Quad 2-Input Multiplexer with 3-STATE Outputs
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General Description
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The AC/ACT257 is a quad 2-input multiplexer with 3-STATE outputs. Four bits of data from two sources can be selected using a Common Data Select input. The four outputs present the selected data in true (noninverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the common Output Enable (OE#) input, allowing the outputs to interface directly with bus-oriented systems.
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Features
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ICC and IOZ reduced by 50%
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Multiplexer expansion by tying outputs together
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Noninverting 3-STATE outputs
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Outputs source/sink 24 mA
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ACT257 has TTL-compatible inputs
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Datasheet
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Product Status/Pricing/Packaging
| 74AC257MTC | Full Production | RoHS Compliant | $0.201 | TSSOP | 16 | RAIL
| | Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K
Line 2: AC257
| | 74AC257MTCX | Full Production | RoHS Compliant | $0.201 | TSSOP | 16 | TAPE REEL
| | Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K
Line 2: AC257
| | 74AC257PC | Full Production | RoHS Compliant | $0.406 | DIP | 16 | RAIL
| | Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&4 (4-Digit Date Code)
&K
Line 2: 74AC257PC
| | 74AC257SC | Full Production | RoHS Compliant | $0.201 | SOIC | 16 | RAIL
| | Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K
Line 2: 74AC257
| | 74AC257SCX | Full Production | RoHS Compliant | $0.201 | SOIC | 16 | TAPE REEL
| | Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K
Line 2: 74AC257
| | 74AC257SJ | Lifetime Buy | RoHS Compliant | N/A | SOP | 16 | RAIL
| | Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K
Line 2: 74AC257
| | 74AC257SJX | Lifetime Buy | RoHS Compliant | N/A | SOP | 16 | TAPE REEL
| | Line 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K
Line 2: 74AC257
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* Fairchild 1,000 piece Budgetary Pricing
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| ** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples |
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Models
| TSSOP-16 | All | -40°C to 85°C | 4.5V to 5.5V | 2.1 | Aug 18, 1998 |
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Qualification Support
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Eco Status