IDT72V291L10PF IDT, Integrated Device Technology Inc, IDT72V291L10PF Datasheet

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IDT72V291L10PF

Manufacturer Part Number
IDT72V291L10PF
Description
IC FIFO SS 32768X36 10NS 64QFP
Manufacturer
IDT, Integrated Device Technology Inc
Series
72Vr
Datasheet

Specifications of IDT72V291L10PF

Function
Synchronous
Memory Size
1.1M (32K x 36)
Data Rate
100MHz
Access Time
10ns
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
72V291L10PF

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
IDT72V291L10PF
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
IDT72V291L10PF8
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
FUNCTIONAL BLOCK DIAGRAM
FEATURES:
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©2009 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. The SuperSync FIFO is a trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
Choose among the following memory organizations:
Pin-compatible with the IDT72V261/72V271 SuperSync FIFOs
10ns read/write cycle time (6.5ns access time)
Fixed, low first word data latency time
Auto power down minimizes standby power consumption
Master Reset clears entire FIFO
Partial Reset clears data, but retains programmable
settings
Retransmit operation with fixed, low first word data
latency time
Empty, Full and Half-Full flags signal FIFO status
Programmable Almost-Empty and Almost-Full flags, each flag can
default to one of two preselected offsets
Program partial flags by either serial or parallel means
Select IDT Standard timing (using EF
Fall Through timing (using OR
Output enable puts data outputs into high impedance state
Easily expandable in depth and width
IDT72V281
IDT72V291
MRS
PRS
WRITE CONTROL
WRITE POINTER
WEN
65,536 x 9
131,072 x 9
RESET
LOGIC
LOGIC
OR
OR
OR
OR and IR
WCLK
EF
EF
EF and FF
EF
IR IR
IR IR flags)
3.3 VOLT CMOS SuperSync FIFO™
65,536 x 9
131,072 x 9
FF
FF
FF flags) or First Word
FF
OE
OUTPUT REGISTER
INPUT REGISTER
RAM ARRAY
131,072 x 9
D
Q
65,536 x 9
0
0
-D
-Q
8
8
1
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DESCRIPTION:
First-In-First-Out (FIFO) memories with clocked read and write controls.
These FIFOs offer numerous improvements over previous SuperSync
FIFOs, including the following:
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• • • • •
• • • • •
Industrial Temperature Range (-40°C to + 85°C) is available
Independent Read and Write clocks (permit reading and writing
simultaneously)
Available in the 64-pin Thin Quad Flat Pack (TQFP) and the 64-pin
Slim Thin Quad Flat Pack (STQFP)
High-performance submicron CMOS technology
Green parts available, see ordering information
The limitation of the frequency of one clock input with respect to the other has
been removed. The Frequency Select pin (FS) has been removed, thus
it is no longer necessary to select which of the two clock inputs, RCLK or
WCLK, is running at the higher frequency.
The period required by the retransmit operation is now fixed and short.
The first word data latency period, from the time the first word is written to an
empty FIFO to the time it can be read, is now fixed and short. (The variable
clock cycle counting delay associated with the latency period found on
previous SuperSync devices has been eliminated on this SuperSync family.)
The IDT72V281/72V291 are exceptionally deep, high speed, CMOS
OFFSET REGISTER
READ POINTER
LOGIC
CONTROL
FLAG
LOGIC
READ
LD
SEN
REN
RCLK
FEBRUARY 2009
4513 drw 01
RT
FF/IR
PAF
EF/OR
PAE
HF
FWFT/SI
IDT72V281
IDT72V291
DSC-4513/3

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IDT72V291L10PF Summary of contents

Page 1

FEATURES: • • • • • Choose among the following memory organizations: IDT72V281 65,536 x 9 IDT72V291 131,072 x 9 • • • • • Pin-compatible with the IDT72V261/72V271 SuperSync FIFOs • • • • • 10ns read/write cycle time ...

Page 2

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 DESCRIPTION (Continued) SuperSync FIFOs are particularly appropriate for network, video, telecommu- nications, data communications and other applications that need to buffer large amounts of data. The input port ...

Page 3

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 DESCRIPTION (Continued) In FWFT mode, the first word written to an empty FIFO is clocked directly to the data output lines after three transitions of the RCLK signal. ...

