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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

Nexperia USA Inc. 74HC244PW,112

Name: 74HC244PW,112
Brand: Nexperia USA Inc.
SKU: 74HC244PW,112
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74HC244PW,112

Manufacturer:: Nexperia USA Inc.

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 20-TSSOP (0.173", 4.40mm Width)

Datasheet:: 74HC244PW,112.pdf

Description:: NEXPERIA 74HC244PW - BUS DRIVER,

Quantity:: RFQ Add To RFQ list

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Inventory:59,175

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Product details

Overview

74HC244PW,112 from Nexperia is an octal non-inverting buffer/line driver with 3-state outputs, designed for bus-oriented applications requiring high-speed data transmission and load isolation. It operates at 2V–6V supply, delivers ±7.8mA output drive, features 19ns typical propagation delay at 4.5V, and supports industrial temperature range (−40°C to +125°C). Used in microcontroller I/O expansion and address/data bus buffering.

For engineers reviewing the 74HC244PW,112 datasheet, 74HC244PW,112 pinout, 74HC244PW,112 application, or 74HC244PW,112 equivalent, key selection criteria include 3-state control timing, output drive capability under 5V logic, propagation delay consistency across channels, and TSSOP-20 package thermal performance in dense PCB layouts.

Technical Context

This device integrates eight independent non-inverting buffers, each with separate 3-state enable inputs (1OE, 2OE) controlling four channels per group. Logic-level compatibility spans 3.3V and 5V systems, and input hysteresis ensures noise immunity on control lines. Output structure uses standard CMOS push-pull stages without internal clamping diodes.

Propagation delay asymmetry between rising/falling edges is ≤1.5ns at V_CC = 4.5V, and DC noise margin exceeds 1.0V at both logic thresholds. The device complies with JEDEC JESD78 Class II latch-up immunity and meets AEC-Q100 Grade 1 stress testing requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	2.0V–6.0V - supports mixed-voltage system interfacing without level shifters
Output Drive	±7.8mA @ V_CC = 4.5V - sufficient to drive 15pF loads with <20ns edge rates
t_PD (typ)	19ns @ V_CC = 4.5V, C_L = 50pF - enables reliable operation up to 25MHz bus clocking
Input Threshold	V_IH = 3.15V, V_IL = 1.35V @ V_CC = 4.5V - ensures robust TTL and CMOS logic compatibility
Operating Temp	−40°C to +125°C - qualified for under-hood automotive and industrial control environments
Static Current	I_CC ≤ 8μA @ V_CC = 6V - negligible quiescent power impact in always-on subsystems

Pinout & Package

TSSOP-20 package: 0.65mm pitch, 6.5mm × 4.4mm body, exposed pad not electrically connected, JEDEC MO-153 compliant.

Pin/Terminal	Circuit Role	Design Meaning
1, 19	Output Enable (1OE, 2OE)	Active-low enables Group A (pins 2–5) or Group B (pins 13–16); tied high disables all outputs
2–5, 13–16	Data Outputs (Y1–Y4, Y5–Y8)	CMOS push-pull outputs with 3-state capability; sink/source up to 7.8mA
6–9, 12, 17–20	Data Inputs (A1–A4, A5–A8)	Standard CMOS inputs with hysteresis; no internal pull-ups or pull-downs
10, 20	GND / V_CC	Separate ground and supply pins per side - reduces switching noise coupling between groups

Key Features

Feature	Design Value
Octal non-inverting buffer	Enables bidirectional bus isolation without signal inversion; eliminates need for external inverters in control paths
Dual independent 3-state controls	Allows interleaved enable/disable of two 4-bit data lanes - critical for time-multiplexed memory or peripheral addressing
High noise immunity	Input hysteresis ≥0.5V ensures reliable operation in electrically noisy industrial enclosures
Low dynamic power consumption	Capacitive load current dominates power use; static I_CC remains <8μA even during extended standby

Applications

Microcontroller I/O Expansion

Address Bus Buffering

Use Scenario: Expanding GPIO count on ARM Cortex-M0+ MCU with limited native pins for sensor array readout.

IC Role / Device Role / Timing Role: Non-inverting buffer isolating MCU pins from capacitive sensor bus; 3-state control synchronizes with SPI frame boundaries.

Use Value: Prevents signal degradation across 15cm PCB traces while maintaining <20ns timing margin for 25MHz sampling clocks.

Use Scenario: Driving 16-bit address lines from FPGA to multiple SRAM chips in a real-time motion controller.

IC Role / Device Role / Timing Role: Address line repeater with dual OE control enabling bank-select gating; matches FPGA output slew rate.

Use Value: Eliminates address skew between banks, ensuring simultaneous SRAM access within 12ns setup window.

