IDT72V83 IDT [Integrated Device Technology], IDT72V83 Datasheet

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IDT72V83

Manufacturer Part Number
IDT72V83
Description
3.3 Volt CMOS DUAL ASYNCHRONOUS FIFO
Manufacturer
IDT [Integrated Device Technology]
Datasheet

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FEATURES:
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FUNCTIONAL BLOCK DIAGRAM
IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. The AsyncFIFO is a trademark of Integrated Device Technology, Inc.
COMMERICAL TEMPERATURE RANGE
WA
RA
2006 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 CEMOS™ 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
0
RAM
-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.
They are designed for those applications requiring asynchronous and simul-
taneous 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 IDT’s high-speed CMOS technology.
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
)
)
JULY 2006
POINTER
IDT72V81
IDT72V82
IDT72V83
IDT72V84
IDT72V85
READ
FLB/RTB
RESET
LOGIC
DSC-3966/2
RSB
3966 drw 01

Related parts for IDT72V83

IDT72V83 Summary of contents

Page 1

... 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 • • • • • ...

Page 2

... CAPACITANCE Symbol OUT NOTE: 1. Characterized values, not currently tested. AC TEST CONDITIONS IDT72V81 Input Pulse Levels IDT72V82 Input Rise/Fall Times IDT72V83 Input Timing Reference Levels IDT72V84 Output Reference Levels IDT72V85 Output Load Commercial Min. Max. Unit µA – ...

Page 3

... COMMERCIAL TEMPERATURE RANGE Commercial IDT72V81L20 IDT72V82L20 IDT72V83L20 IDT72V84L20 IDT72V85L20 Max. Min. Max. 40 — 33.3 — 30 — 15 — 20 — 10 — — 20 — — 3 — — 5 — — ...

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 ...

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, FF ...

Page 7

IDT72V81/72V82/72V83/72V84/72V85 3.3V CMOS DUAL ASYNCHRONOUS FIFO 512 x 9, 1024 x 9, 2048 x 9, 4096 x 9, 8192 HALF-FULL OR LESS HF WRITE TO LAST PHYSICAL LOCATION XOL ...

Page 8

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 USAGE MODES: Width Expansion Word width may be increased simply by connecting the corresponding input control signals of multiple ...

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 RS Mode Reset 0 Retransmit 1 Read/Write 1 NOTE: 1. ...

Page 10

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 IDT 72V81/72V82/72V83 72V84/72V85 DEPTH EXPANSION BLOCK NOTES: 1. For depth expansion block ...

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 ...

Page 12

ORDERING INFORMATION IDT XXXX X XXX Device Type Power Speed Package NOTES: 1. Industrial temperature range is available by special order. 2. Green parts are available. For specific speeds contact your local sales office. DATASHEET DOCUMENT HISTORY 07/17/2006 pgs. 1 ...

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