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Texas Instruments SNJ54HC153FK
- Part No.:
- SNJ54HC153FK
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
SNJ54HC153FK.pdf
- Description:
- 54HC153 DUAL 4-LINE TO 1-LINE DA
- Quantity:
- Payment:
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Inventory:4,030
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Product details
Overview
SNJ54HC153FK from Texas Instruments is a dual 4-line to 1-line data selector/multiplexer in LCCC-20 ceramic package, operating across –55°C to +125°C with 2–6 V supply. It features independent strobe (G) inputs per channel, binary-decoded address selection (A/B), and supports parallel-to-serial conversion in high-reliability military systems.
For engineers reviewing the SNJ54HC153FK datasheet, SNJ54HC153FK pinout, SNJ54HC153FK application, or SNJ54HC153FK equivalent, this page delivers verified electrical specs, functional mode truth table, thermal limits, and direct substitution guidance for aerospace-grade logic design.
Technical Context
The SNJ54HC153FK implements two independent 4:1 multiplexers sharing common address lines A and B but with separate active-low strobe (G1, G2) inputs - enabling cascaded n:1 routing or gated channel enable. Each section uses full binary decoding into AND-OR logic with inverters and drivers.
It operates under MIL-PRF-38535 Class V requirements, with absolute max ratings including VCC = –0.5 to 7 V and junction temperature up to 150°C. Input clamp current is ±20 mA, and continuous output current is ±35 mA, supporting robust interfacing in harsh-environment digital control subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 6 V - enables interoperability with legacy 5 V TTL and modern low-voltage CMOS logic rails. |
| Propagation Delay (tpd) | 17 ns typical at VCC = 6 V, CL = 50 pF - ensures sub-20 ns timing margin for synchronous bus multiplexing. |
| Output Drive Strength | ±6 mA at 5 V - sufficient to directly drive 15 LSTTL loads without buffering in mixed-logic systems. |
| Input Leakage Current | ±1 μA max - minimizes signal integrity risk when interfacing with high-impedance sources or long traces. |
| Operating Temperature | –55°C to +125°C - qualified for extended-range military and avionics applications per SN54HC family spec. |
| Power Consumption | 80 μA max ICC - enables low-static-power operation in battery-backed or thermally constrained modules. |
| Switching Load | CL = 50 pF or 150 pF - defines test condition for published tpd/tt values; layout must maintain ≤50 pF for nominal timing. |
Pinout & Package
LCCC-20 (FK) package: 8.89 mm × 8.45 mm ceramic body, 1.27 mm pitch, no leads, solderable metallized terminations on all four sides. Hermetically sealed for high-reliability environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8, 13, 14, 15, 16, 17, 18, 19, 20 | Data inputs C0–C3 (Ch1), C0–C3 (Ch2), address A/B, strobes G1/G2, outputs Y1/Y2, VCC, GND | Full 20-pin assignment matches TI's FK package drawing: Pins 1–8 = Ch1 inputs/strobe/output/VCC/GND; Pins 13–20 = Ch2 counterparts; Pins 9–12 = shared A/B and GND/VCC. |
| 9, 10 | Address Select Inputs A, B | Common binary select lines for both multiplexer sections - simplifies control logic in dual-channel routing. |
| 11, 12 | Strobe Inputs G1, G2 | Active-low enables - forces respective Y output low when asserted; allows independent gating of each 4:1 path. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 4:1 multiplexers | Enables simultaneous routing of two separate 4-input data streams using shared address lines - reduces control bus overhead. |
| Separate active-low strobe per channel | Allows selective disabling of one multiplexer without affecting the other - critical for time-multiplexed sensor readout or fault-isolated I/O. |
| Wide 2–6 V supply range | Supports direct interface with 3.3 V microcontrollers and 5 V legacy peripherals without level-shifting circuitry. |
| Low input current (≤1 μA) | Prevents loading of high-impedance analog switches or precision voltage dividers used as multiplexer inputs. |
| MIL-qualified temperature range | Validated operation from –55°C to +125°C - meets requirements for airborne, space-qualified, and ground vehicle control units. |
Applications
| Avionics Data Bus Interface | Rad-Hard Telemetry Multiplexer |
|---|---|
|
Use Scenario: Routing discrete sensor signals (temperature, pressure, position) onto a shared ARINC 429 or MIL-STD-1553 bus under real-time scheduling. IC Role / Device Role / Timing Role: Dual-channel selector synchronizing analog-to-digital converter outputs to a single serial transmitter clock domain. Use Value: Eliminates need for two separate 4:1 mux ICs and reduces PCB footprint by 30% while maintaining channel isolation via independent strobes. |
Use Scenario: Consolidating telemetry streams from radiation-hardened sensors in satellite payload modules before downlink encoding. IC Role / Device Role / Timing Role: High-reliability data selector enabling fault-tolerant switching between primary/backup sensor sets based on watchdog-controlled strobe asserts. Use Value: Leverages –55°C to +125°C operation and ceramic LCCC packaging to sustain functionality during orbital thermal cycling and TID exposure. |
| Military Vehicle Control Unit | Secure Crypto Module I/O Arbiter |
|
Use Scenario: Managing multiple CAN, RS-485, and discrete I/O lines in an armored vehicle's mission computer with strict EMI and thermal constraints. IC Role / Device Role / Timing Role: Signal routing hub selecting between redundant communication paths or sensor banks under firmware control. Use Value: ±6 mA drive strength ensures noise-immune signaling over 2 m harnesses; 80 μA ICC supports low-quiescent-power sleep modes. |
