DALLAS (May 28, 1996) -- With the industry's first single-chip voltage translator from Texas Instruments, designers of PCs, notebooks, workstations, and networking and telecommunication equipment can use both 5V and low-power 3.3V parts in the same system without slowing down the performance of the system or consuming valuable board space. Since 5V devices are usually less expensive than their 3.3V counterparts, developers are able to bring to market the most cost effective system by using both 3.3V and 5V parts when appropriate. When this occurs, a voltage translator is needed.
TI's new CBTD3384 is based on very fast cross bar technology and
has an integrated diode for voltage translation. Previous to the
CBTD3384, voltage shifting required at least three discrete devices,
a switch, an external diode and a resistor. Because of its low
resistance and simple switching mechanism, the CBTD3384 has a
minimal propagation delay of just 250 picoseconds. The CBTD3384
offers bi-directional voltage translation between 5V TTL and 3.3V
LVTTL devices, or uni-directional shifting from 5V CMOS chips
to 3.3V LVTTL devices. The CBTD3384 is organized as two five-bit
switches, providing 10 bits of high-speed TTL-compatible bus switching.
The CBTD3384 is available now from TI and its authorized distributors.
Packaged in 24-pin plastic small-outline, shrink small-outline
and thin shrink small-outline carriers, the suggested resale pricing
in quantities of 1,000 is $0.90 each.
Reader Inquiry: 1-800-477-8924, ext. 5300
Please refer to Profile # SCD04
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