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Texas Instruments CD74HCT368M96
- Part No.:
- CD74HCT368M96
- Manufacturer:
- Texas Instruments
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CD74HCT368M96.pdf
- Description:
- IC BUFFER INVERT 5.5V 16SOIC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
CD74HCT368M96 from Texas Instruments is a high-speed CMOS hex inverting buffer/line driver with three-state outputs, designed for bus interface and data routing in industrial control and instrumentation systems. It features dual independent three-state enable controls (1OE, 2OE), 4.5 V to 5.5 V operation, and typical propagation delay of 11 ns at VCC = 5 V, CL = 15 pF, TA = 25°C.
For engineers reviewing the CD74HCT368M96 datasheet, CD74HCT368M96 pinout, CD74HCT368M96 application, or CD74HCT368M96 equivalent, this page delivers verified functional identity, SOIC-16 package mapping, true inverting logic behavior, LSTTL-compatible input thresholds (VIL ≤ 0.8 V, VIH ≥ 2.0 V), and confirmed bus-driver output capability (15 LSTTL loads).
Technical Context
The CD74HCT368M96 implements six independent inverting buffers, partitioned into two groups: four buffers controlled by 1OE (pins 1, 2, 4, 5, 6, 7, 9, 10) and two by 2OE (pins 15, 12, 11, 14, 13). Each output drives up to 15 LSTTL loads with guaranteed VOH ≥ 3.98 V and VOL ≤ 0.26 V at IOL/IOH = ±4 mA.
It operates across –55°C to +125°C, supports 4.5–5.5 V supply, and exhibits balanced tPLH/tPHL (11 ns typ.) and fast transition times (12 ns typ.). Its CMOS input structure draws ≤1 μA leakage, while HCT logic ensures direct compatibility with legacy TTL signal levels without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - Ensures robust operation in standard 5 V digital systems with ±5% tolerance. |
| Propagation Delay (tpd) | 11 ns (typ.) at VCC = 5 V, CL = 15 pF - Enables reliable timing in high-speed bus applications up to ~45 MHz. |
| Output Drive | ±4 mA per output - Sustains signal integrity when driving 15 LSTTL inputs or moderate PCB trace capacitance. |
| Input Thresholds | VIL ≤ 0.8 V, VIH ≥ 2.0 V - Guarantees seamless interfacing with standard TTL logic families without external biasing. |
| Operating Temperature | –55°C to +125°C - Qualified for extended industrial, automotive under-hood, and military-grade environments. |
| Three-State Leakage (IOZ) | ±5 μA max at VCC = 5.5 V - Minimizes bus contention current during high-impedance state in shared-bus architectures. |
| Power Dissipation Cap. (CPD) | 42 pF - Used to calculate dynamic power: PD = VCC² × fi × (CPD + CL), critical for thermal design in dense layouts. |
Pinout & Package
CD74HCT368M96 is housed in a 16-pin SOIC (D) package with nominal body size 9.90 mm × 3.90 mm, RoHS-compliant NIPDAU lead finish, and moisture sensitivity level (MSL) Level-1 (unlimited floor life at ≤30°C/60% RH).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (1OE) | Group 1 Output Enable | Active-low control for Y1–Y4 outputs; asserts high-impedance state when high. |
| 2 (1A1) | Input A1 | Inverting input for first buffer; drives inverted output on pin 3 (1Y1). |
| 3 (1Y1) | Output Y1 | Inverted replica of 1A1; three-state when 1OE = high. |
| 4 (1A2) | Input A2 | Inverting input for second buffer; drives inverted output on pin 5 (1Y2). |
| 5 (1Y2) | Output Y2 | Inverted replica of 1A2; three-state when 1OE = high. |
| 6 (1A3) | Input A3 | Inverting input for third buffer; drives inverted output on pin 7 (1Y3). |
| 7 (1Y3) | Output Y3 | Inverted replica of 1A3; three-state when 1OE = high. |
| 9 (1A4) | Input A4 | Inverting input for fourth buffer; drives inverted output on pin 10 (1Y4). |
| 10 (1Y4) | Output Y4 | Inverted replica of 1A4; three-state when 1OE = high. |
| 11 (2Y1) | Output Y5 | Inverted replica of 2A1; three-state when 2OE = high. |
| 12 (2A1) | Input A5 | Inverting input for fifth buffer; drives inverted output on pin 11 (2Y1). |
| 13 (2Y2) | Output Y6 | Inverted replica of 2A2; three-state when 2OE = high. |
| 14 (2A2) | Input A6 | Inverting input for sixth buffer; drives inverted output on pin 13 (2Y2). |
