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Texas Instruments M38510/65702BCA
- Part No.:
- M38510/65702BCA
- Manufacturer:
- Texas Instruments
- Category:
- Gates and Inverters
- Package:
- 14-CDIP (0.300", 7.62mm)
- Datasheet:
-
M38510/65702BCA.pdf
- Description:
- IC INVERT SCHMITT 6CH 6IN 14CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,392
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Product details
Overview
M38510/65702BCA from Texas Instruments is a military-grade hex inverter IC with Schmitt-trigger inputs, performing Y = A logic inversion across six independent channels. It operates from 2 V to 6 V supply voltage, supports –55°C to +125°C temperature range, delivers ≤26 ns propagation delay at 6 V, and is used for switch debouncing, clock synchronization, and digital signal inversion in ruggedized systems.
For engineers reviewing the M38510/65702BCA datasheet, M38510/65702BCA pinout, M38510/65702BCA application, or M38510/65702BCA equivalent, key selection criteria include its 54HC logic family compliance, CDIP (14) hermetic ceramic package, guaranteed operation over full military temperature range, and Schmitt-trigger hysteresis enabling robust noise immunity on slow-rising inputs.
Technical Context
This device implements six identical CMOS inverters, each featuring balanced push-pull outputs capable of sourcing/sinking up to ±25 mA and exhibiting 0.5–2.5 V hysteresis (ΔVT) depending on VCC. Its input structure includes clamping diodes for ESD protection and supports fanout of up to 10 LSTTL loads.
The M38510/65702BCA conforms to the SN54HC14 specification per MIL-PRF-38535 Class B, with absolute maximum ratings including 7 V supply voltage, ±20 mA clamp current, and 150°C junction temperature - confirming suitability for high-reliability aerospace and defense applications requiring extended thermal and electrical margins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 54HC - compatible with TTL-level inputs and CMOS-level outputs; enables mixed-logic interfacing |
| Supply Voltage Range | 2 V to 6 V - supports single-supply operation across battery, 3.3 V, and 5 V systems |
| Operating Temperature | –55°C to +125°C - qualified for military-grade environmental stress and long-term reliability |
| Propagation Delay | 11–26 ns at 6 V - ensures timing predictability in synchronous control and clock conditioning circuits |
| Hysteresis (ΔVT) | 0.5 V (min) at 6 V - rejects noise up to ±250 mV peak-to-peak on input signals |
| Output Drive | ±25 mA - sufficient to directly drive LEDs, small relays, or multiple CMOS inputs without buffering |
| Input Capacitance | 10 pF - minimizes loading on upstream signal sources and preserves edge integrity |
Pinout & Package
Package: CDIP (14), hermetically sealed ceramic dual in-line package with 0.300-inch body width and 0.100-inch lead pitch - designed for high-reliability mounting and long-term stability under thermal cycling and humidity exposure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 2A, 3A, 4A, 5A, 6A | Input | Schmitt-triggered inverter inputs; require no external pull-up/down for noise immunity |
| 1Y, 2Y, 3Y, 4Y, 5Y, 6Y | Output | CMOS push-pull outputs; capable of driving capacitive loads ≤70 pF while meeting timing specs |
| VCC | Power Supply | Positive supply terminal; requires local 0.1 µF bypass capacitor to suppress switching noise |
| GND | Ground Reference | Return path for all internal logic and output currents; must be low-impedance for stable operation |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Provides 0.5–2.5 V hysteresis to eliminate chatter on slow or noisy signals - critical for mechanical switch interfaces |
| Wide supply range (2–6 V) | Enables direct integration into legacy 5 V, modern 3.3 V, and low-power 2 V subsystems without level-shifting |
| MIL-PRF-38535 Class B qualification | Guarantees screening, testing, and traceability per military reliability standards - required for flight-critical hardware |
| Clamp diode protection | Integrated ±20 mA input/output clamp diodes - enhances survivability against ESD and transient overvoltage events |
| Low ICC (≤40 µA) | Reduces static power draw in always-on monitoring circuits - extends battery life in portable defense electronics |
Applications
| Switch Debounce Circuit | Asynchronous Clock Synchronization |
|---|---|
Use Scenario: Mechanical pushbutton or toggle switch interfaced to microcontroller GPIO with contact bounce causing false interrupts. IC Role / Device Role / Timing Role: Inverter channel acts as noise-immune signal conditioner - converts erratic switch transitions into clean digital edges. Use Value: Eliminates need for software debouncing or RC filters; reduces firmware complexity and interrupt latency in real-time control loops. | Use Scenario: Synchronizing an external asynchronous clock domain (e.g., sensor sampling clock) to a system master clock. IC Role / Device Role / Timing Role: Inverter provides precise edge inversion to generate complementary timing reference for flip-flop-based synchronizers. Use Value: Ensures setup/hold time compliance for metastability-hardened clock domain crossing - improves system uptime in avionics data acquisition. |
| Digital Signal Level Translation | Ruggedized Sensor Interface |
Use Scenario: Converting TTL-compatible logic levels (0.8 V/2.0 V thresholds) to CMOS-compatible levels (0.3×VCC/0.7×VCC) in mixed-voltage systems. IC Role / Device Role / Timing Role: Inverter performs bidirectional level adaptation via Schmitt-trigger hysteresis and rail-to-rail output swing. Use Value: Enables interoperability between legacy 5 V peripherals and modern 3.3 V processors without dedicated level translators. | Use Scenario: Conditioning analog sensor outputs (e.g., thermistor comparator, proximity detector) subject to EMI in vehicle-mounted or airborne environments. IC Role / Device Role / Timing Role: Inverter serves as hardened digital buffer - accepts slow-rising, noisy analog comparator outputs and delivers clean CMOS logic levels. Use Value: Maintains functional integrity under radiated emissions >10 V/m and conducted transients per MIL-STD-461 - critical for mission-critical sensing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverter with Schmitt-trigger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN54HC14J | Same die, plastic CDIP package - not hermetically sealed; lower moisture resistance and thermal cycling endurance | Limited to commercial/military non-flight applications where MIL-PRF-38535 Class B is not mandated | Select when cost sensitivity outweighs long-term reliability requirements in ground-based test equipment |
| 74ACT14SCX | Faster propagation delay (≤10 ns at 5 V); higher drive strength (±24 mA); but narrower VCC range (4.5–5.5 V only) | Better suited for high-speed clock distribution; unsuitable for wide-input-voltage or battery-powered systems | Choose for 5 V-only systems demanding sub-10 ns timing precision and higher fanout capability |
Compared with SN54HC14J and 74ACT14SCX, the M38510/65702BCA uniquely combines hermetic CDIP packaging, full military temperature range, and 2–6 V operation - making it the only option qualified for embedded flight control and missile guidance subsystems requiring zero field failures.
