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Texas Instruments CY74FCT16244TPVC
- Part No.:
- CY74FCT16244TPVC
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16244TPVC.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:265
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Product details
Overview
CY74FCT16244TPVC 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, operates at 5V ±10%, supports –40°C to +85°C industrial temperature range, and features Ioff partial-power-down protection. It is optimized for driving high-capacitance loads and low-impedance backplanes.
For engineers reviewing the CY74FCT16244TPVC datasheet, CY74FCT16244TPVC pinout, CY74FCT16244TPVC application, or CY74FCT16244TPVC equivalent, key selection considerations include its 6.5 ns max propagation delay, flow-through pinout for simplified PCB layout, edge-rate control for noise reduction, and SSOP-48 package compatibility with legacy 300-mil footprint designs.
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-bit, 8-bit, or full 16-bit bus control. Its Ioff circuitry disables outputs when VCC = 0 V, preventing current backflow during partial power-down.
The CY74FCT16244TPVC uses standard FCT logic architecture with TTL-compatible input thresholds (VIH = 2.0 V, VIL = 0.8 V), 4.5 pF typical input capacitance, and edge-rate limiting to suppress ground bounce (VOLP < 1.0 V at 5 V, 25°C). It does not include bus hold or balanced drivers - those are exclusive to CY74FCT162244T and CY74FCT162H244T variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - compatible with standard 5-V TTL/CMOS systems without level-shifting. |
| Propagation Delay | 6.5 ns max (tPLH/tPHL) - enables reliable operation in high-speed address/data buses up to ~150 MHz. |
| Output Drive | 64 mA sink / 32 mA source - sufficient to drive heavy capacitive loads (e.g., >100 pF traces or multiple TTL inputs). |
| Operating Temp | –40°C to +85°C - qualified for industrial environments including factory automation and telecom infrastructure. |
| Ioff Protection | Active at VCC = 0 V - prevents back-current damage when powered down while system bus remains live. |
| ESD Rating | >2000 V HBM - provides robust handling margin during board assembly and field service. |
| Input Thresholds | VIH = 2.0 V, VIL = 0.8 V - ensures reliable interfacing with standard TTL and 5-V CMOS logic families. |
Pinout & Package
Package: 48-pin SSOP (O48), 300-mil body width, 0.5 mm pitch, 1.2 mm max height, JEDEC MO-153 compliant.
| 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 or hysteresis. |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 (Pins 5–6, 11–12, 17–18, 23–24, 25–26, 31–32, 37–38, 43–44) | Three-State Outputs | Non-inverting buffered outputs; high-impedance when corresponding OE is HIGH. |
| 1OE, 2OE, 3OE, 4OE (Pins 27, 33, 39, 45) | Active-Low Enable | Independent per-group control: LOW enables outputs, HIGH places them in high-Z state. |
| VCC (Pins 24, 48) | Power Supply | 5-V supply connection; dual pins reduce IR drop and improve noise immunity. |
| GND (Pins 23, 47) | Ground Reference | Dual ground pins provide low-inductance return path for output switching currents. |
Key Features
| Feature | Design Value |
|---|---|
| Ioff partial-power-down support | Enables safe integration into hot-swap or multi-rail systems where VCC may be unpowered while bus signals remain active. |
| Edge-rate controlled outputs | Reduces simultaneous switching noise (SSN) and ground bounce (VOLP < 1.0 V), critical for signal integrity on dense backplanes. |
| Flow-through pinout | Minimizes trace crossing and layer count in PCB layout - inputs on one side, outputs on opposite side per group. |
| Typical output skew < 250 ps | Ensures tight timing alignment across all 16 outputs, essential for synchronous bus applications like memory address latching. |
| Industrial temperature rating | Validated operation from –40°C to +85°C supports deployment in uncontrolled industrial enclosures and outdoor telecom cabinets. |
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 per-group enable control isolates address decoding logic and prevents contention during chip select transitions. Use Value: 64 mA sink capability ensures clean logic transitions even with 50+ pF net capacitance; 6.5 ns delay preserves setup/hold timing margins. | Use Scenario: Transmitting parallel data across a 16-bit passive backplane connecting modular I/O cards in industrial PLC chassis. IC Role / Device Role / Timing Role: High-drive line driver conditioning signals for long, unterminated traces with distributed capacitance. Use Value: Edge-rate control minimizes reflections and ground bounce, while Ioff protects against backfeeding when modules are inserted/removed live. |
| Clock Distribution Fanout | Legacy Bus Interface Isolation |
Use Scenario: Distributing a single 5-V clock signal to eight downstream peripherals requiring synchronized timing. IC Role / Device Role / Timing Role: Low-skew (≤250 ps) buffer replicating clock with matched propagation paths across all outputs. Use Value: Tight output skew maintains phase alignment critical for setup/hold compliance in synchronous digital systems. | Use Scenario: Interfacing a modern FPGA I/O bank (5-V tolerant) to legacy ISA or VME bus peripherals operating at 5 V. IC Role / Device Role / Timing Role: Level-consistent, three-state bidirectional buffer enabling controlled bus arbitration and direction switching. Use Value: Independent OE pins allow precise timing control over data flow direction and bus release, avoiding contention during handshaking cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162244TPVC | 24 mA balanced output drive, reduced ground bounce (VOLP < 0.6 V), no Ioff. | Better suited for transmission-line driving with external termination; less suitable for high-capacitance loads. | Select when minimizing SSN on controlled-impedance traces is prioritized over raw drive strength. |
| CY74FCT162H244TPVC | 24 mA drive with bus-hold inputs; eliminates need for external pull-ups; no Ioff. | Preferred for floating-input scenarios (e.g., unconnected test points or hot-plug connectors); adds input state retention. | Choose when input signal integrity under undefined conditions is critical and drive strength requirements are moderate. |
Compared with CY74FCT162244TPVC and CY74FCT162H244TPVC, the CY74FCT16244TPVC offers superior sink current (64 mA vs. 24 mA) and Ioff protection - making it uniquely suitable for high-load, partial-power-down industrial backplane and memory buffering where robustness and drive capability outweigh bus-hold or ultra-low-noise requirements.