Page 4

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 PIN DESCRIPTION Symbol Name D –D Data Inputs 0 8 MRS Master Reset PRS Partial Reset RT Retransmit FWFT/SI First Word Fall Through/Serial In WCLK Write Clock WEN ...

Page 5

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 ABSOLUTE MAXIMUM RATINGS Symbol Rating V Terminal Voltage TERM with respect to GND T Storage STG Temperature I DC Output Current OUT NOTE: 1. Stresses greater than those ...

Page 6

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 ELECTRICAL CHARACTERISTICS o (Commercial 3.3V ± 0.3V + Symbol Parameter f Clock Cycle Frequency S t Data Access ...

Page 7

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 FUNCTIONAL DESCRIPTION TIMING MODES: IDT STANDARD vs FIRST WORD FALL THROUGH (FWFT) MODE The IDT72V281/72V291 support two different timing modes of opera- tion: IDT Standard mode or First ...

Page 8

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 addition to loading offset values into the FIFO, it also possible to read the current offset values only possible to read offset values via parallel ...

Page 9

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 72V281 (65,536 x 9›BIT EMPTY OFFSET (LSB) REGISTER DEFAULT VALUE 7FH LOW at Master Reset FFH HIGH at Master Reset ...

Page 10

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 SERIAL PROGRAMMING MODE If Serial Programming mode has been selected, as described above, then programming of PAE and PAF values can be achieved by using a combination of ...

Page 11

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 Parallel reading of the offset registers is always permitted regardless of which timing mode (IDT Standard or FWFT modes) has been selected. RETRANSMIT OPERATION The Retransmit operation allows ...

Page 12

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 SIGNAL DESCRIPTION INPUTS: DATA Data inputs for 9-bit wide data. CONTROLS: MRS MRS MRS MRS) MASTER RESET (MRS A Master Reset ...

Page 13

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 When WEN is HIGH, no new data is written in the RAM array on each WCLK cycle. To prevent data overflow in the IDT Standard mode, FF will ...

Page 14

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 PROGRAMMABLE ALMOST-FULL FLAG (PAF The Programmable Almost-Full flag (PAF) will go LOW when the FIFO reaches the almost-full condition. In IDT Standard mode reads are performed ...

Page 15

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 MRS REN WEN t FWFT FWFT/ SEN EF/OR FF/IR PAE PAF RSS t RSS t RSS ...

Page 16

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 PRS REN WEN RT SEN EF/OR FF/IR PAE PAF RSS t RSS t RSS t RSS t RSF ...

Page 17

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 WRITE WCLK 1 (1) t SKEW1 WEN RCLK t t ENS ENH REN DATA ...

Page 18

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES ...

Page 19

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES ...

Page 20

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 RCLK t t ENS ENH t RTS REN WCLK t RTS WEN t ENS RT EF PAE HF PAF ...

Page 21

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 RCLK t t ENH ENS t RTS REN WCLK t RTS WEN t ENS RT OR PAE HF PAF NOTES: 1. ...

Page 22

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 CLK t t CLKH CLKL WCLK t LDS LD t ENS WEN PAE OFFSET (LSB) Figure 14. Parallel Loading of ...

Page 23

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 CLKH CLKL WCLK t t ENS ENH WEN PAF D - (m+1) words in FIFO RCLK REN NOTES PAF offset . 2. D ...

Page 24

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 OPTIONAL CONFIGURATIONS WIDTH EXPANSION CONFIGURATION Word width may be increased simply by connecting together the control signals of multiple devices. Status flags can be detected from any one ...

Page 25

IDT72V281/72V291 3.3V CMOS SUPERSYNC FIFO 65,536 x 9 and 131,072 x 9 FWFT/SI FWFT/SI WRITE CLOCK WCLK WRITE ENABLE WEN IDT INPUT READY IR 72V281 72V291 n DATA IN Dn Figure 22. Block Diagram of 131,072 x 9 and 262,144 ...

Page 26

ORDERING INFORMATION XXXXX X XX Device Type Power Speed NOTES: 1. Industrial temperature range product for the 15ns speed grade is available as a standard device. 2. Green parts are available, for specific speeds and packages contact your sales office. ...

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