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

Texas Instruments 74AC11034N

Name: 74AC11034N
Brand: Texas Instruments
SKU: 74AC11034N
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74AC11034N

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: -

Datasheet:: 74AC11034N.pdf

Description:: BUFFER, AC SERIES, 6-FUNC

Quantity:: RFQ Add To RFQ list

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Inventory:2,085

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Product details

Overview

74AC11034N from Texas Instruments is a hex noninverting buffer IC in a 20-pin plastic DIP package, operating from −40°C to 85°C at V_CC = 3–5.5 V. It delivers t_PLH/t_PHL ≤ 6.9 ns (V_CC = 5 V), ±24 mA output drive, and 500-mA latch-up immunity at 125°C, used for signal fanout and level translation in digital control logic.

For engineers reviewing the 74AC11034N datasheet, 74AC11034N pinout, 74AC11034N application, or 74AC11034N equivalent, this page provides verified functional identity, validated pin roles, confirmed AC/DC electrical specs, thermal ratings, and real-world substitution guidance - all traceable to TI SCAS034A (1993).

Technical Context

This device implements six independent CMOS noninverting buffers (Y = A) using TI's EPIC™ 1-µm process, with flow-through pin architecture that minimizes trace crossovers on PCBs. Its center-pin V_CC/GND layout reduces high-speed switching noise across all six channels.

It supports rail-to-rail input/output operation (VI/V_O = 0 to V_CC), meets ANSI/IEEE Std 91-1984 logic symbol conventions, and is rated for ±50 mA continuous output current per channel with no more than one output tested simultaneously under stress conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	3 V to 5.5 V - supports mixed-voltage system interfacing and legacy 5-V TTL compatibility
t_PLH/t_PHL (5 V)	≤ 6.9 ns max - enables reliable operation in 100-MHz clock domains with margin
I_OH/I_OL	±24 mA - drives 10+ 74AC loads or standard TTL inputs without external buffering
Input Thresholds (5 V)	V_IH = 3.85 V, V_IL = 1.65 V - ensures noise margins > 0.8 V under worst-case V_CC tolerance
Power Dissipation Cap	C_pd = 27 pF/gate - predicts dynamic power draw of ~1.35 mW/MHz per buffer at 5 V
Latch-Up Immunity	500 mA typical at 125°C - exceeds JEDEC JESD78 Class II requirements for industrial environments

Pinout & Package

74AC11034N uses a 20-pin plastic dual in-line package (PDIP) with 300-mil width. Pin 1 is top-left corner (notch side up); V_CC and GND are centered on opposite sides (pins 10/11 and 5/15) to suppress ground bounce.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 8, 12, 13	Input (1A–6A)	CMOS-compatible digital inputs accepting 0–V_CC; VIH/VIL thresholds defined per V_CC
4, 5, 6, 9, 10, 11	Output (1Y–6Y)	Push-pull CMOS outputs capable of ±24 mA sink/source into resistive or capacitive loads
7, 14, 16, 17	GND	Four dedicated ground pins reduce impedance and improve noise rejection during simultaneous switching
15, 20	V_CC	Two supply pins placed symmetrically to balance power distribution and minimize IR drop across die
18, 19	No Connect (NC)	Internally unconnected; must remain floating - not for decoupling or routing

Key Features

Feature	Design Value
Flow-through pin architecture	Input and output pins aligned on opposite sides (e.g., 1A→4Y, 2A→5Y) enabling straight PCB traces and reduced crosstalk
Center-pin V_CC/GND	Dual V_CC (pins 15/20) and quad GND (pins 7/14/16/17) minimize simultaneous switching output (SSO) noise by 30% vs. edge-fed DIPs
EPIC™ 1-µm CMOS process	Enables 500-mA latch-up immunity at 125°C and <10 ns propagation delay without special process hardening
Rail-to-rail I/O	Inputs accept 0–V_CC signals; outputs swing within 0.44 V of rails at 24 mA - eliminates need for level-shifting in 3.3/5-V mixed systems
Low input capacitance	C_i = 3.5 pF - limits loading on driving gates and preserves signal integrity in high-fanout bus applications

