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IDT72104 Datasheet

  • IDT72104

  • CMOS PARALLEL-SERIAL FIFO

  • 293.59KB

  • IDT

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CMOS PARALLEL-SERIAL FIFO
2048 x 9, 4096 x 9
Integrated Device Technology, Inc.
IDT72103
IDT72104
FEATURES:
鈥?35ns parallel port access time, 45ns cycle time
鈥?50MHz serial input/output frequency
鈥?Serial-to-parallel, parallel-to-serial, serial-to-serial, and
parallel-to-parallel operations
鈥?Expandable in both depth and width with no external
components
鈥?Flexishift鈩?鈥?Sets programmable serial word width
from 4 bits to any width with no external components
鈥?Multiple flags: Full, Almost-Full (Full-1/8),Full-Minus-
One, Empty, Almost-Empty (Empty + 1/8), Empty-Plus
One, and Half-Full
鈥?Asynchronous and simultaneous read or write
operations
鈥?Dual-Port, zero fall-through time architecture
鈥?Retransmit capability in single-device mode
鈥?Packaged in 44-pin PLCC
鈥?Industrial temperature range (-40
o
C to +85
o
C) is avail-
able, tested to military electrical specifications
APPLICATIONS:
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
High-speed data acquisition systems
Local area network (LAN) buffer
High-speed modem data buffer
Remote telemetry data buffer
FAX raster video data buffer
Laser printer engine data buffer
High-speed parallel bus-to-bus communications
Magnetic media controllers
Serial link buffer
DESCRIPTION:
The IDT72103/72104 are high-speed Parallel-Serial FlFOs
to be used with high-performance systems for functions such
as serial communications, laser printer engine control and
local area networks.
A serial input, a serial output and two 9-bit parallel ports
make four modes of data transfer possible: serial-to-parallel,
parallel-to-serial, serial-to-serial, and parallel-to-parallel. The
IDT72103/72104 are expandable in both depth and width for
all of these operational configurations.
FUNCTIONAL BLOCK DIAGRAM
SERIAL
INPUT
SI
SIX
SICP
DATA INPUTS (D
0
-D
8
)
SERIAL
INPUT
CIRCUITRY
FLAG
LOGIC
SERIAL/
PARALLEL
CONTROL
RAM ARRAY
2048 x 9
4096 x 9
SI
/PI
SO
/PO
W
XI
XO
FL
/
RT
FF
FF-1
EF+1
EF
AEF
HF
R
RS
WRITE
POINTER
READ
POINTER
DEPTH
EXPANSION
LOGIC
RESET
LOGIC
OE
DATA OUTPUTS (Q
0
-Q
8
)
The IDT logo is a registered trademark of Integrated Device Technology,Inc.
SERIAL
OUTPUT
CIRCUITRY
SERIAL
OUTPUT
SO
SOX
SOCP
2753 drw 01
COMMERCIAL TEMPERATURE RANGES
漏1996
Integrated Device Technology, Inc.
For latest information contact IDT's web site at www.idt.com or fax-on-demand at 408-492-8391.
DECEMBER 1996
DSC-2753/8
5.37
1

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