Availability
CY74FCT16244TPVC is available at Aetrix Electronics and suitable for industrial control systems, telecom backplane interfaces, and legacy 5-V memory subsystems requiring stable component supply and long-term lifecycle continuity.
Supply support for CY74FCT16244TPVC 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 connectivity solutions for industrial, automotive, and communications markets.
The CY74FCT16244TPVC belongs to TI's FCT logic family - engineered for high-speed, low-noise 5-V bus interface applications where drive strength, timing precision, and power-down safety are critical design requirements.
FAQ
What is the maximum propagation delay specification for CY74FCT16244TPVC?
The CY74FCT16244TPVC has a maximum propagation delay (tPLH/tPHL) of 6.5 ns over the full industrial temperature range (–40°C to +85°C) and VCC = 4.5 V to 5.5 V. This value is measured from input transition to valid output transition under specified load conditions and defines the upper timing bound for synchronous bus timing budgets.
Does CY74FCT16244TPVC support partial-power-down operation?
Yes, CY74FCT16244TPVC includes Ioff circuitry that disables all outputs when VCC = 0 V, preventing damaging current backflow from live bus lines into the unpowered device. This feature is fully specified and tested per JEDEC standards, making CY74FCT16244TPVC suitable for hot-swap and multi-rail systems.
What package type and dimensions does CY74FCT16244TPVC use?
CY74FCT16244TPVC uses a 48-pin SSOP (Shrunk Small Outline Package), designated O48, with 300-mil body width, 0.5 mm lead pitch, and 1.2 mm maximum height. Its mechanical outline complies with JEDEC MO-153 and matches legacy 5-V logic footprints used in industrial and telecom equipment.
Can CY74FCT16244TPVC drive high-capacitance loads such as backplanes?
Yes, CY74FCT16244TPVC is explicitly designed for high-capacitance loads: its 64 mA sink and 32 mA source drive strength, combined with edge-rate control and <250 ps output skew, enables reliable signal integrity on backplanes with >100 pF net capacitance - as confirmed in TI's functional description and application guidance.
Is CY74FCT16244TPVC pin-compatible with CY74FCT162244TPVC or CY74FCT162H244TPVC?
No, CY74FCT16244TPVC is not pin-compatible with CY74FCT162244TPVC or CY74FCT162H244TPVC. While all three share the same 48-pin SSOP package and pin count, their input/output electrical behaviors differ significantly - only CY74FCT16244TPVC provides 64 mA sink drive and Ioff; the others offer bus hold or balanced 24 mA drive but lack Ioff, requiring distinct layout and system-level validation.
CY74FCT16244TPVC 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, 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
CY74FCT16244TPVC FAQ
1.How can I place an order for CY74FCT16244TPVC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16244TPVC 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 CY74FCT16244TPVC reliable?
The price and inventory of CY74FCT16244TPVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16244TPVC is usually 5 days.
3.What payment methods are accepted for CY74FCT16244TPVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16244TPVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT16244TPVC?
CY74FCT16244TPVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16244TPVC 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 CY74FCT16244TPVC?
For technical support, including CY74FCT16244TPVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16244TPVC requirements.
6.How does Aetrix verify that CY74FCT16244TPVC is sourced from the original manufacturer or authorized distributors?
All CY74FCT16244TPVC 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 CY74FCT16244TPVC meets industry standards.
7.What is the process for return or replacement of CY74FCT16244TPVC?
All CY74FCT16244TPVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16244TPVC, 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 CY74FCT16244TPVC part is unused and in its original packaging.
Return procedure for CY74FCT16244TPVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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