IDT72V261LA10PFG INTEGRATED DEVICE TECHNOLOGY, IDT72V261LA10PFG Datasheet

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IDT72V261LA10PFG

Manufacturer Part Number
IDT72V261LA10PFG
Description
IC, FIFO, 144K, 16KX9, 3.3V, TQFP64
Manufacturer
INTEGRATED DEVICE TECHNOLOGY
Datasheet

Specifications of IDT72V261LA10PFG

Memory Size
144Kbit
Data Bus Width
9bit
Clock Frequency
50MHz
Access Time
12ns
Supply Voltage Range
3V To 3.6V
Memory Case Style
TQFP
No. Of Pins
64
Operating Temperature Range
0°C To
Memory Configuration
16384 X 9
Fifo Function
Synchronous
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FUNCTIONAL BLOCK DIAGRAM
© 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 is a trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
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FEATURES:
Choose among the following memory organizations:
Pin-compatible with the IDT72V281/72V291 and IDT72V2101/
72V2111SuperSync FIFOs
Functionally compatible with the 5 Volt IDT72261/72271 family
10ns read/write cycle time (6.5ns access time)
Fixed, low first word data latency time
5V input tolerant
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
IDT72V261LA
IDT72V271LA
MRS
PRS
WRITE CONTROL
WRITE POINTER
WEN
16,384 x 9
32,768 x 9
RESET
LOGIC
LOGIC
WCLK
3.3 VOLT CMOS SuperSync FIFO™
16,384 x 9
32,768 x 9
OE
OUTPUT REGISTER
INPUT REGISTER
RAM ARRAY
16,384 x 9
32,768 x 9
D
Q
0
0
-D
-Q
8
8
1
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DESCRIPTION:
the IDT72261/72271 designed to run off a 3.3V supply for very low power
consumption. The IDT72V261LA/72V271LA are exceptionally deep, high
speed, CMOS First-In-First-Out (FIFO) memories with clocked read and
Program partial flags by either serial or parallel means
Select IDT Standard timing (using EF and FF flags) or First
Word Fall Through timing (using OR and IR flags)
Output enable puts data outputs into high impedance state
Easily expandable in depth and width
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
Industrial temperature range (–40° ° ° ° ° C to +85° ° ° ° ° C) is available
Green parts available, see ordering information
The IDT72V261LA/72V271LA are functionally compatible versions of
OFFSET REGISTER
READ POINTER
LOGIC
CONTROL
FLAG
LOGIC
READ
LD
SEN
REN
RCLK
JANUARY 2009
IDT72V261LA
IDT72V271LA
4673 drw 01
FF/IR
PAF
PAE
RT
EF/OR
HF
FWFT/SI
DSC-4673/4

Related parts for IDT72V261LA10PFG

IDT72V261LA10PFG Summary of contents

Page 1

... LOGIC PRS IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. The SuperSync is a trademark of Integrated Device Technology, Inc. COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES © 2009 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. ...

Page 2

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 DESCRIPTION (CONTINUED) write controls. These FIFOs offer numerous improvements over previous SuperSync FIFOs, including the following: • The limitation of the frequency of one clock input with ...

Page 3

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 DESCRIPTION (CONTINUED) There are two possible timing modes of operation with these devices: IDT Standard mode and First Word Fall Through (FWFT) mode. In IDT Standard mode, ...

Page 4

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 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 ...

Page 5

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 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 ...

Page 6

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 ELECTRICAL CHARACTERISTICS (Commercial 3.3V ± 0.3V 0°C to +70°C; Industrial Symbol Parameter f Clock Cycle Frequency S t Data ...

Page 7

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 FUNCTIONAL DESCRIPTION TIMING MODES: IDT STANDARD VS FIRST WORD FALL THROUGH (FWFT) MODE The IDT72V261LA/72V271LA support two different timing modes of operation: IDT Standard mode or First ...

Page 8

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 PROGRAMMING FLAG OFFSETS Full and Empty Flag offset values are user programmable. The IDT72V261LA/72V271LA has internal registers for these offsets. De- fault settings are stated in the ...

Page 9

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 IDT72V261LA ⎯ 16,384 x 9 − BIT 8 7 EMPTY OFFSET (LSB) REG. DEFAULT VALUE 07FH LOW at Master Reset 3FFH ...

Page 10

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 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 ...

Page 11

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 When EF goes HIGH, Retransmit setup is complete and read opera- tions may begin starting with the first location in memory. Since IDT Standard mode is selected, ...

Page 12

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 SIGNAL DESCRIPTION INPUTS: DATA Data inputs for 9-bit wide data. CONTROLS: MASTER RESET (MRS) A Master Reset is accomplished whenever ...

Page 13

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 WRITE CLOCK (WCLK) A write cycle is initiated on the rising edge of the WCLK input. Data setup and hold times must be met with respect to ...

Page 14

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 FWFT mode, the total number of writes necessary to deassert IR is one greater than needed to assert FF in IDT Standard mode. FF/IR is synchronous and ...

Page 15

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 MRS REN WEN t FWFT FWFT/ SEN EF/OR FF/IR PAE PAF RSS RSR t t ...

Page 16

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 PRS REN WEN RT SEN EF/OR FF/IR PAE PAF RSS t RSS t RSS t RSS t RSF ...

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IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 WRITE WCLK 1 (1) t SKEW1 WEN RCLK t t ENS ENH REN ...

Page 18

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 COMMERCIAL AND INDUSTRIAL 18 TEMPERATURE RANGES JANUARY 30, 2009 ...

Page 19

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 COMMERCIAL AND INDUSTRIAL 19 TEMPERATURE RANGES JANUARY 30, 2009 ...

Page 20

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 RCLK t ENH t ENS t RTS REN WCLK WEN t ENS RT EF PAE HF PAF NOTES: ...

Page 21

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 RCLK t ENH t ENS t RTS REN WCLK t RTS WEN t ENS RT OR PAE HF PAF NOTES: ...

Page 22

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 CLK t t CLKH CLKL WCLK t LDS LD t ENS WEN PAE OFFSET (LSB) Figure 14. Parallel Loading ...

Page 23

IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 CLKH CLKL WCLK t t ENS ENH WEN PAF D - (m+1) words in FIFO RCLK REN NOTES PAF offset ...

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IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 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 ...

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IDT72V261LA/72V271LA 3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9 DEPTH EXPANSION CONFIGURATION (FWFT MODE ONLY) The IDT72V261LA can easily be adapted to applications requiring depths greater than 16,384 and 32,768 for the IDT72V271LA with a 9-bit ...

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ORDERING INFORMATION XXXXX X XX Device Type Power Speed NOTES: 1. Industrial temperature range product for 15ns speed grade is available as a standard device. All other speed grades are available by special order. 2. Green parts available. For specific ...

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... CC1 IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. The SuperSync is a trademark of Integrated Device Technology, Inc. COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES © 2009 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. ...

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