IDT7200L IDT [Integrated Device Technology], IDT7200L Datasheet

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IDT7200L

Manufacturer Part Number
IDT7200L
Description
CMOS ASYNCHRONOUS FIFO 256 x 9, 512 x 9, 1,024 x 9
Manufacturer
IDT [Integrated Device Technology]
Datasheet

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The IDT logo is a trademark of Integrated Device Technology, Inc.
MILITARY, INDUSTRIAL AND COMMERCIAL TEMPERATURE RANGES
FEATURES:
• First-In/First-Out dual-port memory
• 256 x 9 organization (IDT7200)
• 512 x 9 organization (IDT7201)
• 1,024 x 9 organization (IDT7202)
• Low power consumption
• Ultra high speed—12ns access time
• Asynchronous and simultaneous read and write
• Fully expandable by both word depth and/or bit width
• Pin and functionally compatible with 720X family
• Status Flags: Empty, Half-Full, Full
• Auto-retransmit capability
• High-performance CEMOS
• Military product compliant to MIL-STD-883, Class B
• Standard Military Drawing #5962-87531, 5962-89666,
• Industrial temperature range (–40 C to +85 C) is
FUNCTIONAL BLOCK DIAGRAM
1997 Integrated Device Technology, Inc.
Integrated Device Technology, Inc.
— Active: 770mW (max.)
—Power-down: 2.75mW (max.)
5962-89863 and 5962-89536 are listed on this function
available (plastic packages only)
W
XI
R
For latest information contact IDT's web site at www.idt.com or fax-on-demand at 408-492-8391.
technology
CONTROL
CONTROL
WRITE
READ
CMOS ASYNCHRONOUS FIFO
256 x 9, 512 x 9, 1,024 x 9
EXPANSION
LOGIC
LOGIC
FLAG
POINTER
WRITE
THREE-
STATE
BUFFERS
DATA OUTPUTS
DESCRIPTION:
and empty data on a first-in/first-out basis. The devices use
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.
use of ring pointers, with no address information required to
load and unload data. Data is toggled in and out of the devices
through the use of the Write (
control and parity bits at the user’s option. This feature is
especially useful in data communications applications where
it is necessary to use a parity bit for transmission/reception
error checking. It also features a Retransmit (
that allows for reset of the read pointer to its initial position
when
beginning of data. A Half-Full Flag is available in the single
device mode and width expansion modes.
technology. They are designed for those applications requir-
ing asynchronous and simultaneous read/writes in multiproc-
essing and rate buffer applications. Military grade product is
manufactured in compliance with the latest revision of MIL-
STD-883, Class B.
DATA INPUTS
The IDT7200/7201/7202 are dual-port memories that load
The reads and writes are internally sequential through the
The devices utilize a 9-bit wide data array to allow for
These FIFOs are fabricated using IDT’s high-speed CMOS
(D –D
1,024 x 9
(Q –Q
ARRAY
256 x 9
512 x 9
RAM
0
RT
0
is pulsed low to allow for retransmission from the
8
8
EF
XO
)
FF
)
/
HF
POINTER
READ
RESET
LOGIC
FL
RS
/
RT
W
) and Read (
2679 drw 01
SEPTEMBER 1997
R
IDT7201LA
IDT7202LA
) pins.
IDT7200L
RT
) capability
DSC-2679/7
1

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IDT7200L Summary of contents

Page 1

... THREE- STATE BUFFERS DATA OUTPUTS (Q –Q READ CONTROL FLAG LOGIC EXPANSION LOGIC W ) and Read ( RT is pulsed low to allow for retransmission from the ) 8 READ POINTER RESET LOGIC 2679 drw 01 SEPTEMBER 1997 IDT7200L IDT7201LA IDT7202LA R ) pins capability DSC-2679/7 1 ...

Page 2

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO 256 x 9, 512 x 9 and 1,024 x 9 PIN CONFIGURATIONS ...

Page 3

... IDT7200L IDT7201LA IDT7202LA Military t = 50, 65, 80, 120 ns A Typ. Max. Min. Typ. — 1 –10 — — 10 –10 — — — 2.4 — — ...

Page 4

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO 256 x 9, 512 x 9 and 1,024 ELECTRICAL CHARACTERISTICS (Commercial 10 +70 C; Industrial Symbol Parameter t Shift Frequency S t ...

Page 5

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO 256 x 9, 512 x 9 and 1,024 ELECTRICAL CHARACTERISTICS (Commercial 10 +70 C; Industrial Symbol Parameter t Shift Frequency S t ...

Page 6

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO 256 x 9, 512 x 9 and 1,024 OUTPUT PIN 680 or equivalent circuit Figure 1. Output Load * Includes scope and jig capacitances. SIGNAL DESCRIPTIONS INPUTS: DATA IN (D – D ...

Page 7

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO 256 x 9, 512 x 9 and 1,024 x 9 pointer and read pointer is less than or equal to one half of the total memory of the device. The Half-Full Flag ( reset by using ...

Page 8

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO 256 x 9, 512 x 9 and 1,024 x 9 LAST READ IGNORED REF DATA OUT VALID Figure ...

Page 9

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO 256 x 9, 512 x 9 and 1,024 HALF-FULL OR LESS HF WRITE TO LAST PHYSICAL LOCATION XOL XIS WRITE TO FIRST PHYSICAL W ...

Page 10

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO 256 x 9, 512 x 9 and 1,024 x 9 USAGE MODES: Width Expansion Word width may be increased simply by connecting the corresponding input control signals of multiple devices. Sta tus flags ...

Page 11

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO 256 x 9, 512 x 9 and 1,024 x 9 TABLE I—RESET AND RETRANSMIT Single Device Configuration/Width Expansion Mode RS RS Mode Reset 0 Retransmit 1 Read/Write 1 NOTE: 1. Pointer will increment if flag is ...

Page 12

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO 256 x 9, 512 x 9 and 1,024 x 9 IDT7200/ IDT7201A/ IDT7202A EXPANSION D – NOTES: 1. For depth expsansion block see section on Depth Expansion and Figure ...

Page 13

IDT7200/7201A/7202A CMOS ASYNCHRONOUS FIFO 256 x 9, 512 x 9 and 1,024 DATA IN DATA OUT ORDERING INFORMATION IDT XXXX X XXX Device Type Power Speed Package NOTES: 1. Industrial temperature range is available for ...

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