| Part Number | CD74AC139MG4 | CD74ACT139MG4 | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | Logic - Signal Switches, Multiplexers, Decoders | Logic - Signal Switches, Multiplexers, Decoders | 
|   |   | |
| Product Status | Discontinued at Digi-Key | Discontinued at Digi-Key | 
| Type | Decoder/Demultiplexer | Decoder/Demultiplexer | 
| Circuit | 1 x 2:4 | 1 x 2:4 | 
| Independent Circuits | 2 | 2 | 
| Current - Output High, Low | 24mA, 24mA | 24mA, 24mA | 
| Voltage Supply Source | Single Supply | Single Supply | 
| Voltage - Supply | 1.5V ~ 5.5V | 4.5V ~ 5.5V | 
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 
| Supplier Device Package | 16-SOIC | 16-SOIC |