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STMicroelectronics M74HC367TTR
- Part No.:
- M74HC367TTR
- Manufacturer:
- STMicroelectronics
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
M74HC367TTR.pdf
- Description:
- IC BUFFER NON-INVERT 6V 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,368
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Product details
Overview
M74HC367TTR 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-four controlled by G1 and two by G2-with symmetrical output drive (|IOH| = IOL ≥ 6 mA), propagation delay of 9 ns (typ. at VCC = 6 V), and operation across 2 V to 6 V supply. Used in microcontroller address/data bus isolation and memory interface control.
For engineers reviewing the M74HC367TTR datasheet, M74HC367TTR pinout, M74HC367TTR application, or M74HC367TTR equivalent, key selection criteria include 3-state enable timing (tPZL/tPLZ ≤ 23 ns at 6 V), wide VCC range (2–6 V), high noise immunity (VNIH/VNIL ≥ 28% VCC), low ICC (4 µA max at 25°C), and TSSOP-16 package compatibility with space-constrained PCB layouts.
Technical Context
The M74HC367TTR implements dual-group 3-state control logic: G1 enables Y1–Y4 when low; G2 enables Y5–Y6 when low. All inputs include ESD protection diodes and transient voltage clamping. Outputs exhibit balanced rise/fall times (tTLH ≈ tTHL) and matched propagation delays (tPLH ≈ tPHL), supporting clean signal integrity in synchronous bus environments.
It operates across industrial temperature (−55°C to +125°C) with guaranteed DC performance: VIH ≥ 3.15 V (at VCC = 4.5 V), VOL ≤ 0.26 V (IO = 6 mA), VOH ≥ 4.18 V (IO = −6 mA), and input leakage ≤ ±1 µA. AC specs are specified at CL = 50 pF with 6 ns input edge rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Operating Range | 2 V to 6 V - supports mixed-voltage system interfacing (e.g., 3.3 V MCU to 5 V peripheral) |
| tPD Propagation Delay | 9 ns (typ. at VCC = 6 V, CL = 50 pF) - enables ≤ 55 MHz bus operation in high-speed digital logic |
| IOL / IOH Drive Strength | ≥ 6 mA (min.) - sufficient to drive standard TTL loads and multiple CMOS inputs without buffering |
| VNIH / VNIL Noise Margin | ≥ 28% VCC (min.) - ensures robust operation in electrically noisy industrial environments |
| ICC Quiescent Current | 4 µA (max. at TA = 25°C) - enables ultra-low-power standby in battery-backed or energy-sensitive designs |
| tPZL / tPLZ Enable/Disable Time | ≤ 23 ns (max. at VCC = 6 V, RL = 1 kΩ) - allows precise bus arbitration timing in multiplexed data paths |
| Operating Temperature | −55°C to +125°C - qualified for automotive under-hood, industrial motor control, and aerospace avionics |
Pinout & Package
TSSOP-16 package: 4.9 × 6.4 mm body, 0.65 mm pitch, 1.2 mm height, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | G1, G2 | Active-low 3-state enable inputs - G1 controls Y1–Y4; G2 controls Y5–Y6; both must be low for output assertion |
| 2, 4, 6, 10, 12, 14 | A1–A6 | Non-inverting data inputs - directly pass logic state to corresponding Y outputs when enabled |
| 3, 5, 7, 9, 11, 13 | Y1–Y6 | 3-state buffered outputs - high-impedance (Z) when G1/G2 high; driven low/high when enabled |
| 8 | GND | Digital ground reference - decoupling capacitor placement critical for noise suppression on shared bus lines |
| 16 | VCC | Positive supply rail - requires local 100 nF ceramic bypass capacitor near pin for stable high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state control groups | Enables selective bus partitioning - e.g., isolate memory address vs. data lanes using separate G1/G2 signals |
| Symmetrical output impedance | Ensures matched rise/fall times (tTLH ≈ tTHL), minimizing skew-induced setup/hold violations |
| High noise immunity | VNIH/VNIL ≥ 28% VCC guarantees reliable logic recognition despite coupled transients on shared PCB traces |
| Wide supply voltage range | 2–6 V operation eliminates level-shifting needs between 2.5 V, 3.3 V, and 5 V subsystems |
| ESD-protected inputs | Integrated diode clamps withstand ≥ ±2 kV HBM - reduces need for external TVS in board-level ESD design |
Applications
| Microcontroller Bus Isolation | Memory Interface Control |
|---|---|
Use Scenario: Isolating an ARM Cortex-M4's 16-bit address/data multiplexed bus from external SRAM and peripherals. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing direction-controlled bus separation during read/write cycles. Use Value: Enables clean bus turnaround with <23 ns enable/disable timing, eliminating contention during address latching. | Use Scenario: Driving a 32-bit wide SDRAM data bus from a FPGA I/O bank operating at 3.3 V. IC Role / Device Role / Timing Role: Voltage-tolerant bus driver translating between FPGA I/O and 2.5 V SDRAM DQ lines. Use Value: 2–6 V VCC range allows direct 3.3 V operation; 6 mA drive sustains signal integrity over 8 cm FR4 trace lengths. |
| Industrial PLC I/O Expansion | Digital Test Equipment Signal Routing |
