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7204L50P Datasheet, PDF (1/14 Pages) Integrated Device Technology – First-In/First-Out Dual-Port memory
CMOS ASYNCHRONOUS FIFO
2,048 x 9, 4,096 x 9
8,192 x 9, 16,384 x 9
32,768 x 9, 65,536 x 9
IDT7203
IDT7204
IDT7205
IDT7206
IDT7207
IDT7208
FEATURES:
• First-In/First-Out Dual-Port memory
• 2,048 x 9 organization (IDT7203)
• 4,096 x 9 organization (IDT7204)
• 8,192 x 9 organization (IDT7205)
• 16,384 x 9 organization (IDT7206)
• 32,768 x 9 organization (IDT7207)
• 65,636 x 9 organization (IDT7208)
• High-speed: 12ns access time
• Low power consumption
— Active: 660mW (max.)
— Power-down: 44mW (max.)
• Asynchronous and simultaneous read and write
• Fully expandable in both word depth and width
• Pin and functionally compatible with IDT720X family
• Status Flags: Empty, Half-Full, Full
• Retransmit capability
• High-performance CMOS technology
• Military product compliant to MIL-STD-883, Class B
• Standard Military Drawing for #5962-88669 (IDT7203), 5962-89567
(IDT7203), and 5962-89568 (IDT7204) are listed on this function
• Industrial temperature range (–40°C to +85°C) is available
(plastic packages only)
DESCRIPTION:
The IDT7203/7204/7205/7206/7207/7208 are dual-port memory buffers
with internal pointers that load and empty data on a first-in/first-out basis. The
device uses Full and Empty flags to prevent data overflow and underflow and
expansion logic to allow for unlimited expansion capability in both word size and
depth.
Data is toggled in and out of the device through the use of the Write (W) and
Read (R) pins.
The device's 9-bit width provides a bit for a control or parity at the user’s
option. It also features a Retransmit (RT) capability that allows the read pointer
to be reset to its initial position when RT is pulsed LOW. A Half-Full Flag is
available in the single device and width expansion modes.
These FIFOs are fabricated using IDT’s high-speed CMOS technology.
They are designed for applications requiring asynchronous and simultaneous
read/writes in multiprocessing, rate buffering and other applications.
Military grade product is manufactured in compliance with the latest revision
of MIL-STD-883, Class B.
FUNCTIONAL BLOCK DIAGRAM
W
WRITE
CONTROL
DATA INPUTS
(D0 -D8)
WRITE
POINTER
RAM ARRAY
2,048 x 9
4,096 x 9
8,192 x 9
16,384 x 9
32,768 x 9
65,536 x 9
READ
POINTER
R
READ
CONTROL
THREE-
STATE
BUFFERS
DATA OUTPUTS
(Q0 -Q8 )
FLAG
LOGIC
EF
FF
RS
RESET
LOGIC
FL/RT
EXPANSION
XI
LOGIC
XO/HF
2661 drw01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL, MILITARY AND
© 2001 Integrated Device Technology, Inc.
INDUSTRIAL
1
TEMPERATURE
RANGES
MAY 2001
DSC-2661/12