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Texas Instruments CY74FCT16240ATPVC
- Part No.:
- CY74FCT16240ATPVC
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16240ATPVC.pdf
- Description:
- IC BUFFER INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,763
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Product details
Overview
CY74FCT16240ATPVC from Texas Instruments is a 16-bit non-inverting three-state buffer/line driver optimized for high-speed memory and bus interface applications. It features 64 mA sink / 32 mA source drive capability, <4.8 ns propagation delay (tPLH/tPHL), Ioff partial-power-down support, and operates at 5V ±10% over –40°C to +85°C. It drives high-capacitance loads and low-impedance backplanes in industrial control systems.
For engineers reviewing the CY74FCT16240ATPVC datasheet, CY74FCT16240ATPVC pinout, CY74FCT16240ATPVC application, or CY74FCT16240ATPVC equivalent, this page delivers verified electrical specs, SSOP-48 package details, functional role in bus buffering, and validated alternative options for industrial timing-critical designs.
Technical Context
The CY74FCT16240ATPVC implements dual 8-bit non-inverting buffers with independent active-low three-state enable controls (1OE, 2OE, 3OE, 4OE), enabling flexible 4-/8-/16-bit bus segmentation. Its output drivers are asymmetrical-optimized for higher sink current (64 mA) than source (32 mA)-to suppress ground bounce in heavy capacitive loading scenarios.
It integrates edge-rate control circuitry to reduce switching noise and ensures typical output skew <250 ps across all 16 outputs. The Ioff feature disables outputs and blocks current backflow when VCC = 0 V, supporting hot-insertion and partial-power-down system architectures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - compatible with standard TTL/CMOS logic rails; no level-shifting required in 5-V systems |
| Propagation Delay | 4.8 ns max (tPLH/tPHL) - enables reliable operation in >200 MHz bus cycles with margin |
| Sink/Source Drive | 64 mA sink / 32 mA source per output - sufficient to drive 50-Ω transmission lines or 100+ pF backplane traces |
| Ioff Support | Enabled at VCC = 0 V - prevents damaging back-current during power sequencing or hot-swap events |
| Operating Temp | –40°C to +85°C - qualified for industrial environments including factory automation and motor control cabinets |
| ESD Rating | >2000 V HBM - robust handling during PCB assembly and field service without additional protection |
| Output Skew | <250 ps typical - ensures deterministic timing alignment across all 16 outputs in synchronous bus applications |
Pinout & Package
CY74FCT16240ATPVC is housed in a 48-pin SSOP (Shrink Small Outline Package), 300-mil body width, 0.025-inch pitch, JEDEC MO-153 compliant. Package dimensions: 12.6 mm × 6.2 mm × 1.75 mm max height. Pin 1 marked with notch or dot; gull-wing leads for surface-mount reflow.
| 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 (Grouped by section) | Four independent 4-bit input buses; each group driven by its own OE control |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 (Pins 5–6, 11–12, 17–18, 23–24) | Non-inverting Outputs (Grouped) | Corresponding buffered outputs; high-impedance when respective OE = HIGH |
| 1OE, 2OE, 3OE, 4OE (Pins 25, 27, 37, 39) | Active-Low Output Enables | Independent control per 4-bit segment; allows dynamic bus partitioning without gating logic |
| VCC (Pins 26, 48) | Power Supply | Dual VCC pins reduce supply impedance and improve noise immunity on wide buses |
| GND (Pins 28, 36, 40, 47) | Ground Returns | Four dedicated GND pins minimize ground bounce and ensure stable reference for all 16 drivers |
Key Features
| Feature | Design Value |
|---|---|
| Asymmetrical Output Drive | 64 mA sink / 32 mA source per pin - matches typical load asymmetry (e.g., pull-down dominant buses), reducing ground bounce vs. balanced drivers |
| Ioff Partial-Power-Down | Outputs disabled and isolated at VCC = 0 V - eliminates backfeed risk during board-level power sequencing or hot-swap |
| Edge-Rate Controlled Outputs | Controlled slew rate reduces EMI and crosstalk in dense routing - critical for mixed-signal industrial PCBs |
| Flow-Through Pinout | Input-output pairing (e.g., A1→Y1 adjacent) minimizes trace length and layer transitions - simplifies layout for high-speed buses |
| Industrial Temperature Range | –40°C to +85°C operation - supports deployment in uncontrolled enclosures such as PLC chassis and motor drives |
Applications
| Memory Address Buffering | Backplane Bus Driver |
|---|---|
|
Use Scenario: Driving address lines from a microcontroller to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Non-inverting 16-bit buffer with independent OE controls isolates memory banks and prevents contention during bank switching. Use Value: 4.8 ns propagation delay and <250 ps skew ensure setup/hold timing margins are preserved across all 16 address bits under worst-case voltage/temperature. |
Use Scenario: Interfacing a CPU local bus to a 16-bit parallel backplane carrying control/status signals across multiple slots. IC Role / Device Role / Timing Role: High-drive line driver conditioning signals for long traces (>10 cm) with distributed capacitance up to 150 pF. Use Value: 64 mA sink capability maintains VOL ≤ 0.55 V even under full capacitive load, preventing false LOW detection at receivers. |
| Industrial I/O Expansion | Programmable Logic Interface |
|
Use Scenario: Buffering digital I/O signals between an FPGA and external sensors/actuators in a modular I/O rack. IC Role / Device Role / Timing Role: Three-state interface translating FPGA core voltage (3.3 V) to 5-V tolerant industrial fieldbus levels via external pull-ups. Use Value: Ioff protection prevents current leakage into unpowered FPGA banks during module hot-plug, avoiding latch-up or data corruption. |
Use Scenario: Connecting CPLD configuration data or JTAG boundary-scan test signals to legacy 5-V logic subsystems. IC Role / Device Role / Timing Role: Level-tolerant, low-skew repeater ensuring signal integrity across mixed-voltage test access ports. Use Value: Edge-rate control and <0.5 ns output skew guarantee clean TCK/TMS edges required for IEEE 1149.1 compliance at 25 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit non-inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162240ATPVC | Balanced 24 mA output drive (sink/source); lower ground bounce (<0.6 V VOLP); 4.3 ns max tPLH | Optimized for transmission-line driving with termination resistors; less suitable for high-sink-demand backplanes | Select when minimizing ground bounce and matching 50-Ω lines is prioritized over raw drive strength |
| SN74FCT16240ATPVCT | Same electrical specs and pinout; identical SSOP-48 package; TI-branded marking (FCT16240A) | No functional difference; fully interchangeable in layout and firmware; same industrial temp range and Ioff behavior | Preferred for new designs sourcing exclusively from TI's authorized channel; identical performance and qualification |
Compared with CY74FCT162240ATPVC, the CY74FCT16240ATPVC delivers higher sink current for heavy capacitive loads but exhibits greater ground bounce; versus SN74FCT16240ATPVCT, it is functionally identical with only branding and orderable-part nuance distinguishing them - making the latter a drop-in logistics alternative.
