74HC238 1-of-8-Line Decoder/Demultiplexer PDIP-16

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74HC238 1-of-8-Line Decoder/ Demultiplexer PDIP-16 The 74HC238 is a high-speed CMOS 3-to-8 line decoder and demultiplexer integrated circuit in a 16-pin PDIP package designed to decode three binary address inputs into one of eight mutually exclusive outputs. It includes multiple enable inputs to control output activation, permitting cascading and expansion for larger decode ranges. When enabled, the decoder asserts a single output corresponding to the binary input combination while holding all others inactive, simplifying address and data selection functions in digital systems. With CMOS technology, it offers low power consumption, wide voltage range operation, and balanced propagation delays suitable for general logic decoding, memory selection, and data routing in embedded and digital electronics. Features 3-to-8 line decoder/demultiplexer converts three inputs to eight outputs. Three enable inputs for flexible control and cascading. Outputs are mutually exclusive and active based on address inputs. Standard CMOS logic with low power dissipation and noise immunity. Wide supply voltage range typical for 74HC series. Through-hole PDIP-16 package for easy PCB mounting. PINOUT PIN NO. NAME I/O (1) DESCRIPTION 1 A0 I Address select 0 2 A1 I Address select 1 3 A2 I Address select 2 4 G0 I Output strobe 0, active low 5 G1 I Output strobe 1, active low 6 G2 I Output strobe 2 7 Y7 O Output 7 8 GND — Ground 9 Y6 O Output 6 10 Y5 O Output 5 11 Y4 O Output 4 12 Y3 O Output 3 13 Y2 O Output 2 14 Y1 O Output 1 15 Y0 O Output 0 16 VCC — Positive supply (1) Signal Types: I = Input, O = Output, I/O = Input or Output. Specifications Parameter Value Device Type 3-to-8 line decoder/demultiplexer Logic Family CMOS (74HC series) Address Inputs 3 Outputs 8 mutually exclusive Enable Inputs 3 (two active low, one active high) Package PDIP-16 Supply Voltage Range Typically 2 V to 6 V Mounting Type Through-hole Operating Temp Range –55 °C to +125 °C Propagation Delay Balanced, typical low ns range Applications Address decoding for memory and digital circuits. Data routing and selection logic in microprocessor systems. Demultiplexing signal lines in digital designs. Embedded system control and logic distribution. Logic expansion and bus interfacing in electronics prototyping. Package Contents 1x 74HC238 1-of-8-Line Decoder/Demultiplexer PDIP-16. Documents Datasheet CD74HC238E CAD Files Download