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Texas Instruments SNJ54HC132J
- Part No.:
- SNJ54HC132J
- Manufacturer:
- Texas Instruments
- Category:
- Gates and Inverters
- Package:
- 14-CDIP (0.300", 7.62mm)
- Datasheet:
-
SNJ54HC132J.pdf
- Description:
- IC NAND QUAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,127
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Product details
Overview
SNJ54HC132J from Texas Instruments is a military-grade quadruple 2-input NAND gate IC with Schmitt-trigger inputs, operating across –55°C to +125°C. It delivers hysteresis (ΔVT = 0.5 V min at 6 V), 5.2 mA output drive, and <27 ns propagation delay at 6 V - enabling robust noise immunity and reliable latch formation in harsh-environment alarm and tamper-detection circuits.
For engineers reviewing the SNJ54HC132J datasheet, SNJ54HC132J pinout, SNJ54HC132J application, or SNJ54HC132J equivalent, this page provides verified military-spec timing behavior, CDIP-14 package dimensions, Schmitt-trigger input thresholds, push-pull output drive capability, and direct alternatives for S-R latch and signal conditioning designs.
Technical Context
The SNJ54HC132J implements four independent CMOS NAND gates, each performing Y = A ● B in positive logic with Schmitt-trigger inputs that provide defined VT+ (2.1 V min) and VT− (1.2 V max) thresholds at 6 V supply. Its balanced push-pull outputs support ±5.2 mA drive while maintaining VOL ≤ 0.33 V and VOH ≥ 5.48 V under load.
This device operates within military temperature range (–55°C to +125°C) and meets MIL-PRF-38535 requirements. Input hysteresis (ΔVT = 0.5–2.5 V) rejects slow-rising or noisy signals, and its 14-pin CDIP package features hermetic sealing suitable for aerospace and defense systems requiring long-term reliability under thermal cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Four independent 2-input NAND gates with Schmitt-trigger inputs |
| Supply Voltage Range | 2 V to 6 V - supports legacy 5 V and low-voltage 2 V systems |
| Operating Temperature | –55°C to +125°C - qualified per MIL-PRF-38535 Class B |
| Propagation Delay | 14 ns typ at 6 V - enables fast response in tamper detection latches |
| Hysteresis (ΔVT) | 0.5 V min at 6 V - ensures noise margin >200 mV against EMI in industrial wiring |
| Output Drive | ±5.2 mA at 6 V - sufficient to directly drive LEDs or TTL inputs without buffering |
| Input Capacitance | 10 pF max - minimizes loading on upstream signal sources |
Pinout & Package
SNJ54HC132J uses a 14-pin Ceramic Dual In-line Package (CDIP) with 19.94 mm × 7.62 mm body size, hermetically sealed for high-reliability military applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 1B, 2A, 2B, 3A, 3B, 4A, 4B | Input | Eight Schmitt-trigger inputs - tolerate slow edges and reject noise up to ΔVT amplitude |
| 1Y, 2Y, 3Y, 4Y | Output | Four CMOS push-pull outputs - sink/source up to ±5.2 mA with rail-to-rail swing |
| 7 | GND | Ground reference - must be low-impedance for stable noise rejection and output switching |
| 14 | VCC | Positive supply - requires local 0.1 µF bypass capacitor to suppress transients |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Provides 0.5–2.5 V hysteresis to eliminate chatter from noisy or slow-switching sensors |
| Military temperature rating | –55°C to +125°C operation - validated for avionics, missile guidance, and ground vehicle control |
| CMOS push-pull outputs | Delivers rail-aligned VOH ≥ 5.48 V and VOL ≤ 0.33 V at 5.2 mA - eliminates need for external level-shifting |
| Low ICC current | Max 40 µA supply current at 6 V - enables battery-backed tamper monitoring with minimal drain |
| No-connect pins | None - all 14 pins are functional; no NC terminals to misroute or misinterpret |
Applications
| Alarm / Tamper Detect Circuit | S-R Latch |
|---|---|
Use Scenario: Monitoring physical enclosure integrity using mechanical switches or conductive foil loops. IC Role / Device Role / Timing Role: SNJ54HC132J forms active-low SR latch that holds alarm state until system controller resets it. Use Value: Schmitt-trigger inputs prevent false triggers from switch bounce or EMI; hysteresis ensures clean set/reset transitions. | Use Scenario: Storing one-bit status (e.g., fault flag, power-on reset state) in safety-critical control logic. IC Role / Device Role / Timing Role: Two gates implement cross-coupled latch; remaining two gates condition sensor inputs or drive indicators. Use Value: Guaranteed operation over full military temperature range ensures latch stability in engine bays or radar shelters. |
| Industrial Sensor Interface | Waveform Shaping |
Use Scenario: Conditioning analog sensor outputs (e.g., thermistor voltage dividers, proximity detector signals) before ADC sampling. IC Role / Device Role / Timing Role: SNJ54HC132J acts as noise-immune signal squarer and edge cleaner for slow-rising sensor voltages. Use Value: Input hysteresis converts noisy or sluggish analog waveforms into clean digital logic levels without external RC filtering. | Use Scenario: Converting irregular clock or timing signals (e.g., from crystal oscillators with poor rise/fall times) into consistent square waves. IC Role / Device Role / Timing Role: Single gate used as Schmitt-trigger inverter to reshape waveform edges and restore logic margins. Use Value: Propagation delay variation <±3 ns across temperature ensures predictable timing alignment in synchronous systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NAND gate with Schmitt-trigger input applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC132N | Commercial temperature range (–40°C to +85°C); PDIP-14 package; identical logic and electrical specs except temp rating | Not qualified for military/aerospace use; unsuitable for systems requiring extended temperature validation | Select when cost-sensitive industrial designs do not require MIL-STD-883 screening or hermetic packaging |
| SNJ54LS132J | TTL logic family; higher ICC (19 mA typical); lower noise immunity (no hysteresis); 14-pin CDIP | Higher power consumption and reduced noise margin limit use in battery-powered or EMI-prone environments | Choose only for legacy TTL system compatibility where Schmitt-trigger functionality is not required |
Compared with SNJ54HC132J, SN74HC132N offers identical functionality at lower cost but lacks military qualification, while SNJ54LS132J provides pin-compatible TTL replacement at the expense of power efficiency and noise rejection - making SNJ54HC132J the sole choice for ruggedized Schmitt-trigger NAND applications.
