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IDT72T18105L4-4BB Datasheet(PDF) 1 Page - Integrated Device Technology |
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IDT72T18105L4-4BB Datasheet(HTML) 1 Page - Integrated Device Technology |
1 / 55 page 1 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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