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

Diodes Incorporated PI74LPT16244AE

Name: PI74LPT16244AE
Brand: Diodes Incorporated
SKU: PI74LPT16244AE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PI74LPT16244AE

Manufacturer:: Diodes Incorporated

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: PI74LPT16244AE.pdf

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

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Product details

Overview

PI74LPT16244AE from Pericom Semiconductor is a 3.3V, 16-bit non-inverting buffer/line driver with quad-nibble/dual-byte/16-bit configurable 3-state control, ±24mA balanced output drive, 5V-tolerant inputs/outputs, and operation from 2.7V to 3.6V supply. It drives high-capacitance memory buses and on-board transmission lines while minimizing ground bounce and EMI.

For engineers reviewing the PI74LPT16244AE datasheet, PI74LPT16244AE pinout, PI74LPT16244AE application, or PI74LPT16244AE equivalent, key selection criteria include 3-state enable timing (tPZH/tPHZ ≤ 7.0 ns), input hysteresis for noise immunity, industrial temperature range (–40°C to +85°C), and mixed-voltage translation capability between 3.3V and 5.0V systems.

Technical Context

This device implements four independent 4-bit buffers, each with dedicated active-low 3-state enable (xOE) and non-inverting logic path. Its advanced low-power CMOS process enables balanced sourcing and sinking (±24mA), reducing signal reflections and improving transmission line matching.

Input hysteresis ensures robust noise rejection on control and data lines. The 48-pin TSSOP-A package features distributed V_CC/GND pins and multiple center GND pins to suppress switching noise-critical for high-speed bus driving in memory subsystems and backplane interfaces.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	2.7V to 3.6V - supports stable operation across 3.3V rail tolerances and brown-out conditions
Output Drive	±24mA - provides sufficient current to drive 50Ω transmission lines and ≥50pF capacitive loads without external termination
Propagation Delay	1.5–5.2ns (CL = 50pF) - enables >100MHz bus operation with deterministic timing margins
3-State Enable Time	1.5–7.0ns - allows fast bus arbitration and multi-drop contention management
Input Voltage Range	–0.5V to +7.0V - permits direct interfacing with 5V logic without level-shifting circuitry
Operating Temperature	–40°C to +85°C - qualified for industrial-grade embedded and telecom equipment environments
Input Hysteresis	Present on all inputs - rejects up to ~300mV of common-mode noise on control and data signals

Pinout & Package

Package: 48-pin 240-mil wide thin plastic TSSOP (A), Pb-free & Green compliant, with distributed power/ground pins and thermal pad not electrically connected.

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE, 3OE, 4OE	Active-low 3-state enable inputs	Individually control 4-bit nibbles; enable/disable outputs without affecting internal logic state
1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3	Data inputs (16 total)	Non-inverting inputs mapped 1:1 to corresponding Y outputs; support TTL- and CMOS-level signals
1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3	3-state buffered outputs (16 total)	Drive heavy capacitive loads with matched rise/fall times; tolerate 5V bus connections
V_CC (Pins 8, 21, 34, 47)	Power supply	Four dedicated V_CC pins reduce IR drop and improve transient response during simultaneous switching
GND (Pins 4, 11, 18, 25, 32, 39)	Ground reference	Six GND pins-including center-located and distributed-minimize ground bounce and crosstalk

Key Features

Feature	Design Value
5V-tolerant I/O	Inputs accept 0–5.5V; outputs safely drive 5V buses while powered from 3.3V - eliminates external translators in mixed-voltage designs
Balanced ±24mA drive	Matched sourcing/sinking capability ensures symmetrical edge rates and reduced EMI on high-speed traces
Hysteresis on all inputs	Improves noise margin by ~300mV on enable and data lines - critical for noisy industrial backplanes
Distributed V_CC/GND layout	Four V_CC and six GND pins suppress simultaneous switching noise - maintains signal integrity at >100MHz toggle rates

Applications

Memory Subsystem Bus Driver

Industrial Backplane Interface

Use Scenario: Driving address/data/control lines between FPGA and DDR SDRAM or SRAM modules on dense PCBs with >50pF net capacitance.

IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing level translation, fanout expansion, and transmission-line termination matching.

Use Value: Eliminates need for discrete resistive termination and external level shifters while maintaining <5.2ns propagation delay and <0.5ns output skew.

Use Scenario: Interfacing PLC CPU modules to I/O expansion cards over 15cm routed backplane traces with 60Ω characteristic impedance.

IC Role / Device Role / Timing Role: High-drive bus transceiver enabling hot-swap-safe 3-state control and noise-immune signal routing.

Use Value: Input hysteresis and low ground bounce ensure reliable operation in electrically noisy factory environments with >2kV ESD events.

Mixed-Voltage System Translator

Telecom Line Card Signal Conditioning

Use Scenario: Bridging legacy 5V peripheral controllers to modern 3.3V ASICs in base station control planes.

