Parameters |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
16-SOIC (0.154, 3.90mm Width) |
Number of Pins |
16 |
Weight |
141.690917mg |
Operating Temperature |
0°C~70°C |
Packaging |
Tape & Reel (TR) |
Series |
74AS |
JESD-609 Code |
e4 |
Pbfree Code |
yes |
Part Status |
Discontinued |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
16 |
ECCN Code |
EAR99 |
Type |
Decoder/Demultiplexer |
Terminal Finish |
Nickel/Palladium/Gold (Ni/Pd/Au) |
Subcategory |
Decoder/Drivers |
Technology |
TTL |
Voltage - Supply |
4.5V~5.5V |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
260 |
Number of Functions |
1 |
Supply Voltage |
5V |
Base Part Number |
74AS138 |
Pin Count |
16 |
Operating Supply Voltage |
5V |
Circuit |
1 x 3:8 |
Polarity |
Inverting |
Power Supplies |
5V |
Load Capacitance |
50pF |
Propagation Delay |
10 ns |
Family |
AS |
Logic Function |
Decoder, Demultiplexer |
Current - Output High, Low |
400μA 8mA |
Supply Type |
Single |
Max I(ol) |
0.02 A |
Power Supply Current-Max (ICC) |
20mA |
Number of Input Lines |
3 |
Voltage Supply Source |
Single Supply |
Independent Circuits |
1 |
Number of Output Lines |
8 |
Input Conditioning |
STANDARD |
Length |
9.9mm |
Radiation Hardening |
No |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Contains Lead |
SN74AS138DR Overview
Due to the lack of space on the board, digital switch is provided in the 16-SOIC (0.154, 3.90mm Width).The package is packaged in the manner of Tape & Reel (TR).digital switch ic uses the method of Surface Mount for mounting.In the multiplexers, the analog IC is indicated by Decoder/Demultiplexer.Turn signal switch will not be susceptible to the external factors when the operating temperature is kept at 0°C~70°C.With a supply voltage of 4.5V~5.5V, designers have greater flexibility of digital controlled switch.As a member of 74AS series, the multiplexers can be used for a wide range of applications.As part of its basic configuration, 16 terminations are designed as a part of it.There is a base part number 74AS138 that can be used to locate signal switch's related components as well.For multiplexer's system, 5V voltage is supplied.Currently, this turn signal switch has a total of 16 component pins.It is the end of conductors that is represented by GULL WING.As a type of supply, Single is employed.There are 16 pins on it.The multiplexer ic is mounted in the direction of Surface Mount.I would like to refer to the logic switch as a member of the AS family.There is a power supply provided for the mux switch's normal operation of 5V.Decoder/Drivers is the classification for this the digital switch ic.When a supply voltage of 5V is used, reliable performance of the multiplexers can be achieved.On the multiplexers, 3 input lines are provided for accepting voltage levels.A signal source consists of 8 output lines.
SN74AS138DR Features
Supplied in the 16-SOIC (0.154, 3.90mm Width) package
Adopting a supply type of Single
Power supplies of 5V
Operating with the supply voltage of 5V
3 input lines
8 output lines
SN74AS138DR Applications
There are a lot of Texas Instruments SN74AS138DR Signal Switches / Multiplexers / Decoders applications.
- Frequency multiplexing system
- To select different devices in microprocessor input
- Control unit of Central Processing unit (CPU)
- A/D converters
- Make full adder
- Injectors
- To select different task for memory in microprocessor memory systems
- Analog, digital or video signal switching
- Automatic health monitoring systems
- Seven segment displays