Parameters |
Factory Lead Time |
1 Week |
Lifecycle Status |
ACTIVE (Last Updated: 5 days ago) |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
16-SOIC (0.209, 5.30mm Width) |
Number of Pins |
16 |
Weight |
200.686274mg |
Operating Temperature |
0°C~70°C |
Packaging |
Tape & Reel (TR) |
Series |
74ALS |
JESD-609 Code |
e4 |
Pbfree Code |
yes |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
16 |
ECCN Code |
EAR99 |
Type |
Multiplexer |
Terminal Finish |
Nickel/Palladium/Gold (Ni/Pd/Au) |
Packing Method |
TR |
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 |
Base Part Number |
74ALS257 |
Pin Count |
16 |
Number of Outputs |
1 |
Operating Supply Voltage |
5V |
Circuit |
4 x 2:1 |
Power Supplies |
5V |
Number of Channels |
4 |
Load Capacitance |
50pF |
Number of Bits |
2 |
Propagation Delay |
12 ns |
Family |
ALS |
Number of Inputs |
8 |
Output Characteristics |
3-STATE |
Current - Output High, Low |
2.6mA 24mA |
Supply Type |
Single |
Bandwidth |
75MHz |
Output Polarity |
TRUE |
Voltage Supply Source |
Single Supply |
Independent Circuits |
1 |
Height |
2mm |
Length |
10.3mm |
Width |
5.3mm |
Thickness |
1.95mm |
Radiation Hardening |
No |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
SN74ALS257ANSR Overview
Due to the lack of space on the board, digital switch is provided in the 16-SOIC (0.209, 5.30mm Width).It is packaged in the way of Tape & Reel (TR).In terms of mounting, digital switch ic uses the Surface Mount method .The analog IC in the multiplexers is identified as Multiplexer.By keeping the operating temperature at 0°C~70°C, turn signal switch will not be affected by external factors.The turn signal switch is designed for use with a 4.5V~5.5V supply voltage, which gives it a lot of flexibility.Since they are members of the 74ALS series, they can be used in a wide variety of applications.Its basic configuration includes terminations in the 16 range.There is a base part number of 74ALS257 which can also be used in order to locate the logic switch that are related to this item.For multiplexer's system, 5V voltage is supplied.This turn signal switch has 16 component pins.A conductor terminates at GULL WING.There is a type of supply Single that is employed in this case.A total of 16 pins are configured on this board.As you can see, it is mounted in the direction of Surface Mount.The ALS family includes the logic switch.Signal multiplexer provides 2 bits.In order for 5V to operate normally, a power supply is provided.As part of the operation of this turn signal switch, there are 1 outputs.Using a supply voltage of 5V can result in reliable performance of the multiplexers.It has 8 inputs.The switches package is packaged in accordance with TR.A total of 4 channels are used for transmission in the turn signal switch's circuit.
SN74ALS257ANSR Features
Supplied in the 16-SOIC (0.209, 5.30mm Width) package
Adopting a supply type of Single
Power supplies of 5V
Operating with the supply voltage of 5V
SN74ALS257ANSR Applications
There are a lot of Texas Instruments SN74ALS257ANSR Signal Switches / Multiplexers / Decoders applications.
- Arithmetic Logic Units
- Electronically controlled engine system
- High-performance memory systems
- LVDS
- Enabling different functions units in microprocessor instruction decoding
- Code conversion
- Audio transmission
- Encrypted communications system
- Control unit of Central Processing unit (CPU)
- CNC machines