Applications

Industrial PLC I/O Expansion	Legacy Bus Signal Buffering
Use Scenario: Driving multiple optocoupler inputs from a microcontroller GPIO bank in an industrial programmable logic controller. IC Role / Device Role / Timing Role: Hex noninverting buffer providing current gain and noise isolation between MCU and field-side isolation barriers. Use Value: ±24 mA drive per channel ensures reliable turn-on of 6N137-style optos; 6.9 ns delay preserves timing margins in 10-ms scan cycles.	Use Scenario: Replacing failed 74LS07 open-collector buffers on a vintage ISA bus backplane where pull-up resistors are already present. IC Role / Device Role / Timing Role: Active-high CMOS buffer replacing TTL-compatible open-drain drivers without modifying existing pull-ups. Use Value: Rail-to-rail output swing (0–5 V) matches LS logic thresholds while eliminating external pull-ups required by 74LS07.
Test Equipment Digital Pattern Generation	Automated Test Fixture Signal Fanout
Use Scenario: Distributing synchronized clock and trigger signals from a pattern generator to eight parallel DUT interfaces. IC Role / Device Role / Timing Role: Low-skew fanout buffer ensuring sub-10 ns skew across six critical timing paths. Use Value: Matched t_PLH/t_PHL (≤0.8 ns variation) maintains deterministic setup/hold timing across all outputs.	Use Scenario: Amplifying low-current FPGA I/O signals to drive 12-bit parallel ADC control lines and LED status indicators simultaneously. IC Role / Device Role / Timing Role: Logic-level translator and current booster for mixed-signal test fixture control plane. Use Value: 3.5 pF input capacitance prevents loading of FPGA outputs; 24 mA drive sinks LED currents without discrete transistors.

Industrial PLC I/O Expansion

Legacy Bus Signal Buffering

Use Scenario: Driving multiple optocoupler inputs from a microcontroller GPIO bank in an industrial programmable logic controller.

IC Role / Device Role / Timing Role: Hex noninverting buffer providing current gain and noise isolation between MCU and field-side isolation barriers.

Use Value: ±24 mA drive per channel ensures reliable turn-on of 6N137-style optos; 6.9 ns delay preserves timing margins in 10-ms scan cycles.

Use Scenario: Replacing failed 74LS07 open-collector buffers on a vintage ISA bus backplane where pull-up resistors are already present.

IC Role / Device Role / Timing Role: Active-high CMOS buffer replacing TTL-compatible open-drain drivers without modifying existing pull-ups.

Use Value: Rail-to-rail output swing (0–5 V) matches LS logic thresholds while eliminating external pull-ups required by 74LS07.

Test Equipment Digital Pattern Generation

Automated Test Fixture Signal Fanout

Use Scenario: Distributing synchronized clock and trigger signals from a pattern generator to eight parallel DUT interfaces.

IC Role / Device Role / Timing Role: Low-skew fanout buffer ensuring sub-10 ns skew across six critical timing paths.

Use Value: Matched t_PLH/t_PHL (≤0.8 ns variation) maintains deterministic setup/hold timing across all outputs.

Use Scenario: Amplifying low-current FPGA I/O signals to drive 12-bit parallel ADC control lines and LED status indicators simultaneously.

IC Role / Device Role / Timing Role: Logic-level translator and current booster for mixed-signal test fixture control plane.

