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Texas Instruments CY74FCT16244CTPVCT
- Part No.:
- CY74FCT16244CTPVCT
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16244CTPVCT.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,256
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Product details
Overview
CY74FCT16244CTPVCT 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 drive capability, supports partial-power-down via Ioff, operates at 5V ±10%, and achieves propagation delay ≤4.1 ns with output skew <250 ps. It is used in industrial backplane drivers requiring low ground bounce and high capacitive load drive.
For engineers reviewing the CY74FCT16244CTPVCT datasheet, CY74FCT16244CTPVCT pinout, CY74FCT16244CTPVCT application, or CY74FCT16244CTPVCT equivalent, key selection criteria include its 48-pin SSOP package, industrial temperature range (–40°C to +85°C), Ioff protection, edge-rate controlled outputs, and compatibility with TTL/CMOS logic levels on 5-V systems.
Technical Context
This device implements four independent 4-bit groups of non-inverting buffers, each with dedicated active-low three-state enable (OE) inputs. Its flow-through pinout simplifies PCB layout for parallel bus routing, and the Ioff circuitry ensures no current backflow when VCC = 0 V - critical for hot-swap and partial-power-down systems.
It uses standard FCT logic with TTL-compatible input thresholds (VIL = 0.8 V, VIH = 2.0 V) and provides robust noise immunity via edge-rate control and <250 ps output skew. The device is not bus-hold equipped - unlike CY74FCT162H244CT - and requires externally terminated or actively driven inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC | 5 V ±10% - compatible with standard 5-V TTL/CMOS systems without level translation |
| Propagation Delay (tPLH/tPHL) | ≤4.1 ns max - enables reliable operation in high-speed address/data buses up to ~200 MHz |
| Output Drive | 64 mA sink / 32 mA source - sufficient to drive 50-Ω transmission lines or high-capacitance backplanes directly |
| Output Skew | <250 ps - ensures tight timing alignment across all 16 outputs for synchronous bus applications |
| Ioff Protection | Enabled at VCC = 0 V - prevents damaging back-current during power sequencing or partial shutdown |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and infrastructure equipment |
| ESD Rating | >2000 V HBM - enhances reliability in handling and board assembly environments |
Pinout & Package
Package: 48-pin SSOP (O48), 300-mil body width, 0.5-mm pitch, 1.2-mm max height per JEDEC MO-153.
| 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 4-bit input groups accepting TTL/CMOS logic levels; no bus hold |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 (Pins 25–28, 31–34, 37–40, 43–46) | Three-State Outputs | Non-inverting buffered outputs; high-impedance when corresponding OE is HIGH |
| 1OE, 2OE, 3OE, 4OE (Pins 5, 11, 17, 48) | Active-Low Output Enables | Independent control per 4-bit group; enables 4-bit, 8-bit, or full 16-bit bus operation |
| VCC (Pins 24, 47) | Power Supply | 5-V supply with decoupling required at both pins to minimize switching noise |
| GND (Pins 12, 23, 35, 44) | Ground | Four dedicated ground pins distributed to reduce ground bounce and improve signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| Ioff partial-power-down support | Prevents reverse current flow when VCC = 0 V - essential for hot-plug and mixed-voltage system design |
| Edge-rate controlled outputs | Reduces simultaneous switching noise (SSN) and EMI, improving signal integrity on dense PCBs |
| Flow-through pinout | Input and output pins aligned on opposite sides - minimizes trace crossovers and simplifies layer routing |
| Low ground bounce (VOLP <1.0 V) | Enables clean logic transitions even under heavy capacitive loading or fast edge rates |
| Industrial temperature range | Validated operation from –40°C to +85°C - suitable for factory automation, telecom, and industrial computing |
Applications
| Memory Address Buffering | Backplane Data Driver |
|---|---|
|
Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Non-inverting buffer with independent 4-bit enables, providing isolation and fanout while preserving setup/hold timing margins. Use Value: 4.1 ns max propagation delay and <250 ps skew ensure deterministic address decoding across memory banks without added timing uncertainty. |
Use Scenario: Interfacing a local processor bus to a high-capacitance industrial backplane carrying control and status signals. IC Role / Device Role / Timing Role: High-current line driver delivering 64 mA sink capability to overcome backplane capacitance and termination losses. Use Value: Low ground bounce (<1.0 V) and edge-rate control maintain signal fidelity over long traces, reducing bit errors and retry overhead. |
| Legacy Bus Interface | Hot-Swap I/O Expansion |
|
Use Scenario: Adapting modern 5-V logic to legacy ISA or VMEbus peripherals requiring TTL-level drive strength and timing compliance. IC Role / Device Role / Timing Role: Level-consistent buffer with 5-V VCC, TTL-compatible inputs, and robust noise immunity for noisy industrial enclosures. Use Value: >2000 V HBM ESD rating and industrial temp range ensure long-term reliability in electrically harsh environments. |
Use Scenario: Enabling safe insertion/removal of I/O modules in powered chassis where power domains sequence independently. IC Role / Device Role / Timing Role: Ioff-enabled buffer preventing backfeed into unpowered sections during hot-swap events. Use Value: Ioff protection eliminates need for external isolation FETs or complex power sequencing, reducing BOM count and failure points. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162244CTPVCT | Balanced 24 mA output drive (vs. 64/32 mA asymmetrical); includes current-limiting resistors | Optimized for transmission-line driving with reduced undershoot; lower ground bounce (VOLP <0.6 V) | Select when driving controlled-impedance traces or minimizing reflections is prioritized over raw drive strength. |
| CY74FCT162H244CTPVCT | Includes bus-hold circuitry on all inputs; eliminates need for external pull-up/down resistors | Suitable for floating-bus or intermittent-connect scenarios (e.g., modular connectors, test points) | Select when input signal integrity must be maintained during disconnection or high-impedance states without external components. |
Compared with CY74FCT16244CTPVCT, CY74FCT162244CTPVCT trades peak drive for better transmission-line behavior, while CY74FCT162H244CTPVCT adds bus-hold at the cost of slightly higher input leakage - making each variant optimal for distinct physical-layer requirements rather than direct drop-in replacement.