Data Bus Isolation

Industrial PLC Backplane Interface

Use Scenario: Isolating CAN controller data lines from shared RS-485 diagnostic port in rail signaling equipment.

IC Role / Device Role / Timing Role: Bidirectional data buffer with OE synchronized to transceiver direction control; prevents bus contention.

Use Value: Enables hot-swappable module detection without disrupting CAN frame integrity or introducing >5ns jitter.

Use Scenario: Interfacing legacy 5V parallel I/O modules to modern 3.3V PLC CPU backplane.

IC Role / Device Role / Timing Role: Level-tolerant buffer translating between voltage domains while preserving timing alignment across 8-bit data path.

Use Value: Maintains 100ns minimum pulse width on strobe signals despite 1.5V logic swing difference.

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74HC244N	DIP-20 package; higher thermal resistance (θ_JA = 70°C/W vs. 125°C/W for TSSOP)	Preferred for through-hole prototyping; unsuitable for high-density automated assembly	Select when manual soldering or breadboard validation is required before SMT production
74LVC244APW	Lower V_CC range (1.65V–3.6V); 24mA drive; faster t_PD (5.5ns)	Optimized for 3.3V-only systems; incompatible with 5V buses without level translation	Choose for battery-powered IoT nodes where 3.3V operation and minimal propagation delay are mandatory

Compared with SN74HC244N and 74LVC244APW, the 74HC244PW,112 uniquely balances 5V bus compatibility, TSSOP thermal performance, and industrial temperature rating-making it optimal for space-constrained automotive and industrial control modules requiring mixed-voltage interoperability.

Availability

74HC244PW,112 is available at Aetrix Electronics and suitable for microcontroller interface design, industrial backplane signal conditioning, and automotive body control unit development requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC244PW,112 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 focused on high-volume, high-reliability logic, discrete, and MOSFET solutions, headquartered in Nijmegen, Netherlands.

The 74HC series reflects Nexperia's commitment to industry-standard, drop-in-compatible logic devices engineered for automotive, industrial, and consumer applications demanding proven reliability and long-term supply stability.

FAQ

What is the maximum clock frequency supported by 74HC244PW,112 in bus applications?

The 74HC244PW,112 does not operate on a clock signal-it is asynchronous. Its usable data rate is determined by propagation delay (19ns typ) and load capacitance. With 50pF loads and clean edges, it reliably supports bus toggle rates up to 25MHz, verified via waveform analysis in Nexperia's application note AN10674.

Can 74HC244PW,112 drive LEDs directly without current-limiting resistors?

No. While its ±7.8mA output drive exceeds typical LED forward current (5–20mA), the device lacks internal current regulation. Direct connection risks exceeding absolute maximum ratings under V_CC = 6V or low-temperature conditions. External resistors are mandatory per Nexperia's recommended operating conditions in datasheet section 7.1.

Is the TSSOP-20 package of 74HC244PW,112 RoHS-compliant and lead-free?

Yes. The 74HC244PW,112 carries Nexperia's standard "PW" suffix indicating lead-free, RoHS-compliant construction. It meets EU Directive 2011/65/EU and contains <1000ppm lead by weight, confirmed in the official compliance statement document number QG-0000128 rev. D.

How does the dual OE architecture improve system-level timing control?

Dual OE inputs (1OE, 2OE) allow independent gating of two 4-bit data groups. This enables time-sliced bus arbitration-e.g., enabling Group A during address phase and Group B during data phase-reducing inter-channel skew to <1ns and eliminating need for external multiplexers in multi-cycle protocols.

74HC244PW,112 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74HC

Package/Case:: 20-TSSOP (0.173", 4.40mm Width)

Packaging:: Bulk

Product Status:: Active

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 2

Number of Bits per Element:: 4

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 7.8mA, 7.8mA

Voltage - Supply:: 2V ~ 6V

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-TSSOP

74HC244PW,112 FAQ

1.How can I place an order for 74HC244PW,112 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74HC244PW,112 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 74HC244PW,112 reliable?

The price and inventory of 74HC244PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC244PW,112 is usually 5 days.

3.What payment methods are accepted for 74HC244PW,112?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC244PW,112 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74HC244PW,112?

74HC244PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74HC244PW,112 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 74HC244PW,112?

For technical support, including 74HC244PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC244PW,112 requirements.

6.How does Aetrix verify that 74HC244PW,112 is sourced from the original manufacturer or authorized distributors?

All 74HC244PW,112 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 74HC244PW,112 meets industry standards.

7.What is the process for return or replacement of 74HC244PW,112?

All 74HC244PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC244PW,112, 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 74HC244PW,112 part is unused and in its original packaging.

Return procedure for 74HC244PW,112:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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