Home Switches & multiplexers Digital multiplexers & encoders
Home
Switches & multiplexers
Digital multiplexers & encoders

SN74HC257

ACTIVE

Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs

Order now
Data sheet

SN74HC257

ACTIVE
Data sheet Order now

Product details

Technology family HC Function Digital Multiplexer Configuration 2:1 Number of channels 4 Operating temperature range (°C) -40 to 85 Rating Catalog
Technology family HC Function Digital Multiplexer Configuration 2:1 Number of channels 4 Operating temperature range (°C) -40 to 85 Rating Catalog
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm) SOIC (D) 16 59.4 mm² (9.9 mm × 6 mm) SOP (NS) 16 79.56 mm² (10.2 mm × 7.8 mm) PDIP (N) 16 181.42 mm² (19.3 mm × 9.4 mm)
  • Wide operating voltage range of 2 V to 6 V
  • High-current inverting outputs can drive up to 15 LSTTL loads
  • Low power consumption, 80-µA max ICC
  • ’HC257 typical tpd = 9 ns
  • ’HC258 typical tpd = 12 ns
  • ±6-mA output drive at 5 V
  • Low input current of 1 µA max
  • Provides bus interface from multiple sources in high-performance systems
  • Wide operating voltage range of 2 V to 6 V
  • High-current inverting outputs can drive up to 15 LSTTL loads
  • Low power consumption, 80-µA max ICC
  • ’HC257 typical tpd = 9 ns
  • ’HC258 typical tpd = 12 ns
  • ±6-mA output drive at 5 V
  • Low input current of 1 µA max
  • Provides bus interface from multiple sources in high-performance systems

The SNx4HC257 and ’258 contain four data selectors/ multiplexers to select one of two data sources. All channels are controlled by the same address select (A/B) input, and active-low strobe (G) input. A high level at the G terminal forces all outputs into the high-impedance state. The ’257 has non-inverted outputs and the ’258 has inverted outputs.

The SNx4HC257 and ’258 contain four data selectors/ multiplexers to select one of two data sources. All channels are controlled by the same address select (A/B) input, and active-low strobe (G) input. A high level at the G terminal forces all outputs into the high-impedance state. The ’257 has non-inverted outputs and the ’258 has inverted outputs.
filter Find other Digital multiplexers & encoders
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device.
SN74LVC258A ACTIVE Quadruple 2-line to 1-line data selector and multiplexer with inverted tri-state outputs Voltage range 1.65V to 3.6V, average propagation delay 5.5ns, average drive strength 24mA
CD74AC257 ACTIVE Quad 2-Input Non-Inverting Multiplexers with 3-State Outputs Voltage range 2V to 6V, average propagation delay 7ns, average drive strength 24mA
SN74LVC158A ACTIVE Quadruple 2-line to 1-line data selector/multiplexer with inverted outputs Voltage range 1.65V to 3.6V, average propagation delay 5.5ns, average drive strength 24mA
Same functionality with different pin-out to the compared device.
SN74AHC257 ACTIVE Quadruple 2-line to 1-line data selector/multiplexer with 3-state outputs Voltage range 2V to 5.5V, average propagation delay 12ns, average drive strength 9mA

Technical documentation

No results found. Please clear your search and try again.
View all 1
Top documentation Type Title Format options Date
* Data sheet SN54HC257, SN54HC258, SN74HC257, SN74HC258 datasheet (Rev. C) Dec 1, 1982

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

14-24-LOGIC-EVM — Logic product generic evaluation module for 14-pin to 24-pin D, DB, DGV, DW, DYY, NS and PW packages

The 14-24-LOGIC-EVM evaluation module (EVM) is designed to support any logic device that is in a 14-pin to 24-pin D, DW, DB, NS, PW, DYY or DGV package,

User guide: PDF | HTML
Supported products & hardware
In stock
Limit:
??asset.out-of-stock-ti_en_US??
Not available
Package Pins CAD symbols, footprints & 3D models
TSSOP (PW) 16 Ultra Librarian
SOIC (D) 16 Ultra Librarian
SOP (NS) 16 Ultra Librarian
PDIP (N) 16 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos