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

Diodes Incorporated PI74ALVCH162244AE

Name: PI74ALVCH162244AE
Brand: Diodes Incorporated
SKU: PI74ALVCH162244AE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PI74ALVCH162244AE

Manufacturer:: Diodes Incorporated

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 48-TFSOP (0.240", 6.10mm Width)

Datasheet:: PI74ALVCH162244AE.pdf

Description:: IC BUF NON-INVERT 3.6V 48TSSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

PI74ALVCH162244AE from Pericom Semiconductor is a 16-bit non-inverting 3-state buffer/driver IC designed for low-voltage bus interface applications. It operates from 2.3V to 3.6V V_CC, features Bus Hold on all inputs, symmetrical active-low OE controls, and integrated 26-Ω series output resistors-enabling direct connection to transmission lines without external termination. Used in memory address drivers, clock distribution, and high-density data buses in industrial embedded systems.

For engineers reviewing the PI74ALVCH162244AE datasheet, PI74ALVCH162244AE pinout, PI74ALVCH162244AE application, or PI74ALVCH162244AE equivalent, key selection criteria include 3-state drive capability, input hysteresis for noise immunity, V_CC operating range (2.3–3.6 V), Bus Hold functionality, and TSSOP-48 package compatibility with high-pin-count logic routing.

Technical Context

The PI74ALVCH162244AE implements four independent 4-bit non-inverting buffer sections, each with dedicated active-low output-enable (OE) control. All inputs include hysteresis to suppress noise-induced switching, and Bus Hold circuitry actively retains the last valid logic state when inputs float-eliminating external pull-up/down resistors.

Its output structure integrates 26-Ω series resistors to damp signal reflections, reducing ground bounce (V_OLP < 0.8 V at V_CC = 3.3 V) and undershoot (V_OHV < 2.0 V). Designed for 0.5 µm CMOS process, it delivers propagation delays as low as 3.6 ns (t_PY) under 50-pF load at 3.3 V.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	2.3 V to 3.6 V - supports mixed-voltage system interfacing with 2.5 V/3.3 V logic domains
Propagation Delay (t_PY)	3.6 ns max at V_CC = 3.3 V, CL = 50 pF - enables timing-critical bus buffering up to ~100 MHz
Bus Hold Current	±45 µA typical - maintains stable input state during tri-state or disconnected conditions
Output Series Resistor	26 Ω integrated - eliminates need for discrete series termination on PCB traces
Input Hysteresis	Present on all inputs - improves noise margin by ~300 mV, preventing chatter on slow-rising signals
Operating Temperature	–40°C to +85°C - qualified for industrial-grade embedded and communications equipment
Ground Bounce (V_OLP)	< 0.8 V at V_CC = 3.3 V - reduces simultaneous switching noise in dense logic layouts

Pinout & Package

PI74ALVCH162244AE is housed in a 48-pin plastic TSSOP (240 mil wide), JEDEC MO-153 compliant, with 0.5 mm pitch and exposed thermal pad (not electrically connected). Pin numbering follows standard counter-clockwise orientation from pin 1 (1OE) at top-left corner.

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE, 3OE, 4OE	Active-low output enable	Independent control per 4-bit section; must be pulled high via resistor during power-up to ensure 3-state default
1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3	Data inputs	16 total inputs with Bus Hold and hysteresis; tolerate floating states without external biasing
1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3	Non-inverting buffered outputs	16 outputs with integrated 26-Ω series resistance; drive 50-pF loads with controlled edge rates
V_CC (pins 9, 10, 40, 41)	Power supply	Four dedicated V_CC pins reduce IR drop and improve noise immunity across wide die
GND (pins 7, 8, 38, 39)	Ground reference	Four GND pins provide low-inductance return paths for switching currents

Key Features

Feature	Design Value
Bus Hold circuitry	Maintains last valid logic level on all inputs during high-impedance conditions-removes need for 10-kΩ pull-up/down resistors
Integrated 26-Ω output series resistors	Enables impedance-matched driving of PCB traces without discrete components, reducing layout complexity and BOM count
Hysteresis on all inputs	Provides ~300 mV noise margin, preventing false triggering from EMI or crosstalk on shared bus lines
Low ground bounce (V_OLP < 0.8 V)	Minimizes supply rail disturbance during simultaneous output switching-critical for mixed-signal system stability
Flexible partitioning	Configurable as one 16-bit, two 8-bit, or four 4-bit buffers-supports modular bus architecture design

Applications

Memory Address Buffering

Clock Distribution Network

Use Scenario: Driving address lines from a microcontroller to multiple SRAM or Flash devices in a space-constrained industrial controller.

IC Role / Device Role / Timing Role: Non-inverting 3-state buffer with Bus Hold ensures clean, glitch-free address propagation during chip select transitions.

Use Value: Eliminates external pull-ups on address lines and reduces propagation delay skew vs. discrete gate solutions.

Use Scenario: Fan-out of a single system clock to multiple peripherals (ADC, DAC, FPGA config logic) in an automated test instrument.

IC Role / Device Role / Timing Role: Low-skew, impedance-controlled clock driver with hysteresis-filtered inputs for robust edge integrity.

Use Value: Integrated 26-Ω resistors suppress ringing on 50-mm trace runs; t_PY ≤ 3.6 ns ensures sub-100 ps inter-channel skew.

High-Density Data Bus Interface

Industrial I/O Expansion Module

Use Scenario: Interfacing a 16-bit parallel data bus between an ARM-based host and isolated sensor acquisition module over 4-layer PCB.

IC Role / Device Role / Timing Role: Bidirectional-capable 3-state buffer section enabling time-multiplexed read/write control with OE-gated directionality.

Use Value: Four independent OE pins allow staggered enable sequencing to limit simultaneous switching current (SSO).

Use Scenario: Level-shifting and bus conditioning for digital I/O expansion in DIN-rail mounted PLC backplane with 2.5 V logic and 3.3 V field-side interfaces.

IC Role / Device Role / Timing Role: Voltage-tolerant buffer isolating field-side transients while maintaining logic compatibility across V_CC domains.

Use Value: Input voltage range extends to V_CC + 0.5 V, supporting safe interfacing with marginally overvoltage signals.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit non-inverting 3-state buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74ALVCH162244DGGR	TI part; identical pinout and function but no Bus Hold; requires external pull-up/down resistors on unused inputs	Lacks Bus Hold-unsuitable where input floating is unavoidable (e.g., hot-plug connectors)	Select if cost sensitivity outweighs need for input state retention and board space is available for discrete biasing.
74LVC162244APAG	IDT part; same V_CC range and 3-state behavior, but uses different hysteresis threshold and lacks integrated series resistors	Requires external 22–33 Ω series resistors for clean edge control; higher layout overhead	Prefer when legacy LVC family compliance is required and controlled impedance routing is already implemented.

Compared with SN74ALVCH162244DGGR and 74LVC162244APAG, PI74ALVCH162244AE uniquely combines Bus Hold, integrated 26-Ω outputs, and hysteresis in a single device-reducing component count by up to 16 resistors and improving reliability in noisy industrial environments.

Availability

PI74ALVCH162244AE is available at Aetrix Electronics and suitable for industrial control systems, automated test equipment, and high-reliability embedded data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for PI74ALVCH162244AE 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

Pericom Semiconductor (now part of Diodes Incorporated) was a fabless provider specializing in high-speed interface, timing, and logic solutions for communications and computing infrastructure.

The PI74ALVCH series targets low-voltage, high-density logic interfacing-designed specifically to replace older ALVT/ABT families with improved speed, noise immunity, and integration in 2.3–3.6 V systems.

FAQ

What is the purpose of the Bus Hold feature on PI74ALVCH162244AE?

Bus Hold actively retains the last valid logic state on each input when the driving source is disconnected or high-impedance. It draws ±45 µA typical holding current, eliminating the need for external pull-up or pull-down resistors-reducing BOM cost and PCB area while preventing undefined logic states in hot-swap or multiplexed bus scenarios.

Can PI74ALVCH162244AE operate at 2.5 V V_CC?

Yes. The device is fully specified from 2.3 V to 3.6 V, including DC and AC parameters at 2.5 V. Propagation delay increases to ~5.5 ns (vs. 3.6 ns at 3.3 V), and output drive strength scales linearly-ensuring reliable operation in mixed-voltage 2.5 V subsystems such as FPGA I/O banks or ASIC co-processors.

How should the OE pins be handled during power-up?

All OE pins must be held HIGH (V_CC) during power-up to guarantee outputs remain in high-impedance state until firmware initializes control logic. A 10-kΩ pull-up resistor per OE is recommended; minimum value depends on the driver's sink capability-Pericom specifies ≥10 kΩ for safe default 3-state behavior.

Does PI74ALVCH162244AE require external termination resistors?

No. Each output includes a factory-trimmed 26-Ω series resistor optimized for driving 50-pF loads on typical PCB traces. This eliminates discrete series termination, simplifies layout, and maintains signal integrity without additional components-verified by measured V_OLP < 0.8 V and V_OHV < 2.0 V at 3.3 V.

PI74ALVCH162244AE Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: 74ALVCH

Package/Case:: 48-TFSOP (0.240", 6.10mm Width)

Packaging:: Tube

Product Status:: Obsolete

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 4

Number of Bits per Element:: 4

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 12mA, 12mA

Voltage - Supply:: 2.3V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSSOP

PI74ALVCH162244AE FAQ

1.How can I place an order for PI74ALVCH162244AE through Aetrix?

Please submit a Request for Quotation (RFQ) for PI74ALVCH162244AE 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 PI74ALVCH162244AE reliable?

The price and inventory of PI74ALVCH162244AE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74ALVCH162244AE is usually 5 days.

3.What payment methods are accepted for PI74ALVCH162244AE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74ALVCH162244AE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PI74ALVCH162244AE?

PI74ALVCH162244AE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PI74ALVCH162244AE 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 PI74ALVCH162244AE?

For technical support, including PI74ALVCH162244AE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74ALVCH162244AE requirements.

6.How does Aetrix verify that PI74ALVCH162244AE is sourced from the original manufacturer or authorized distributors?

All PI74ALVCH162244AE 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 PI74ALVCH162244AE meets industry standards.

7.What is the process for return or replacement of PI74ALVCH162244AE?

All PI74ALVCH162244AE units undergo pre-shipment inspection (PSI). If there is an issue with PI74ALVCH162244AE, 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 PI74ALVCH162244AE part is unused and in its original packaging.

Return procedure for PI74ALVCH162244AE:

1.Submit a request within 90 days.

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

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