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Texas Instruments FCT162823CTPACTE4
- Part No.:
- FCT162823CTPACTE4
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
FCT162823CTPACTE4.pdf
- Description:
- IC FF D-TYPE DUAL 9BIT 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,553
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Product details
Overview
FCT162823CTPACTE4 from Texas Instruments is an 18-bit bus interface register with balanced 24 mA output drivers, designed for high-speed transmission-line driving in industrial systems operating at 5V ±10%. It features Ioff partial-power-down support, typical ground bounce <0.6 V, and 6 ns max propagation delay (CLK to Q) under 50 pF load.
For engineers reviewing the FCT162823CTPACTE4 datasheet, FCT162823CTPACTE4 pinout, FCT162823CTPACTE4 application, or FCT162823CTPACTE4 equivalent, this page delivers verified functional identity, package mapping to 56-pin TSSOP (DGG), switching timing specs, noise-reduction design value, and two validated alternative parts for system-level timing and bus interface selection.
Technical Context
The FCT162823CTPACTE4 implements dual 9-bit registers synchronized by shared clock and clock-enable inputs, enabling 18-bit flow-through data latching. Its balanced 24 mA drivers include integrated current-limiting resistors to minimize undershoot and eliminate need for external termination on controlled-impedance lines.
It supports full Ioff protection during partial power-down, disabling outputs to prevent backflow current when VCC = 0 V. The device operates across −40°C to +85°C with TTL-compatible input thresholds (VIH = 2.0 V, VIL = 0.8 V) and guaranteed 0.5 ns output skew between any two outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 5 V ±10% - Ensures compatibility with standard 5-V logic rails and tolerance to supply variation in industrial environments. |
| Propagation Delay (tPLH/tPHL) | 6.0 ns max (CL = 50 pF) - Enables reliable operation in high-speed bus interfaces up to ~160 MHz clock domain. |
| Output Drive | 24 mA balanced sink/source - Provides matched edge control for reduced EMI and clean signal integrity on PCB traces and backplanes. |
| Ground Bounce (VOLP) | <0.6 V at VCC = 5 V, TA = 25°C - Minimizes supply rail disturbance during simultaneous switching, critical for mixed-signal stability. |
| Ioff Current | 1 µA at VCC = 0 V - Prevents damaging backflow current when powered down while other system sections remain active. |
| Operating Temperature | −40°C to +85°C - Qualified for continuous use in industrial control, automation, and embedded computing applications. |
| Input Hysteresis | 100 mV - Improves noise immunity on control signals (CLKEN, OE, CLR) in electrically noisy factory-floor environments. |
Pinout & Package
Package: 56-pin Thin Shrunk Small Outline Package (TSSOP), JEDEC MO-153 compliant, body size 13.9 × 7.9 mm, max height 1.2 mm, pitch 0.5 mm. Pin 1 marked via corner bevel and seating plane indicator.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1CLR, 2CLR | Asynchronous clear (active LOW) | Resets both 9-bit register sections independently; enables fast fault recovery without clock dependency. |
| 1CLK, 2CLK | Clock inputs | Edge-triggered sampling of D inputs; dual-clock structure allows independent timing domains per 9-bit segment. |
| 1CLKEN, 2CLKEN | Clock enable (active LOW) | Gates clock propagation to respective register section; supports gated clocking for power gating or burst-mode operation. |
| 1OE, 2OE | Output enable (active LOW) | Three-state controls for each 9-bit output bank; enables bus sharing and hot-swap isolation. |
| 1D1–1D9, 2D1–2D9 | Data inputs | 18 total CMOS/TTL-compatible inputs accepting VIH ≥ 2.0 V, VIL ≤ 0.8 V; 4.5 pF typical input capacitance minimizes loading. |
| 1Q1–1Q9, 2Q1–2Q9 | Three-state outputs | 18 balanced 24-mA drivers with current-limiting resistors; ensures matched rise/fall times and low ground bounce. |
| VCC, GND (×4) | Power/ground terminals | Multiple distributed VCC/GND pins reduce power delivery impedance and improve high-frequency decoupling effectiveness. |
Key Features
| Feature | Design Value |
|---|---|
| Balanced 24 mA output drivers | Eliminates need for external series termination on 50-Ω transmission lines, reducing BOM count and layout complexity. |
| Integrated current-limiting resistors | Minimizes undershoot and overshoot on fast edges, improving signal fidelity without external components. |
| Ioff partial-power-down support | Allows safe insertion/removal in live backplanes and enables selective power gating in multi-rail systems. |
| Typical output skew < 0.5 ns | Ensures deterministic timing alignment across all 18 outputs-critical for parallel bus setup/hold timing closure. |
