SN74HC245PW

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The SN74HC245PW is a logic buffer driver and is included in the logic buffer family of complementary-metal-oxide-semiconductor (CMOS) digital ICs. It is produced by Texas Instruments (TI). The SN74HC245PW is a nonvolatile bi-directional transceiver which contains a single 8-bit noninverting buffer, or latch, to store data and provide buffering of the data within its circuit.

This SN74HC245PW chip uses input logic levels compatible with the TTL logic family. Its inbuilt logic levels provide buffering of the data line, which makes it an ideal solution for communication protocols. Its well-controlled switching characteristics enable orderly data flow and reduce noise mixing problems that are usually encountered with TTL logic. It is also compatible with the open-collector CMOS families like the 74LS245 and 74HCT245.

The SN74HC245PW is particularly useful in applications requiring high-speed signal switching and signal buffering. Its buffering capability helps reduce electromagnetic interference (EMI) caused by signal reflections and switching delays, thereby improving the signal integrity and acceptance. Performance of the SN74HC245PW is optimized for the use of high frequency (up to 30MHz) digital logic circuits. The package includes 20-pin SOT-223 and SOIC-20 configurations.

The SN74HC245PW uses two independent power supplies, an operating supply voltage ranging from 2.0 V to 6.0 V and a disable voltage up to 20V. The device has an enable pin, E1 and E2, which controls the logic level output. When the enable pin is low, the output logic is in the low state, and when it is high, the output is in the high state. The Enable pins can also be used to control the direction of the buffer.

The SN74HC245PW chip has a fast switching speed, low power consumption and a guaranteed high reliability. It uses the CMOS technology, which helps in producing low static power consumption, suitable for low power applications. It also ensures low operating temperature, high noise immunity and long-term reliability.

The SN74HC245PW is an ideal device for use in high-speed logic buffers and drivers, as well as for signal buffering in digital-logic systems. Its CMOS technology ensures high-speed tracking, low power consumption and high noise immunity. Its DSP-like configurations are well-suited for low-power logic systems, like those used in cellular communication, where low power consumption and low noise requirements must be met. It can operate in temperature ranging from –40°C to 85°C.

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