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IDT72V85L20PAGI

Description
1K X 9 BI-DIRECTIONAL FIFO, 15 ns, PDSO56
Categorystorage   
File Size131KB,12 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
Download Datasheet Parametric View All

IDT72V85L20PAGI Overview

1K X 9 BI-DIRECTIONAL FIFO, 15 ns, PDSO56

IDT72V85L20PAGI Parametric

Parameter NameAttribute value
maximum clock frequency40 MHz
Number of functions1
Number of terminals56
Minimum operating temperature0.0 Cel
Maximum operating temperature70 Cel
Rated supply voltage3.3 V
Minimum supply/operating voltage3 V
Maximum supply/operating voltage3.6 V
Processing package descriptionGREEN, TSSOP-56
each_compliYes
EU RoHS regulationsYes
stateActive
sub_categoryFIFOs
ccess_time_max15 ns
cycle25 ns
jesd_30_codeR-PDSO-G56
jesd_609_codee3
storage density9216 bi
Memory IC typeOTHER FIFO
memory width9
moisture_sensitivity_level1
Number of digits1024 words
Number of digits1K
operating modeASYNCHRONOUS
organize1KX9
Output enableYES
Packaging MaterialsPLASTIC/EPOXY
ckage_codeTSSOP
ckage_equivalence_codeTSSOP56,.3,20
packaging shapeRECTANGULAR
Package SizeSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
serial parallelPARALLEL
eak_reflow_temperature__cel_260
wer_supplies__v_3.3
qualification_statusCOMMERCIAL
seated_height_max1.2 mm
standby_current_max0.0050 Am
Maximum supply voltage0.1000 Am
surface mountYES
CraftsmanshipCMOS
Temperature levelCOMMERCIAL
terminal coatingMATTE TIN
Terminal formGULL WING
Terminal spacing0.5000 mm
Terminal locationDUAL
ime_peak_reflow_temperature_max__s_30
length14 mm
width6.1 mm
dditional_featureRETRANSMIT
3.3 Volt CMOS DUAL ASYNCHRONOUS FIFO
DUAL 512 x 9, DUAL 1,024 x 9
DUAL 2,048 x 9, DUAL 4,096 X 9
DUAL 8,192 X 9
IDT72V81
IDT72V82
IDT72V83
IDT72V84
IDT72V85
FEATURES:
DESCRIPTION:
The IDT72V81/72V82/72V83/72V84/72V85 are dual-FIFO memories that
load and empty data on a first-in/first-out basis. These devices are functional and
compatible to two IDT72V01/72V02/72V03/72V04/72V05 FIFOs in a single
package with all associated control, data, and flag lines assigned to separate
pins. 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.
The reads and writes are internally sequential through the 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 (W) and Read
(R) pins.
The devices utilize a 9-bit wide data array to allow for 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 (RT) capability that allows for reset
of the read pointer to its initial position when
RT
is pulsed low to allow for
retransmission from the beginning of data. A Half-Full Flag is available in the
single device mode and width expansion modes.
These FIFOs are fabricated using IDT’s high-speed CMOS technology.
They are designed for those applications requiring asynchronous and simul-
taneous read/writes in multiprocessing and rate buffer applications.
The IDT72V81 is equivalent to two IDT72V01 - 512 x 9 FIFOs
The IDT72V82 is equivalent to two IDT72V02 - 1,024 x 9 FIFOs
The IDT72V83 is equivalent to two IDT72V03 - 2,048 x 9 FIFOs
The IDT72V84 is equivalent to two IDT72V04 - 4,096 x 9 FIFOs
The IDT72V85 is equivalent to two IDT72V05 - 8,192 x 9 FIFOs
Low power consumption
— Active: 330 mW (max.)
— Power-down: 18 mW (max.)
Ultra high speed—15 ns access time
Asynchronous and simultaneous read and write
Offers optimal combination of data capacity, small foot print
and functional flexibility
Ideal for bidirectional, width expansion, depth expansion, bus-
matching, and data sorting applications
Status Flags: Empty, Half-Full, Full
Auto-retransmit capability
High-performance CEMOS™ technology
Space-saving TSSOP package
Industrial temperature range (–40°C to +85°C) is available
°
°
Green parts available, see ordering information
FUNCTIONAL BLOCK DIAGRAM
DATA INPUTS
(DA
0
-DA
8
)
WA
WRITE
CONTROL
WRITE
POINTER
THREE-
STATE
BUFFERS
RSA
WB
WRITE
CONTROL
WRITE
POINTER
DATA INPUTS
(DB
0
-DB
8
)
RSB
RAM
ARRAY A
512 x 9
1,024 x 9
2,048 x 9
4,096 x 9
8,192 x 9
READ
POINTER
RAM
ARRAY A
512 x 9
1,024 x 9
2,048 x 9
4,096 x 9
8,192 x 9
READ
POINTER
THREE-
STATE
BUFFERS
RA
READ
CONTROL
FLAG
LOGIC
EXPANSION
LOGIC
RESET
LOGIC
READ
CONTROL
FLAG
LOGIC
EXPANSION
LOGIC
RESET
LOGIC
XIA
XOA/HFA
FFA
EFA
DATA
OUTPUTS
(QA
0
-QA
8
)
FLA/RTA
RB
XIB
XOB/HFB
FFB
EFB
DATA
OUTPUTS
(QB
0
-QB
8
)
FLB/RTB
3966 drw 01
IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. The AsyncFIFO is a trademark of Integrated Device Technology, Inc.
COMMERICAL TEMPERATURE RANGE
JULY 2006
DSC-3966/2
1
2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
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