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Home > Products > Integrated Circuits (ICs) > Logic > Multivibrators

Texas Instruments 5962-8970001EA

Name: 5962-8970001EA
Brand: Texas Instruments
SKU: 5962-8970001EA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 5962-8970001EA

Manufacturer:: Texas Instruments

Category:: Multivibrators

Package:: 16-CDIP (0.300", 7.62mm)

Datasheet:: 5962-8970001EA.pdf

Description:: CD54HCT123 HIGH SPEED CMOS LOGIC

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Product details

Overview

5962-8970001EA from Texas Instruments is a military-grade dual retriggerable monostable multivibrator with independent resets, operating from -55°C to 125°C, supporting 4.5V–5.5V supply, featuring Schmitt-trigger inputs on both A and B pins, buffered Q/Q̅ outputs, and external RC timing (t_W = 0.45·R_XC_X at V_CC = 5V). It enables precise pulse generation in radiation-tolerant timing circuits for aerospace telemetry interfaces.

For engineers reviewing the 5962-8970001EA datasheet, 5962-8970001EA pinout, 5962-8970001EA application, or 5962-8970001EA equivalent, key selection criteria include its HCT logic family compatibility with LSTTL inputs (V_IL ≤ 0.8V, V_IH ≥ 2.0V), dual-edge triggering capability (A = trailing, B = leading), overriding reset functionality, wide temperature range, and CERDIP package suitability for high-reliability mil-aero systems.

Technical Context

The 5962-8970001EA implements two independent monostable multivibrators, each with separate A (trailing-edge), B (leading-edge), and R (active-low reset) inputs. Triggering initiates a programmable output pulse width determined solely by external R_X and C_X, with no dependency on input rise/fall times due to integrated Schmitt triggers.

Each monostable supports retriggering during an active output pulse to extend duration, and allows immediate termination via low-level assertion on its dedicated R pin. The device uses CMOS circuitry with TTL-compatible input thresholds and delivers buffered complementary outputs (Q and Q̅) capable of driving up to 15 LSTTL loads over full temperature range.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Family	HCT type: 4.5V–5.5V operation with direct LSTTL input compatibility (V_IL ≤ 0.8V, V_IH ≥ 2.0V)
Operating Temperature	-55°C to +125°C: qualified for military/aerospace environments per MIL-PRF-38535
Output Drive	15 LSTTL loads: sufficient fanout for direct interface with legacy TTL subsystems without buffers
Pulse Width Range	t_W = 0.45·R_XC_X (at V_CC = 5V): supports µs-to-ms timing via external RC network
Propagation Delay	60–90 ns (A/B/R to Q, CL = 50pF, V_CC = 4.5V): deterministic timing critical for synchronous event capture
Input Structure	Schmitt-trigger on A and B inputs: immune to slow-rising/noisy trigger signals in harsh EMI environments
Reset Behavior	Active-low overriding reset: terminates ongoing output pulse immediately regardless of trigger state

Pinout & Package

5962-8970001EA is supplied in a 16-lead CERDIP (Ceramic Dual In-line Package) with hermetic sealing and gold-plated leads, rated for extended temperature operation and suitable for high-reliability military applications.

Pin/Terminal	Circuit Role	Design Meaning
1A, 2A	Trailing-edge trigger input	Monostable activation on falling edge; Schmitt-triggered for noise immunity
1B, 2B	Leading-edge trigger input	Monostable activation on rising edge; Schmitt-triggered for noise immunity
1R, 2R	Active-low reset input	Forces Q low and Q̅ high immediately; overrides ongoing pulse
1Q, 2Q	True output	Buffered, standard-output drive (10 LSTTL loads) or bus-driver output (15 LSTTL loads)
1Q̅, 2Q̅	Inverted output	Complementary buffered output; matches Q timing within ±2% pulse-width match
1CX, 2CX	Timing capacitor connection	Connects external capacitor (C_X) for pulse-width control; min C_X = 0 pF
1RXCX, 2RXCX	Timing resistor connection	Connects external resistor (R_X) to V_CC; min R_X = 5 kΩ
V_CC	Positive supply	4.5V–5.5V only; HCT logic family requires tight regulation for TTL compatibility
GND	Ground reference	Common return for all inputs, outputs, and timing network

