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Logic / Multiplexer/Demultiplexers / SN74LS257BN
Datasheets
SN74LS257BN by:
onsemi
Freescale Semiconductor
Motorola Mobility LLC
Motorola Semiconductor Products
onsemi
Rochester Electronics LLC
Texas Instruments
Not Found

LS SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDIP16, PLASTIC, DIP-16

Part Details for SN74LS257BN by onsemi

Results Overview of SN74LS257BN by onsemi

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

SN74LS257BN Information

SN74LS257BN by onsemi is a Multiplexer/Demultiplexer.
Multiplexer/Demultiplexers are under the broader part category of Logic Components.

Digital logic governs the behavior of signals in electronic circuits, enabling complex decisions based on simple binary inputs (yes/no). Logic components perform operations from these signals. Read more about Logic Components on our Logic part category page.

Available Datasheets

Part # Manufacturer Description Datasheet
SN74LS257BN Texas Instruments Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs 16-PDIP 0 to 70
SN74LS257BNSR Texas Instruments Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs 16-SO 0 to 70

Price & Stock for SN74LS257BN

Part # Distributor Description Stock Price Buy
Onlinecomponents.com Multiplexer 1-Element Bipolar 3-ST 8-IN 16-Pin PDIP Box 298 In Stock
  • 60 $1.8400
  • 100 $1.6900
$1.6900 / $1.8400 Buy Now
DISTI # 82771690
Verical Multiplexer 1-Element Bipolar 3-ST 8-IN 16-Pin PDIP Box Min Qty: 60 Package Multiple: 60 Date Code: 1406 Americas - 240
  • 60 $2.3920
  • 60 $2.5740
  • 60 $2.7950
  • 120 $2.1970
$2.1970 / $2.7950 Buy Now
Rochester Electronics 74LS257B - Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs RoHS: Compliant Status: Active Min Qty: 1 895
  • 1 $0.4694
  • 25 $0.4600
  • 100 $0.4412
  • 500 $0.4225
  • 1,000 $0.3990
$0.3990 / $0.4694 Buy Now
Master Electronics Multiplexer 1-Element Bipolar 3-ST 8-IN 16-Pin PDIP Box 298 In Stock
  • 60 $1.8400
  • 100 $1.6900
$1.6900 / $1.8400 Buy Now

Part Details for SN74LS257BN

SN74LS257BN CAD Models

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SN74LS257BN Part Data Attributes

Parametric Data
SN74LS257BN onsemi
Buy Now Datasheet
Compare Parts:
SN74LS257BN onsemi LS SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDIP16, PLASTIC, DIP-16
Select a part to compare:
Rohs Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer ONSEMI
Part Package Code DIP
Pin Count 16
Reach Compliance Code not_compliant
HTS Code 8542.39.00.01
Family LS
JESD-30 Code R-PDIP-T16
JESD-609 Code e0
Length 19.175 mm
Logic IC Type MULTIPLEXER
Max I(ol) 0.024 A
Number of Functions 4
Number of Inputs 2
Number of Outputs 1
Number of Terminals 16
Operating Temperature-Max 70 °C
Operating Temperature-Min
Output Characteristics 3-STATE
Output Polarity TRUE
Package Body Material PLASTIC/EPOXY
Package Code DIP
Package Equivalence Code DIP16,.3
Package Shape RECTANGULAR
Package Style IN-LINE
Peak Reflow Temperature (Cel) 235
Power Supply Current-Max (ICC) 19 mA
Prop. Delay@Nom-Sup 21 ns
Propagation Delay (tpd) 15 ns
Qualification Status Not Qualified
Seated Height-Max 4.44 mm
Supply Voltage-Max (Vsup) 5.25 V
Supply Voltage-Min (Vsup) 4.75 V
Supply Voltage-Nom (Vsup) 5 V
Surface Mount NO
Technology TTL
Temperature Grade COMMERCIAL
Terminal Finish TIN LEAD
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position DUAL
Width 7.62 mm

Alternate Parts for SN74LS257BN

This table gives cross-reference parts and alternative options found for SN74LS257BN. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of SN74LS257BN, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
SN74LS257BNE4 Texas Instruments Check for Price Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs 16-PDIP 0 to 70 SN74LS257BN vs SN74LS257BNE4
74LS257APC Fairchild Semiconductor Corporation Check for Price Multiplexer, 4-Func, 2 Line Input, TTL, PDIP16 SN74LS257BN vs 74LS257APC
Part Number Manufacturer Composite Price Description Compare
SN74LS257BN Texas Instruments $0.6166 Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs 16-PDIP 0 to 70 SN74LS257BN vs SN74LS257BN

SN74LS257BN Related Parts

SN74LS257BN Frequently Asked Questions (FAQ)

  • The maximum clock frequency of the SN74LS257BN is typically around 30-40 MHz, but it can vary depending on the specific application and operating conditions. It's recommended to check the device's timing specifications and perform simulations to ensure reliable operation at the desired frequency.

  • To ensure proper operation, the SN74LS257BN should be powered with a stable 5V supply, and decoupling capacitors (e.g., 0.1uF and 10uF) should be placed close to the device to filter out noise and voltage spikes. Additionally, the power supply should be able to provide sufficient current to drive the device's output loads.

  • The propagation delay of the SN74LS257BN is typically around 10-15 ns, which means that there is a delay between the input signal and the output signal. This delay should be taken into account when designing the system, especially in high-speed applications or when using the device in a clocked system.

  • Yes, the SN74LS257BN can be used as a demultiplexer by connecting the output of the device to multiple destinations and using the select inputs to route the signal to the desired output. However, the device's output should be buffered or terminated properly to prevent signal degradation or reflections.

  • The enable input (E) is used to enable or disable the device's output. When E is low, the output is disabled and is in a high-impedance state. When E is high, the output is enabled and the device operates normally. It's essential to ensure that the enable input is properly driven and terminated to prevent unwanted output states.