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HomeProductsIntegrated Circuits (ICs)Specialized ICsCY74FCT16244TPVCT
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CY74FCT16244TPVCT - Texas Instruments

Manufacturer Part Number
CY74FCT16244TPVCT
Manufacturer
Texas Instruments
Allelco Part Number
41D-CY74FCT16244TPVCT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
15,280 pcs available, New & Original
Parts Description
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Category
Integrated Circuits (ICs) > Specialized ICs
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Specifications

CY74FCT16244TPVCT Tech Specifications
Texas Instruments - CY74FCT16244TPVCT technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - CY74FCT16244TPVCT

Product Attribute Attribute Value
Part Number CY74FCT16244TPVCT
Package -
Description -
Stock Condition Get 15280 pcs available quantity at Allelco
Payment PayPal / TT / Credit Card / Western Union
Allelco Certifications ESD / ISO 9001 / ISO 13485 / ISO 28000
Product Attribute Attribute Value
Manufacturer Texas Instruments
RoHs Status -
Warranty 100% Perfect Functions
Transport port Hong Kong
Shipping by DHL / FedEx / UPS / TNT / SF Express
RFQ Email info@allelco.com

Parts Introduction

Manufacturer Part Number

CY74FCT16244TPVCT

Manufacturer

Texas Instruments

Introduction

The CY74FCT16244TPVCT is a 4-bit non-inverting buffer/line driver with 3-state outputs. It is part of the 74FCT series and designed for use in high-speed logic applications where low power and high-speed performance are required.

Product Features and Performance

4-bit non-inverting buffer/line driver

3-state outputs

High-speed operation

Low power consumption

Operating voltage of 4.5V to 5.5V

Operating temperature range of -40°C to +85°C

Product Advantages

Improved speed and efficiency compared to previous 74-series logic devices

Ability to drive higher capacitive loads with low power consumption

Wide operating voltage and temperature range

Key Reasons to Choose This Product

High-speed performance for demanding applications

Low power operation for energy-efficient designs

Reliable and well-established 74-series logic family

Quality and Safety Features

Rigorously tested for quality and reliability

Complies with safety standards for electronic components

Compatibility

The CY74FCT16244TPVCT is compatible with other 74FCT series logic devices and can be used in a variety of digital electronic applications.

Application Areas

High-speed digital logic circuits

Interface and buffer applications

Data communication systems

Computer and peripheral equipment

Product Lifecycle

The CY74FCT16244TPVCT is an obsolete product, meaning it is no longer in active production. However, there are several equivalent or alternative models available from Texas Instruments, such as the SN74FCTH16244PW, SN74FCTH16244PWR, and SN74FCTH16244PWRG4. Customers are advised to contact our website's sales team for more information on available alternatives and product support.

Frequently Asked Questions(FAQ)

