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

Texas Instruments CY74FCT162244TPACT

Name: CY74FCT162244TPACT
Brand: Texas Instruments
SKU: CY74FCT162244TPACT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY74FCT162244TPACT

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: CY74FCT162244TPACT.pdf

Description:: IC BUF NON-INVERT 5.5V 48TSSOP

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Product details

Overview

CY74FCT162244TPACT from Texas Instruments is a 16-bit non-inverting three-state buffer/line driver optimized for transmission-line driving, featuring balanced 24 mA output drivers, I_off partial-power-down support, edge-rate control for noise reduction, and operation across –40°C to +85°C at V_CC = 5 V ±10%. It serves as a bus interface device in memory and clock distribution systems.

For engineers reviewing the CY74FCT162244TPACT datasheet, CY74FCT162244TPACT pinout, CY74FCT162244TPACT application, or CY74FCT162244TPACT equivalent, key selection criteria include output drive symmetry (24 mA sink/source), ground bounce performance (<0.6 V typical VOLP), propagation delay (max 4.8 ns), TSSOP-48 package compatibility, and bus-noise mitigation via integrated current-limiting resistors.

Technical Context

This device implements four independent 4-bit groups of non-inverting buffers, each with dedicated active-low three-state enable (OE) inputs enabling flexible 4-, 8-, or full 16-bit bus control. Its flow-through pinout simplifies PCB layout and minimizes trace skew.

The CY74FCT162244TPACT uses FCT logic family architecture with TTL-compatible input thresholds (V_IL = 0.8 V, V_IH = 2.0 V), hysteresis (100 mV), and I_off circuitry that disables outputs and blocks reverse current when V_CC = 0 V - critical for hot-swap and partial-power-down systems.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Supply	5 V ±10% - compatible with standard 5-V TTL/CMOS systems without level-shifting
Output Drive	±24 mA - balanced sink/source capability eliminates need for external termination on transmission lines
Propagation Delay	Max 4.8 ns - enables high-speed bus interfacing up to ~200 MHz system timing margins
Ground Bounce (VOLP)	<0.6 V at V_CC = 5 V, T_A = 25°C - reduces signal integrity risk in dense multi-driver layouts
Operating Temperature	–40°C to +85°C - qualified for industrial-grade embedded and infrastructure applications
I_off Support	Active at V_CC = 0 V - prevents backflow current during power sequencing or partial shutdown
Input Hysteresis	100 mV - improves noise immunity on slow-rising or noisy control signals like OE

Pinout & Package

Package: 48-pin TSSOP (DGG), 240-mil body width, 0.5-mm pitch, 1.2-mm max height, JEDEC MO-153 compliant.

Pin/Terminal	Circuit Role	Design Meaning
1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 (Pins 1–4, 7–10, 13–16, 19–22)	Data Inputs	Four independent 4-bit input buses accepting TTL/CMOS logic levels
1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 (Pins 5–6, 11–12, 17–18, 23–24)	Three-State Outputs	Non-inverting buffered outputs with 24 mA drive; high-impedance when corresponding OE is HIGH
1OE, 2OE, 3OE, 4OE (Pins 25, 27, 37, 39)	Active-Low Output Enables	Per-group control: LOW enables 4 outputs; HIGH places them in high-Z state
V_CC (Pins 26, 38, 47)	Power Supply	Primary 5-V supply connection; three pins reduce IR drop and improve decoupling
GND (Pins 28, 36, 40, 48)	Ground	Four dedicated ground pins minimize ground bounce and improve signal return path integrity

Key Features

Feature	Design Value
Balanced ±24 mA output drivers	Enables matched rise/fall times and reduced EMI on controlled-impedance traces without external resistors
Edge-rate control circuitry	Actively limits slew rate to suppress simultaneous switching noise (SSN) in multi-bit parallel interfaces
I_off partial-power-down protection	Prevents damaging current flow from live buses into unpowered devices during power sequencing
Typical output skew < 250 ps	Ensures tight timing alignment across all 16 outputs - critical for synchronous bus capture
ESD rating > 2000 V (HBM)	Provides robust handling margin during board assembly and field service without extra protection components

