IDT72V265LA15TFI IDT, Integrated Device Technology Inc, IDT72V265LA15TFI Datasheet

IC FIFO SS 16384X18 15NS 64STQFP

IDT72V265LA15TFI

Manufacturer Part Number
IDT72V265LA15TFI
Description
IC FIFO SS 16384X18 15NS 64STQFP
Manufacturer
IDT, Integrated Device Technology Inc
Series
72Vr
Datasheet

Specifications of IDT72V265LA15TFI

Function
Synchronous
Memory Size
288K (16K x 18)
Data Rate
67MHz
Access Time
15ns
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
64-STQFP
Configuration
Dual
Density
288Kb
Access Time (max)
10ns
Word Size
18b
Organization
16Kx18
Sync/async
Synchronous
Expandable
Yes
Bus Direction
Uni-Directional
Package Type
STQFP
Clock Freq (max)
66.7MHz
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
3.6V
Supply Current
55mA
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
64
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
72V265LA15TFI

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
IDT72V265LA15TFI
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
IDT72V265LA15TFI8
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
©2008 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 and the SuperSyncFIFO is a trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
FEATURES:
• • • • •
• • • • •
• • • • •
• • • • •
• • • • •
• • • • •
• • • • •
• • • • •
• • • • •
• • • • •
• • • • •
• • • • •
• • • • •
• • • • •
FUNCTIONAL BLOCK DIAGRAM
Choose among the following memory organizations:
Pin-compatible with the IDT72V275/72V285 and IDT72V295/
72V2105 SuperSync FIFOs
Functionally compatible with the 5 Volt IDT72255/72265 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
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)
IDT72V255LA
IDT72V265LA
MRS
PRS
WRITE CONTROL
WRITE POINTER
WEN
8,192 x 18
16,384 x 18
RESET
LOGIC
LOGIC
WCLK
3.3 VOLT CMOS SuperSync FIFO™
8,192 x 18
16,384 x 18
OE
OUTPUT REGISTER
INPUT REGISTER
RAM ARRAY
16,384 x 18
8,192 x 18
D
Q
0
0
-D
-Q
17
17
1
• • • • •
• • • • •
• • • • •
• • • • •
• • • • •
• • • • •
• • • • •
DESCRIPTION:
IDT72255/72265 designed to run off a 3.3V supply for very low power
consumption. The IDT72V255LA/72V265LA are exceptionally deep, high
speed, CMOS First-In-First-Out (FIFO) memories with clocked read and
write controls. These FIFOs offer numerous improvements over previous
SuperSync FIFOs, including the following:
• • • • •
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 IDT72V255LA/72V265LA are functionally compatible versions of the
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.
OFFSET REGISTER
READ POINTER
LOGIC
CONTROL
FLAG
LOGIC
READ
LD
SEN
REN
RCLK
4672 drw 01
OCTOBER 2008
IDT72V255LA
IDT72V265LA
PAE
RT
FF/IR
PAF
EF/OR
HF
FWFT/SI
DSC-4672/3

Related parts for IDT72V265LA15TFI

IDT72V265LA15TFI Summary of contents

Page 1

FEATURES: • • • • • Choose among the following memory organizations: IDT72V255LA 8,192 x 18 IDT72V265LA 16,384 x 18 • • • • • Pin-compatible with the IDT72V275/72V285 and IDT72V295/ 72V2105 SuperSync FIFOs • • • • • Functionally ...

Page 2

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 DESCRIPTION (CONTINUED) • • • • • The period required by the retransmit operation is now fixed and short. • • • • • The first word data ...

Page 3

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 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, the ...

Page 4

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 PIN DESCRIPTION Symbol Name D –D Data Inputs 0 17 MRS Master Reset PRS Partial Reset RT Retransmit FWFT/SI First Word Fall Through/Serial In WCLK Write Clock WEN ...

Page 5

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 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

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 ELECTRICAL CHARACTERISTICS (Commercial 3.3V ± 0.3V 0°C to +70°C; Industrial Symbol Parameter f Clock Cycle Frequency S t Data Access ...

Page 7

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 FUNCTIONAL DESCRIPTION TIMING MODES: IDT STANDARD vs FIRST WORD FALL THROUGH (FWFT) MODE The IDT72V255LA/72V265LA support two different timing modes of operation: IDT Standard mode or First Word ...

Page 8

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 PROGRAMMING FLAG OFFSETS Full and Empty Flag offset values are user programmable. The IDT72V255LA/72V265LA has internal registers for these offsets. Default settings are stated in the footnotes of ...

Page 9

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 IDT72V255LA ⎯ 8,192 BIT 17 12 EMPTY OFFSET REGISTER DEFAULT VALUE 07FH LOW at Master Reset, 3FFH HIGH at ...

Page 10

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 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 combi- nation ...

Page 11

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 FWFT mode is selected, the FIFO will mark the beginning of the Retransmit setup by setting OR HIGH. During this period, the internal read pointer is set ...

Page 12

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 SIGNAL DESCRIPTION INPUTS: DATA IN (D0 - D17) Data inputs for 18-bit wide data. CONTROLS: MASTER RESET (MRS) A Master Reset is accomplished whenever the MRS input is ...

Page 13

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 WRITE ENABLE (WEN) When the WEN input is LOW, data may be loaded into the FIFO RAM array on the rising edge of every WCLK cycle if the ...

Page 14

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 EMPTY FLAG (EF/OR) This is a dual purpose pin. In the IDT Standard mode, the Empty Flag (EF) function is selected. When the FIFO is empty, EF will ...

Page 15

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 MRS REN WEN t FWFT FWFT/ SEN EF/OR FF/IR PAE PAF RSS t RSS t RSS t ...

Page 16

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 PRS REN WEN RT SEN EF/OR FF/IR PAE PAF RSS t RSS t RSS t RSS t RSF t ...

Page 17

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 WRITE WCLK 1 (1) t SKEW1 WEN RCLK t t ENS ENH REN DATA IN ...

Page 18

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 COMMERCIAL AND INDUSTRIAL 18 TEMPERATURE RANGES OCTOBER 22, 2008 ...

Page 19

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 COMMERCIAL AND INDUSTRIAL 19 TEMPERATURE RANGES OCTOBER 22, 2008 ...

Page 20

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 RCLK t t ENS ENH t RTS REN WCLK WEN t ENS RT EF PAE HF PAF NOTES: 1. ...

Page 21

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 RCLK t t ENH ENS t RTS REN WCLK t RTS WEN t ENS RT OR PAE HF PAF NOTES: 1. ...

Page 22

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 WCLK LD WEN Figure 14. Parallel Loading of Programmable Flag Registers (IDT Standard and FWFT Modes) RCLK LD REN ...

Page 23

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 CLKH t CLKL WCLK t t ENH ENS WEN (2) n words in FIFO PAE , (3) n+1 words in FIFO t (4) SKEW2 RCLK 1 REN ...

Page 24

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 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

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 DEPTH EXPANSION CONFIGURATION (FWFT MODE ONLY) The IDT72V255LA can easily be adapted to applications requiring depths greater than 8,192 and 16,384 for the IDT72V265LA with an 18-bit bus ...

Page 26

IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™ 8,192 x 18, 16,384 x 18 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 ...

Page 27

VOLT CMOS SuperSync FIFO 8,192 x 18 16,384 x 18 DIFFERENCES BETWEEN THE IDT72V255LA/72V265LA AND IDT72V255L/72V265L IDT has improved the performance of the IDT72V255/72V265 SuperSync™ FIFOs. The new versions are designated by the “LA” mark. The LA part is ...

Related keywords