Availability
CY74FCT16244CTPVCT is available at Aetrix Electronics and suitable for industrial backplane drivers, memory interface buffering, and legacy bus adaptation requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for CY74FCT16244CTPVCT 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 specializing in analog, embedded processing, and logic solutions with broad industrial and automotive qualification.
CY74FCT16244CTPVCT belongs to the 74FCT family of 5-V CMOS/TTL-compatible logic devices engineered for high-speed, low-noise bus interface applications in industrial and infrastructure systems.
FAQ
What is the maximum operating frequency supported by CY74FCT16244CTPVCT?
CY74FCT16244CTPVCT does not specify a maximum clock frequency, but its 4.1 ns max propagation delay supports reliable operation in systems with data/address bus toggle rates up to approximately 200 MHz. System-level timing must account for board trace delays, loading, and setup/hold margins - CY74FCT16244CTPVCT itself is rated for use in high-speed memory and bus interface applications where speed and signal integrity are critical.
Does CY74FCT16244CTPVCT include bus-hold circuitry on its inputs?
No, CY74FCT16244CTPVCT does not include bus-hold functionality. Its inputs require externally defined logic states - either driven actively or pulled to VCC/GND with appropriate resistors. For bus-hold capability, consider CY74FCT162H244CTPVCT, which retains the last valid input state when inputs float.
Can CY74FCT16244CTPVCT operate at 3.3 V?
No, CY74FCT16244CTPVCT is specified only for VCC = 5 V ±10% (4.5 V to 5.5 V). It is not characterized for 3.3-V operation, and applying 3.3 V may result in undefined logic thresholds, degraded noise margins, or failure to meet timing specifications. Use 3.3-V-compatible alternatives like SN74LVC16244A for lower-voltage systems.
What is the purpose of the four separate OE pins on CY74FCT16244CTPVCT?
The four active-low OE pins (1OE–4OE) provide independent three-state control for each 4-bit buffer group. This allows flexible bus partitioning - enabling 4-bit, 8-bit, or full 16-bit operation without external gating logic. In practice, this simplifies design of multi-segment data paths and supports dynamic bandwidth allocation in shared-memory or peripheral interfaces using CY74FCT16244CTPVCT.
Is CY74FCT16244CTPVCT RoHS compliant?
Yes, CY74FCT16244CTPVCT is RoHS compliant per TI's packaging documentation. It uses lead-free finish and meets EU Directive 2011/65/EU requirements. Full compliance details, including exemption status and material declarations, are available in TI's official packaging addendum for orderable part CY74FCT16244CTPVCT.
CY74FCT16244CTPVCT 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, 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-SSOP
CY74FCT16244CTPVCT FAQ
1.How can I place an order for CY74FCT16244CTPVCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16244CTPVCT 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 CY74FCT16244CTPVCT reliable?
The price and inventory of CY74FCT16244CTPVCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16244CTPVCT is usually 5 days.
3.What payment methods are accepted for CY74FCT16244CTPVCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16244CTPVCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT16244CTPVCT?
CY74FCT16244CTPVCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16244CTPVCT 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 CY74FCT16244CTPVCT?
For technical support, including CY74FCT16244CTPVCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16244CTPVCT requirements.
6.How does Aetrix verify that CY74FCT16244CTPVCT is sourced from the original manufacturer or authorized distributors?
All CY74FCT16244CTPVCT 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 CY74FCT16244CTPVCT meets industry standards.
7.What is the process for return or replacement of CY74FCT16244CTPVCT?
All CY74FCT16244CTPVCT units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16244CTPVCT, 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 CY74FCT16244CTPVCT part is unused and in its original packaging.
Return procedure for CY74FCT16244CTPVCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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