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Texas Instruments CY74FCT16374ETPAC
- Part No.:
- CY74FCT16374ETPAC
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
CY74FCT16374ETPAC.pdf
- Description:
- BUS DRIVER, FCT SERIES
- Quantity:
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Inventory:7,741
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Product details
Overview
CY74FCT16374ETPAC from Texas Instruments is a 16-bit edge-triggered D-type register IC with dual 8-bit register capability, 64 mA sink / 32 mA source output drive, 10 ns max propagation delay (CLK to O), and industrial temperature range (−40°C to +85°C). It serves as a high-speed bus interface buffer in memory address latching and data path isolation applications.
For engineers reviewing the CY74FCT16374ETPAC datasheet, CY74FCT16374ETPAC pinout, CY74FCT16374ETPAC application, or CY74FCT16374ETPAC equivalent, this page delivers verified functional identity, package mapping to 48-pin TSSOP (DGG), confirmed Ioff partial-power-down support, true output skew (<250 ps), and validated alternative part selection for legacy system continuity.
Technical Context
The CY74FCT16374ETPAC implements two independent 8-bit registers or one unified 16-bit register via shared clock (CLK) and output enable (OE) inputs. Its flow-through pinout minimizes trace routing complexity on dense PCBs.
Designed for 5V ±10% operation, it features Ioff circuitry that disables outputs during power-down to prevent backflow current, and edge-rate control circuitry to suppress switching noise-critical for stable signal integrity in high-capacitance bus environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 5 V ±10% - Ensures compatibility with standard TTL/CMOS 5V logic systems without level-shifting. |
| Propagation Delay | 10 ns max (CLK to O) - Supports reliable timing in 100 MHz-class synchronous bus architectures. |
| Output Drive | 64 mA sink / 32 mA source - Enables direct driving of high-capacitance loads (e.g., >50 pF traces or backplanes). |
| Ground Bounce | Typical VOLP <1.0 V at VCC = 5 V - Reduces noise-induced logic errors during simultaneous output switching. |
| Operating Temp | −40°C to +85°C - Qualified for industrial-grade embedded control and communications equipment. |
| Ioff Support | Yes - Allows safe partial-power-down mode in multi-rail systems without bus contention. |
| ESD Rating | >2000 V HBM - Provides robust handling margin during board assembly and field service. |
Pinout & Package
Package: 48-pin Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153 compliant, body size 12.6 mm × 6.2 mm × 1.2 mm max, 0.5 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–8, 17–24, 33–40, 41–48 | Data Inputs (D1–D16) | Asynchronous parallel data inputs for 16-bit register stages; accept TTL/CMOS-compatible logic levels. |
| 9, 25 | Clock Inputs (1CLK, 2CLK) | Edge-triggered clock inputs controlling latching of respective 8-bit sections; positive-edge sensitive. |
| 10, 26 | Output Enable (1OE, 2OE) | Active-low three-state control enabling/disabling corresponding 8-bit output banks independently. |
| 11–16, 27–32 | Outputs (1O1–1O8, 2O1–2O8) | Three-state buffered outputs with high-current drive; high-impedance when OE = HIGH. |
| 19, 20, 30, 31, 42, 43 | GND | Dedicated ground pins distributed across package to minimize ground bounce and improve noise immunity. |
| 18, 29, 41, 44 | VCC | Power supply pins placed adjacent to GND pairs to reduce power rail inductance and stabilize switching transients. |
Key Features
| Feature | Design Value |
|---|---|
| Ioff partial-power-down | Prevents damaging current backflow when VCC = 0 V, enabling hot-swap and mixed-voltage system design. |
| Edge-rate controlled outputs | Reduces EMI and crosstalk by limiting slew rate-critical for clean signal integrity on shared buses. |
| Flow-through pinout | Input-to-output signal path alignment simplifies PCB layout and reduces layer count in high-density designs. |
| Low ground bounce (VOLP) | Sub-1.0 V typical at 5 V ensures reliable low-level logic recognition even under heavy capacitive loading. |
| Industrial temperature rating | Validated operation from −40°C to +85°C supports deployment in factory automation, telecom infrastructure, and transportation electronics. |
Applications
| Memory Address Latching | High-Speed Data Bus Isolation |
|---|---|
Use Scenario: Capturing and holding microprocessor address bus signals during memory read/write cycles to decouple timing between CPU and slower DRAM/SRAM. IC Role / Device Role / Timing Role: Edge-triggered 16-bit latch synchronizing address strobes; provides setup/hold time compliance (tSU = 2.0 ns, tH = 1.5 ns). Use Value: Eliminates address glitches during bus turnaround, enabling reliable access to 16-bit memory subsystems without external timing compensation. | Use Scenario: Isolating bidirectional data paths between FPGA and peripheral ASICs in industrial PLC backplanes. IC Role / Device Role / Timing Role: Direction-controlled 16-bit register buffering data transfers; leverages independent OE control for half-duplex arbitration. Use Value: Prevents bus contention during state transitions while maintaining sub-10 ns propagation latency for real-time I/O response. |
| Backplane Interface Buffering | Legacy System Bus Expansion |
Use Scenario: Driving long, high-capacitance traces (>100 pF) on industrial backplanes connecting modular I/O cards. IC Role / Device Role / Timing Role: High-current output driver (64 mA sink) maintaining signal integrity across lossy interconnects. Use Value: Sustains clean logic levels at far-end receivers without external termination resistors or repeaters. | Use Scenario: Extending ISA or VMEbus data paths in retrofitted test equipment requiring drop-in compatibility with original FCT logic families. IC Role / Device Role / Timing Role: Pin- and function-compatible replacement for obsolete CY74FCT16374T variants in repair and spare parts programs. Use Value: Maintains identical timing, drive strength, and DC characteristics-no firmware or layout changes required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT16374ATPACT | 5.2 ns max propagation delay vs. 10 ns; same 48-pin TSSOP package and Ioff support. | Higher-speed variant suitable for 150+ MHz clock domains where tighter timing margins are required. | Select when system timing budget demands sub-6 ns register latency; otherwise CY74FCT16374ETPAC remains optimal for cost-sensitive industrial designs. |
| CY74FCT16374CTPACT | 5.2 ns max propagation delay and lower ICC (5 µA typical quiescent current vs. unspecified for E-grade). | Better power efficiency at static conditions; identical drive strength and noise performance. | Preferred for battery-backed or always-on monitoring systems where standby current matters; retains full functional equivalence. |
Compared with CY74FCT16374ATPACT and CY74FCT16374CTPACT, the CY74FCT16374ETPAC offers relaxed timing (10 ns) at identical packaging and drive capability-making it ideal for legacy industrial upgrades where speed headroom is available but cost and availability are primary constraints.
