ON Semiconductor MC74HC238ADTR2G 3-to-8 Line Decoder/Demultiplexer

The MC74HC238ADTR2G is a high-performance integrated circuit manufactured by ON Semiconductor, designed to provide efficient decoding and demultiplexing capabilities in a variety of digital applications. This versatile chip is part of the HC family, which is well-known for its high noise immunity and low power consumption, making it suitable for use in battery-powered devices and other power-sensitive applications.

Constructed with silicon gate CMOS technology, the MC74HC238ADTR2G offers a robust solution for converting three binary input signals to eight mutually exclusive outputs. It operates as a 3-to-8 line decoder or a 1-to-8 line demultiplexer, depending on the state of the chip enable inputs. The device features three enable pins, two active-low (E1, E2) and one active-high (E3), which must be in the correct logical state for the device to operate. When enabled, the chip decodes the three binary input signals to activate one of the eight output lines, allowing for the selection of one out of eight output lines.

The outputs of this IC can drive up to 10 LSTTL loads, and the high current drive capability of the outputs (25mA) is a significant advantage in driving heavier loads. The MC74HC238ADTR2G functions optimally within a supply voltage range of 2V to 6V, accommodating a wide range of power requirements and ensuring compatibility with TTL logic levels.

ON Semiconductor packages the MC74HC238ADTR2G in a TSSOP-16 package, which offers a compact footprint for space-constrained applications while still providing excellent thermal performance and reliability. The device is also characterized for operation from -55°C to +125°C, ensuring it can withstand extreme environmental conditions and making it suitable for industrial and automotive applications.

Whether utilized in complex microprocessor systems, memory address decoding, or data routing applications, the MC74HC238ADTR2G from ON Semiconductor delivers the performance and flexibility needed for efficient and reliable digital logic operations.