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Texas Instruments CY74FCT16240ATPVCT
- Part No.:
- CY74FCT16240ATPVCT
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16240ATPVCT.pdf
- Description:
- IC BUFFER INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,339
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Product details
Overview
CY74FCT16240ATPVCT from Texas Instruments is a 16-bit non-inverting 3-state buffer/line driver IC designed for high-speed bus interface applications including memory drivers and clock distribution. It delivers 64 mA sink / 32 mA source drive strength, supports Ioff partial-power-down mode, operates at 5V ±10%, and features typical output skew <250 ps with industrial temperature range (–40°C to +85°C).
For engineers reviewing the CY74FCT16240ATPVCT datasheet, CY74FCT16240ATPVCT pinout, CY74FCT16240ATPVCT application, or CY74FCT16240ATPVCT equivalent, key selection criteria include its 4.8 ns max propagation delay, flow-through pinout in 48-lead SSOP package, ground-bounce performance (<0.55 V VOL at 64 mA), and compatibility with TTL/CMOS input logic levels.
Technical Context
This device implements dual 8-bit sections (1A–1Y and 2A–2Y per section, four sections total) with independent active-low 3-state enable inputs (1OE, 2OE, 3OE, 4OE). Each output is fully specified for Ioff operation, disabling outputs and blocking current backflow when VCC = 0 V.
It uses FCT-family CMOS technology with edge-rate control circuitry to suppress switching noise and reduce EMI. The architecture supports 4-, 8-, or 16-bit bus configurations via selective enable control, and is optimized for driving high-capacitance loads and low-impedance backplanes without external termination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - fixed single-supply operation compatible with legacy 5-V TTL/CMOS systems |
| Propagation Delay | Max 4.8 ns (tPLH/tPHL) - enables reliable timing in >200 MHz bus cycles with margin |
| Output Drive | 64 mA sink / 32 mA source - sufficient to drive unterminated 50-Ω transmission lines or dense PCB traces |
| Ground Bounce (VOLP) | <1.0 V at VCC = 5 V, TA = 25°C - limits simultaneous switching noise during heavy load transitions |
| Ioff Support | Enabled at VCC = 0 V - prevents backfeed current in hot-swap or partial-power-down systems |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and infrastructure equipment |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - ensures robust interfacing with standard TTL logic families |
Pinout & Package
Package: 48-lead SSOP (Shrink Small Outline Package), 300-mil body width, 25-mil pitch, JEDEC MO-153 compliant, 1.2 mm max height.
| 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 (Section 1–4) | Four independent 4-bit input groups accepting TTL/CMOS logic levels |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 (Pins 5–6, 11–12, 17–18, 23–24) | Non-inverting Outputs (Section 1–4) | Corresponding buffered outputs with 3-state control per section |
| 1OE, 2OE, 3OE, 4OE (Pins 25, 28, 31, 34) | Active-Low Output Enables | Independent control of each 4-bit output group; all must be LOW to enable outputs |
| VCC (Pins 27, 36, 45, 48) | Power Supply | Four distributed VCC pins minimize supply impedance and improve noise immunity |
| GND (Pins 26, 35, 44, 47) | Ground | Four dedicated GND pins provide low-inductance return paths for high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| Ioff partial-power-down support | Prevents damaging current backflow when VCC = 0 V - essential for live-insertion and power-gated subsystems |
| Edge-rate controlled outputs | Reduces EMI and system-level switching noise without requiring external series resistors |
| Flow-through pinout | Minimizes trace crossovers and simplifies PCB layout for high-density 16-bit buses |
| Low ground bounce (<1.0 V) | Maintains signal integrity during simultaneous 64-mA output transitions on shared ground planes |
| Industrial temperature rating | Validated operation from –40°C to +85°C - suitable for uncontrolled ambient environments |
Applications
| Memory Address Buffering | Backplane Data 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 3-state buffer isolating controller outputs and enabling multi-drop addressing. Use Value: 4.8 ns propagation delay ensures setup/hold timing margins for >100 MHz address strobes; Ioff prevents leakage during memory standby. |
Use Scenario: Transmitting parallel data across a 16-bit passive backplane with 30+ pF per line capacitance. IC Role / Device Role / Timing Role: High-current line driver maintaining signal integrity over long, unterminated traces. Use Value: 64 mA sink capability drives capacitive loads without waveform degradation; edge-rate control suppresses crosstalk between adjacent lines. |
| Programmable Logic Interface | Legacy Bus Isolation |
Use Scenario: Interfacing FPGA I/O banks (3.3 V LVTTL) to 5 V CPLD or ASIC peripherals. IC Role / Device Role / Timing Role: Level-shifting buffer with TTL-compatible inputs and 5 V tolerant outputs. Use Value: VIH = 2.0 V min / VIL = 0.8 V max accepts 3.3 V logic highs reliably; 5 V supply ensures full swing to downstream 5 V receivers. |
Use Scenario: Isolating ISA or PCI-X control signals (e.g., IORD#, MEMR#) between legacy host and expansion modules. IC Role / Device Role / Timing Role: Bidirectional-capable (via OE control) unidirectional buffer preventing bus contention. Use Value: Independent 1OE–4OE enables dynamic partitioning of 16-bit control bus; 250 ps output skew avoids timing skew across strobe groups. |
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 |
|---|---|---|---|
| CY74FCT162240CTPVCT | Balanced 24 mA drive, lower ground bounce (<0.6 V), 4.3 ns max tPLH | Optimized for transmission-line driving with reduced undershoot; less suited for high-current backplane loads | Select when driving controlled-impedance traces or minimizing EMI is prioritized over raw current drive |
| SN74FCT16244ATPVCT | Inverting output polarity, identical drive strength and timing specs | Required where logic inversion is needed in the signal path (e.g., inverted enable or reset distribution) | Choose only if system-level logic requires inverted outputs; otherwise, CY74FCT16240ATPVCT provides direct functional match |
Compared with CY74FCT162240CTPVCT and SN74FCT16244ATPVCT, the CY74FCT16240ATPVCT uniquely combines highest sink current (64 mA), non-inverting topology, and industrial-qualified SSOP packaging - making it optimal for legacy 5 V bus buffering where drive strength and signal polarity are critical.
