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STMicroelectronics M74HC367B1R
- Part No.:
- M74HC367B1R
- Manufacturer:
- STMicroelectronics
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
M74HC367B1R.pdf
- Description:
- IC BUFFER NON-INVERT 6V 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,739
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Product details
Overview
M74HC367B1R from STMicroelectronics is a high-speed CMOS hex bus buffer with non-inverting 3-state outputs, designed for bidirectional data bus interfacing in digital systems. It features six independent buffers grouped into two enable-controlled sections (G1 controls four channels; G2 controls two), operates across 2V–6V supply, delivers 9ns typical propagation delay at 6V, and supports ±6mA output drive with symmetrical impedance.
For engineers reviewing the M74HC367B1R datasheet, M74HC367B1R pinout, M74HC367B1R application, or M74HC367B1R equivalent, key selection criteria include 3-state enable timing (tPZL/tPLZ ≤22ns at 6V), wide VCC range compatibility, input noise immunity (28% VCC), low ICC (4µA max), and DIP-16 package mechanical fit for legacy board layouts.
Technical Context
The M74HC367B1R implements dual-gated 3-state logic using silicon gate C2MOS technology, enabling selective bus isolation without signal inversion. Its two independent enable inputs (G1, G2) allow partitioned control of six buffer channels - four tied to G1, two to G2 - supporting flexible bus arbitration schemes in multi-master systems.
DC and AC specifications are fully characterized across -55°C to +125°C, with guaranteed VOH/VOL performance at ±6mA/±7.8mA loads, 50pF/150pF load-dependent propagation delays (tPLH/tPHL ≤22ns at 6V/50pF), and high-impedance enable/disable times (tPZL/tPLZ ≤25ns at 6V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2V to 6V - supports mixed-voltage system interfacing and battery-powered operation down to 2V logic levels |
| tPD (Typ.) | 9ns at VCC = 6V - enables high-throughput data transfer in 100+ MHz bus environments |
| IOL / IOH | ±6mA min - drives standard TTL loads and multiple CMOS inputs without external buffering |
| VNIH / VNIL | 28% VCC min - provides robust noise margin against EMI in industrial wiring environments |
| ICC (Max) | 4µA at TA = 25°C - ensures ultra-low static power in always-on control logic stages |
| Operating Temp | -55°C to +125°C - qualified for automotive under-hood and industrial motor-control applications |
| CL Load | 50pF to 150pF - validated for PCB trace capacitance up to 15 cm of 50Ω microstrip |
Pinout & Package
Package: Plastic DIP-16 (0.300" width), JEDEC MS-001 compliant, through-hole mountable with 2.54mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | G1, G2 | Active-low 3-state enable inputs - G1 controls pins 3/5/7/9; G2 controls pins 11/13 |
| 2, 4, 6, 10, 12, 14 | 1A–6A | Non-inverting data inputs - direct connection to upstream logic or microcontroller GPIO |
| 3, 5, 7, 9, 11, 13 | 1Y–6Y | 3-state buffered outputs - electrically isolated when G1/G2 = HIGH; drive buses or peripherals when enabled |
| 8 | GND | Logic ground reference - must be connected to system common ground plane for noise immunity |
| 16 | VCC | Positive supply - decoupling capacitor (100nF) required within 1cm of pin for stable AC operation |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state enables | Allows segmented bus control - e.g., CPU data bus (G1) and peripheral address latch (G2) managed separately |
| Symmetrical output drive | |IOH| = IOL ≥ 6mA - eliminates skew between rising/falling edges in clock distribution or data strobes |
| Balanced propagation delays | tPLH ≅ tPHL - minimizes duty cycle distortion in regenerated clock or enable signals |
| ESD-protected inputs | Withstands ±2kV HBM - reduces need for external TVS diodes in panel-mounted I/O modules |
| Wide temperature range | Specified from -55°C to +125°C - supports deployment in unheated outdoor enclosures and engine compartments |
Applications
| Industrial PLC Backplane | Legacy Microcontroller Bus Expansion |
|---|---|
Use Scenario: Isolating CPU address/data buses from modular I/O cards in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Non-inverting 3-state bus buffer enabling/disabling card-specific data paths under firmware control. Use Value: Prevents bus contention during hot-swap; supports deterministic read/write timing with <22ns enable/disable latency. | Use Scenario: Extending 8-bit parallel bus of 8051 or Z80-based embedded systems to external memory or peripherals. IC Role / Device Role / Timing Role: Level-shifting and fanout buffer for multiplexed AD0–AD7 lines with synchronous 3-state gating. Use Value: Maintains signal integrity over 10+ cm traces; meets 100ns setup/hold windows for SRAM access cycles. |
| Automotive Body Control Module | Test Equipment Signal Routing |