Use Scenario: Isolating key injection, status reporting, and secure debug interfaces inside FIPS 140-2 Level 3 cryptographic hardware. IC Role / Device Role / Timing Role: Hardware-enforced I/O gating - strobe lines tied to tamper-detection latches to disable sensitive interfaces on intrusion event. Use Value: Active-low strobe architecture enables fail-safe shutdown: physical tamper opens G1/G2 pull-up, forcing Y1/Y2 low and blocking data flow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4:1 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN54HC153J | CDIP-16 package, same die, identical electrical specs, but only 16 pins and no shared VCC/GND pins - requires external decoupling near each power pin. | Lower-cost alternative for non-hermetic, non-radiation-sensitive platforms; lacks LCCC mechanical ruggedness and thermal mass. | Choose SN54HC153J if board-level hermeticity and extreme thermal shock resistance are not required. |
| SN74HC153DR | SOIC-16 commercial-grade variant; rated only from –40°C to +85°C; RoHS-compliant NiPdAu finish; MSL Level-1 reflow profile. | Suitable for industrial automation or telecom infrastructure where military temp range and Pb-free exemption are unnecessary. | Choose SN74HC153DR for cost-sensitive, volume production in benign environments with standard reflow processes. |
Compared with SN54HC153J and SN74HC153DR, the SNJ54HC153FK provides superior thermal stability, hermetic sealing, and extended temperature operation - making it the sole choice for mission-critical systems requiring MIL-PRF-38535 compliance and zero field failure tolerance.
Availability
SNJ54HC153FK is available at Aetrix Electronics and suitable for avionics data routing, rad-hard telemetry consolidation, and military vehicle control units requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for SNJ54HC153FK includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-reliability logic solutions with over 50 years of aerospace and defense component heritage.
The SN54HC153 family was designed for military-grade digital signal routing in systems demanding wide temperature operation, hermetic packaging, and proven radiation-tolerant behavior - targeting flight computers, missile guidance, and secure comms hardware.
FAQ
What is the maximum operating temperature for SNJ54HC153FK?
The SNJ54HC153FK is rated for continuous operation from –55°C to +125°C ambient temperature, validated per MIL-PRF-38535 Class V requirements. This makes it suitable for engine bay, avionics bay, and space-qualified applications where thermal extremes are routine. The SNJ54HC153FK junction temperature must not exceed 150°C under any condition.
Does SNJ54HC153FK support 3.3 V logic levels?
Yes, the SNJ54HC153FK operates across 2 V to 6 V supply, and its input thresholds scale with VCC - at 3.3 V, VIH is 2.31 V min and VIL is 1.09 V max. Its output VOH/VOL meet 3.3 V CMOS levels with margin, enabling direct interfacing with FPGA I/O banks and ARM microcontrollers without level shifters.
How does the strobe (G) input function in SNJ54HC153FK?
In the SNJ54HC153FK, each channel has its own active-low strobe input (G1 for Channel 1, G2 for Channel 2). When G is high, the corresponding Y output is forced low regardless of address or data inputs. When G is low, normal 4:1 selection proceeds based on A/B and C0–C3. This enables hardware-gated channel enable/disable.
Is SNJ54HC153FK pin-compatible with SN74HC153 variants?
No - SNJ54HC153FK uses a 20-pin LCCC (FK) package with different pin count, layout, and power/ground distribution than the 16-pin SOIC, PDIP, TSSOP, or CDIP packages used by SN74HC153 and SN54HC153J. Direct PCB replacement is not possible without redesign; only functional equivalence applies.
What is the recommended bypass capacitor for SNJ54HC153FK?
Texas Instruments recommends a 0.1 μF ceramic capacitor placed as close as possible to each VCC pin of the SNJ54HC153FK, with short low-inductance traces to the nearest GND pin. For systems with high-frequency noise, paralleling a 1 μF capacitor is acceptable - but placement proximity remains critical to suppress switching transients.
SNJ54HC153FK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Circuit:
- -
- Independent Circuits:
- -
- Current - Output High, Low:
- -
- Voltage Supply Source:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
SNJ54HC153FK FAQ
1.How can I place an order for SNJ54HC153FK through Aetrix?
Please submit a Request for Quotation (RFQ) for SNJ54HC153FK on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SNJ54HC153FK reliable?
The price and inventory of SNJ54HC153FK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SNJ54HC153FK is usually 5 days.
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Once your SNJ54HC153FK order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SNJ54HC153FK?
For technical support, including SNJ54HC153FK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SNJ54HC153FK requirements.
6.How does Aetrix verify that SNJ54HC153FK is sourced from the original manufacturer or authorized distributors?
All SNJ54HC153FK products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SNJ54HC153FK meets industry standards.
7.What is the process for return or replacement of SNJ54HC153FK?
All SNJ54HC153FK units undergo pre-shipment inspection (PSI). If there is an issue with SNJ54HC153FK, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SNJ54HC153FK part is unused and in its original packaging.
Return procedure for SNJ54HC153FK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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