Applications

Memory Address Buffering	Clock Distribution Network
Use Scenario: Driving address lines from a microcontroller to multiple SRAM or Flash devices sharing a common bus. IC Role / Device Role / Timing Role: Non-inverting 16-bit buffer providing fanout, noise isolation, and timing synchronization between controller and memory array. Use Value: Balanced 24 mA drive ensures clean signal edges across long traces; low output skew (<250 ps) maintains setup/hold timing across all address bits.	Use Scenario: Distributing a single system clock to multiple synchronous peripherals (e.g., ADCs, DACs, FPGAs) with matched delay paths. IC Role / Device Role / Timing Role: Low-skew, high-drive clock buffer replicating and isolating the source clock while preserving edge integrity. Use Value: Edge-rate control minimizes jitter accumulation; 4.8 ns max t_PLH/t_PHL supports ≤200 MHz clock distribution with deterministic latency.
Backplane Interface Driver	Industrial Bus Transceiver Support
Use Scenario: Interfacing a local processor bus to a high-capacitance, multi-drop backplane carrying control/status data over 10+ cm traces. IC Role / Device Role / Timing Role: Transmission-line driver with built-in current limiting to match characteristic impedance and suppress reflections. Use Value: Integrated 24 mA drivers eliminate discrete series resistors; <0.6 V ground bounce prevents false logic transitions under heavy switching load.	Use Scenario: Providing isolated, high-current drive for control signals (e.g., chip select, reset, interrupt) in programmable logic controllers (PLCs) or motor drives. IC Role / Device Role / Timing Role: Robust bus interface buffer ensuring reliable signal delivery across electrically noisy industrial environments. Use Value: I_off support enables safe hot-swap of modules; 2000 V HBM ESD rating withstands factory handling and field maintenance.

Memory Address Buffering

Clock Distribution Network

Use Scenario: Driving address lines from a microcontroller to multiple SRAM or Flash devices sharing a common bus.

IC Role / Device Role / Timing Role: Non-inverting 16-bit buffer providing fanout, noise isolation, and timing synchronization between controller and memory array.

Use Value: Balanced 24 mA drive ensures clean signal edges across long traces; low output skew (<250 ps) maintains setup/hold timing across all address bits.

Use Scenario: Distributing a single system clock to multiple synchronous peripherals (e.g., ADCs, DACs, FPGAs) with matched delay paths.

IC Role / Device Role / Timing Role: Low-skew, high-drive clock buffer replicating and isolating the source clock while preserving edge integrity.

Use Value: Edge-rate control minimizes jitter accumulation; 4.8 ns max t_PLH/t_PHL supports ≤200 MHz clock distribution with deterministic latency.

Backplane Interface Driver

Industrial Bus Transceiver Support

Use Scenario: Interfacing a local processor bus to a high-capacitance, multi-drop backplane carrying control/status data over 10+ cm traces.

IC Role / Device Role / Timing Role: Transmission-line driver with built-in current limiting to match characteristic impedance and suppress reflections.

Use Value: Integrated 24 mA drivers eliminate discrete series resistors; <0.6 V ground bounce prevents false logic transitions under heavy switching load.

Use Scenario: Providing isolated, high-current drive for control signals (e.g., chip select, reset, interrupt) in programmable logic controllers (PLCs) or motor drives.

IC Role / Device Role / Timing Role: Robust bus interface buffer ensuring reliable signal delivery across electrically noisy industrial environments.

Use Value: I_off support enables safe hot-swap of modules; 2000 V HBM ESD rating withstands factory handling and field maintenance.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
CY74FCT16244TPACT	Higher drive (64 mA sink / 32 mA source); no current-limiting resistors; higher ground bounce (~1.0 V)	Better suited for low-impedance backplanes or high-fanout loads requiring stronger drive	Select when absolute maximum drive strength outweighs noise sensitivity; requires external termination
CY74FCT162H244TPACT	Includes bus-hold inputs (no external pull-ups needed); identical 24 mA drive and noise performance	Preferred where input floating must be avoided (e.g., unconnected test points, intermittent connectors)	Choose when input stability without external components is required; same pinout and drive capability

Compared with CY74FCT162244TPACT, CY74FCT16244TPACT delivers greater current but increases system noise, while CY74FCT162H244TPACT adds bus-hold functionality without compromising drive or noise - making it a drop-in functional upgrade where input retention is critical.

