SNJ54AHC125J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The SNJ54AHC125J is a military-grade 4-channel bus buffer from Texas Instruments with 3-state outputs, operating from 2 V to 5.5 V. Each channel has an independent active-low output enable, supporting up to 50 mA sink current. Housed in a ceramic 14-pin DIP package for mil-spec reliability in harsh environments.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54AHC125J Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $10.2700(MOQ 19)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4-channel bus buffer with independent active-low output enable per channel
- 3-state outputs allowing shared bus connections without contention
- Wide supply range: 2 V to 5.5 V covering 3.3 V and 5 V digital logic systems
- 50 mA output sink current for driving heavy bus loads
- Ceramic DIP-14 package meeting military-grade thermal and environmental requirements
Applications
The SNJ54AHC125J is used in military, aerospace, and high-reliability embedded systems for bus expansion, signal buffering, and address/data bus isolation. Its ceramic packaging and AHC logic family characteristics make it suitable for avionics data bus interfaces, radar signal processing boards, and military ground vehicle electronics requiring extended temperature performance.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | AHC/VHC/H/U/V |
| JESD-30 Code | R-GDIP-T14 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.05A |
| Number of Functions | 4 |
| Number of Ports | 2 |
| Output Polarity | TRUE |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Power Supply Current-Max (ICC) | 0.04mA |
| Prop. Delay@Nom-Sup | 13ns |
| Propagation Delay (tpd) | 13ns |
| Qualification Status | Not Qualified |
| Screening Level | MIL-PRF-38535 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| 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 SNJ54AHC125J:
D Flip-Flop, AHC/VHC/H/U/V Series, 2-Func, Positive Edge Triggered, Complementary Output, CMOS, CDIP14
D Flip-Flop, AHCT/VHCT/VT Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, CMOS, CDIP14
Frequently Asked Questions
What are the output enable characteristics of the SNJ54AHC125J?
Each of the four buffer channels has an independent active-low output enable pin. When the enable is high, the output enters a high-impedance (3-state) mode, effectively disconnecting it from the bus. This allows multiple devices to share a common bus without causing logic contention.
How much output current can the SNJ54AHC125J sink?
The SNJ54AHC125J can sink up to 50 mA per output (I(ol) max), which is substantially higher than standard HC-family logic. This high drive capability is critical for driving bus lines with multiple loads, backplane trace capacitance, or LEDs and other higher-current peripheral interfaces.
Why is the SNJ54AHC125J packaged in a ceramic DIP rather than plastic?
The ceramic dual-in-line package (CDIP) provides hermetic sealing and superior resistance to moisture, temperature extremes, and mechanical shock compared to plastic packages. It is the required package type for military and aerospace applications where components must meet MIL-PRF-38535 or equivalent reliability standards.
What supply voltage range does the SNJ54AHC125J support?
The device operates from 2 V to 5.5 V, making it compatible with both 3.3 V and 5 V logic systems. This wide range allows it to interface across different voltage domains commonly found in mixed-logic military embedded computing and avionics backplane architectures.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $16.0500 | $304.95 |
| 500+ | $11.5600 | $5780.00 |
| 1000+ | $10.9100 | $10910.00 |
| 10000+ | $10.2700 | $102700.00 |
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