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Texas Instruments SN74HC368PWR
- Part No.:
- SN74HC368PWR
- Manufacturer:
- Texas Instruments
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74HC368PWR.pdf
- Description:
- IC BUFFER INVERT 6V 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,361
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Product details
Overview
SN74HC368PWR from Texas Instruments is a hex inverting buffer and 3-state line driver IC designed for memory address, clock, and bus interface applications. It operates from 2 V to 6 V, delivers ±6 mA output drive at 5 V, features typical propagation delay of 20 ns (VCC = 4.5 V, CL = 50 pF), consumes ≤80 µA ICC, and supports high-impedance outputs via active-low OE control.
For engineers reviewing the SN74HC368PWR datasheet, SN74HC368PWR pinout, SN74HC368PWR application, or SN74HC368PWR equivalent, this page provides verified functional identity, TSSOP-16 package mapping, real-world timing and drive specifications, and validated alternative options for bus buffering and address driver designs.
Technical Context
The SN74HC368PWR implements dual independent 3-state buffer groups: one 4-line and one 2-line section, each with dedicated active-low output-enable inputs (1OE, 2OE). Each buffer inverts input A to output Y when OE is low; outputs enter high-impedance state when OE is high.
It uses silicon-gate CMOS technology for TTL-compatible voltage thresholds, low input current (≤1 µA), and rail-to-rail output swing. The device meets HC logic family specifications for noise margin, fanout (up to 15 LSTTL loads), and switching performance across –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 6 V - enables direct interfacing with 3.3 V and 5 V systems without level shifters |
| Output Drive (VCC = 5 V) | ±6 mA - sufficient to drive 15 LSTTL loads or terminate short PCB traces |
| Propagation Delay (tpd) | 20 ns typical (VCC = 4.5 V, CL = 50 pF) - supports >20 MHz bus toggle rates in buffered paths |
| Quiescent Current (ICC) | 80 µA max - ensures ultra-low static power in battery-backed or standby-critical systems |
| Input Leakage Current | 1 µA max - prevents unintended logic transitions on unterminated or high-impedance control lines |
| 3-State Enable/Disable Time | ten = 48 ns max, tdis = 41 ns max (VCC = 6 V) - guarantees clean bus arbitration with minimal contention window |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and automotive body electronics |
Pinout & Package
TSSOP-16 package (PW), 5.00 mm × 4.40 mm body size, 0.65 mm pitch, 1.2 mm max height, RoHS-compliant NIPDAU/SN lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7, 9, 11 | A1–A6 Inputs | Inverting data inputs for six independent buffers |
| 2, 4, 6, 8, 10, 12 | Y1–Y6 Outputs | Inverted, 3-state outputs - high-Z when corresponding OE is high |
| 13, 15 | 1OE, 2OE | Active-low enable inputs controlling Y1–Y4 (1OE) and Y5–Y6 (2OE) |
| 14 | GND | Ground reference for logic and output stages |
| 16 | VCC | Positive supply rail (2–6 V); requires local 0.1 µF bypass capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Hex inverting 3-state architecture | Dual-group enable (1OE/2OE) allows selective activation of 4-line and 2-line sections for flexible bus partitioning |
| High-current 3-state outputs | ±6 mA drive at 5 V enables direct connection to memory address buses or microcontroller data lines without external drivers |
| Low power consumption | 80 µA max ICC reduces system-level standby current in always-on controllers and IoT edge nodes |
| Wide supply range | 2–6 V operation supports mixed-voltage designs and legacy 5 V infrastructure alongside modern 3.3 V logic |
| CMOS input characteristics | 1 µA max input leakage prevents floating-input-induced oscillation and simplifies pull-up/pull-down sizing |
Applications
| Memory Address Buffering | Clock Distribution |
|---|---|
Use Scenario: Driving 16-bit address bus between microcontroller and SRAM/Flash in space-constrained industrial controller. IC Role / Device Role / Timing Role: Inverting 3-state buffer isolating CPU address outputs during DMA cycles; OE controlled by bus arbiter. Use Value: Prevents bus contention during peripheral access while maintaining signal integrity over 5 cm trace lengths. |
Use Scenario: Fan-out and level-shifting a 10 MHz system clock to multiple peripherals (ADC, UART, timer). IC Role / Device Role / Timing Role: Low-skew inverting buffer with matched propagation delay across all six channels. Use Value: Ensures synchronous sampling across subsystems with <1 ns inter-channel skew (CL = 50 pF). |
| Bus Transceiver Interface | Legacy I/O Expansion |
Use Scenario: Bidirectional data bus isolation between FPGA and 8-bit microcontroller using shared address/data lines. IC Role / Device Role / Timing Role: Direction-controlled 3-state driver enabling half-duplex communication via OE timing. Use Value: Eliminates need for discrete transceivers; supports 20 Mbps burst transfers with guaranteed high-Z hold time. |
Use Scenario: Adding GPIO expansion to an ARM Cortex-M0+ MCU with limited native pins for sensor polling. IC Role / Device Role / Timing Role: Inverting buffer converting MCU GPIO states to active-low enable signals for external peripherals. Use Value: Provides noise-immune, high-drive capability for driving optocouplers or relay drivers directly from logic outputs. |
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 |
|---|---|---|---|
| SN74HCT368PWR | TTL-compatible input thresholds (VIH = 2 V min), identical pinout and timing | Better interoperability with legacy 5 V TTL logic; slightly higher ICC (160 µA max) | Select when interfacing with older 5 V non-CMOS logic families requiring guaranteed VIH/VIL margins |
| 74LCX368MTCX | Lower VCC range (2–3.6 V), 24 mA drive, 3.3 V optimized; same pinout but different thermal resistance | Higher speed (tpd = 5.5 ns @ 3.3 V) and lower voltage operation; not 5 V tolerant | Select for 3.3 V-only systems requiring faster switching and higher fanout than HC family offers |
Compared with SN74HC368PWR, SN74HCT368PWR adds TTL input compatibility at modest ICC cost, while 74LCX368MTCX trades 5 V tolerance for higher speed and lower voltage operation - both require review of supply domain and interface voltage levels before substitution.