Availability

CY74FCT162244TPACT is available at Aetrix Electronics and suitable for industrial control systems, memory subsystems, and clock distribution networks requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for CY74FCT162244TPACT 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.

CY74FCT162244TPACT belongs to TI's FCT logic family, engineered for high-speed, low-noise bus interface applications in industrial and infrastructure equipment where reliability, timing precision, and power sequencing robustness are essential.

FAQ

What is the maximum propagation delay for CY74FCT162244TPACT?

The maximum propagation delay (t_PLH/t_PHL) for CY74FCT162244TPACT is 4.8 ns over the full industrial temperature range (–40°C to +85°C) at V_CC = 5 V ±10%. This value is confirmed in the "Switching Characteristics" table of the official Texas Instruments datasheet (Document #: 38-00396-C). CY74FCT162244TPACT achieves this performance while maintaining balanced output drive and low ground bounce.

Does CY74FCT162244TPACT support partial power-down operation?

Yes, CY74FCT162244TPACT fully supports partial-power-down operation via its I_off circuitry. When V_CC = 0 V, the outputs enter a high-impedance state and block reverse current flow from powered buses - protecting both CY74FCT162244TPACT and connected devices. This feature is explicitly specified in the Functional Description and Electrical Characteristics sections of the TI datasheet.

What package type is used for CY74FCT162244TPACT?

CY74FCT162244TPACT is packaged in a 48-pin TSSOP (Thin Shrunk Small Outline Package), designated as DGG by Texas Instruments, with 0.5-mm pitch and 240-mil body width. This package is JEDEC MO-153 compliant and documented in TI's packaging addendum (DGG0048A). The "PACT" suffix in CY74FCT162244TPACT explicitly denotes the TSSOP variant.

How does CY74FCT162244TPACT reduce ground bounce compared to standard FCT buffers?

CY74FCT162244TPACT reduces ground bounce through two integrated design features: (1) current-limiting resistors in its 24 mA balanced output drivers, and (2) edge-rate control circuitry that moderates slew rate. These features jointly limit peak transient current, resulting in typical VOLP < 0.6 V at V_CC = 5 V and T_A = 25°C - significantly lower than the 1.0 V typical for CY74FCT16244TPACT. This specification is verified in the "Features" and "Output Drive Characteristics" sections of the datasheet.

Can CY74FCT162244TPACT be used as a direct replacement for CY74FCT162H244TPACT?

No - CY74FCT162244TPACT is not a direct replacement for CY74FCT162H244TPACT because the latter includes bus-hold circuitry on all data inputs, while CY74FCT162244TPACT does not. Bus-hold eliminates the need for external pull-up/down resistors and retains the last valid input state during high-impedance conditions. Since this function is absent in CY74FCT162244TPACT, substituting it may cause floating inputs and undefined behavior unless external biasing is added.

CY74FCT162244TPACT Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74FCT

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

Packaging:: Tape & Reel (TR)

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:: 4.5V ~ 5.5V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSSOP

CY74FCT162244TPACT FAQ

1.How can I place an order for CY74FCT162244TPACT through Aetrix?

Please submit a Request for Quotation (RFQ) for CY74FCT162244TPACT 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 CY74FCT162244TPACT reliable?

The price and inventory of CY74FCT162244TPACT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT162244TPACT is usually 5 days.

3.What payment methods are accepted for CY74FCT162244TPACT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT162244TPACT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY74FCT162244TPACT?

CY74FCT162244TPACT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY74FCT162244TPACT 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 CY74FCT162244TPACT?

For technical support, including CY74FCT162244TPACT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT162244TPACT requirements.

6.How does Aetrix verify that CY74FCT162244TPACT is sourced from the original manufacturer or authorized distributors?

All CY74FCT162244TPACT 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 CY74FCT162244TPACT meets industry standards.

7.What is the process for return or replacement of CY74FCT162244TPACT?

All CY74FCT162244TPACT units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT162244TPACT, 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 CY74FCT162244TPACT part is unused and in its original packaging.

Return procedure for CY74FCT162244TPACT:

1.Submit a request within 90 days.

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

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