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Texas Instruments CY74FCT16244ETPVCT
- Part No.:
- CY74FCT16244ETPVCT
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
CY74FCT16244ETPVCT.pdf
- Description:
- BUS DRIVER, FCT SERIES
- Quantity:
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Inventory:6,000
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Product details
Overview
CY74FCT16244ETPVCT from Texas Instruments is a 16-bit non-inverting 3-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 5V ±10%, and features typical output skew <250 ps. It is used in industrial backplane driving where low ground bounce (<1.0V) and noise immunity are critical.
For engineers reviewing the CY74FCT16244ETPVCT datasheet, CY74FCT16244ETPVCT pinout, CY74FCT16244ETPVCT application, or CY74FCT16244ETPVCT equivalent, key selection criteria include output drive strength (64 mA sink), Ioff-enabled power-down protection, flow-through pinout for PCB layout simplification, industrial temperature range (–40°C to +85°C), and SSOP-48 package compatibility with high-density routing.
Technical Context
This device implements four independent 4-bit groups of non-inverting buffers, each controlled by dedicated active-low 3-state enable inputs (1OE–4OE). Its Ioff circuitry disables outputs during power-down to prevent current backflow, enabling safe hot-insertion in live systems.
The CY74FCT16244ETPVCT uses standard FCT logic architecture with TTL-compatible input thresholds (VIH = 2.0 V, VIL = 0.8 V), edge-rate control for reduced switching noise, and flow-through pinout that aligns inputs and outputs on opposite sides of the SSOP-48 package to minimize trace crossovers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - ensures compatibility with legacy 5-V TTL and LVTTL systems without level-shifting. |
| Sink/Source Drive | 64 mA / 32 mA - enables direct driving of high-capacitance loads (e.g., >100 pF traces) and low-impedance backplanes. |
| Propagation Delay | 1.5–6.5 ns - supports high-speed data transfer up to ~150 MHz in point-to-point configurations. |
| Output Skew | <250 ps - guarantees tight timing alignment across all 16 outputs, critical for parallel bus integrity. |
| Ioff Support | Yes - blocks current flow when VCC = 0 V, protecting powered subsystems during partial system shutdown. |
| Operating Temp | –40°C to +85°C - qualified for industrial environments including factory automation and telecom infrastructure. |
| ESD Rating | >2000 V HBM - provides robust handling margin during board assembly and field service. |
Pinout & Package
Package: 48-pin SSOP (O48), 300-mil body width, 0.635 mm pitch, JEDEC MO-153 compliant. Pin count and physical layout match CY74FCT16244T family variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data Inputs (Grouped) | Four independent 4-bit input banks; each group shares one OE signal for granular bus control. |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | 3-State Outputs | Non-inverting buffered outputs; high-impedance state activated when corresponding OE = HIGH. |
| 1OE–4OE | Active-Low Output Enables | Per-group control allows 4-bit, 8-bit, or full 16-bit bus operation without external logic. |
| VCC (Pins 24, 48) | Power Supply | Dual VCC pins reduce supply impedance and improve noise rejection across wide bus widths. |
| GND (Pins 1, 25) | Ground Reference | Dual GND pins provide low-inductance return paths, minimizing ground bounce during simultaneous switching. |
Key Features
| Feature | Design Value |
|---|---|
| Ioff partial-power-down | Prevents damaging back-current when VCC = 0 V, enabling safe insertion into live backplanes. |
| Edge-rate control | Reduces EMI and overshoot/undershoot, eliminating need for external series termination in many cases. |
| Flow-through pinout | Input and output pins aligned on opposing sides of SSOP-48 package, simplifying layer stack-up and reducing vias. |
| Low ground bounce | Typical VOLP <1.0 V at 5 V and 25°C - maintains signal integrity during high-current switching events. |
| TTL-compatible inputs | VIH = 2.0 V, VIL = 0.8 V - interoperates directly with legacy 5-V microcontrollers, FPGAs, and ASICs. |
Applications
| Memory Interface Driver | Industrial Backplane Buffer |
|---|---|
Use Scenario: Driving address/data lines between a microcontroller and SRAM or Flash memory in an industrial PLC. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing level-consistent, low-skew signal amplification with per-bank enable control. Use Value: Enables clean 16-bit parallel access at >20 MHz while supporting memory isolation during DMA cycles via OE control. | Use Scenario: Interfacing multiple FPGA mezzanine cards to a central 16-bit control bus in a modular test system. IC Role / Device Role / Timing Role: High-drive bus transceiver ensuring signal integrity across 10+ inch FR-4 traces with >80 pF load capacitance. Use Value: 64 mA sink capability maintains VOL ≤ 0.55 V under heavy capacitive loading, preventing logic errors at bus endpoints. |
| Legacy System Bus Extender | Hot-Swappable Module Interface |
Use Scenario: Extending a 5-V TTL CPU bus to remote I/O modules over ribbon cable in factory automation equipment. IC Role / Device Role / Timing Role: Directionless line driver maintaining signal fidelity across 1–2 meter interconnects with minimal added jitter. Use Value: Edge-rate control and <250 ps skew preserve setup/hold margins for synchronous peripherals operating at 10–25 MHz. | Use Scenario: Enabling safe insertion/removal of daughterboards in a powered chassis without disrupting main controller operation. IC Role / Device Role / Timing Role: Ioff-enabled buffer isolating unpowered module signals from live backplane voltage rails. Use Value: Prevents reverse current injection into powered subsystems, eliminating risk of latch-up or supply rail collapse during hot-swap events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162244TPVCT | Balanced 24 mA output drivers; lower ground bounce (<0.6 V); no Ioff support. | Optimized for transmission-line driving (e.g., LVDS stubs, unterminated traces); less suitable for partial-power-down systems. | Select when minimizing undershoot on long traces is prioritized over hot-swap safety. |
| CY74FCT162H244TPVCT | Incorporates bus-hold inputs (no external pull-ups); same 24 mA drive; includes Ioff. | Eliminates floating-input risk in sparse-bus or low-activity systems; adds ~50 µA input bias per held pin. | Choose when input termination is impractical due to board space or cost constraints. |
Compared with CY74FCT162244TPVCT and CY74FCT162H244TPVCT, the CY74FCT16244ETPVCT uniquely combines highest sink drive (64 mA), Ioff, and industrial-grade noise control-making it optimal for demanding backplane and memory-driving roles where both strength and power-state safety are required.