Use Scenario: Multiplexing discrete sensor inputs (24 V digital) into a 5 V logic controller via optocoupler interfaces. IC Role / Device Role / Timing Role: Level-translating buffer isolating field-side noise from controller-side logic. Use Value: 28% VCC noise margin rejects common-mode spikes induced by relay coil switching in cabinet wiring. | Use Scenario: Dynamic reconfiguration of test signal paths between DUT pins and measurement instruments in ATE systems. IC Role / Device Role / Timing Role: High-speed 3-state switch enabling sub-100 ns path selection without signal degradation. Use Value: 9 ns propagation delay and matched tPLH/tPHL ensure deterministic timing alignment across parallel test channels. |
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 | DIP-16 package only; identical AC/DC specs and pinout; no TSSOP option | Preferred for through-hole prototyping or legacy board rework where surface-mount is not feasible | Select when manual soldering, breadboarding, or mechanical robustness outweighs PCB area constraints |
| 74LVC367PW | Lower VCC range (1.65–3.6 V); higher drive (24 mA); faster tPD (5.5 ns typ. at 3.3 V) | Optimized for modern low-voltage SoC interfaces; not suitable for 5 V systems | Choose for 3.3 V-only designs requiring higher speed and drive, but verify VCC compatibility first |
Compared with SN74HC367N and 74LVC367PW, the M74HC367TTR uniquely balances 2–6 V operation, TSSOP-16 footprint, and industrial temperature rating - making it optimal for mixed-voltage embedded systems needing compact, rugged bus buffering.
Availability
M74HC367TTR is available at Aetrix Electronics and suitable for microcontroller bus isolation, memory interface control, industrial PLC I/O expansion, and digital test equipment signal routing requiring stable component supply across extended temperature and mixed-voltage conditions.
Supply support for M74HC367TTR 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, power, and microcontroller solutions with vertical manufacturing and broad IP portfolio.
The M74HC367TTR belongs to ST's high-speed HC logic family, engineered for robust, low-power digital interfacing in harsh environments - particularly targeting industrial automation, automotive body electronics, and legacy system upgrades.
FAQ
What is the maximum clock frequency supported by M74HC367TTR in bus applications?
The M74HC367TTR is not a clocked device but a combinational buffer; its usable frequency depends on propagation delay and load. With tPD = 9 ns (typ.) and CL = 50 pF, it supports clean signal transmission up to ~55 MHz in point-to-point configurations. System-level timing must account for board trace delays and fanout.
Can M74HC367TTR drive a 50 Ω transmission line directly?
No - its 6 mA output drive is insufficient for direct 50 Ω termination. It is designed for CMOS/TTL fanout (typically ≤ 10 loads) and short PCB traces. For 50 Ω lines, use a dedicated line driver (e.g., SN65LVDS1) or add series termination and proper impedance matching.
Is M74HC367TTR compatible with 3.3 V logic inputs while powered at 5 V?
Yes - with VCC = 5 V, VIH(min) = 3.5 V and VIL(max) = 1.5 V per datasheet. A 3.3 V logic high (≥ 3.3 V) meets VIH requirement, and 3.3 V logic low (≤ 0.4 V) satisfies VIL. Input thresholds scale with VCC, ensuring safe interfacing.
Does M74HC367TTR require external pull-up or pull-down resistors on G1/G2?
No - G1 and G2 have no internal pull resistors, but their logic states must be actively driven. Floating enables cause undefined output states. In systems where enable signals may be undriven during reset, external 10 kΩ pull-downs to GND ensure default high-impedance output at power-up.
M74HC367TTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- 74HC
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
M74HC367TTR FAQ
1.How can I place an order for M74HC367TTR through Aetrix?
Please submit a Request for Quotation (RFQ) for M74HC367TTR 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 M74HC367TTR reliable?
The price and inventory of M74HC367TTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M74HC367TTR is usually 5 days.
3.What payment methods are accepted for M74HC367TTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M74HC367TTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M74HC367TTR?
M74HC367TTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M74HC367TTR 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 M74HC367TTR?
For technical support, including M74HC367TTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M74HC367TTR requirements.
6.How does Aetrix verify that M74HC367TTR is sourced from the original manufacturer or authorized distributors?
All M74HC367TTR 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 M74HC367TTR meets industry standards.
7.What is the process for return or replacement of M74HC367TTR?
All M74HC367TTR units undergo pre-shipment inspection (PSI). If there is an issue with M74HC367TTR, 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 M74HC367TTR part is unused and in its original packaging.
Return procedure for M74HC367TTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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