Register once, drag and drop ECAD models into your CAD tool and speed up your design.
Click here for more information74LVC257ADB
Quad 2-input multiplexer with 5 V tolerant inputs/outputs; 3-state
The 74LVC257A is a quad 2-input multiplexer; 3-state. Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of these devices as translators in mixed 3.3 V and 5 V environments.
Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.
This device is fully specified for partial power down applications using IOFF. The IOFF circuitry disables the output, preventing the potentially damaging backflow current through the device when it is powered down.
Alternatives
Features and benefits
Overvoltage tolerant inputs to 5.5 V
Wide supply voltage range from 1.2 V to 3.6 V
CMOS low-power consumption
Direct interface with TTL levels
Output drive capability 50 Ω transmission lines at 85 °C
IOFF circuitry provides partial Power-down mode operation
Complies with JEDEC standard:
JESD8-7A (1.65 V to 1.95 V)
JESD8-5A (2.3 V to 2.7 V)
JESD8-C/JESD36 (2.7 V to 3.6 V)
ESD protection:
HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Specified from -40 °C to +85 °C and -40 °C to +125 °C
PCB Symbol, Footprint and 3D Model
| Model Name | Description |
|---|---|
|
|
Package
All type numbers in the table below are discontinued.
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74LVC257ADB | 74LVC257ADB,112 (935260679112) |
Obsolete | no package information | ||||
| 74LVC257ADB,118 (935260679118) |
Obsolete | ||||||
Environmental information
All type numbers in the table below are discontinued.
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74LVC257ADB | 74LVC257ADB,112 | 74LVC257ADB |
|
|
| 74LVC257ADB | 74LVC257ADB,118 | 74LVC257ADB |
|
|
Documentation (5)
| File name | Title | Type | Date |
|---|---|---|---|
| 74LVC257A | Quad 2-input multiplexer with 5 V tolerant inputs/outputs; 3-state | Data sheet | 2024-01-24 |
| AN11009 | Pin FMEA for LVC family | Application note | 2019-01-09 |
| AN263 | Power considerations when using CMOS and BiCMOS logic devices | Application note | 2023-02-07 |
| lvc257a | lvc257a IBIS model | IBIS model | 2013-04-08 |
| lvc | lvc Spice model | SPICE model | 2013-05-07 |
Support
If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.
PCB Symbol, Footprint and 3D Model
| Model Name | Description |
|---|---|
|
|
How does it work?
The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.