Availability
CY74FCT16244ETPVCT is available at Aetrix Electronics and suitable for industrial backplane buffering, memory interface extension, and legacy TTL bus driving requiring stable component supply across extended lifecycle programs.
Supply support for CY74FCT16244ETPVCT 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.
The CY74FCT16244E series belongs to TI's Fast CMOS Technology (FCT) logic portfolio, engineered specifically for high-speed, low-noise 5-V bus interfacing in industrial control and computing infrastructure.
FAQ
What is the maximum output sink current specification for CY74FCT16244ETPVCT?
The CY74FCT16244ETPVCT is rated for 64 mA maximum sink current per output pin under specified conditions (VCC = min, IOL = 64 mA, VOL ≤ 0.55 V). This value is confirmed in the "Output Drive Characteristics" table of the official datasheet and enables reliable driving of high-capacitance loads such as backplane traces or multiple TTL inputs. The CY74FCT16244ETPVCT maintains this rating across its full industrial temperature range.
Does CY74FCT16244ETPVCT support partial-power-down operation?
Yes, CY74FCT16244ETPVCT supports partial-power-down operation via its Ioff circuitry. When VCC = 0 V, the outputs are disabled and high-impedance, preventing damaging current backflow from live system buses into the unpowered device. This feature is explicitly documented in the Functional Description and Electrical Characteristics sections of the datasheet and is validated for use in hot-swap and modular system architectures.
What package type and dimensions does CY74FCT16244ETPVCT use?
CY74FCT16244ETPVCT uses a 48-pin SSOP (Shrink Small Outline Package), designated O48, with 300-mil body width and 0.635 mm lead pitch. Its mechanical drawing conforms to JEDEC MO-153, and dimensions are fully specified in TI's MTSS003D mechanical data sheet. The package includes dual VCC and GND pins to reduce supply inductance and improve noise performance.
How does the flow-through pinout of CY74FCT16244ETPVCT benefit PCB layout?
The flow-through pinout of CY74FCT16244ETPVCT places inputs and corresponding outputs on opposite sides of the SSOP-48 package (e.g., A1–A4 on left, Y1–Y4 on right), enabling straight-line trace routing with minimal layer changes or vias. This reduces crosstalk, simplifies differential pair separation, and improves signal integrity in dense 16-bit bus layouts-particularly valuable in industrial control boards where routing density and EMI resilience are critical.
What is the typical output skew specification for CY74FCT16244ETPVCT?
The typical output skew for CY74FCT16244ETPVCT is less than 250 ps, defined as the timing mismatch between any two outputs switching in the same direction within the same package. This parameter is ensured by design and verified across process/voltage/temperature corners. Low skew preserves setup/hold timing margins in parallel bus applications such as memory addressing or synchronized data capture, where simultaneous edge alignment is essential.
CY74FCT16244ETPVCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
CY74FCT16244ETPVCT FAQ
1.How can I place an order for CY74FCT16244ETPVCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16244ETPVCT 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 CY74FCT16244ETPVCT reliable?
The price and inventory of CY74FCT16244ETPVCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16244ETPVCT is usually 5 days.
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CY74FCT16244ETPVCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16244ETPVCT 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 CY74FCT16244ETPVCT?
For technical support, including CY74FCT16244ETPVCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16244ETPVCT requirements.
6.How does Aetrix verify that CY74FCT16244ETPVCT is sourced from the original manufacturer or authorized distributors?
All CY74FCT16244ETPVCT 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 CY74FCT16244ETPVCT meets industry standards.
7.What is the process for return or replacement of CY74FCT16244ETPVCT?
All CY74FCT16244ETPVCT units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16244ETPVCT, 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 CY74FCT16244ETPVCT part is unused and in its original packaging.
Return procedure for CY74FCT16244ETPVCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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