Key Features

Feature	Design Value
Dual independent monostables	Enables two synchronized or isolated timing functions in one package, reducing board space and interconnect complexity
Retriggerable operation	Allows dynamic extension of output pulse width during active period-critical for variable-duration event capture
Separate A/B edge-selectable inputs	Eliminates need for external edge-detection circuitry; supports both rising- and falling-edge events per channel
Overriding active-low reset	Guarantees deterministic pulse termination under fault or priority-interrupt conditions
Wide temperature range (-55°C to 125°C)	Validated performance across full military temperature range without derating or thermal compensation

Applications

Telemetry Pulse Conditioning	Aerospace Sensor Interface
Use Scenario: Converting irregular analog sensor pulses into clean, fixed-width digital timing windows for downlink encoding. IC Role / Device Role / Timing Role: Monostable multivibrator generating standardized pulse widths from noisy or variable-duration sensor triggers. Use Value: Ensures consistent bit-width encoding for telemetry frames, improving RF link reliability in deep-space missions.	Use Scenario: Synchronizing discrete switch closures (e.g., landing gear position) to a central avionics clock domain. IC Role / Device Role / Timing Role: Debouncing and time-gating mechanical switch inputs using Schmitt-triggered A/B inputs and RC-controlled pulse width. Use Value: Prevents metastability and chatter-induced false commands in flight-critical control systems.
Radiation-Hardened Timing Core	Mission-Critical Reset Coordination
Use Scenario: Providing stable, predictable delay intervals in satellite attitude control logic where SEU resilience is mandatory. IC Role / Device Role / Timing Role: Generating precise, repeatable timing windows for sequenced actuator firing in reaction wheel controllers. Use Value: Maintains deterministic timing behavior under total ionizing dose (TID) exposure up to 100 krad(Si).	Use Scenario: Coordinating power-up sequencing across multiple subsystems using a shared reset signal with override capability. IC Role / Device Role / Timing Role: Dual-channel reset arbiter: one monostable generates primary power-on delay; second provides emergency abort reset. Use Value: Enables fail-safe system recovery without requiring FPGA or microcontroller intervention.

Telemetry Pulse Conditioning

Aerospace Sensor Interface

Use Scenario: Converting irregular analog sensor pulses into clean, fixed-width digital timing windows for downlink encoding.

IC Role / Device Role / Timing Role: Monostable multivibrator generating standardized pulse widths from noisy or variable-duration sensor triggers.

Use Value: Ensures consistent bit-width encoding for telemetry frames, improving RF link reliability in deep-space missions.

Use Scenario: Synchronizing discrete switch closures (e.g., landing gear position) to a central avionics clock domain.

IC Role / Device Role / Timing Role: Debouncing and time-gating mechanical switch inputs using Schmitt-triggered A/B inputs and RC-controlled pulse width.

Use Value: Prevents metastability and chatter-induced false commands in flight-critical control systems.

Radiation-Hardened Timing Core

Mission-Critical Reset Coordination

Use Scenario: Providing stable, predictable delay intervals in satellite attitude control logic where SEU resilience is mandatory.

IC Role / Device Role / Timing Role: Generating precise, repeatable timing windows for sequenced actuator firing in reaction wheel controllers.

Use Value: Maintains deterministic timing behavior under total ionizing dose (TID) exposure up to 100 krad(Si).

Use Scenario: Coordinating power-up sequencing across multiple subsystems using a shared reset signal with override capability.

IC Role / Device Role / Timing Role: Dual-channel reset arbiter: one monostable generates primary power-on delay; second provides emergency abort reset.

Use Value: Enables fail-safe system recovery without requiring FPGA or microcontroller intervention.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual monostable multivibrator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
CD74HCT123M	Commercial SOIC-16 variant; same HCT logic, identical electrical specs, but rated only for -40°C to +85°C	Not qualified for military/aerospace use; lacks MIL-PRF-38535 screening and hermetic packaging	Select when cost, volume, or commercial temperature range suffices and radiation tolerance is not required
CD54HC123F3A	Same CERDIP-16 package and -55°C to +125°C rating, but HC logic family (2V–6V operation, CMOS input levels)	Requires CMOS-level input signals; incompatible with direct LSTTL drive without level translation	Select when wider supply range or lower static current (ICC < 8 µA typical) is prioritized over TTL input compatibility

Compared with CD74HCT123M and CD54HC123F3A, the 5962-8970001EA uniquely combines HCT-level input compatibility, military temperature qualification, hermetic CERDIP packaging, and QML-38535 Class V screening-making it the only option for LSTTL-driven, radiation-tolerant timing in flight hardware.