Availability
SNJ54HC132J is available at Aetrix Electronics and suitable for aerospace avionics, defense electronics, and industrial control systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for SNJ54HC132J 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 U.S.-based semiconductor company founded in 1930, specializing in analog and embedded processing technologies with broad industrial, automotive, and defense market reach.
The SNJ54HC132J belongs to TI's military-grade HC logic family, designed specifically for high-reliability applications demanding extended temperature operation, hermetic packaging, and MIL-PRF-38535 compliance.
FAQ
What is the maximum supply voltage for SNJ54HC132J?
The absolute maximum supply voltage for SNJ54HC132J is 7 V, but the recommended operating range is 2 V to 6 V per the datasheet. Operation above 6 V risks exceeding absolute maximum ratings and may degrade long-term reliability. For stable performance in military systems, TI specifies 4.5 V to 5.5 V as the optimal nominal range, where VOH and VOL parameters are fully characterized.
Does SNJ54HC132J have unused pins that must be tied off?
No, SNJ54HC132J has no unused or no-connect (NC) pins - all 14 pins are functional: eight inputs (1A–4B), four outputs (1Y–4Y), one GND, and one VCC. Unlike some variants (e.g., LCCC FK package), the CDIP-14 configuration uses every pin, eliminating ambiguity in PCB layout or termination requirements.
How does the Schmitt-trigger input improve noise immunity in SNJ54HC132J?
The Schmitt-trigger input in SNJ54HC132J provides hysteresis (ΔVT = 0.5–2.5 V depending on VCC), meaning the threshold for detecting a rising edge (VT+ = 2.1 V min at 6 V) differs from that for a falling edge (VT− = 1.2 V max). This prevents multiple toggles when input signals cross the threshold slowly or with superimposed noise - a critical advantage in tamper switch interfaces or long-wire sensor connections.
Can SNJ54HC132J drive an LED directly?
Yes, SNJ54HC132J can drive an LED directly in active-low configuration: connect the LED anode to VCC and cathode to an output (e.g., 1Y) through a current-limiting resistor. At 6 V supply, the output sinks up to 5.2 mA while maintaining VOL ≤ 0.33 V - sufficient for indicator LEDs drawing ≤4 mA. Ensure resistor value satisfies (VCC − VLED − VOL)/ILED to avoid exceeding output current limits.
Is SNJ54HC132J RoHS compliant?
SNJ54HC132J is not RoHS compliant due to its leaded ceramic DIP (CDIP) package and military specification construction. It contains lead in both die attach and lead finish, conforming to exemption 7a (high-melting temperature solder) and 7c-I (electrical contacts) under Directive 2011/65/EU. Aetrix Electronics supplies this part with full traceability and documentation for defense and aerospace programs requiring legacy-qualified components.
SNJ54HC132J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 54HC
- Package/Case:
- 14-CDIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- NAND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- Schmitt Trigger Input
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Input Logic Level - Low:
- 1V ~ 3.2V
- Input Logic Level - High:
- 1.5V ~ 4.2V
- Max Propagation Delay @ V, Max CL:
- 21ns @ 6V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-CDIP
SNJ54HC132J FAQ
1.How can I place an order for SNJ54HC132J through Aetrix?
Please submit a Request for Quotation (RFQ) for SNJ54HC132J 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 SNJ54HC132J reliable?
The price and inventory of SNJ54HC132J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SNJ54HC132J is usually 5 days.
3.What payment methods are accepted for SNJ54HC132J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SNJ54HC132J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SNJ54HC132J?
SNJ54HC132J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SNJ54HC132J 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 SNJ54HC132J?
For technical support, including SNJ54HC132J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SNJ54HC132J requirements.
6.How does Aetrix verify that SNJ54HC132J is sourced from the original manufacturer or authorized distributors?
All SNJ54HC132J 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 SNJ54HC132J meets industry standards.
7.What is the process for return or replacement of SNJ54HC132J?
All SNJ54HC132J units undergo pre-shipment inspection (PSI). If there is an issue with SNJ54HC132J, 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 SNJ54HC132J part is unused and in its original packaging.
Return procedure for SNJ54HC132J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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