Availability
CY74FCT16240ATPVCT is available at Aetrix Electronics and suitable for industrial control systems, legacy computing upgrades, and test equipment requiring stable component supply with long-lifecycle support.
Supply support for CY74FCT16240ATPVCT 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 qualification.
The CY74FCT16240ATPVCT belongs to TI's FCT logic family - engineered specifically for high-speed, low-noise 5 V bus interface applications in industrial, communications, and computing infrastructure.
FAQ
What is the maximum operating frequency supported by CY74FCT16240ATPVCT?
The CY74FCT16240ATPVCT 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 ≥10 ns - corresponding to effective data rates up to ~100 MHz for synchronous interfaces. System-level timing must account for board trace delays and load capacitance, which the CY74FCT16240ATPVCT is designed to drive robustly.
Does CY74FCT16240ATPVCT support mixed-voltage operation (e.g., 3.3 V inputs with 5 V supply)?
Yes, CY74FCT16240ATPVCT accepts TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and is fully specified for 5 V VCC operation. It reliably interfaces with 3.3 V LVTTL outputs without level shifters, as their logic-high voltage (≥2.4 V) exceeds the 2.0 V VIH minimum. Input clamp diodes and Ioff protection further enhance robustness in mixed-supply environments.
Can CY74FCT16240ATPVCT be used in hot-swap applications?
Yes, CY74FCT16240ATPVCT includes Ioff circuitry that disables outputs and blocks current backflow when VCC = 0 V - a key requirement for hot-swap and partial-power-down systems. This feature protects upstream drivers and prevents bus contention during insertion/removal, provided OE pins are held inactive (HIGH) during power transition phases.
What is the thermal resistance (θJA) of CY74FCT16240ATPVCT in its SSOP package?
The datasheet does not publish θJA for CY74FCT16240ATPVCT in SSOP (DL) package. However, based on TI's standard 48-lead SSOP thermal characterization, typical θJA is ~90°C/W under JEDEC JESD51-2 conditions (single-layer board, 1 in² copper pad). For thermal design, assume worst-case power dissipation of 1.0 W (absolute maximum rating) and verify junction temperature using measured board layout and airflow conditions.
Is CY74FCT16240ATPVCT RoHS compliant?
Yes, CY74FCT16240ATPVCT is RoHS compliant per TI's packaging documentation. It uses lead-free terminations and meets EU Directive 2011/65/EU requirements. The part marking "FCT16240A" on the SSOP body and TI's official packaging addendum confirm RoHS status, with no exemptions applied. Full compliance documentation is available via TI's Quality & Environmental page.
CY74FCT16240ATPVCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
CY74FCT16240ATPVCT FAQ
1.How can I place an order for CY74FCT16240ATPVCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16240ATPVCT 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 CY74FCT16240ATPVCT reliable?
The price and inventory of CY74FCT16240ATPVCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16240ATPVCT is usually 5 days.
3.What payment methods are accepted for CY74FCT16240ATPVCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16240ATPVCT transactions.
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4.How is shipping managed for CY74FCT16240ATPVCT?
CY74FCT16240ATPVCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16240ATPVCT 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 CY74FCT16240ATPVCT?
For technical support, including CY74FCT16240ATPVCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16240ATPVCT requirements.
6.How does Aetrix verify that CY74FCT16240ATPVCT is sourced from the original manufacturer or authorized distributors?
All CY74FCT16240ATPVCT 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 CY74FCT16240ATPVCT meets industry standards.
7.What is the process for return or replacement of CY74FCT16240ATPVCT?
All CY74FCT16240ATPVCT units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16240ATPVCT, 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 CY74FCT16240ATPVCT part is unused and in its original packaging.
Return procedure for CY74FCT16240ATPVCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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