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| Part Number | CD74AC257M | CD74AC257SM | CD74ACT257M | CD74AC157M | CD74AC251M | CD74AC253M | CD74AC257E |
|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Harris Corporation | Harris Corporation | Texas Instruments | Harris Corporation | Texas Instruments | Harris Corporation |
| Product Status | Active | Active | Obsolete | Active | Obsolete | Active | Obsolete |
| Type | Multiplexer | Multiplexer | Multiplexer | Multiplexer | Multiplexer | Multiplexer | Multiplexer |
| Circuit | 4 x 2:1 | 4 x 2:1 | 4 x 2:1 | 4 x 2:1 | 1 x 8:1 | 2 x 4:1 | 4 x 2:1 |
| Independent Circuits | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Current - Output High, Low | 24mA, 24mA | 24mA, 24mA | 75mA, 75mA | 24mA, 24mA | 75mA, 75mA | 75mA, 75mA | 75mA, 75mA |
| Voltage Supply Source | Single Supply | Single Supply | Single Supply | Single Supply | Single Supply | Single Supply | Single Supply |
| Voltage - Supply | 1.5V ~ 5.5V | 1.5V ~ 5.5V | 4.5V ~ 5.5V | 1.5V ~ 5.5V | 1.5V ~ 5.5V | 1.5V ~ 5.5V | 1.5V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Through Hole |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SSOP (0.209", 5.30mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-DIP (0.300", 7.62mm) |
| Supplier Device Package | 16-SOIC | 16-SSOP | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-PDIP |
