CMOS ASYNCHRONOUS FIFO IDT7200L
256 x 9, 512 x 9 and 1,024 x 9 IDT7201LA
IDT7202LA
o o
Industrial temperature range (40 C to +85 C) is available
FEATURES:
(plastic packages only)
First-In/First-Out dual-port memory
Green parts available, see ordering information
256 x 9 organization (IDT7200)
512 x 9 organization (IDT7201)
DESCRIPTION:
1,024 x 9 organization (IDT7202)
The IDT7200/7201/7202 are dual-port memories that load and empty data
Low power consumption
on a first-in/first-out basis. The devices use Full and Empty flags to prevent data
Active: 440mW (max.)
overflow and underflow and expansion logic to allow for unlimited expansion
Power-down: 28mW (max.)
capability in both word size and depth.
Ultra high speed12ns access time
The reads and writes are internally sequential through the use of ring
Asynchronous and simultaneous read and write
pointers, with no address information required to load and unload data. Data
Fully expandable by both word depth and/or bit width
is toggled in and out of the devices through the use of the Write (W) and Read
720x family is pin and functionally compatible from 256 x 9 to 64k x 9
(R) pins.
Status Flags: Empty, Half-Full, Full
The devices utilize a 9-bit wide data array to allow for control and parity bits
Auto-retransmit capability
at the users option. This feature is especially useful in data communications
High-performance CEMOS technology
applications where it is necessary to use a parity bit for transmission/reception
Military product compliant to MIL-STD-883, Class B
error checking. It also features a Retransmit (RT) capability that allows for reset
Standard Military Drawing #5962-87531, 5962-89666, 5962-89863
of the read pointer to its initial position when RT is pulsed LOW to allow for
and 5962-89536 are listed on this function
retransmission from the beginning of data. A Half-Full Flag is available in the
Dual versions available in the TSSOP package. For more informa-
single device mode and width expansion modes.
tion, see IDT7280/7281/7282 data sheet
These FIFOs are fabricated using high-speed CMOS technology. They
IDT7280 = 2 x IDT7200
are designed for those applications requiring asynchronous and simultaneous
IDT7281 = 2 x IDT7201
read/writes in multiprocessing and rate buffer applications. Military grade
IDT7282 = 2 x IDT7202
product is manufactured in compliance with MIL-STD-883, Class B.
FUNCTIONAL BLOCK DIAGRAM
DATA INPUTS
(D0-D8)
WRITE
W
CONTROL
RAM
WRITE
READ
ARRAY
POINTER
POINTER
256 x 9
512 x 9
1,024 x 9
THREE-
STATE
RS
BUFFERS
DATA OUTPUTS
READ (Q0-Q8)
RESET
R
CONTROL
LOGIC
FLAG
EF
FL/RT
LOGIC
FF
EXPANSION
2679 drw 01
XO/HF
XI LOGIC
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc.
JUNE 2012
COMMERCIAL, INDUSTRIAL AND MILITARY TEMPERATURE RANGES
1
2012 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. DSC-2679/13IDT7201L/7201LA/7202LA CMOS ASYNCHRONOUS FIFO
COMMERCIAL, INDUSTRIAL AND MILITARY
256 x 9, 512 x 9 and 1,024 x 9 TEMPERATURE RANGES
PIN CONFIGURATIONS
INDEX
W
1 28 VCC
D8 2 27 D4
4 3 2 32 31 30
1
D3326 D5
D2 5 29 D6
D2425 D6
D1 6 28 D7
D1524 D7 D0 7 27 NC
XI 8 26 FL/RT
D0623 FL/RT
FF RS
9 25
XI RS
722
Q0 10 24 EF
FF821 EF
Q1 11 23 XO/HF
Q0920 XO/HF
NC 12 22 Q7
Q1 10 19 Q7
Q2 13 21 Q6
Q2 11 18 Q6
14 15 16 17 18 19 20
Q3 12 17 Q5
Q8 13 16 Q4
R
GND 14 15 2679 drw 02b
2679 drw 02a
Reference Order
Reference Order
Package Type Identifier Code
Package Type Identifier Code
(1)
(1)
LCC L32- 1 L
PLASTIC DIP P28-1 P
PLCC J32-1 J
PLASTIC THIN DIP P28-2 T P
(1)
CERDIP D28-1 D
TOP VIEW
THIN CERDIP D28-3 TD
SOIC SO28-3 SO
TOP VIEW
NOTE:
1. The 600-mil-wide DIP (P28-1 and D28-1) and LCC are not available for the IDT7200.
RECOMMENDED DC OPERATING
CONDITIONS
Symbol Parameter Min. Typ. Max. Unit
VCC Supply Voltage 4.5 5.0 5.5 V
ABSOLUTE MAXIMUM RATINGS
Commercial/Industrial/Military
Symbol Rating Coml & Ind'l Mil. Unit
GND Supply Voltage 0 0 0 V
VTERM Terminal Voltage 0.5 to +7.0 0.5 to +7.0 V
(1)
VIH Input High Voltage Com'l/Ind'l 2.0 V
with Respect
(1)
VIH Input High Voltage Military 2.2 V
to GND
(2)
VIL Input Low Voltage 0.8 V
TSTG Storage 55 to +125 65 to +155 C
Commercial/Industrial/Military
Temperature
TA Operating Temperature Commercial 0 70 C
IOUT DC Output 50 to +50 50 to +50 mA
TA Operating Temperature Industrial 40 85 C
Current
TA Operating Temperature Military 55 125 C
NOTE:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation of
NOTES:
the device at these or any other conditions above those indicated in the operational
1. For RT/RS/XI input, VIH = 2.6V (commercial).
sections of this specification is not implied. Exposure to absolute maximum rating
For RT/RS/XI input, VIH = 2.8V (military).
conditions for extended periods may affect reliability.
2. 1.5V undershoots are allowed for 10ns once per cycle.
2
D3
Q3
D8
Q8
GND
W
NC
NC
R
VCC
D4
Q4
D5
Q5