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Nexperia USA Inc. 74HCT368PW,118
- Part No.:
- 74HCT368PW,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HCT368PW,118.pdf
- Description:
- IC BUFFER INVERT 5.5V 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,221
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Product details
Overview
74HCT368PW,118 from Nexperia is a hex inverting 3-state buffer/line driver in TSSOP16 package, operating from 4.5 V to 5.5 V with TTL-compatible inputs, 13 ns typical propagation delay at 4.5 V, ±6 mA output drive, and -40 °C to +125 °C temperature range - used for bidirectional bus interfacing in industrial control backplanes.
For engineers reviewing the 74HCT368PW,118 datasheet, 74HCT368PW,118 pinout, 74HCT368PW,118 application, or 74HCT368PW,118 equivalent, key selection criteria include TTL-level input compatibility, 3-state enable timing (17 ns enable / 20 ns disable), output drive capability under 5 V supply, and thermal performance in TSSOP16 packaging for high-density PCB layouts.
Technical Context
This device implements six independent inverting buffers, each with active-low 3-state output control via dedicated OE pins (1OE on Pin 1, 2OE on Pin 15). Logic operation follows standard Boolean inversion: when OE is LOW, output Y = NOT(A); when OE is HIGH, output enters high-impedance state regardless of input.
Input clamping diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. Static and dynamic characteristics are fully specified across -40 °C to +125 °C, with VIH/VIL thresholds fixed at 2.0 V/0.8 V (TTL-compatible), ensuring robust noise immunity in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - supports stable operation across standard 5 V rail tolerances without level-shifting. |
| Propagation Delay | 13 ns typical (nA to nY, VCC = 4.5 V, CL = 15 pF) - enables reliable timing in 30+ MHz bus systems. |
| Output Drive | ±6 mA (VOH ≥ 3.98 V, VOL ≤ 0.26 V at VCC = 4.5 V) - sufficient to drive 50 pF loads or multiple CMOS inputs. |
| Enable/Disable Time | 17 ns enable (tPZH/tPZL), 20 ns disable (tPHZ/tPLZ) - ensures clean bus turnaround with minimal contention window. |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - matches standard TTL logic families for direct interface without translators. |
| Operating Temperature | -40 °C to +125 °C - qualified for extended industrial and under-hood applications. |
| Power Dissipation | 8 μA ICC per input (VCC = 5.5 V, static) - enables low-quiescent-power bus buffering in always-on systems. |
Pinout & Package
TSSOP16 plastic thin shrink small outline package (SOT403-1), 4.4 mm body width, 0.65 mm lead pitch, 16-pin surface-mount format optimized for high-density PCB assembly and thermal performance up to 125 °C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | 1OE, 2OE | Active-low output enable controls for Groups 1–3 and 4–6 outputs respectively; both must be LOW for functional output. |
| 2, 4, 6, 10, 12, 14 | 1A–6A | Independent inverting data inputs; each drives corresponding Y output when its OE is asserted. |
| 3, 5, 7, 9, 11, 13 | 1Y–6Y | Inverted, 3-state outputs; present NOT(A) when OE = LOW, high-Z when OE = HIGH. |
| 8 | GND | Ground reference for all I/O and internal circuitry; requires low-impedance PCB plane connection. |
| 16 | VCC | Positive supply terminal; decoupling capacitor (100 nF ceramic) required within 5 mm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH = 2.0 V min, VIL = 0.8 V max - eliminates need for external level shifters when interfacing with legacy 5 V TTL logic. |
| Independent dual OE control | Two separate active-low enables (1OE, 2OE) allow partitioned bus control - e.g., isolate address vs. data groups. |
| Clamped inputs | Integrated clamp diodes permit safe overvoltage input handling (e.g., 12 V signals with series resistor) without external protection. |
| High noise immunity | Typical noise margin > 0.9 V at VCC = 5 V - suppresses false triggering in electrically noisy factory automation environments. |
| JEDEC-compliant | Meets JESD8C (2.7–3.6 V) and JESD7A (2.0–6.0 V); latch-up immune (>100 mA) and ESD-robust (HBM >2000 V, CDM >1000 V). |
Applications
| Industrial PLC Backplane | Legacy Bus Isolation |
|---|---|
Use Scenario: Bidirectional data routing between CPU module and I/O expansion slots in programmable logic controllers. IC Role / Device Role / Timing Role: Inverting 3-state buffer isolates shared data bus segments during module hot-swap or fault conditions. Use Value: Dual OE pins enable independent gating of address and data lanes; 20 ns disable time prevents bus contention during slot reconfiguration. |
Use Scenario: Interfacing modern microcontrollers to legacy RS-485 transceivers or parallel EEPROMs with TTL-level signaling. IC Role / Device Role / Timing Role: Level-translating buffer provides TTL-compatible input thresholds and 5 V CMOS output swing. Use Value: Eliminates discrete resistor networks or dedicated level shifters; 13 ns propagation delay preserves timing margins in 10 Mbps UART or 1 MHz parallel memory access. |
| Test Equipment Signal Routing | Automated Test Fixture Control |