Availability
M38510/65702BCA is available at Aetrix Electronics and suitable for aerospace avionics, defense electronics, and industrial control systems requiring stable component supply across extended product lifecycles and obsolescence-sensitive programs.
Supply support for M38510/65702BCA 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 manufacturer specializing in analog and embedded processing solutions, with over 90 years of innovation in high-reliability components for defense, space, and industrial markets.
The M38510/65702BCA belongs to TI's military 54HC logic family - engineered specifically for applications demanding radiation tolerance, extreme temperature resilience, and long-term parametric stability under mechanical stress.
FAQ
What is the maximum operating temperature range specified for the M38510/65702BCA?
The M38510/65702BCA is rated for operation from –55°C to +125°C, fully compliant with MIL-PRF-38535 Class B requirements. This range is validated through temperature cycling, burn-in, and parametric testing across the entire lot - ensuring consistent performance in engine bay, radar pod, and satellite payload environments where ambient extremes exceed commercial-grade limits. The M38510/65702BCA maintains specified propagation delay and hysteresis values across this full span.
Does the M38510/65702BCA require external pull-up or pull-down resistors on unused inputs?
No, unused inputs on the M38510/65702BCA must be tied directly to VCC or GND - not left floating - but do not require external resistors due to its Schmitt-trigger architecture. The internal input threshold hysteresis prevents oscillation even with slow-rising or noisy signals, eliminating the need for pull resistors in most cases. However, if an input may be disconnected during operation, a 10-kΩ resistor is recommended to guarantee defined logic state. This behavior is confirmed in the M38510/65702BCA functional description and layout guidelines.
What is the typical propagation delay of the M38510/65702BCA at 5 V supply?
At VCC = 5 V and TA = 25°C, the M38510/65702BCA exhibits a typical propagation delay (tpd) of 25 ns, with a maximum of 31 ns over the full –55°C to +125°C operating range. This value is measured from input transition (50% point) to output transition (50% point) under standard load conditions (CL = 50 pF). The M38510/65702BCA datasheet specifies this delay for both rising and falling edges, confirming symmetrical switching performance essential for clock inversion and timing-critical debounce functions.
Can the M38510/65702BCA drive a 70 pF capacitive load while maintaining timing specifications?
Yes, the M38510/65702BCA is characterized to drive up to 70 pF capacitive load while meeting all published timing and voltage specifications, including propagation delay and output transition time. This limit is explicitly stated in the application design guidelines for the M38510/65702BCA and verified across temperature and voltage extremes. Exceeding 70 pF may increase tpd and tt beyond datasheet maxima; for larger loads, a series current-limiting resistor is recommended to maintain compliance with absolute maximum output current ratings.
Is the M38510/65702BCA pin-compatible with commercial SN74HC14 variants?
The M38510/65702BCA shares identical pinout and logic function with SN74HC14 and SN54HC14 devices in CDIP (14) packages, including pin assignments for all six input/output pairs, VCC, and GND. However, it is not a drop-in replacement for plastic-package variants due to differences in thermal resistance, moisture sensitivity, and screening requirements. The M38510/65702BCA must be mounted using hermetic sealing protocols and qualified reflow profiles appropriate for ceramic DIP - distinct from commercial SOIC or TSSOP assembly processes.
M38510/65702BCA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 54HC
- Package/Case:
- 14-CDIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Logic Type:
- Inverter
- Number of Circuits:
- 6
- Number of Inputs:
- 6
- Features:
- Schmitt Trigger
- 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
M38510/65702BCA FAQ
1.How can I place an order for M38510/65702BCA through Aetrix?
Please submit a Request for Quotation (RFQ) for M38510/65702BCA 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 M38510/65702BCA reliable?
The price and inventory of M38510/65702BCA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M38510/65702BCA is usually 5 days.
3.What payment methods are accepted for M38510/65702BCA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M38510/65702BCA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M38510/65702BCA?
M38510/65702BCA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M38510/65702BCA 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 M38510/65702BCA?
For technical support, including M38510/65702BCA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M38510/65702BCA requirements.
6.How does Aetrix verify that M38510/65702BCA is sourced from the original manufacturer or authorized distributors?
All M38510/65702BCA 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 M38510/65702BCA meets industry standards.
7.What is the process for return or replacement of M38510/65702BCA?
All M38510/65702BCA units undergo pre-shipment inspection (PSI). If there is an issue with M38510/65702BCA, 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 M38510/65702BCA part is unused and in its original packaging.
Return procedure for M38510/65702BCA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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