SNJ54ALS157AJ Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
SNJ54ALS157AJ is a quadruple 2-to-1 data selector/multiplexer by Texas Instruments in the ALS logic family, providing true (non-inverted) data output in a 16-pin ceramic DIP package rated for military temperature range. Key specs: 4 independent 2-input multiplexers, common select input, 4mA output sink current. Available in stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54ALS157AJ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $11.4563(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quadruple 2-to-1 non-inverting data selector/multiplexer with common select for all four sections
- ALS bipolar logic family with fast switching speed and TTL-compatible signal levels
- Active-low strobe input disables all outputs simultaneously for bus isolation
- Military-grade 16-pin ceramic DIP (CDIP) package for -55°C to +125°C operation
- Selects from two 4-bit data words with a single SELECT input pin
Applications
The SNJ54ALS157AJ is used in military and high-reliability digital systems for data bus multiplexing, parallel data selection, and signal routing in address decoders and memory controllers. Its quadruple 2-to-1 architecture is ideal for selecting between two 4-bit data paths in ruggedized computing, avionics signal processing, and defense electronics where ceramic packaging provides long-term environmental resistance.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | ALS |
| JESD-30 Code | R-GDIP-T16 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | MULTIPLEXER |
| Max I(ol) | 0.004A |
| Number of Bits | 2 |
| Number of Functions | 4 |
| Number of Inputs | 2 |
| Number of Outputs | 1 |
| Output Polarity | TRUE |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 11mA |
| Prop. Delay@Nom-Sup | 14ns |
| Propagation Delay (tpd) | 20ns |
| Qualification Status | Not Qualified |
| Screening Level | MIL-PRF-38535 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | TTL |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SNJ54ALS157AJ:
Multiplexer, ALS Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDIP16
Frequently Asked Questions
What does the SNJ54ALS157AJ do and how is it controlled?
The SNJ54ALS157AJ is a quadruple 2-to-1 data multiplexer that selects between two groups of four data inputs (A or B) and routes the selected data to four outputs. A common SELECT input controls all four multiplexers simultaneously, while a common active-low STROBE input forces all outputs low when asserted, allowing output bus isolation or gating.
How does the SNJ54ALS157AJ differ from the SNJ54ALS158J?
Both the SNJ54ALS157AJ and SNJ54ALS158J are quadruple 2-to-1 multiplexers from Texas Instruments, but they differ in output polarity. The ALS157 (SNJ54ALS157AJ) provides true (non-inverted) outputs, while the ALS158 (SNJ54ALS158J) provides inverted outputs. The ALS158 inversion minimizes propagation delay time in certain circuit configurations where inverted logic is downstream.
What temperature range and package does the SNJ54ALS157AJ support?
The SNJ54ALS157AJ is housed in a 16-pin ceramic dual in-line package (CDIP) with JESD-30 code R-GDIP-T16, rated for the military temperature range of -55°C to +125°C. The ceramic package provides superior hermeticity and thermal performance compared to plastic packages, making it suitable for defense and aerospace applications requiring long-term reliability.
Is the SNJ54ALS157AJ still in active production?
The SNJ54ALS157AJ carries a YTEOL (Years To End of Life) value of 15, indicating it is expected to remain in active production for approximately 15 more years. It is RoHS compliant (Pbfree Code: Yes), and Texas Instruments continues to support this military-grade device for long-lifecycle defense and industrial programs requiring sustained availability.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $17.6250 | $17.63 |
| 4+ | $13.2188 | $52.88 |
| 20+ | $11.4563 | $229.13 |
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