IC Role / Device Role / Timing Role: Voltage-level translator with direction-agnostic bidirectional capability via 3-state control.

Use Value: Single-supply 3.3V operation with full 5V input tolerance removes isolated power rails and reduces BOM count by one DC/DC converter.

Use Scenario: Buffering clock and frame-sync signals across daughterboard connectors in modular optical line terminals.

IC Role / Device Role / Timing Role: Low-skew, low-jitter repeater for 10–50MHz timing distribution networks.

Use Value: Output skew ≤0.5ns and propagation delay variation <1ns across all 16 channels maintain tight setup/hold timing for SONET/SDH framing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit buffer/line driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC16244ADGGR	Lower drive (±24mA same), but only 3.6V max V_CC; no 5V-tolerant outputs - requires external clamping for 5V bus connection	Best suited for pure 3.3V systems; unsuitable where outputs connect directly to 5V nets	Select when cost sensitivity outweighs mixed-voltage flexibility and board space allows clamping diodes
74ALVC16244PW	Higher speed (t_PD ≤ 3.8ns), but narrower V_CC range (2.3–3.6V); no input hysteresis - more susceptible to noise on long traces	Ideal for high-speed, low-noise PCB layouts with short trace lengths and clean power	Prefer when maximum toggle rate (>150MHz) is required and system-level noise is tightly controlled

Compared with SN74LVC16244ADGGR and 74ALVC16244PW, the PI74LPT16244AE uniquely combines 5V-tolerant I/O, input hysteresis, and distributed power/ground pins - making it the only option among the three qualified for unmodified use in noisy, mixed-voltage industrial backplanes.

Availability

PI74LPT16244AE is available at Aetrix Electronics and suitable for memory subsystem design, industrial backplane interconnect, and mixed-voltage translation applications requiring stable component supply and long-term lifecycle support.

Supply support for PI74LPT16244AE 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 was a fabless provider of high-speed interface, timing, and signal-integrity solutions, acquired by Diodes Incorporated in 2017; its legacy products remain widely deployed in industrial and telecom infrastructure.

The PI74LPT16244AE belongs to the LPT (Low Power TTL-compatible) family, engineered specifically for high-drive, low-noise bus interfacing in memory and backplane applications where signal integrity and voltage translation are critical.

FAQ

Can PI74LPT16244AE operate with a 2.5V supply?

No. The device is specified for 2.7V to 3.6V operation per DC Electrical Characteristics. At 2.5V, VIH minimum (2.2V) and VOH performance fall outside guaranteed limits, risking logic misreads and marginal output swing. Operation below 2.7V is not characterized or supported.

Is the PI74LPT16244AE pin-compatible with standard 74LVC16244 devices?

Yes - it uses industry-standard double-density 48-pin TSSOP pinout (Package Code A). Pin functions match identically: xOE enables, xAx inputs, xYx outputs, with identical V_CC/GND placement. No PCB redesign is needed for drop-in replacement in existing LVC16244 footprints.

What is the maximum capacitive load this device can drive reliably?

The device is characterized for CL = 50pF in switching specs, but its ±24mA drive supports sustained operation into ≥100pF loads at reduced edge rates. For 100pF, t_PLH/t_PHL increases ~30% versus 50pF - verified in Pericom's application note AN-204 for memory bus loading.

Does PI74LPT16244AE support hot-plug insertion?

Yes - its 5V-tolerant inputs and outputs, combined with 3-state control and low ground bounce, allow safe insertion into live 5V buses. However, hot-plug sequencing must ensure xOE remains HIGH (disabled) until power and reference voltages stabilize, per Pericom's PS2067H design guidelines.

PI74LPT16244AE Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: 74LPT

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:: 24mA, 24mA

Voltage - Supply:: 2.7V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSSOP

PI74LPT16244AE FAQ

1.How can I place an order for PI74LPT16244AE through Aetrix?

Please submit a Request for Quotation (RFQ) for PI74LPT16244AE 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 PI74LPT16244AE reliable?

The price and inventory of PI74LPT16244AE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74LPT16244AE is usually 5 days.

3.What payment methods are accepted for PI74LPT16244AE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74LPT16244AE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PI74LPT16244AE?

PI74LPT16244AE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PI74LPT16244AE 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 PI74LPT16244AE?

For technical support, including PI74LPT16244AE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74LPT16244AE requirements.

6.How does Aetrix verify that PI74LPT16244AE is sourced from the original manufacturer or authorized distributors?

All PI74LPT16244AE 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 PI74LPT16244AE meets industry standards.

7.What is the process for return or replacement of PI74LPT16244AE?

All PI74LPT16244AE units undergo pre-shipment inspection (PSI). If there is an issue with PI74LPT16244AE, 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 PI74LPT16244AE part is unused and in its original packaging.

Return procedure for PI74LPT16244AE:

1.Submit a request within 90 days.

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

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