The 74HC138; 74HCT138 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7). The device features three enable inputs (E1, E2 and E3). Every output will be HIGH unless E1 and E2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion to a 1-of-32 (5 to 32 lines) decoder with just four '138 ICs and one inverter. The '138 can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Features and benefits
IC DECODER/DEMUX 1 X 3:8 16SO
74HCT CMOS, SMD, 74HCT138, SOIC16; Logic Family / Base Number:74HCT138; Logic Type:Decoder / Demultiplexer; No. of Outputs:8Outputs; Logic Case Style:SOIC; No. of Pins:16Pins; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Logic RoHS Compliant: Yes
| Nexperia B.V. | ODG (Origin Data Global) | Newark, An Avnet Company | |
|---|---|---|---|
| Product Category | Logic Decoders and Demultiplexers | Logic Decoders and Demultiplexers | Logic Decoders and Demultiplexers |
| Product Number | 74HCT138D,653 | 74HCT138D,653 | 26M7747 |
| Product Name | 3-to-8 line decoder/demultiplexer; inverting | Signal Switches, Multiplexers, Decoders | 74Hct Cmos, Smd, 74Hct138, Soic16; Logic Family / Base Number Nexperia |
| Function | Decoder/Demultiplexer | Decoder | Decoder |
| Input Lines | 3 | 1 | |
| Output Lines | 8 | 8; Other; 8Outputs | |
| Supply Voltage | 5V; 4.5 - 5.5 | 4.5V ~ 5.5V | 5.5V |
| Features | ESD Protection |