Parameters |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
16-SOIC (0.154, 3.90mm Width) |
Number of Pins |
16 |
Operating Temperature |
0°C~70°C |
Packaging |
Tube |
Series |
74ALS |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Type |
Multiplexer |
Voltage - Supply |
4.5V~5.5V |
Base Part Number |
74ALS257 |
Operating Supply Voltage |
5V |
Circuit |
4 x 2:1 |
Polarity |
Non-Inverting |
Number of Bits |
4 |
Throw Configuration |
DPST |
Propagation Delay |
12 ns |
Quiescent Current |
9mA |
Logic Function |
Mux |
Number of Inputs |
8 |
Current - Output High, Low |
2.6mA 24mA |
Supply Type |
Single |
Voltage Supply Source |
Single Supply |
Independent Circuits |
1 |
Number of Output Lines |
2 |
RoHS Status |
RoHS Compliant |
Lead Free |
Lead Free |
DM74ALS257M Overview
Due to the lack of space on the board, digital switch is provided in the 16-SOIC (0.154, 3.90mm Width).Tube is the packaging method.For mounting, digital switch ic uses the method Surface Mount.The analog IC in the multiplexers is identified as Multiplexer.If the operating temperature is maintained at 0°C~70°C, turn signal switch will not be susceptible to external factors.When digital controlled switch operates at 4.5V~5.5V, designers have superior flexibility.These multiplexers are members of the 74ALS series, which provide extensive application potential.In addition, it also has a base part number of 74ALS257, which can be used to find related parts.This supply type employs Single.It is configured with 16 pins.It is mounted in the way of Surface Mount.There are 4 bits in signal multiplexer.It consumes 9mA current of multiplexer ic since it is not affected by external factors.Providing a supply voltage of 5V can provide reliable performance of the multiplexers.It has 8 inputs.A signal source has 2 output lines.
DM74ALS257M Features
Supplied in the 16-SOIC (0.154, 3.90mm Width) package
Adopting a supply type of Single
Operating with the supply voltage of 5V
2 output lines
DM74ALS257M Applications
There are a lot of ON Semiconductor DM74ALS257M Signal Switches / Multiplexers / Decoders applications.
- Frequency multiplexing system
- Microprocessor input/output systems
- Computer memory
- To select different devices in microprocessor output
- High-performance memory-decoding applications
- Logic circuits
- Solenoid cooling fan
- Data-routing applications
- Video transmission
- Code converters