SNJ54LS181J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
SNJ54LS181J is a 4-bit arithmetic logic unit from Texas Instruments capable of 16 logic and arithmetic operations in a military-grade 24-pin CDIP package. Features internal carry and higher-order lookahead with 15 pF load capacitance. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54LS181J Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $22.1599(MOQ 10)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4-bit ALU supporting 16 distinct arithmetic and logic operations with internal carry lookahead for high-speed computation
- Military-grade 54-series qualification in hermetic 24-pin ceramic DIP package for high-reliability aerospace and defense applications
- LS-family Bipolar TTL logic with true output polarity and 8 mA sink current, compatible with standard LS TTL system designs
Applications
SNJ54LS181J is designed for high-reliability military and aerospace computing systems requiring a robust 4-bit arithmetic logic unit capable of performing 16 logic and arithmetic operations. Its internal carry lookahead capability makes it suitable for cascading multiple ALU units to build wider data paths in rugged embedded processors. The hermetic ceramic DIP-24 package and 54-series temperature rating make it appropriate for avionics, radar, and defense electronics operating in harsh environments.
Specifications
| YTEOL | 15 |
| Additional Feature | CAPABLE OF 16 LOGIC & ARITHMETIC OPERATIONS; INTERNAL CARRY AND HIGHER ORDER LOOKAHEAD |
| Family | LS |
| JESD-30 Code | R-GDIP-T24 |
| Load Capacitance (CL) | 15pF |
| Logic IC Type | ARITHMETIC LOGIC UNIT |
| Max I(ol) | 0.008A |
| Number of Bits | 4 |
| Number of Functions | 4 |
| Output Polarity | TRUE |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP24,.6 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 35mA |
| Prop. Delay@Nom-Sup | 62ns |
| Propagation Delay (tpd) | 62ns |
| 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 Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| 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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many arithmetic and logic operations can SNJ54LS181J perform and what is its data width?
SNJ54LS181J is a 4-bit ALU capable of performing 16 distinct arithmetic operations and 16 logic operations, totaling 32 functional modes. It includes internal carry and higher-order lookahead circuitry, enabling low-latency cascading of multiple 4-bit slices to build 8-bit, 16-bit, or wider arithmetic units.
What temperature range and package does SNJ54LS181J target, and is it suitable for aerospace applications?
SNJ54LS181J is a 54-series device housed in a hermetic 24-pin ceramic dual-in-line (CDIP) package rated for extended military temperature ranges. The ceramic packaging and 54-series qualification meet the reliability demands of aerospace, avionics, and defense systems where operating temperatures can span from -55 degrees C to +125 degrees C.
What is the load capacitance spec of SNJ54LS181J and how does it affect system-level timing budget?
SNJ54LS181J specifies a 15 pF load capacitance (CL) and a maximum IOL sink current of 8 mA. These parameters define the drive strength and propagation delay margins when interfacing with LS-TTL bus loads, and designers must account for this capacitance when budgeting setup and hold times in multi-chip ALU configurations operating at frequencies above 10 MHz.
Related Guides
AD1836AASZ vs Equivalents: Multichannel Audio Codec Selection Guide (2025)
Compare AD1836AASZ against PCM1681, PCM1690, and TLV320A24K for automotive and pro-audio multichannel applications. Covers SNR, channel count, AEC-Q100 grade, and control interface trade-offs.
May 30, 2026
ADAU1361BCPZ vs Equivalents: Low-Power Audio Codec Selection Guide (2025)
Compare ADAU1361BCPZ, TLV320AIC3204, WM8731, and ALC5640 across supply voltage, SNR, PLL, package, and ecosystem to choose the right low-power stereo audio codec for your embedded design.
May 30, 2026
How to Choose a USB Controller: Certification, Integration, and SDK Quality Compared Across Microchip, STMicroelectronics, NXP, TI, and Renesas
Compare USB controllers from Microchip, STM, NXP, TI, and Renesas across certification difficulty, integration ease, and documentation/SDK quality to choose the right IC for your design.
May 28, 2026
ADAU1361BCPZ Application Note: Audio Codec Design Guide for Embedded Systems
Complete design guide for the ADAU1361BCPZ stereo 96kHz/24-bit audio codec: power supply filtering, PLL startup sequence, PCB layout, SigmaDSP integration, and troubleshooting.
May 28, 2026
Why Buy from FindMyChip
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.
More from Texas Instruments
PADS131M04IPWR
Small Outline Packages
Integrated Circuit
TPS7B7702QPWPRQ1
Small Outline Packages
Integrated Circuit
TPS7A0309PDBVR
SOT23 (5-Pin)
Integrated Circuit
THS4082CDGN
Small Outline Packages
Integrated Circuit
SN74LVC244ANSRE4
Small Outline Packages
Integrated Circuit
TL720M05QKTTRQ1
Other
Integrated Circuit
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $24.2703 | $242.70 |
| 25+ | $23.2151 | $580.38 |
| 50+ | $22.1599 | $1108.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”