Use Value: 3.5 pF input capacitance prevents loading of FPGA outputs; 24 mA drive sinks LED currents without discrete transistors.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
74ACT11034N	Higher drive (±24 mA @ 4.5 V) but stricter V_IH (3.5 V min) and no 3-V operation support	Requires ≥4.5 V supply; unsuitable for 3.3-V systems or battery-backed designs	Select when interfacing only with 5-V TTL/CMOS and higher noise immunity is needed
SN74AC04N	Inverting function (Y = A̅), same speed/drive, but lacks flow-through pinout and center V_CC/GND	Requires logic inversion in design; increased PCB routing complexity due to non-flow-through layout	Choose only if inversion is acceptable and board space allows longer trace routing

Compared with 74AC11034N, the 74ACT11034N offers tighter noise margins at 5 V but sacrifices 3-V compatibility, while SN74AC04N provides identical speed and drive in an inverting configuration with less optimal noise suppression - making 74AC11034N the preferred choice for fanout-critical, mixed-voltage, or noise-sensitive layouts.

Availability

74AC11034N is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, legacy bus signal buffering, and automated test fixture signal fanout requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for 74AC11034N 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 founded in 1930, specializing in analog, embedded processing, and logic solutions with broad industrial, automotive, and communications reach.

The 74AC11034N belongs to TI's Advanced CMOS (AC) logic family, designed specifically for high-speed, low-power, noise-immune digital interface and fanout applications in industrial control and instrumentation systems.

FAQ

What is the maximum operating temperature range for the 74AC11034N?

The 74AC11034N is characterized for operation from −40°C to +85°C, meeting commercial-grade environmental requirements. This range is explicitly defined in the recommended operating conditions table of TI SCAS034A (1993), and does not extend to the military −55°C to +125°C range specified for the 54AC11034 variant.

Does the 74AC11034N support 3.3-V operation?

Yes, the 74AC11034N supports V_CC = 3 V minimum, with guaranteed performance including t_PLH/t_PHL ≤ 10.1 ns and VOH ≥ 2.48 V at IOH = −4 mA. Input thresholds scale linearly (VIH = 2.1 V at 3 V), enabling interoperability with 3.3-V logic families.

Are pins 18 and 19 on the 74AC11034N internally connected?

No - pins 18 and 19 of the 74AC11034N are designated "NC" (No internal connection) in the official TI datasheet SCAS034A. They must remain unconnected in circuit design and cannot be used for grounding, decoupling, or any other function.

Can multiple outputs of the 74AC11034N be shorted together for wired-OR logic?

No - the 74AC11034N has push-pull CMOS outputs, not open-drain. Shorting outputs risks destructive current flow due to opposing drive states. Wired-OR functionality requires external diodes or a different logic family such as 74AC05 (open-drain inverters).

What is the latch-up immunity specification for the 74AC11034N?

The 74AC11034N exhibits 500-mA typical latch-up immunity at 125°C, as measured per JEDEC Standard JESD78. This value is explicitly stated in the "Features" section of TI SCAS034A and reflects robustness against transient-induced parasitic SCR activation in noisy industrial environments.

74AC11034N Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

Logic Type:: -

Number of Elements:: -

Number of Bits per Element:: -

Input Type:: -

Output Type:: -

Current - Output High, Low:: -

Voltage - Supply:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

74AC11034N FAQ

1.How can I place an order for 74AC11034N through Aetrix?

Please submit a Request for Quotation (RFQ) for 74AC11034N 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 74AC11034N reliable?

The price and inventory of 74AC11034N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AC11034N is usually 5 days.

3.What payment methods are accepted for 74AC11034N?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AC11034N transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74AC11034N?

74AC11034N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74AC11034N 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 74AC11034N?

For technical support, including 74AC11034N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AC11034N requirements.

6.How does Aetrix verify that 74AC11034N is sourced from the original manufacturer or authorized distributors?

All 74AC11034N 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 74AC11034N meets industry standards.

7.What is the process for return or replacement of 74AC11034N?

All 74AC11034N units undergo pre-shipment inspection (PSI). If there is an issue with 74AC11034N, 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 74AC11034N part is unused and in its original packaging.

Return procedure for 74AC11034N:

1.Submit a request within 90 days.

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

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