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Texas Instruments CY74FCT16244TPVCT
- Part No.:
- CY74FCT16244TPVCT
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16244TPVCT.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,863
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Product details
Overview
CY74FCT16244TPVCT 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, supports partial-power-down via Ioff, operates at 5 V ±10%, and features typical output skew <250 ps. It is used to drive high-capacitance loads and low-impedance backplanes in industrial control systems.
For engineers reviewing the CY74FCT16244TPVCT datasheet, CY74FCT16244TPVCT pinout, CY74FCT16244TPVCT application, or CY74FCT16244TPVCT equivalent, key selection criteria include its 64 mA sink capability, flow-through pinout for simplified PCB layout, Ioff support for live-insertion, and SSOP-48 packaging with industrial temperature range (–40°C to +85°C).
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 backflow current during partial power-down.
It uses FCT logic technology with edge-rate control to reduce switching noise and ground bounce (typical VOLP <1.0 V), and features TTL-compatible input thresholds (VIL = 0.8 V, VIH = 2.0 V) and CMOS-level output swing (VOH ≥2.5 V at –32 mA, VOL ≤0.55 V at 64 mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - compatible with standard TTL/5-V logic systems without level translation |
| Output Drive | 64 mA sink / 32 mA source - sufficient to directly drive heavy capacitive loads and unterminated backplanes |
| Propagation Delay | 1.5 ns (min) to 6.5 ns (max) - enables operation in high-speed digital buses up to ~150 MHz effective data rate |
| Output Skew | <250 ps (typical) - ensures tight timing alignment across all 16 outputs for synchronous bus integrity |
| Ioff Support | Yes - prevents damaging current backflow when powered down, enabling hot-swap and partial-power-down system architectures |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and automation equipment |
| ESD Rating | >2000 V (HBM) - provides robust handling margin during assembly and field service |
Pinout & Package
Package: 48-pin SSOP (O48), 300-mil body width, 0.635 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 groups of 4-bit non-inverting inputs; each group maps directly to corresponding Y outputs |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 (Pins 5–6, 11–12, 17–18, 23–24) | Three-State Outputs | Corresponding buffered outputs; high-impedance when respective OE is HIGH |
| 1OE, 2OE, 3OE, 4OE (Pins 25, 27, 29, 31) | Active-Low Output Enables | Independent control per 4-bit group; LOW enables outputs, HIGH places them in high-Z state |
| VCC (Pins 26, 34, 40, 46) | Power Supply | Four distributed VCC pins minimize supply inductance and improve noise immunity |
| GND (Pins 28, 30, 32, 33, 36–39, 41–45, 47, 48) | Ground | Twelve GND pins provide low-inductance return paths and reduce ground bounce under fast switching |
Key Features
| Feature | Design Value |
|---|---|
| Ioff partial-power-down protection | Disables outputs and blocks reverse current when VCC = 0 V - essential for hot-plug and modular backplane designs |
| Edge-rate controlled outputs | Reduces simultaneous switching noise (SSN) and ground bounce (VOLP <1.0 V), improving signal integrity on dense PCBs |
| Flow-through pinout | Input–output pairing across package edges simplifies layer routing and minimizes trace length mismatch in bus layouts |
| High sink current (64 mA) | Drives heavy capacitive loads (e.g., >100 pF traces or multiple TTL inputs) without external buffering |
| TTL-compatible input thresholds | VIL ≤0.8 V / VIH ≥2.0 V - ensures reliable interfacing with legacy 5-V microcontrollers, FPGAs, and ASICs |
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 providing level-shifting, fanout expansion, and timing-aligned signal distribution. Use Value: Ensures setup/hold timing margins are preserved across all 16 address bits due to <250 ps output skew and sub-7 ns propagation delay. |
Use Scenario: Interfacing a CPU module to a multi-slot industrial backplane carrying parallel control and status signals. IC Role / Device Role / Timing Role: High-current line driver isolating the controller from backplane capacitance and noise. Use Value: 64 mA sink capability drives long, unterminated traces; Ioff allows safe insertion/removal while backplane remains powered. |
| Industrial PLC I/O Expansion | Legacy System Bus Interface |
|
Use Scenario: Extending parallel I/O from an FPGA-based PLC controller to remote terminal units (RTUs) over ribbon cables. IC Role / Device Role / Timing Role: Three-state buffer enabling bidirectional bus sharing and contention-free read/write cycles. Use Value: Four independent OE controls allow dynamic partitioning of 16-bit I/O into 4-, 8-, or 16-bit segments for flexible addressing. |
Use Scenario: Bridging a modern ARM-based host processor to legacy ISA-style peripheral cards requiring 5-V TTL signaling. IC Role / Device Role / Timing Role: Level-translation and drive-strengthening interface between mixed-voltage subsystems. Use Value: TTL-compatible inputs accept 3.3-V or 5-V logic levels; robust 5-V outputs meet legacy card input requirements without external resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer/line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162244TPVCT | 24 mA balanced output drive (sink/source), integrated current-limiting resistors, lower ground bounce (VOLP <0.6 V) | Better suited for transmission-line driving with reduced reflections; not optimized for high-sink backplane loads | Select when driving controlled-impedance traces or minimizing EMI in high-density layouts |
| CY74FCT162H244TPVCT | 24 mA outputs with bus-hold inputs (no external pull-ups required), retains last valid logic state on floating inputs | Eliminates need for external biasing in systems with intermittent or disconnected peripherals | Select when interfacing to hot-swappable modules or unpowered downstream devices where input float is likely |
Compared with CY74FCT162244TPVCT and CY74FCT162H244TPVCT, the CY74FCT16244TPVCT prioritizes maximum sink strength and backplane drive capability over bus-hold or transmission-line optimization - making it the preferred choice for legacy 5-V bus loading and industrial backplane isolation.