Use Scenario: Interfacing microcontroller GPIOs to LIN transceiver arrays and relay driver ICs in junction boxes. IC Role / Device Role / Timing Role: Bidirectional bus isolator with separate enables for diagnostic and operational modes. Use Value: Enables fail-safe bus shutdown during fault conditions; survives 125°C ambient per AEC-Q100 stress profiles. | Use Scenario: Reconfigurable signal path switching in automated test fixtures for mixed-signal PCB validation. IC Role / Device Role / Timing Role: Low-skew, low-leakage signal gate for routing stimulus/response signals between DUT and instruments. Use Value: Reduces crosstalk via high-Z isolation; supports <100ps edge jitter budget in 50MHz pattern generators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC367N | Same logic function and pinout; TI version rated only to 85°C ambient, lower noise immunity (20% VCC) | Limited to commercial-grade equipment; not suitable for under-hood or extended-temperature industrial use | Select when cost sensitivity outweighs extended temperature or noise margin requirements |
| 74VHC367N | Higher speed (tPD = 5.5ns typ.), but reduced drive strength (±4mA) and narrower VCC range (2V–5.5V) | Better for high-frequency clock forwarding; unsuitable for driving heavy capacitive loads or 6V systems | Prefer where propagation delay dominates over bus loading capability |
Compared with SN74HC367N and 74VHC367N, the M74HC367B1R uniquely combines full -55°C to +125°C operation, 28% VCC noise immunity, and 6mA drive at 6V - making it optimal for ruggedized, mixed-voltage, and long-lifetime deployments.
Availability
M74HC367B1R is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, legacy microcontroller bus expansion, and test equipment signal routing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for M74HC367B1R 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power management ICs with vertical manufacturing and broad analog/digital portfolio.
The M74HC367B1R belongs to ST's high-reliability HC logic family, engineered for interoperability with legacy 74-series designs while delivering enhanced noise immunity, extended temperature operation, and low-power static consumption for mission-critical control infrastructure.
FAQ
What is the maximum capacitive load the M74HC367B1R can drive while maintaining specified tPLH/tPHL?
The device is characterized up to 150pF load capacitance with CL = 50pF and CL = 150pF test conditions. At 6V VCC, tPLH/tPHL remains ≤27ns for CL = 150pF. Driving >150pF may increase delay unpredictably and requires empirical validation with actual PCB layout parasitics.
Can G1 and G2 be tied together for single-enable operation?
Yes - connecting G1 and G2 to a common control signal enables all six buffers simultaneously. This configuration is electrically valid and maintains full DC/AC specifications, though it forfeits independent channel-group control used in advanced bus arbitration schemes.
Does the M74HC367B1R require external pull-up or pull-down resistors on unused inputs?
No - all inputs include internal protection diodes and have no internal biasing. However, floating inputs risk undefined logic states and increased ICC. ST recommends tying unused A-inputs to VCC or GND; unused G1/G2 should be held LOW to avoid unintended high-Z output states.
Is the M74HC367B1R RoHS compliant and lead-free?
Yes - the M74HC367B1R (DIP-16 package) conforms to RoHS Directive 2011/65/EU and is manufactured with lead-free terminations. The "B1R" order code denotes RoHS-compliant plastic DIP packaging, verified per ST's official product change notices and material declarations.
M74HC367B1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 74HC
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-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:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-DIP
M74HC367B1R FAQ
1.How can I place an order for M74HC367B1R through Aetrix?
Please submit a Request for Quotation (RFQ) for M74HC367B1R 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 M74HC367B1R reliable?
The price and inventory of M74HC367B1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M74HC367B1R is usually 5 days.
3.What payment methods are accepted for M74HC367B1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M74HC367B1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M74HC367B1R?
M74HC367B1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M74HC367B1R 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 M74HC367B1R?
For technical support, including M74HC367B1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M74HC367B1R requirements.
6.How does Aetrix verify that M74HC367B1R is sourced from the original manufacturer or authorized distributors?
All M74HC367B1R 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 M74HC367B1R meets industry standards.
7.What is the process for return or replacement of M74HC367B1R?
All M74HC367B1R units undergo pre-shipment inspection (PSI). If there is an issue with M74HC367B1R, 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 M74HC367B1R part is unused and in its original packaging.
Return procedure for M74HC367B1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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