| 15 (2OE) | Group 2 Output Enable | Active-low control for Y5–Y6 outputs; independent of 1OE for flexible bus segmentation. |
| 8 (GND) | Ground | Reference return path for all signals and power; must be low-impedance for noise immunity. |
| 16 (VCC) | Supply Voltage | Positive supply rail; requires local 0.1 μF bypass capacitor adjacent to pin for stable switching. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent three-state enables | Allows selective isolation of two logical bus segments (4-line + 2-line) without external logic or timing coordination. |
| LSTTL-compatible input thresholds | Eliminates need for level shifters when interfacing with legacy 74LS, 74ALS, or microcontroller GPIOs operating at TTL voltage levels. |
| High-current bus-driver outputs | Delivers ±4 mA drive strength to maintain signal rise/fall times <15 ns even with 50 pF load, supporting longer traces or fanout. |
| Wide temperature range (–55°C to +125°C) | Enables deployment in harsh environments including motor control enclosures, avionics bays, and outdoor telecom equipment. |
| Low static power consumption | ICC ≤ 160 μA max over full temperature range - reduces system-level heat generation and extends battery life in portable instrumentation. |
Applications
| Industrial PLC Backplane Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Isolating sensor data lines from CPU bus during firmware updates or fault recovery cycles. IC Role / Device Role / Timing Role: Inverting three-state buffer providing direction-controlled data isolation between microcontroller and analog front-end ASICs. Use Value: Dual OE pins allow independent gating of 4-channel ADC data paths and 2-channel DAC feedback loops without bus contention. |
Use Scenario: Driving multiplexed LED status indicators and relay drivers from a single 8-bit port with partial enable control. IC Role / Device Role / Timing Role: Hex inverting line driver translating MCU GPIO states to higher-current outputs while preserving logic polarity. Use Value: Guaranteed 125°C operation and ±4 mA drive ensure reliable indicator visibility and relay coil activation across engine bay temperature extremes. |
| Test Equipment Signal Routing | Avionics Data Acquisition Unit |
Use Scenario: Reconfigurable signal path selection in automated test fixtures where DUT I/O must be isolated during calibration sequences. IC Role / Device Role / Timing Role: Bus interface buffer enabling hot-swap-safe connection/disconnection of measurement channels via software-controlled OE signals. Use Value: Low IOZ (±5 μA) and fast enable/disable timing (≤45 ns) prevent transient glitches during channel reconfiguration. |
Use Scenario: Interfacing radiation-hardened FPGA I/O banks to legacy ARINC 429 transceivers requiring TTL-compatible input thresholds. IC Role / Device Role / Timing Role: Level-shifting inverter ensuring deterministic logic interpretation despite FPGA core voltage mismatch (1.2 V vs 5 V). Use Value: VIH ≥ 2.0 V and VIL ≤ 0.8 V guarantee noise-immune recognition of FPGA output states across full temperature and voltage tolerances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HCT368N | Same logic function, pinout, and electrical specs; PDIP-16 package instead of SOIC-16. | Preferred for through-hole prototyping or legacy board repair where SOIC footprint is unavailable. | Select SN74HCT368N only when manual soldering or socket-based testing is required; identical timing and drive strength. |
| CD74HCT368E | Identical silicon die and specifications; same SOIC-16 pinout but packaged in PDIP-16 with 25-unit tube packaging. | Suitable for low-volume production, lab validation, or mixed-technology boards combining surface-mount and through-hole components. | Choose CD74HCT368E if existing assembly line supports both SOIC and PDIP, or for engineering samples requiring hand-soldered evaluation. |
Compared with SN74HCT368N and CD74HCT368E, CD74HCT368M96 offers tape-and-reel delivery (2500 units), optimized for automated SMT placement, tighter MSL-1 handling, and consistent long-term supply chain traceability - making it the preferred choice for volume industrial manufacturing.