Availability
CY74FCT16244TPVCT is available at Aetrix Electronics and suitable for industrial automation, embedded control, and legacy system integration requiring stable component supply, long-lifecycle support, and guaranteed SSOP-48 packaging.
Supply support for CY74FCT16244TPVCT 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 for industrial, automotive, and communications markets.
CY74FCT16244TPVCT belongs to TI's FCT logic family, engineered for high-speed, low-noise 5-V bus interface applications in industrial control, instrumentation, and legacy system upgrades.
FAQ
What is the maximum output sink current specification for CY74FCT16244TPVCT?
The CY74FCT16244TPVCT is rated for 64 mA sink current per output pin under specified conditions (VCC = minimum, IOL tested at VOL ≤ 0.55 V). This value is confirmed in the "Output Drive Characteristics" table of the official datasheet and enables direct driving of high-capacitance loads without external buffers. The CY74FCT16244TPVCT maintains this rating across its full industrial temperature range (–40°C to +85°C).
Does CY74FCT16244TPVCT support partial power-down operation?
Yes, CY74FCT16244TPVCT includes Ioff circuitry that disables outputs and blocks reverse current flow when VCC = 0 V. This feature is explicitly documented in the Functional Description and Maximum Ratings sections, allowing safe use in hot-swap and modular backplane systems. The CY74FCT16244TPVCT meets this behavior across its entire operating temperature range.
What package type and dimensions does CY74FCT16244TPVCT use?
CY74FCT16244TPVCT uses a 48-pin SSOP (Shrink Small Outline Package), designated O48, with 300-mil body width and 0.635 mm lead pitch. Mechanical drawings confirm overall dimensions of 12.6 mm × 6.2 mm × 1.2 mm max height, compliant with JEDEC MO-153. This package is distinct from the TSSOP variant (Z48) and is verified in TI's Packaging Information addendum.
What is the propagation delay range for CY74FCT16244TPVCT?
The CY74FCT16244TPVCT has a propagation delay (tPLH/tPHL) ranging from 1.5 ns (minimum) to 6.5 ns (maximum) over its full operating range. This value is specified in the "Switching Characteristics" table for the 'T' speed grade and reflects worst-case timing under industrial temperature and voltage conditions. The CY74FCT16244TPVCT's delay consistency supports reliable timing closure in 16-bit parallel bus designs.
How many independent output-enable controls does CY74FCT16244TPVCT provide?
CY74FCT16244TPVCT provides four independent active-low output-enable inputs (1OE, 2OE, 3OE, 4OE), each controlling a 4-bit channel. This architecture is clearly shown in the Pin Configuration diagram and functional description, enabling granular bus segmentation - for example, using 1OE+2OE for 8-bit mode while holding 3OE+4OE inactive. The CY74FCT16244TPVCT's flow-through layout aligns these enables to simplify PCB routing.
CY74FCT16244TPVCT 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
CY74FCT16244TPVCT FAQ
1.How can I place an order for CY74FCT16244TPVCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16244TPVCT 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 CY74FCT16244TPVCT reliable?
The price and inventory of CY74FCT16244TPVCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16244TPVCT is usually 5 days.
3.What payment methods are accepted for CY74FCT16244TPVCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16244TPVCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT16244TPVCT?
CY74FCT16244TPVCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16244TPVCT 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 CY74FCT16244TPVCT?
For technical support, including CY74FCT16244TPVCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16244TPVCT requirements.
6.How does Aetrix verify that CY74FCT16244TPVCT is sourced from the original manufacturer or authorized distributors?
All CY74FCT16244TPVCT 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 CY74FCT16244TPVCT meets industry standards.
7.What is the process for return or replacement of CY74FCT16244TPVCT?
All CY74FCT16244TPVCT units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16244TPVCT, 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 CY74FCT16244TPVCT part is unused and in its original packaging.
Return procedure for CY74FCT16244TPVCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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