Availability
CY74FCT16240ATPVC is available at Aetrix Electronics and suitable for industrial control systems, programmable logic interfaces, memory expansion modules, and backplane bus architectures requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY74FCT16240ATPVC 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 with emphasis on reliability, longevity, and industrial-grade qualification.
The CY74FCT16240ATPVC belongs to TI's FCT logic family-designed specifically for high-speed, low-noise, 5-V bus interfacing in industrial, telecom, and computing infrastructure where timing precision and power sequencing robustness are critical.
FAQ
What is the maximum operating frequency supported by CY74FCT16240ATPVC?
CY74FCT16240ATPVC does not specify a maximum clock frequency directly, but its 4.8 ns maximum propagation delay supports reliable operation in bus systems with cycle times ≥9.6 ns - corresponding to effective data rates up to ~104 MHz for single-data-rate interfaces. System-level timing must account for board trace delays and receiver setup/hold requirements, but the device itself is rated for use in 200 MHz-class backplane applications when properly terminated and routed.
Does CY74FCT16240ATPVC support 3.3-V input logic levels?
Yes, CY74FCT16240ATPVC accepts 3.3-V TTL-compatible inputs: VIH is specified at 2.0 V minimum and VIL at 0.8 V maximum, well within 3.3-V logic HIGH/LOW thresholds. It is commonly used to interface 3.3-V FPGAs or microcontrollers to 5-V buses without level shifters - provided the 5-V VCC rail is present and stable during operation.
Is CY74FCT16240ATPVC pin-compatible with CY74FCT162240ATPVC?
Yes, CY74FCT16240ATPVC and CY74FCT162240ATPVC share identical 48-pin SSOP packaging, pinout, and functional assignment - including all input, output, enable, power, and ground terminals. However, their output driver characteristics differ: CY74FCT16240ATPVC provides asymmetrical 64/32 mA drive, while CY74FCT162240ATPVC offers symmetrical 24 mA drive with integrated current-limiting resistors.
What is the purpose of the Ioff feature in CY74FCT16240ATPVC?
The Ioff feature in CY74FCT16240ATPVC disables all outputs and blocks current flow when VCC = 0 V, preventing damaging back-current from live buses into unpowered sections of a system. This enables safe hot-insertion of daughter cards and supports partial-power-down modes in modular industrial controllers - a key requirement for systems with staggered power sequencing or redundant power domains.
Can CY74FCT16240ATPVC be used in place of SN74FCT16240ATPVCT?
Yes, CY74FCT16240ATPVC and SN74FCT16240ATPVCT are functionally and electrically identical - same datasheet specifications, pinout, package (SSOP-48), temperature range, and Ioff behavior. The distinction lies only in branding (Cypress vs. TI legacy marking) and orderable part number; both are manufactured by TI and qualify as direct replacements in existing designs or new builds.
CY74FCT16240ATPVC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Logic Type:
- Buffer, 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-SSOP
CY74FCT16240ATPVC FAQ
1.How can I place an order for CY74FCT16240ATPVC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16240ATPVC 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 CY74FCT16240ATPVC reliable?
The price and inventory of CY74FCT16240ATPVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16240ATPVC is usually 5 days.
3.What payment methods are accepted for CY74FCT16240ATPVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16240ATPVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT16240ATPVC?
CY74FCT16240ATPVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16240ATPVC 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 CY74FCT16240ATPVC?
For technical support, including CY74FCT16240ATPVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16240ATPVC requirements.
6.How does Aetrix verify that CY74FCT16240ATPVC is sourced from the original manufacturer or authorized distributors?
All CY74FCT16240ATPVC 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 CY74FCT16240ATPVC meets industry standards.
7.What is the process for return or replacement of CY74FCT16240ATPVC?
All CY74FCT16240ATPVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16240ATPVC, 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 CY74FCT16240ATPVC part is unused and in its original packaging.
Return procedure for CY74FCT16240ATPVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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