11/1/2004 - Texas Instruments Incorporated (TI) (NYSE: TXN) has strengthened its translation portfolio with the introduction of four new dual-supply voltage level translators, the AVC1T45, AVC2T45, AVC16T245, and the AVC32T245. These translators enable communication between incompatible IOs. All four devices allow for bi-directional level translation between the 1.2-V, 1.5-V, 1.8-V, 2.5-V and 3.3-V nodes. Any combination of these voltage levels can be used; making these devices extremely flexible in mixed signal environments. The low-voltage operation is ideal for today´s mixed-mode applications as core processors move to lower operating voltages.(See www.ti.com/trans.)
As the proliferation of voltage nodes continues in the industry, so too do the offerings of dual-supply voltage level translators from Texas Instruments. Level translators are essential when a lower level voltage output is trying to communicate with a higher voltage input (1.8-V output and 3.3-V input, for example). By using a dual-supply level translator, not only is input compatibility achieved but also total system power is held in check. The opposite condition, where a higher voltage output is sending signals to a lower voltage input (3.3-V output and 1.8-V input, for example), using a dual-supply level-translator provides further IO compatibility and eliminates the need for high voltage tolerance at the input; thus assists the board designer for worry-free communication between ICs.
Ideal for translation requirements in portable handheld applications, the 1-bit AVC1T45 and 2-bit AVC2T45 help to simplify board routing by allowing a single or dual translator function to be placed on the board where needed rather than routing through a higher bit-width device. The AVC16T245 and AVC32T245 are improved versions of TI's current 16- and 32-bit dual-supply translation functions. These devices provide lower power consumption (AVC16T245 = 25uA vs. AVCA164245 = 40uA). The bus hold option on the devices eliminates the need for external pullup/pulldown resistors. Full IBIS model support is also provided.
Availability, Packaging and Pricing
The SN74AVC1T45 and the SN74AVC2T45, as well as the bus hold versions, SN74AVCH1T45 and the SN74AVCH2T45, are available in the space saving NanoStarTM and NanoFreeTM chip scale packaging. Devices are currently released and available to sample. Estimated resale for the 1T45 devices starts at $0.24 per 1KU and estimated resale of the 2T45 devices start at $0.35 per 1KU.
The SN74AVC16T245, as well as the bus hold version SN74AVCH16T245, is available in the 56-ball VFBGA package. The device is currently released and available to sample. Estimated resale for the SN74AVC16T245GQL/ZQL starts at $3.39 per 1KU.
The SN74AVC32T245, as well as the bus hold version SN74AVCH32T245, is available in the 96-ball LFBGA package. Devices are currently released and available to sample. Estimated resale for the SN74AVC32T245GKE/ZKE starts at $3.15 per 1KU.
Texas Instruments (TI) is an industry leader in the movement to Lead (Pb)-Free. TI defines "Lead (Pb)-Free" or "Pb-Free" to mean RoHS compatible, including a lead concentration that does not exceed 0.1% of total product weight, and, if designed to be soldered, suitable for use in specified lead-free soldering processes.
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