Use Scenario: Dynamic reconfiguration of signal paths in automated board test systems using FPGA-controlled buses. IC Role / Device Role / Timing Role: Hex inverter with 3-state outputs acts as programmable signal inverter and bus gate. Use Value: Independent OE control allows per-lane enable/disable; low ICC (8 μA) minimizes power impact in multi-channel fixtures. |
Use Scenario: Driving relay coils and opto-isolator inputs from microcontroller GPIOs in production test jigs. IC Role / Device Role / Timing Role: Current-boosting inverting buffer translates weak MCU outputs into robust 6 mA drive signals. Use Value: Guaranteed VOL ≤ 0.26 V at 6 mA ensures reliable turn-on of 1.2 V LED-based status indicators and 5 V optocouplers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverting 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HCT368N | PDIP-16 package; higher thermal resistance (θJA = 70 °C/W vs. 117 °C/W for TSSOP); no moisture sensitivity level rating. | Suitable only for prototyping or low-volume through-hole assembly; not recommended for reflow-soldered industrial PCBs. | Select only if manual soldering or socket-based testing is required; avoid for volume SMT production. |
| 74HCT240PW,118 | Octal (8-channel) non-inverting 3-state buffer; identical TSSOP16 package and electrical specs except polarity and channel count. | Used where bus directionality requires non-inverting logic or higher channel density per package. | Choose when system architecture needs 8-bit unidirectional buffering without inversion; verify signal polarity alignment. |
Compared with SN74HCT368N, the 74HCT368PW,118 offers superior thermal performance and moisture reliability for automated SMT lines; compared with 74HCT240PW,118, it provides inversion functionality essential for complementary bus architectures but with two fewer channels.
Availability
74HCT368PW,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, legacy bus isolation, test equipment signal routing, and automated test fixture control requiring stable component supply across extended temperature ranges.
Supply support for 74HCT368PW,118 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
Nexperia is a global semiconductor expert delivering high-performance, reliable logic, analog, and MOSFET solutions for industrial, automotive, and computing applications.
The 74HCT368 belongs to Nexperia's high-speed TTL-compatible logic family, designed specifically for robust bus interfacing and signal conditioning in harsh industrial environments with wide temperature and noise requirements.
FAQ
Can 74HCT368PW,118 operate at 3.3 V supply?
No. The 74HCT368 variant is specified only for 4.5 V to 5.5 V operation. Its TTL-compatible input thresholds (VIH = 2.0 V min) and output drive characteristics are guaranteed only within that range. For 3.3 V systems, use the 74HC368PW variant instead, which supports 2.0 V to 6.0 V with CMOS-level inputs.
What is the maximum capacitive load this device can drive reliably?
The device is characterized up to 50 pF load capacitance (per output) with guaranteed timing and voltage levels. At CL = 50 pF and VCC = 4.5 V, propagation delay remains ≤30 ns and VOL stays ≤0.33 V at 6 mA sink current. Exceeding 50 pF may degrade transition times and increase ground bounce.
Are the two OE inputs internally connected?
No. Pins 1 (1OE) and 15 (2OE) are electrically isolated and control separate output groups: 1OE enables outputs 1Y–3Y (Pins 3,5,7), while 2OE enables outputs 4Y–6Y (Pins 9,11,13). This allows independent bus segment control without external logic.
Does this part support hot-swap or live-insertion?
It supports controlled hot-swap when used with proper power sequencing and current-limiting on OE and input lines. The input clamp diodes allow safe biasing during insertion, but VCC must be stabilized before asserting OE; full hot-swap compliance requires external circuitry per IEC 61000-4-2.
74HCT368PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 16-TSSOP (0.173", 4.40mm 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:
- 6mA, 6mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
74HCT368PW,118 FAQ
1.How can I place an order for 74HCT368PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT368PW,118 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 74HCT368PW,118 reliable?
The price and inventory of 74HCT368PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT368PW,118 is usually 5 days.
3.What payment methods are accepted for 74HCT368PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT368PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT368PW,118?
74HCT368PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT368PW,118 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 74HCT368PW,118?
For technical support, including 74HCT368PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT368PW,118 requirements.
6.How does Aetrix verify that 74HCT368PW,118 is sourced from the original manufacturer or authorized distributors?
All 74HCT368PW,118 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 74HCT368PW,118 meets industry standards.
7.What is the process for return or replacement of 74HCT368PW,118?
All 74HCT368PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT368PW,118, 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 74HCT368PW,118 part is unused and in its original packaging.
Return procedure for 74HCT368PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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