How does the CY74FCT16244TPVCT handle signal integrity in high-speed digital systems, and what design considerations should be taken into account when using it as a buffer in 4-bit wide data paths?
The CY74FCT16244TPVCT features 3-state outputs with balanced drive characteristics—32mA output high and 64mA output low—which helps maintain signal integrity by minimizing reflections and overshoot in transmission lines. Its 4-element, 4-bit-per-element architecture supports efficient bus buffering in 16-bit wide data transfers when multiple devices are cascaded. However, due to the 48-SSOP package’s limited pin count and thermal dissipation constraints, designers must ensure adequate PCB trace impedance matching and minimize stub lengths to prevent ringing. Operating within the 4.5V–5.5V supply range also requires careful power sequencing to avoid latch-up, especially when interfacing with mixed-voltage subsystems.
What are the key differences between the CY74FCT16244TPVCT and its substitute part 74FCT163244APVG, particularly in terms of functionality and pin compatibility?
While both parts belong to Texas Instruments’ 74FCT family and share similar voltage and temperature specifications, the CY74FCT16244TPVCT is a non-inverting buffer, whereas the 74FCT163244APVG appears to be an inverting version (based on the '32' suffix indicating inversion logic). Pin compatibility depends on package type—both use SSOP variants—but electrical behavior differs due to internal logic configuration. The 244 series typically includes tri-state control inputs, which must align with system enable signals during board layout. Designers must verify truth tables and enable pin functions before substituting to avoid incorrect signal polarity or unintended high-impedance states.
Can the CY74FCT16244TPVCT be used in hot-swappable applications, and what precautions are necessary given its 3.3V and 5V logic level compatibility?
Yes, the CY74FCT16244TPVCT supports mixed-voltage operation from 4.5V to 5.5V, making it suitable for environments where downstream components operate at 3.3V logic levels. However, hot-swapping introduces risk of backpowering through the I/O pins if not properly managed. To mitigate this, series resistors (typically 22Ω–100Ω) should be placed at each output to limit current transients. Additionally, decoupling capacitors near the VCC and GND pins help stabilize supply rails during insertion events. Since the device has no explicit hot-swap protection circuitry, external current-limiting components are recommended for robust reliability.
What is the impact of operating temperature on propagation delay in the CY74FCT16244TPVCT, and how might this affect timing budgets in industrial control systems?
The CY74FCT16244TPVCT operates across -40°C to 85°C, with typical propagation delays specified at room temperature (25°C). As junction temperature increases, carrier mobility in bipolar transistors degrades slightly, causing marginal increases in tPLH and tPHL. In worst-case scenarios near 85°C, propagation delay can increase by up to 15% compared to nominal conditions. For time-critical industrial systems requiring precise synchronization across 4-bit buffers, this variation necessitates derating margin in clock distribution networks. Designers should simulate end-of-life thermal profiles and validate timing closure under maximum ambient temperatures using actual load capacitance values (e.g., 50pF per output).
How does package parasitics in the 48-SSOP form factor influence switching performance of the CY74FCT16244TPVCT, and what layout practices optimize speed?
The 48-SSOP package exhibits higher lead inductance and inter-pin capacitance compared to smaller QFN or TSSOP alternatives, which can degrade rise/fall times under capacitive loads above 100pF per channel. At 5V operation with 64mA sink capability, output slew rates may saturate near 10–15 ns due to internal resistance and package ESL. To minimize these effects, place bypass capacitors (<0.1μF ceramic) within 2mm of VCC/GND pins, route critical signals differentially if possible, and avoid routing parallel traces close together to reduce crosstalk. Ground planes beneath the package enhance heat dissipation and stabilize reference potential during fast transitions.
When comparing the CY74FCT16244TPVCT to modern CMOS buffer ICs like SN74ABT16244ADLR, what advantages does the FCT technology offer in legacy system migration?
The CY74FCT16244TPVCT leverages Fairchild’s Fast CMOS Transistor (FCT) architecture, offering sub-nanosecond propagation delays and lower static power consumption than standard TTL but more linear threshold behavior than pure CMOS. Unlike SN74ABT16244ADLR, which uses advanced CMOS processes optimized for low power, the FCT variant maintains strong noise margins at 5V while supporting bidirectional I/O structures. This makes it advantageous in mixed-signal designs transitioning from older TTL families without sacrificing compatibility with 3.3V peripherals. However, newer ABT devices often provide better electrostatic discharge (ESD) protection and reduced leakage, so trade-offs depend on system robustness requirements.
What role does the Moisture Sensitivity Level (MSL) rating play in the handling and storage of CY74FCT16244TPVCT components during mass production?
With an MSL of 1, the CY74FCT16244TPVCT is classified as moisture-insensitive and can be stored indefinitely under normal ambient conditions without baking prior to reflow soldering. This simplifies inventory management in high-volume manufacturing and reduces post-production handling steps. However, even MSL 1 devices benefit from dry packaging during long-term storage (>6 months) in humid climates (>60% RH) to prevent condensation-induced popcorning during thermal cycling. Standard JEDEC-compliant packaging ensures compliance with industry reliability standards without special handling beyond typical SMT assembly protocols.
In a multi-drop bus configuration using four CY74FCT16244TPVCT buffers, how should enable signals be coordinated to prevent bus contention?
