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

Texas Instruments CY74FCT16244ATPACT

Name: CY74FCT16244ATPACT
Brand: Texas Instruments
SKU: CY74FCT16244ATPACT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY74FCT16244ATPACT

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: CY74FCT16244ATPACT.pdf

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

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Product details

Overview

CY74FCT16244ATPACT from Texas Instruments is a 16-bit non-inverting three-state buffer/line driver designed for high-speed memory and bus interface applications. It delivers 64 mA sink and 32 mA source output drive, supports partial-power-down via I_off, operates at 5V ±10%, and features typical output skew <250 ps. It is used in industrial backplane drivers requiring robust low-impedance signal integrity.

For engineers reviewing the CY74FCT16244ATPACT datasheet, CY74FCT16244ATPACT pinout, CY74FCT16244ATPACT application, or CY74FCT16244ATPACT equivalent, key selection criteria include output drive strength (64 mA sink), propagation delay (1.5–4.8 ns), I_off support for power sequencing, TSSOP-48 package compatibility, and industrial temperature range (–40°C to +85°C).

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-/16-bit bus control. Its flow-through pinout minimizes PCB trace length and crosstalk in dense routing environments.

The CY74FCT16244ATPACT uses FCT logic family architecture with edge-rate control circuitry to suppress switching noise and ground bounce (typical V_OLP <1.0 V). It is fully specified for partial-power-down operation: when V_CC = 0 V, I_off limits reverse current to ±1 µA, preventing backflow damage during hot insertion or mixed-voltage system power sequencing.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Supply	5 V ±10% - compatible with standard TTL/CMOS 5-V systems without level translation
Output Drive	64 mA sink / 32 mA source - drives high-capacitance backplanes and unterminated transmission lines
Propagation Delay	1.5–4.8 ns - enables timing-critical memory and clock distribution up to ~200 MHz
I_off	±1 µA at V_CC = 0 V - ensures safe partial-power-down and hot-swap capability
Output Skew	<250 ps - maintains signal alignment across all 16 outputs for synchronous bus interfaces
ESD Rating	>2000 V HBM - meets industrial handling and board-level ESD immunity requirements
Operating Temp	–40°C to +85°C - qualified for extended industrial environment deployment

Pinout & Package

TSSOP-48 (DGG package, 0.5 mm pitch, 12.6 × 6.2 mm body, 1.2 mm max height) with flow-through pin arrangement optimized for minimal layer count and reduced crosstalk.

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE, 3OE, 4OE	Active-low output enable	Independent control per 4-bit group; enables granular bus partitioning and power gating
1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4	Data inputs	Non-inverting input terminals for each buffer section; TTL-compatible thresholds (V_IL ≤ 0.8 V, V_IH ≥ 2.0 V)
1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4	Three-state outputs	High-drive buffered outputs; enter high-impedance state when corresponding OE = HIGH
V_CC (Pins 24, 48)	Power supply	Dual V_CC pins reduce supply inductance and improve transient response across wide output switching
GND (Pins 1, 25)	Ground reference	Dual GND pins provide low-inductance return path, critical for minimizing ground bounce (V_OLP <1.0 V)

Key Features

Feature	Design Value
I_off partial-power-down	Prevents damaging current backflow when V_CC is unpowered - essential for hot-plug and multi-rail sequencing
Edge-rate controlled outputs	Reduces simultaneous switching noise (SSN) and electromagnetic interference (EMI) in high-density layouts
Flow-through pinout	Input-to-output signal path runs linearly across package - simplifies PCB routing and reduces stub length
Low ground bounce (V_OLP)	Typical <1.0 V at V_CC = 5 V - preserves logic margin under heavy capacitive loading
Industrial temperature range	–40°C to +85°C operation - validated for use in factory automation, telecom infrastructure, and embedded control