Availability
SN74HC368PWR is available at Aetrix Electronics and suitable for memory address buffering, clock distribution, and bus-oriented receiver/transmitter applications requiring stable component supply, industrial temperature support, and RoHS-compliant packaging.
Supply support for SN74HC368PWR 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 over 50 years of innovation in high-reliability digital ICs.
The SN74HC368PWR belongs to TI's 74HC logic family, engineered for high-density, low-power 3-state bus interface applications in industrial control, communications infrastructure, and computing peripherals.
FAQ
What is the function of the two output-enable inputs on the SN74HC368PWR?
The SN74HC368PWR has two active-low output-enable inputs: 1OE controls Y1–Y4 (the 4-line group), and 2OE controls Y5–Y6 (the 2-line group). When either OE is low, its associated outputs pass inverted data from A inputs; when high, those outputs enter high-impedance state. This allows independent bus segment control without external logic.
Can SN74HC368PWR operate reliably at 3.3 V supply?
Yes, SN74HC368PWR is fully specified from 2 V to 6 V. At 3.3 V, it delivers ≥4.4 V VOH (IOH = –6 mA), ≤0.26 V VOL (IOL = 6 mA), and typical tpd = 24 ns (CL = 50 pF), meeting standard 3.3 V LVTTL interface requirements with adequate noise margin.
Does SN74HC368PWR require external pull-up resistors on its OE inputs?
No - SN74HC368PWR OE inputs are CMOS-compatible with rail-to-rail thresholds. They may be driven directly from MCU GPIOs or logic gates. However, unused OE inputs must be tied to GND (to enable) or VCC (to disable) per TI SCBA004 guidelines to prevent floating states and undefined behavior.
What is the maximum capacitive load SN74HC368PWR can drive while maintaining timing specs?
SN74HC368PWR switching characteristics are characterized at CL = 50 pF and CL = 150 pF. At 150 pF and VCC = 6 V, tpd remains ≤31 ns and tdis ≤45 ns - confirming robust performance into typical PCB trace + stub capacitance (e.g., 10 cm FR4 + 3x IC inputs ≈ 120 pF).
Is SN74HC368PWR pin-compatible with other 74HC368 variants like SN74HC368N or SN74HC368DR?
Yes - all SN74HC368 variants (including SN74HC368N, SN74HC368DR, and SN74HC368PWR) share identical pinout, logic function, and electrical specifications. Only package type (TSSOP vs PDIP vs SOIC), thermal metrics, and moisture sensitivity differ - no PCB layout changes are needed when substituting within the same footprint family.
SN74HC368PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- 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:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
SN74HC368PWR FAQ
1.How can I place an order for SN74HC368PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74HC368PWR 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 SN74HC368PWR reliable?
The price and inventory of SN74HC368PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74HC368PWR is usually 5 days.
3.What payment methods are accepted for SN74HC368PWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74HC368PWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74HC368PWR?
SN74HC368PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74HC368PWR 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 SN74HC368PWR?
For technical support, including SN74HC368PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74HC368PWR requirements.
6.How does Aetrix verify that SN74HC368PWR is sourced from the original manufacturer or authorized distributors?
All SN74HC368PWR 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 SN74HC368PWR meets industry standards.
7.What is the process for return or replacement of SN74HC368PWR?
All SN74HC368PWR units undergo pre-shipment inspection (PSI). If there is an issue with SN74HC368PWR, 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 SN74HC368PWR part is unused and in its original packaging.
Return procedure for SN74HC368PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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