Texas Instruments SN74HC367PWR

Overview

SN74HC367PWR from Texas Instruments is a hex buffer and line driver IC with 3-state outputs, organized as two independent banks (4-line + 2-line), each controlled by its own active-low output-enable pin (1OE, 2OE). It operates from 2 V to 6 V, delivers ±6 mA output drive at 5 V, exhibits typical propagation delay of 10 ns, and supports up to 15 LSTTL loads - ideal for memory address buffering and bus driving in industrial control systems.

For engineers reviewing the SN74HC367PWR datasheet, SN74HC367PWR pinout, SN74HC367PWR application, or SN74HC367PWR equivalent, key selection criteria include its dual-bank 3-state architecture, TSSOP-16 package compatibility, wide 2–6 V supply range, low 80 µA max ICC, and verified timing performance under 50 pF load conditions.

Technical Context

The SN74HC367PWR implements CMOS-based hex buffering with true (non-inverting) outputs and independent 3-state control per bank. Its functional modes are strictly defined by OE logic: when OE is low, A→Y pass-through occurs; when OE is high, outputs enter high-impedance state - enabling bidirectional bus management without external logic.

It uses standard HC-series silicon process with input clamp diodes, absolute maximum ratings up to 7 V supply, and thermal resistance (RθJA) of 108 °C/W in TSSOP-16. Electrical behavior is specified across −40°C to +85°C, with VIH/VIL thresholds scaling linearly with VCC (e.g., VIH = 3.15 V at VCC = 4.5 V).

Key Specifications

Pinout & Package

TSSOP-16 package: 5.00 mm × 4.40 mm body, 1.2 mm max height, 0.65 mm lead pitch, gull-wing leads, moisture sensitivity level 1 (260°C peak reflow).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex buffer with 3-state output applications.

Compared with SN74HCT367PWR, the SN74HC367PWR offers lower power and wider supply flexibility but reduced TTL noise margin; versus 74LVC125APW, it provides dual-bank control and 5 V tolerance at the cost of lower drive strength and higher static current.

Availability

SN74HC367PWR is available at Aetrix Electronics and suitable for industrial automation, test equipment, and embedded control applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant TSSOP packaging.

Supply support for SN74HC367PWR 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 ICs, with over 50 years of innovation in industrial-grade logic families.

The SN74HC367PWR belongs to TI's 74HC high-speed CMOS logic product line, designed specifically for robust, low-power buffering and bus-driving in noise-prone industrial and instrumentation environments.

FAQ

What is the maximum clock frequency supported by SN74HC367PWR?

The SN74HC367PWR does not operate as a clocked device but as a combinatorial buffer. Its usable frequency limit is determined by propagation delay and load: with 50 pF load and 4.5 V supply, typical tpd = 19 ns, supporting reliable signal transmission up to ~25 MHz for edge-aligned timing. For higher frequencies, verify setup/hold margins using actual board trace capacitance and driver strength in your design.

Can SN74HC367PWR drive a 50 Ω transmission line directly?

No - the SN74HC367PWR is not designed for 50 Ω line driving. Its ±6 mA output drive at 5 V yields ~833 Ω effective impedance, making it suitable for unterminated stubs or CMOS/LSTTL fanout, not controlled-impedance routing. For 50 Ω lines, use dedicated line drivers like SN65LVDS1 or add series termination resistors matched to trace impedance.

Is SN74HC367PWR pin-compatible with SN74HC244PWR?

No - SN74HC367PWR and SN74HC244PWR have different pinouts and functional architectures. SN74HC367PWR features dual independent OE pins (1OE, 2OE) controlling 4+2 buffers, while SN74HC244PWR has two OE pins controlling 4+4 buffers with different pin assignments (e.g., OE1 on pin 19, not pin 1). PCB layout and firmware initialization must be redesigned for substitution.

Does SN74HC367PWR require external pull-up or pull-down resistors on OE pins?

Yes - OE pins are active-low and internally unconnected. To ensure predictable startup behavior, tie 1OE and 2OE to VCC via 10 kΩ resistors unless actively driven by a controller. Leaving them floating risks undefined output states, potential bus contention, and increased ICC due to input leakage-induced oscillation - especially critical in powered-down or reset states.

What is the thermal derating behavior of SN74HC367PWR in TSSOP-16 package?

With RθJA = 108 °C/W, the SN74HC367PWR dissipates ≤15 mW under typical conditions (6 buffers × 35 pF × 5 V² × 10 MHz = ~5.25 mW). At full 85°C ambient, junction temperature remains below 100°C even at 2× worst-case ICC. Derating is unnecessary below 50 MHz operation or 70°C ambient; above that, reduce switching frequency or add local copper pour to lower effective RθJA by ~20%.