Applications

Memory Address Buffering	Backplane Signal Driver
Use Scenario: Driving address lines from microcontroller to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Non-inverting 16-bit buffer with independent 4-bit enables synchronizing address propagation across memory banks. Use Value: 4.8 ns max propagation delay and <250 ps output skew ensure setup/hold timing margins are maintained across all address bits.	Use Scenario: Transmitting parallel control signals across a 16-bit industrial backplane with >50 pF/cm trace capacitance. IC Role / Device Role / Timing Role: High-current line driver delivering 64 mA sink to overcome distributed capacitance and maintain signal rise/fall times. Use Value: Robust 64 mA sink capability sustains logic levels under 100+ pF load, eliminating need for external series termination.
Programmable Logic Interface	Legacy Bus Isolation
Use Scenario: Interfacing FPGA I/O banks to legacy 5-V TTL peripherals with mismatched drive strength. IC Role / Device Role / Timing Role: Level-shifting buffer providing 5-V tolerant inputs and strong 5-V CMOS outputs compatible with FPGA I/O voltage domains. Use Value: TTL-compatible input thresholds (V_IL/V_IH) and 32 mA source drive enable reliable handshake signaling without external pull-ups.	Use Scenario: Isolating aging ISA or VME bus segments during system upgrades while preserving signal integrity. IC Role / Device Role / Timing Role: Three-state bus buffer enabling dynamic segmentation and fault containment between bus sections. Use Value: Independent OE controls allow selective activation of bus segments, preventing contention during hot-swap maintenance.

Memory Address Buffering

Backplane Signal Driver

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

IC Role / Device Role / Timing Role: Non-inverting 16-bit buffer with independent 4-bit enables synchronizing address propagation across memory banks.

Use Value: 4.8 ns max propagation delay and <250 ps output skew ensure setup/hold timing margins are maintained across all address bits.

Use Scenario: Transmitting parallel control signals across a 16-bit industrial backplane with >50 pF/cm trace capacitance.

IC Role / Device Role / Timing Role: High-current line driver delivering 64 mA sink to overcome distributed capacitance and maintain signal rise/fall times.

Use Value: Robust 64 mA sink capability sustains logic levels under 100+ pF load, eliminating need for external series termination.

Programmable Logic Interface

Legacy Bus Isolation

Use Scenario: Interfacing FPGA I/O banks to legacy 5-V TTL peripherals with mismatched drive strength.

IC Role / Device Role / Timing Role: Level-shifting buffer providing 5-V tolerant inputs and strong 5-V CMOS outputs compatible with FPGA I/O voltage domains.

Use Value: TTL-compatible input thresholds (V_IL/V_IH) and 32 mA source drive enable reliable handshake signaling without external pull-ups.

Use Scenario: Isolating aging ISA or VME bus segments during system upgrades while preserving signal integrity.

IC Role / Device Role / Timing Role: Three-state bus buffer enabling dynamic segmentation and fault containment between bus sections.

Use Value: Independent OE controls allow selective activation of bus segments, preventing contention during hot-swap 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
CY74FCT162244ATPACT	24 mA balanced drive (sink/source), lower ground bounce (V_OLP <0.6 V), no I_off support	Better suited for transmission-line driving with controlled impedance; not suitable for partial-power-down systems	Select when driving matched-impedance lines and ground bounce is critical; avoid where hot-swap or multi-rail sequencing is required
CY74FCT162H244ATPACT	24 mA drive with bus-hold inputs (no external pull resistors needed), same I_off support	Eliminates floating inputs in unused bus states; adds input state retention but reduces maximum drive strength	Select when bus inputs may float during reset or standby; trade-off is 24 mA vs. 64 mA sink capability

Compared with CY74FCT162244ATPACT and CY74FCT162H244ATPACT, the CY74FCT16244ATPACT uniquely combines highest sink drive (64 mA), I_off-enabled power sequencing, and industrial-grade noise control - making it optimal for backplane and memory subsystems demanding both strength and robustness.

Availability

CY74FCT16244ATPACT is available at Aetrix Electronics and suitable for industrial backplane drivers, memory subsystem buffering, and programmable logic interfacing requiring stable component supply and long-term lifecycle continuity.

Supply support for CY74FCT16244ATPACT 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 logic solutions for industrial, automotive, and communications markets.

