Parameters |
Mounting Type |
Surface Mount |
Package / Case |
16-SOIC (0.154, 3.90mm Width) |
Surface Mount |
YES |
Operating Temperature |
0°C~70°C |
Packaging |
Tube |
Series |
74ALS |
JESD-609 Code |
e3 |
Pbfree Code |
yes |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
16 |
Type |
Multiplexer |
Terminal Finish |
MATTE TIN |
Technology |
TTL |
Voltage - Supply |
4.5V~5.5V |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
260 |
Number of Functions |
4 |
Supply Voltage |
5V |
Time@Peak Reflow Temperature-Max (s) |
NOT SPECIFIED |
Pin Count |
16 |
Number of Outputs |
1 |
Qualification Status |
COMMERCIAL |
Circuit |
4 x 2:1 |
Supply Voltage-Max (Vsup) |
5.5V |
Supply Voltage-Min (Vsup) |
4.5V |
Family |
ALS |
Number of Inputs |
2 |
Output Characteristics |
3-STATE |
Current - Output High, Low |
2.6mA 24mA |
Output Polarity |
TRUE |
Voltage Supply Source |
Single Supply |
Independent Circuits |
1 |
Length |
9.9mm |
Width |
3.9mm |
RoHS Status |
ROHS3 Compliant |
DM74ALS257M Overview
The reason it is provided is that the board space can be saved by placing digital switch in the 16-SOIC (0.154, 3.90mm Width).The package is packaged in accordance with Tube.In terms of mounting, digital switch ic uses the method of Surface Mount.the multiplexers uses an analog IC Multiplexer.The operating temperature of 0°C~70°C will not be susceptible to external factors.Designers have greater flexibility when digital controlled switch operates at a 4.5V~5.5V supply voltage.With the 74ALS series, the multiplexers are suitable for a diverse range of applications.Among its basic features are 16 terminations.For multiplexer's system, a voltage of 5V is supplied.This turn signal switch has 16 component pins.GULL WING represents the end of conductors.The logic switch is a member of the family of ALS.To prevent unnecessary failures, it is recommended that the minimum supply voltage (Vsup) remain at 4.5V.It is advisable to keep the maximum supply voltage (Vsup) at 5.5V in order to prevent some unnecessary failures.The turn signal switch has 1 outputs.This multiplexer provides 2 inputs.
DM74ALS257M Features
Supplied in the 16-SOIC (0.154, 3.90mm Width) package
DM74ALS257M Applications
There are a lot of Rochester Electronics, LLC DM74ALS257M Signal Switches / Multiplexers / Decoders applications.
- Used to connect a single source to multiple destinations
- Video transmission
- Medium scale TV wall
- To select different devices in microprocessor output
- To select different task for memory in microprocessor memory systems
- A/D converters
- Automatic health monitoring systems
- Textile mills
- To select different devices in microprocessor input
- Implementing boolean functions with multiple variables