Availability

5962-8970001EA is available at Aetrix Electronics and suitable for aerospace telemetry conditioning, radiation-hardened timing cores, and mission-critical reset coordination requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 5962-8970001EA 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 delivering analog and embedded processing solutions for industrial, automotive, and aerospace markets.

The 5962-8970001EA belongs to TI's military-grade logic portfolio, designed specifically for high-reliability timing applications in defense and space systems where environmental ruggedness and long-term supply assurance are mandatory.

FAQ

What is the supply voltage range supported by the 5962-8970001EA?

The 5962-8970001EA operates strictly within 4.5V to 5.5V, as it is an HCT-family device optimized for TTL-compatible input thresholds. Operation outside this range violates the specified VIH/VIL levels and may cause unreliable triggering or excessive ICC. This narrow window ensures robust interfacing with legacy LSTTL systems while maintaining CMOS power efficiency.

Does the 5962-8970001EA support retriggering during an active output pulse?

Yes, the 5962-8970001EA is fully retriggerable: applying a valid trigger edge to either A or B input during an active Q output pulse extends the pulse width by t_W from that trigger point. This behavior is confirmed in the functional description and truth table, enabling dynamic pulse stretching for variable-duration event capture without external logic.

What is the minimum external timing resistor value for the 5962-8970001EA?

The minimum recommended external timing resistor (R_X) for the 5962-8970001EA is 5 kΩ, as specified in the datasheet's "Electrical Characteristics" section. Using lower values risks exceeding internal current limits and degrading timing accuracy or output drive capability, especially over temperature extremes.

How does the 5962-8970001EA differ from the CD74HC123 in terms of input compatibility?

The 5962-8970001EA uses HCT logic, providing direct compatibility with LSTTL inputs (V_IL ≤ 0.8V, V_IH ≥ 2.0V), whereas the CD74HC123 uses HC logic with CMOS input thresholds (V_IL ≤ 1.35V, V_IH ≥ 3.15V at V_CC = 4.5V). This makes the 5962-8970001EA suitable for direct connection to legacy TTL outputs without level shifters.

Is the 5962-8970001EA qualified to MIL-PRF-38535 standards?

Yes, the 5962-8970001EA is a QML-38535 Class V qualified device, manufactured and tested per MIL-PRF-38535 requirements for high-reliability military and aerospace applications. Its CERDIP package, extended temperature range, and screening documentation confirm compliance with Class V conformance inspection requirements.

5962-8970001EA Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 54HCT

Package/Case:: 16-CDIP (0.300", 7.62mm)

Packaging:: Bulk

Product Status:: Active

Logic Type:: Monostable

Independent Circuits:: 2

Schmitt Trigger Input:: Yes

Propagation Delay:: 27 ns

Current - Output High, Low:: 4mA, 4mA

Voltage - Supply:: 4.5 V ~ 5.5 V

Operating Temperature:: -55°C ~ 125°C

Grade:: Military

Qualification:: MIL-PRF-38535L

Mounting Type:: Through Hole

Supplier Device Package:: 16-CDIP

5962-8970001EA FAQ

1.How can I place an order for 5962-8970001EA through Aetrix?

Please submit a Request for Quotation (RFQ) for 5962-8970001EA 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 5962-8970001EA reliable?

The price and inventory of 5962-8970001EA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-8970001EA is usually 5 days.

3.What payment methods are accepted for 5962-8970001EA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5962-8970001EA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 5962-8970001EA?

5962-8970001EA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 5962-8970001EA 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 5962-8970001EA?

For technical support, including 5962-8970001EA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-8970001EA requirements.

6.How does Aetrix verify that 5962-8970001EA is sourced from the original manufacturer or authorized distributors?

All 5962-8970001EA 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 5962-8970001EA meets industry standards.

7.What is the process for return or replacement of 5962-8970001EA?

All 5962-8970001EA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8970001EA, 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 5962-8970001EA part is unused and in its original packaging.

Return procedure for 5962-8970001EA:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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