Bus contention arises when two or more 3-state outputs drive opposing logic levels simultaneously. To avoid this, enable inputs (typically labeled OE#) must be driven by mutually exclusive control signals—either via a decoder with staggered enable pulses or using a centralized arbiter that ensures only one buffer is active at any time. Given the 32/64mA asymmetric drive strength, pull-up/pull-down resistors (e.g., 1kΩ) on unused outputs can weakly hold them in known states during transitions. Additionally, ensure enable assertion/deassertion timing respects setup/hold windows relative to input data changes to prevent metastability or partial conduction states.
Does the CY74FCT16244TPVCT require external pull-up or pull-down resistors, and under what conditions might they be necessary despite having 3-state outputs?
No external pull-ups or pull-downs are strictly required for basic operation since the outputs actively drive high, low, or high-Z states. However, in noisy environments or when driving long traces without termination, weak pull-downs (~10kΩ) on unused inputs may improve immunity to floating-node induced glitches. Similarly, if the enable pin (OE#) is left unconnected, it could float high and activate the buffer unintentionally. Therefore, OE# should always be tied to VCC/GND through a small resistor (10kΩ) or actively controlled. These measures enhance deterministic behavior in fault-tolerant designs.
How does the base product number 74FCT16244 relate to the full model CY74FCT16244TPVCT, and what do the suffixes indicate about environmental and manufacturing compliance?
The base number 74FCT16244 defines the core functional block—a 16-bit wide, 4-element non-inverting buffer with tri-state outputs. The full model number adds contextual details: “CY” denotes Texas Instruments’ commercial line, “TP” specifies the 48-SSOP package variant, “V” indicates RoHS compliance (lead-free), and “C” denotes industrial temperature grade (-40°C to 85°C). The “T” in TP further clarifies tape-and-reel packaging format compatible with automated pick-and-place machines. Together, these suffixes communicate environmental, mechanical, and logistical attributes essential for procurement and qualification in regulated industries.
What are the consequences of exceeding the absolute maximum ratings on VCC or output current in the CY74FCT16244TPVCT, and how can design safeguards prevent catastrophic failure?
Exceeding VCC > 5.5V risks dielectric breakdown in input protection diodes, potentially causing internal leakage or permanent damage even if temporary. Likewise, sustained output currents beyond ±64mA may overheat bond wires or metallization layers, leading to electromigration or open circuits. Though the datasheet specifies short-pulse tolerance, cumulative stress from repeated overcurrent events accelerates degradation. Safeguards include using source impedance in series with outputs (e.g., 5Ω), adding fuses in power rails, and monitoring junction temperature via thermal shutdown circuits if available. Always adhere to derating curves provided in application notes for mission-critical systems.
Can the CY74FCT16244TPVCT drive capacitive loads greater than 200pF per output without performance degradation, and what mitigation strategies exist?
While the CY74FCT16244TPVCT can technically drive loads up to 200pF, significant degradation occurs beyond 100pF due to RC time constants slowing edge rates. At 200pF, rise times may exceed 25ns, increasing susceptibility to crosstalk and electromagnetic interference. Mitigation includes inserting series termination resistors (22Ω–50Ω) near the driver, using point-to-point signaling instead of shared buses, or cascading buffers with lower output resistance. Alternatively, consider faster buffer families like LVPECL or CML for GHz-range applications, though this sacrifices voltage swing compatibility with legacy logic levels.
What distinguishes the ECCN classification (EAR99) of the CY74FCT16244TPVCT from controlled export items, and how might this affect global sourcing decisions?
An ECCN of EAR99 signifies the CY74FCT16244TPVCT is not subject to U.S. Export Administration Regulations (EAR) controls, meaning it generally requires no license for international shipment to most countries. This simplifies logistics for OEMs sourcing globally but doesn’t preclude regional restrictions based on end-use (e.g., military or encryption-related applications). Designers should still verify local import regulations, especially in regions like China or Russia, where dual-use interpretations may apply. Compliance documentation (e.g., SED forms) remains advisable for audits even with EAR99 status.
How does the REACH status (Unaffected) of the CY74FCT16244TPVCT impact material selection and regulatory reporting in consumer electronics?
The “REACH Unaffected” designation indicates the CY74FCT16244TPVCT contains no substances of very high concern (SVHC) above 0.1% weight by weight, eliminating the need for SCIP database notifications or customer-specific substance declarations under EU Regulation 1907/2006. This reduces administrative overhead in consumer product development and accelerates time-to-market in regulated markets. However, suppliers may still update SVHC lists periodically, so periodic revalidation against latest ECHA submissions is prudent for long-lifecycle products.
What testing methodology validates the CY74FCT16244TPVCT’s 3-state functionality in real-world FPGA-to-memory interfaces?
Validation involves applying known data patterns to inputs while toggling the enable pin (OE#) and observing output states with an oscilloscope or logic analyzer. First, confirm active-low enable operation: assert OE# low to activate outputs and verify correct non-inverting mapping across all 16 bits. Then deassert OE# and measure high-impedance state using impedance bridging or current probing to ensure no residual voltage drift. Repeat under worst-case conditions (max load, elevated temperature) to check for hysteresis or slow release. Automated test scripts using boundary-scan (JTAG) can also verify interconnect faults without physical probes.

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  • FPGA***lorer88
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2.00kg-3.00kg USD$50.00 - USD$100.00
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Texas Instruments

CY74FCT16244TPVCT

Texas Instruments
41D-CY74FCT16244TPVCT

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