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IDT72T18105L4-4BB Datasheet(PDF) 1 Page - Integrated Device Technology

Part # IDT72T18105L4-4BB
Description  2.5 VOLT HIGH-SPEED TeraSync FIFO 18-BIT/9-BIT CONFIGURATIONS
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT72T18105L4-4BB Datasheet(HTML) 1 Page - Integrated Device Technology

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SEPTEMBER 2003
DSC-5909/16
 2003 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
2.5 VOLT HIGH-SPEED TeraSync™ FIFO
18-BIT/9-BIT CONFIGURATIONS
2,048 x 18/4,096 x 9, 4,096 x 18/8,192 x 9, 8,192 x 18/16,384 x 9,
16,384 x 18/32,768 x 9, 32,768 x 18/65,536 x 9, 65,536 x 18/131,072 x 9,
131,072 x 18/262,144 x 9, 262,144 x 18/524,288 x 9, 524,288 x 18/1,048,576 x 9
IDT72T1845, IDT72T1855
IDT72T1865, IDT72T1875
IDT72T1885, IDT72T1895
IDT72T18105, IDT72T18115
IDT72T18125
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. TeraSync FIFO is a trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
FEATURES:
••••• Choose among the following memory organizations:
IDT72T1845
2,048 x 18/4,096 x 9
IDT72T1855
4,096 x 18/8,192 x 9
IDT72T1865
8,192 x 18/16,384 x 9
IDT72T1875
16,384 x 18/32,768 x 9
IDT72T1885
32,768 x 18/65,536 x 9
IDT72T1895
65,536 x 18/131,072 x 9
IDT72T18105
131,072 x 18/262,144 x 9
IDT72T18115
262,144 x 18/524,288 x 9
IDT72T18125
524,288 x 18/1,048,576 x 9
••••• Up to 225 MHz Operation of Clocks
••••• User selectable HSTL/LVTTL Input and/or Output
••••• Read Enable & Read Clock Echo outputs aid high speed operation
••••• User selectable Asynchronous read and/or write port timing
••••• 2.5V LVTTL or 1.8V, 1.5V HSTL Port Selectable Input/Ouput voltage
••••• 3.3V Input tolerant
••••• Mark & Retransmit, resets read pointer to user marked position
••••• Write Chip Select (WCS) input enables/disables Write operations
••••• Read Chip Select (RCS) synchronous to RCLK
••••• Programmable Almost-Empty and Almost-Full flags, each flag can
default to one of eight preselected offsets
••••• Program programmable flags by either serial or parallel means
••••• Selectable synchronous/asynchronous timing modes for Almost-
Empty and Almost-Full flags
••••• Separate SCLK input for Serial programming of flag offsets
••••• User selectable input and output port bus-sizing
- x9 in to x9 out
- x9 in to x18 out
- x18 in to x9 out
- x18 in to x18 out
••••• Big-Endian/Little-Endian user selectable byte representation
••••• Auto power down minimizes standby power consumption
••••• Master Reset clears entire FIFO
••••• Partial Reset clears data, but retains programmable settings
••••• Empty, Full and Half-Full flags signal FIFO status
••••• 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
••••• JTAG port, provided for Boundary Scan function
••••• Available in 144-pin (13mm x 13mm) or 240-pin (19mm x 19mm)
PlasticBall Grid Array (PBGA)
••••• Easily expandable in depth and width
••••• Independent Read and Write Clocks (permit reading and writing
simultaneously)
••••• High-performance submicron CMOS technology
••••• Industrial temperature range (–40
°°°°°C to +85°°°°°C) is available
INPUT REGISTER
OUTPUT REGISTER
RAM ARRAY
2,048 x 18 or 4,096 x 9
4,096 x 18 or 8,192 x 9
8,192 x 18 or 16,384 x 9
16,384 x 18 or 32,768 x 9
32,768 x 18 or 65,536 x 9
65,536 x 18 or 131,072 x 9
131,072 x 18 or 262,144 x 9
262,144 x 18 or 524,288 x 9
524,288 x 18 or 1,048,576 x 9
FLAG
LOGIC
FF/IR
PAF
EF/OR
PAE
HF
READ POINTER
READ
CONTROL
LOGIC
WRITE CONTROL
LOGIC
WRITE POINTER
RESET
LOGIC
WEN WCLK/WR
D0 -Dn (x18 or x9)
LD
MRS
REN
RCLK/RD
OE
Q0 -Qn (x18 or x9)
OFFSET REGISTER
PRS
FWFT/SI
SEN
RT
5909 drw01
BUS
CONFIGURATION
CONTROL
LOGIC
BE
OW
IP
PFM
FSEL0
FSEL1
IW
MARK
SCLK
RCS
JTAG CONTROL
(BOUNDARY SCAN)
TCK
TMS
TDO
TDI
TRST
ASYR
WCS
ERCLK
EREN
HSTL I/0
CONTROL
Vref
WHSTL
RHSTL
ASYW
SHSTL
FUNCTIONAL BLOCK DIAGRAM


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