Parameters |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
20-SOIC (0.295, 7.50mm Width) |
Number of Pins |
20 |
Operating Temperature |
0°C~70°C TA |
Packaging |
Tube |
Series |
74ALS |
Pbfree Code |
yes |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
20 |
Additional Feature |
WITH DIRECTION CONTROL |
Subcategory |
Bus Driver/Transceivers |
Technology |
TTL |
Voltage - Supply |
4.5V~5.5V |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
NOT SPECIFIED |
Number of Functions |
1 |
Supply Voltage |
5V |
Time@Peak Reflow Temperature-Max (s) |
NOT SPECIFIED |
Base Part Number |
74ALS638 |
Pin Count |
20 |
Qualification Status |
Not Qualified |
Output Type |
Open Collector, Push-Pull |
Number of Elements |
1 |
Polarity |
Inverting |
Supply Voltage-Max (Vsup) |
5.5V |
Power Supplies |
5V |
Supply Voltage-Min (Vsup) |
4.5V |
Load Capacitance |
50pF |
Number of Ports |
2 |
Propagation Delay |
30 ns |
Family |
ALS |
Logic Function |
Inverting, Transceiver |
Output Characteristics |
OPEN-COLLECTOR/3-STATE |
Current - Output High, Low |
- 24mA; 15mA 24mA |
Logic Type |
Transceiver, Inverting |
Number of Bits per Element |
8 |
Control Type |
COMMON CONTROL |
Count Direction |
BIDIRECTIONAL |
Translation |
N/A |
Height Seated (Max) |
2.65mm |
Width |
7.5mm |
RoHS Status |
ROHS3 Compliant |
SN74ALS638A-1DW Overview
Logical driver uses a neat 20-SOIC (0.295, 7.50mm Width) package. Tube external packaging. Available in Surface Mount. Voltage buffer adopts Transceiver, Inverting logic prototype. Buffer IC is fed with a voltage of 4.5V~5.5V. Qualified to operate within 0°C~70°C TA. The high and low logic state output current of logical driver is - 24mA; 15mA 24mA. Logical driver can deal with Open Collector, Push-Pull output (s). All of the 1 elements are put into use. Digital buffer is one of the 74ALS series devices. 20 terminations with different functions. Buffer IC reuqires a supply voltage of 5V. This electronic component belongs to the ALS family. 20 pins are set with the electric part. Buffer IC is suitable for Surface Mount applications. Logical driver has 20 pins. Enhanced with 2 ports. The bus transceiver employs 8 bits for each element. You can search "74ALS638" for other related electrical components. Specifically, digital transciever is a kind of Bus Driver/Transceivers. The digital buffer starts up under COMMON CONTROL control technology. It is recommended to use a 5V power supply. To supply the device, a minimum voltage of 4.5V is a must. Logical driver features WITH DIRECTION CONTROL to better serve the need.
SN74ALS638A-1DW Features
Bus Driver/Transceivers
WITH DIRECTION CONTROL
SN74ALS638A-1DW Applications
There are a lot of Texas Instruments SN74ALS638A-1DW Buffers & Transceivers applications.
- Wireless modems
- Wireless transmission
- Telecom and datacom networking applications
- Wireless interactive experience
- Relays
- IPTV front end
- interconnection between computers
- IP cameras
- Fast Ethernet
- Cable network front end