The CY74FCT16244ATPACT belongs to TI's FCT logic family, engineered for high-speed, low-noise 5-V bus interface applications where timing precision, drive strength, and power sequencing reliability are critical.

FAQ

What is the maximum output sink current specification for CY74FCT16244ATPACT?

The CY74FCT16244ATPACT is rated for 64 mA maximum sink current per output pin under specified conditions (V_CC = minimum, V_OL ≤ 0.55 V). This value is guaranteed across the full industrial temperature range and enables direct driving of high-capacitance loads without external buffers. The CY74FCT16244ATPACT achieves this using optimized FCT output stage design with low on-resistance and thermal derating curves validated per JEDEC standards.

Does CY74FCT16244ATPACT support partial-power-down operation?

Yes, CY74FCT16244ATPACT includes I_off circuitry that disables outputs and limits reverse current to ±1 µA when V_CC = 0 V. This feature allows safe operation in systems with staggered power-up/down sequences, such as hot-pluggable modules or multi-voltage domain boards. The I_off behavior is explicitly characterized and tested per the datasheet, ensuring CY74FCT16244ATPACT remains protected even when downstream circuitry remains powered.

What package type and dimensions does CY74FCT16244ATPACT use?

CY74FCT16244ATPACT is packaged in a 48-pin TSSOP (DGG) with 0.5 mm pitch, 12.6 mm × 6.2 mm body size, and maximum height of 1.2 mm. Its flow-through pinout places inputs on one side and outputs on the opposite side, reducing PCB layer count and crosstalk. The package complies with JEDEC MO-153 and includes dual V_CC and GND pins for improved power integrity - a key layout advantage confirmed in the CY74FCT16244ATPACT mechanical drawings.

How does CY74FCT16244ATPACT differ from CY74FCT162244ATPACT?

CY74FCT16244ATPACT provides higher output drive (64 mA sink vs. 24 mA), lacks bus-hold inputs, and retains I_off support - whereas CY74FCT162244ATPACT offers balanced 24 mA drive with lower ground bounce but no I_off. The CY74FCT16244ATPACT is optimized for heavy capacitive loads and power-sequenced systems; CY74FCT162244ATPACT targets controlled-impedance transmission lines. Both share identical TSSOP-48 packaging and speed grade (4.8 ns).

What is the operating temperature range for CY74FCT16244ATPACT?

CY74FCT16244ATPACT is specified for industrial operation from –40°C to +85°C ambient temperature. All electrical parameters - including propagation delay (1.5–4.8 ns), output drive, I_off, and noise characteristics - are guaranteed across this full range. This qualification makes CY74FCT16244ATPACT suitable for deployment in factory automation controllers, base station equipment, and other harsh-environment applications where thermal stability is mandatory.

CY74FCT16244ATPACT 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:: 32mA, 64mA

Voltage - Supply:: 4.5V ~ 5.5V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSSOP

CY74FCT16244ATPACT FAQ

1.How can I place an order for CY74FCT16244ATPACT through Aetrix?

Please submit a Request for Quotation (RFQ) for CY74FCT16244ATPACT 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 CY74FCT16244ATPACT reliable?

The price and inventory of CY74FCT16244ATPACT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16244ATPACT is usually 5 days.

3.What payment methods are accepted for CY74FCT16244ATPACT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16244ATPACT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY74FCT16244ATPACT?

CY74FCT16244ATPACT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY74FCT16244ATPACT 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 CY74FCT16244ATPACT?

For technical support, including CY74FCT16244ATPACT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16244ATPACT requirements.

6.How does Aetrix verify that CY74FCT16244ATPACT is sourced from the original manufacturer or authorized distributors?

All CY74FCT16244ATPACT 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 CY74FCT16244ATPACT meets industry standards.

7.What is the process for return or replacement of CY74FCT16244ATPACT?

All CY74FCT16244ATPACT units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16244ATPACT, 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 CY74FCT16244ATPACT part is unused and in its original packaging.

Return procedure for CY74FCT16244ATPACT:

1.Submit a request within 90 days.

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

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