Availability
CD74HCT368M96 is available at Aetrix Electronics and suitable for industrial control backplanes, automotive body electronics, test equipment signal routing, and avionics data acquisition units requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CD74HCT368M96 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 logic solutions, with decades of heritage in high-reliability industrial and automotive ICs.
CD74HCT368M96 belongs to TI's CD74HCT logic family, engineered for drop-in replacement of legacy 74LS devices while delivering CMOS power efficiency and enhanced noise immunity across extreme temperature environments.
FAQ
What is the logic function of CD74HCT368M96?
The CD74HCT368M96 is a hex inverting buffer with three-state outputs. It provides six independent inverting logic gates (A → Y̅), each capable of high-impedance (Z) output when its associated enable signal (1OE or 2OE) is asserted high. This allows bidirectional bus control and signal isolation in digital systems without requiring external inverters or tristate logic gates.
Does CD74HCT368M96 support 3.3 V logic inputs?
No - CD74HCT368M96 is an HCT-type device designed specifically for 4.5 V to 5.5 V operation and LSTTL-compatible input thresholds (VIL ≤ 0.8 V, VIH ≥ 2.0 V). It does not guarantee correct operation with 3.3 V logic levels; for mixed-voltage systems, use HC-series variants like CD74HC368M96 or add level-shifting circuitry before the inputs.
What is the maximum capacitive load CD74HCT368M96 can drive reliably?
CD74HCT368M96 is characterized to drive up to 15 LSTTL loads (≈ 450 pF total), with specified switching performance (tpd ≤ 45 ns, tt ≤ 18 ns) at CL = 50 pF. For heavier loads, propagation delay increases linearly; derating is required beyond 100 pF to maintain timing margins in synchronous bus designs.
Can CD74HCT368M96 replace CD74HC368M96 in an existing design?
Yes - CD74HCT368M96 is pin-compatible and functionally identical to CD74HC368M96, but with tighter input threshold specifications (VIH/VIL matched to TTL) and restricted VCC range (4.5–5.5 V vs. 2–6 V). Substitution is safe if the system operates at 5 V and requires guaranteed TTL compatibility; however, HC variants offer wider voltage flexibility.
What is the purpose of having two separate output enables (1OE and 2OE) on CD74HCT368M96?
The dual output enables (1OE for Y1–Y4, 2OE for Y5–Y6) allow independent control of two logical bus segments. This enables partial bus isolation - for example, holding diagnostic signals active while disabling main data paths - reducing system-level arbitration complexity and eliminating need for additional gating logic in multi-function interface designs.
CD74HCT368M96 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HCT
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 2, 4 (Hex)
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 4mA, 4mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
CD74HCT368M96 FAQ
1.How can I place an order for CD74HCT368M96 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74HCT368M96 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 CD74HCT368M96 reliable?
The price and inventory of CD74HCT368M96 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74HCT368M96 is usually 5 days.
3.What payment methods are accepted for CD74HCT368M96?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74HCT368M96 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74HCT368M96?
CD74HCT368M96 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74HCT368M96 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 CD74HCT368M96?
For technical support, including CD74HCT368M96 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74HCT368M96 requirements.
6.How does Aetrix verify that CD74HCT368M96 is sourced from the original manufacturer or authorized distributors?
All CD74HCT368M96 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 CD74HCT368M96 meets industry standards.
7.What is the process for return or replacement of CD74HCT368M96?
All CD74HCT368M96 units undergo pre-shipment inspection (PSI). If there is an issue with CD74HCT368M96, 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 CD74HCT368M96 part is unused and in its original packaging.
Return procedure for CD74HCT368M96:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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