V83/72V84/72V85 3.3V CMOS DUAL ASYNCHRONOUS FIFO 512 x 9, 1024 x 9, 2048 x 9, 4096 x 9, 8192 x 9 PIN CONFIGURATION FFA GND XOA/HFA 13 EFA 14 FFB ...

Page 3

... XI Recovery Time XIR t XI Set-up Time XIS NOTES: 1. Timings referenced Test Conditions. 2. Pulse widths less than minimum value are not allowed. 3. Values guaranteed by design, not currently tested. 4. Only applies to read data flow-through mode. (1) = 3.3V±0.3V -40°C to +85° Commercial ...

Page 4

... If the read pointer is not moved after Reset (RS), the Full-Flag (FF) will go low after 512 writes for the IDT72V81, 1,024 writes for the IDT72V82, 2,048 writes for the IDT72V83, 4,096 writes for the IDT72V84 and 8,192 writes for the IDT72V85. EMPTY FLAG ( EF ) ...

Page 5

... IDT72V81/72V82/72V83/72V84/72V85 3.3V CMOS DUAL ASYNCHRONOUS FIFO 512 x 9, 1024 x 9, 2048 x 9, 4096 x 9, 8192 HF, FF NOTES: 1. EF, FF, HF may change status during Reset, but flags will be valid and around the rising edge of RS ...

Page 6

... IDT72V81/72V82/72V83/72V84/72V85 3.3V CMOS DUAL ASYNCHRONOUS FIFO 512 x 9, 1024 x 9, 2048 x 9, 4096 x 9, 8192 x 9 LAST READ IGNORED READ REF VALID DATA OUT RT W,R HF, EF FIRST WRITE ADDITIONAL WRITES t WEF Figure 5. Empty Flag From Last Read to First Write ...

Page 7

... XIS Figure 11. Expansion In strates a four-FIFO Depth Expansion using two IDT72V81/72V82/72V83/ 72V84/72V85s. Any depth can be attained by adding additional IDT72V81/ 72V82/72V83/72V84/72V85s. These FIFOs operate in the Depth Expansion mode when the following conditions are met: 1. The first FIFO must be designated by grounding the First Load (FL) control input ...

Page 8

... FULL FLAG (FFA) RESET (RS) Figure 13. Block Diagram of One 512 x 18, 1,024 x 18, 2,048 x 18, 4,096 x 18 and 8,192 x 18 FIFO Memory Used in Width Expansion Mode FIFO permits a reading of a single word after writing one word of data into an empty FIFO. The data is enabled on the bus in (t ...

Page 9

... IDT72V81/72V82/72V83/72V84/72V85 3.3V CMOS DUAL ASYNCHRONOUS FIFO 512 x 9, 1024 x 9, 2048 x 9, 4096 x 9, 8192 x 9 TABLE I—RESET AND RETRANSMIT Single Device Configuration/Width Expansion Mode Mode RS Reset 0 Retransmit 1 Read/Write 1 NOTE: 1. Pointer will increment if flag is High. TABLE II—RESET AND FIRST LOAD TRUTH TABLE ...

Page 10

... IDT 72V81/72V82/72V83 72V84/72V85 DEPTH EXPANSION BLOCK NOTES: 1. For depth expansion block see section on Depth Expansion and Figure 14. 2. For Flag detection see section on Width Expansion and Figure 13. SIDE 1 DATA DATA OUT ...

Page 11

... IDT72V81/72V82/72V83/72V84/72V85 3.3V CMOS DUAL ASYNCHRONOUS FIFO 512 x 9, 1024 x 9, 2048 x 9, 4096 x 9, 8192 DATA IN DATA OUT t RFF t A DATA VALID OUT Figure 18. Write Data Flow-Through Mode 11 COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES t WPF WFF DATA VALID 3966 drw 20 ...

Page 12

... Dual FIFO 72V82 2,048 x 9 ⎯ 3.3V Dual FIFO 72V83 4,096 x 9 ⎯ 3.3V Dual FIFO 72V84 8,192 x 9 ⎯ 3.3V Dual FIFO 72V85 for SALES: 800-345-7015 or 408-284-8200 fax: 408-284-2775 www.idt.com 12 Access Time ( Speed in Nanoseconds 3966 drw 21 for Tech Support: 408-360-1753 email: FIFOhelp@idt.com ...

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