Product category:
Communications ICs (Wired)
News Release from: Texas Instruments (April 2001-March 2006) | Subject: SN74LV4320A
Edited by the Electronicstalk Editorial
Team on 10 October 2005
Transceiver simplifies CompactFlash
interfaces
A new transceiver specifically designed for the processor-to-CompactFlash interface integrates all required component circuitry into a single chip offered in a 114-pin BGA package.
New from Texas Instruments is the SN74LV4320A, CompactFlash interface transceiver Specifically designed for the processor-to-CompactFlash interface, this new transceiver integrates all required component circuitry into a single chip offered in a 114-pin BGA package (16 x 5.5mm)
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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The device is an ideal solution to current methods of interfacing core processors to compact Flash memory cards that are complex and costly.
As consumer electronic equipment continues to reduce in sise, and the continued convergence of applications accelerates, designers will be required to explore new methods while dealing with declining board real estate.
TI's new SN74LV4320A provides such a new method of interfacing the core processor with a CompactFlash card.
Current interface methods are cumbersome in both sise and cost.
Typically consisting of two 16bit transceivers in addition to card detect logic and several pull-up resistors, this solution may have a high risk of floating inputs on the card-side which could cause undesirable power consumption issues.
The highly integrated SN74LV4320A eliminates such issues by providing a low power, space saving solution.
The SN74LV4320 has level translation circuitry that supports both 3.3 and 5V memory cards.
The device also supports low power operation by incorporating current off and shutdown pins.
Robust ESD protection (+/-8kV) on card-side pins is crucial in preventing damage as CompactFlash cards are inserted and removed from their sockets.
Pin assignments of the LV4320A are optimised to enable a flow-through pinout from the processor to the CompactFlash card.
The SN74LV4320AGKFR/ZKFR is currently available in the 114-pin ball grid array (BGA) package.
The TI orderable part number SN74LV4320AZKFR is the RoHS compliant version of the device.
Budgetary pricing for the SN74LV4320AGKFR is set at $3.85 in quantities of 1000.
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