74HCS138
Applications
Nexperia's demultiplexers are available in multiple logic families with 1, 2, 3 and 4 input lines and 2, 4, 8 and 16 output lines reducing the bit width of interface busses. They can be used as decoders by activating one of several mutually-exclusive output lines, based on the digital code present at the binary-weighted inputs. A typical use of decoders is in memory addressing in automotive applications such as display clusters, global positioning systems and keyless entry systems; allowing several memory devices to share a common data bus by ensuring that only one memory device is enabled at a time.
Digital decoders / demultiplexers are available in standard SO, TSSOP and leadless DQFN packages for PCB space saving. Nexperia's digital decoders / demultiplexers are fully specified from -40 °C to 125 °C.
Features and benefits
- Multiple input enable for easy expansion or independent controls
- Integrated input latch to store the address of decoder lines
- Ideal for memory chip select decoding
- Asynchronous and synchronous load options
- Overvoltage tolerant input options
- Inverting and non-inverting output options
- 3-stage outputs
- High frequency
- Can be cascaded
Applications
- Selection of memory banks and peripherals
- I/O expansion
Parametrics
| Type number | VCC (V) | Logic switching levels | Power dissipation considerations | Tamb (°C) | Package name |
|---|---|---|---|---|---|
| 74HCS138PW | 2.0 - 6.0 | CMOS | low | -40~125 | TSSOP16 |
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74HCS138PW | 74HCS138PWJ (935692375118) |
Active | S138 |
TSSOP16 (SOT403-1) |
SOT403-1 |
SSOP-TSSOP-VSO-WAVE
|
SOT403-1_118 |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HCS138PW | 74HCS138PWJ | 74HCS138PW |
|
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Documentation (6)
| File name | Title | Type | Date |
|---|---|---|---|
| AN90063 | Questions about package outline drawings | Application note | 2025-10-22 |
| SOT403-1 | 3D model for products with SOT403-1 package | Design support | 2020-01-22 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| TSSOP16_SOT403-1_mk | plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body | Marcom graphics | 2017-01-28 |
| SOT403-1 | plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm body | Package information | 2023-11-08 |
| SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
Support
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Models
| File name | Title | Type | Date |
|---|---|---|---|
| SOT403-1 | 3D model for products with SOT403-1 package | Design support | 2020-01-22 |
Ordering, pricing & availability
Sample
As a Nexperia customer you can order samples via our sales organization.
If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples. Check out the list of official distributors.