IDT72T3645 Datasheet, PDF (1/57 Pages) Integrated Device Technology – 2.5 VOLT HIGH-SPEED TeraSyncTM FIFO 36-BIT CONFIGURATIONS

2.5 VOLT HIGH-SPEED TeraSync^TM FIFO 36-BIT CONFIGURATIONS
1,024 x 36, 2,048 x 36, 4,096 x 36,
8,192 x 36, 16,384 x 36, 32,768 x 36,
65,536 x 36, 131,072 x 36 and 262,144 x 36
IDT72T3645, IDT72T3655, IDT72T3665,
IDT72T3675, IDT72T3685, IDT72T3695,
IDT72T36105, IDT72T36115, IDT72T36125
FEATURES:
• Choose among the following memory organizations:
IDT72T3645  1,024 x 36
IDT72T3655  2,048 x 36
IDT72T3665  4,096 x 36
IDT72T3675  8,192 x 36
IDT72T3685  16,384 x 36
IDT72T3695  32,768 x 36
IDT72T36105  65,536 x 36
IDT72T36115  131,072 x 36
IDT72T36125  262,144 x 36
• Up to 225 MHz Operation of Clocks
• User selectable HSTL/LVTTL Input and/or Output
• 2.5V LVTTL or 1.8V, 1.5V HSTL Port Selectable Input/Ouput voltage
• 3.3V Input tolerant
• Read Enable & Read Clock Echo outputs aid high speed operation
• User selectable Asynchronous read and/or write port timing
• 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
- x36 in to x36 out
- x36 in to x18 out
- x36 in to x9 out
- x18 in to x36 out
- x9 in to x36 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 208-pin (17mm x 17mm) or 240-pin (19mm x 19mm)
Plastic Ball 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
FUNCTIONAL BLOCK DIAGRAM
WEN WCLK/WR
D0 -Dn (x36, x18 or x9)
LD SEN SCLK
WCS
INPUT REGISTER
OFFSET REGISTER
ASYW
BE
IP
WRITE CONTROL
LOGIC
WRITE POINTER
CONTROL
LOGIC
RAM ARRAY
1,024 x 36, 2,048 x 36
4,096 x 36, 8,192 x 36
16,384 x 36, 32,768 x 36
65,536 x 36, 131,072 x36
262,144 x 36
FLAG
LOGIC
READ POINTER
BM
IW
OW
MRS
PRS
BUS
CONFIGURATION
RESET
LOGIC
OUTPUT REGISTER
READ
CONTROL
LOGIC
TCK
TRST
TMS
TDO
TDI
Vref
WHSTL
RHSTL
SHSTL
JTAG CONTROL
(BOUNDARY SCAN)
HSTL I/0
CONTROL
OE
Q0 -Qn (x36, x18 or x9)
EREN
ERCLK
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. The TeraSync FIFO is a trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
1
 2003 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
FF/IR
PAF
EF/OR
PAE
HF
FWFT/SI
PFM
FSEL0
FSEL1
RT
MARK
ASYR
RCLK/RD
REN
RCS
5907 drw01
SEPTEMBER 2003
DSC-5907/17