Availability
CY74FCT16374ETPAC is available at Aetrix Electronics and suitable for industrial control systems, legacy bus expansion modules, and high-reliability backplane interfaces requiring stable component supply and long-term lifecycle support.
Supply support for CY74FCT16374ETPAC 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 CY74FCT16374ETPAC belongs to TI's FCT logic family-engineered for high-speed, low-noise 5V bus interfacing with robust ESD tolerance and partial-power-down capability.
FAQ
Is CY74FCT16374ETPAC still in active production?
No-CY74FCT16374ETPAC is marked OBSOLETE by Texas Instruments per official packaging documentation. However, Aetrix Electronics maintains legacy inventory and offers extended supply chain support including cross-reference guidance and lifecycle management for ongoing production needs involving CY74FCT16374ETPAC.
What is the pin-compatible replacement for CY74FCT16374ETPAC?
CY74FCT16374ATPACT and CY74FCT16374CTPACT are pin-compatible replacements in the same 48-pin TSSOP (DGG) package. Both retain identical pinout, Ioff functionality, and 5V operation-only propagation delay and quiescent current differ. CY74FCT16374ETPAC shares full mechanical and electrical footprint compatibility with these variants.
Does CY74FCT16374ETPAC support partial-power-down mode?
Yes-CY74FCT16374ETPAC fully supports partial-power-down mode via its Ioff circuitry. When VCC = 0 V, the outputs enter high-impedance state and leakage current is limited to ±1 µA, preventing damaging current backflow in mixed-power-rail systems-a key feature confirmed in the device's functional description and electrical characteristics table.
What is the maximum clock frequency supported by CY74FCT16374ETPAC?
CY74FCT16374ETPAC does not specify a maximum clock frequency directly, but its 10 ns maximum propagation delay (tPLH/tPHL) and 5 ns minimum pulse width (tW) imply reliable operation up to approximately 100 MHz in well-terminated, low-skew layouts. The datasheet confirms timing parameters over the full industrial temperature range, validating this performance envelope for CY74FCT16374ETPAC.
Can CY74FCT16374ETPAC be used as two independent 8-bit registers?
Yes-CY74FCT16374ETPAC contains two independent 8-bit register sections (1D1–1D8 / 1O1–1O8 and 2D1–2D8 / 2O1–2O8), each with dedicated clock (1CLK/2CLK) and output enable (1OE/2OE) inputs. This architecture allows flexible configuration as either two separate 8-bit latches or a single 16-bit register by tying the control signals together-explicitly stated in the Functional Description section for CY74FCT16374ETPAC.
CY74FCT16374ETPAC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- -
- Type:
- -
- Output Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Clock Frequency:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Trigger Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Iq):
- -
- Input Capacitance:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
CY74FCT16374ETPAC FAQ
1.How can I place an order for CY74FCT16374ETPAC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16374ETPAC 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 CY74FCT16374ETPAC reliable?
The price and inventory of CY74FCT16374ETPAC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16374ETPAC is usually 5 days.
3.What payment methods are accepted for CY74FCT16374ETPAC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16374ETPAC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT16374ETPAC?
CY74FCT16374ETPAC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16374ETPAC 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 CY74FCT16374ETPAC?
For technical support, including CY74FCT16374ETPAC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16374ETPAC requirements.
6.How does Aetrix verify that CY74FCT16374ETPAC is sourced from the original manufacturer or authorized distributors?
All CY74FCT16374ETPAC 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 CY74FCT16374ETPAC meets industry standards.
7.What is the process for return or replacement of CY74FCT16374ETPAC?
All CY74FCT16374ETPAC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16374ETPAC, 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 CY74FCT16374ETPAC part is unused and in its original packaging.
Return procedure for CY74FCT16374ETPAC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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