MC74ACT257: Quad 2-Input Multiplexer with 3-State Output
The MC74AC257/74ACT257 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.
Features- Multiplexer Expansion by Tying Outputs Together
- Noninverting 3-State Outputs
- Outputs Source/Sink 24 mA
- ACT257 Has TTL Compatible Inputs
- These devices are available in Pb-free package(s). Specifications herein apply to both standard and Pb-free devices. Please see our website at www.onsemi.com for specific Pb-free orderable part numbers, or contact your local ON Semiconductor sales office or representative.
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Application Notes (1)
Package Drawings (1)
| Document Title | Document ID/Size | Revision |
|---|
| SOIC 16 LEAD | 751B-05 (38.2kB) | K |
Data Sheets (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| MC74ACT257DG | Active | Pb-free
Halide free | SOIC-16 | 751B-05 | 1 | Tube | 48 | $0.2667 |
| MC74ACT257DR2G | Active | Pb-free
Halide free | SOIC-16 | 751B-05 | 1 | Tape and Reel | 2500 | $0.2667 |
Specifications
| Product | Channels | VCC Min (V) | VCC Max (V) | tpd Max (ns) | IO Max (mA) |
|---|
| MC74ACT257DG | 4 | 4.5 | 5.5 | 10.5 | 24 |
| MC74ACT257DR2G | 4 | 4.5 | 5.5 | 10.5 | 24 |