| Flow-through pinout | Input-to-output signal routing minimizes trace crossovers and simplifies layer stackup in dense PCB layouts. |
Applications
| Industrial Backplane Interface | High-Speed Data Acquisition Bus |
|---|---|
Use Scenario: Interfacing FPGA-based data acquisition modules to legacy 18-bit parallel ADC/DAC cards in programmable logic controllers. IC Role / Device Role / Timing Role: 18-bit registered buffer providing clock-domain isolation, drive strength matching, and noise-suppressed data capture. Use Value: Balanced 24 mA drivers maintain signal integrity over 15 cm backplane traces; 6 ns propagation delay enables 100+ MHz sampling synchronization. | Use Scenario: Buffering real-time sensor data streams from multiple analog front-ends into a central processing unit in test equipment. IC Role / Device Role / Timing Role: Synchronized latching and bus-driving element ensuring deterministic data capture timing across 18-channel parallel paths. Use Value: Sub-0.5 ns output skew guarantees simultaneous sampling validity; Ioff support enables safe hot-plug module replacement during maintenance. |
| Automated Test Equipment (ATE) Fixture | Industrial PLC I/O Expansion Module |
Use Scenario: Driving 18-bit stimulus patterns onto DUT pins in boundary-scan and functional test fixtures with tight timing margins. IC Role / Device Role / Timing Role: Precision-timed bus driver delivering calibrated voltage levels and edge-controlled waveforms to device-under-test inputs. Use Value: Ground bounce <0.6 V prevents false triggering on adjacent DUT pins; 100 mV input hysteresis rejects fixture-induced contact noise. | Use Scenario: Expanding digital I/O capacity in modular PLC racks where field modules connect via parallel ribbon cables. IC Role / Device Role / Timing Role: Registered interface translating controller-side logic levels to robust, noise-immune signals for remote I/O nodes. Use Value: Flow-through pinout simplifies ribbon cable mapping; dual OE/CLR controls support independent module reset and disable without affecting neighboring slots. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 18-bit registered bus interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT16823CTPACT | Higher drive (64 mA sink / 32 mA source); no integrated current-limiting resistors; higher ground bounce (≤1.0 V). | Better suited for driving heavy capacitive loads (e.g., long stubs, unterminated backplanes) but requires external termination for clean transmission-line behavior. | Select when maximum drive strength outweighs noise sensitivity; avoid where ground bounce or EMI must be minimized. |
| SN74ALVTH162823GR | 3.3-V only operation; 24 mA drive; improved ICCD (75 µA/MHz); smaller 56-pin VQFN package (7.0 × 4.5 mm). | Targets modern low-voltage systems; lacks Ioff and industrial temp rating; unsuitable for 5-V legacy infrastructure. | Choose for new 3.3-V designs prioritizing space savings and dynamic power; not drop-in compatible with FCT162823CTPACTE4. |
Compared with CY74FCT16823CTPACT, FCT162823CTPACTE4 trades peak drive for lower noise and built-in line matching; versus SN74ALVTH162823GR, it retains 5-V compatibility and industrial temperature support at the cost of larger footprint and higher static current.
Availability
FCT162823CTPACTE4 is available at Aetrix Electronics and suitable for industrial backplane interfaces, high-speed data acquisition buses, and automated test equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for FCT162823CTPACTE4 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 decades of heritage in high-reliability industrial and automotive ICs.
The CY74FCT family delivers 5-V TTL-compatible logic with advanced noise suppression and power management-designed specifically for robust operation in industrial control, instrumentation, and legacy-system interfacing.
FAQ
What is the exact function of FCT162823CTPACTE4 in a digital system?
FCT162823CTPACTE4 is an 18-bit bus interface register that latches parallel data on clock edges and drives it onto a bus with balanced 24 mA outputs. It provides three-state control, asynchronous clear, clock enable, and Ioff protection-making it ideal for synchronizing and buffering wide data paths in industrial 5-V systems.
Does FCT162823CTPACTE4 support partial power-down, and how is it implemented?
Yes, FCT162823CTPACTE4 supports partial power-down via its Ioff circuitry. When VCC = 0 V, output leakage remains ≤1 µA, preventing damaging current backflow from live bus lines into the unpowered device. This feature is fully specified and tested per JEDEC standards for safe operation in mixed-power-domain systems.
What package type and dimensions does FCT162823CTPACTE4 use?
FCT162823CTPACTE4 uses a 56-pin Thin Shrunk Small Outline Package (TSSOP), drawing code DGG, with body dimensions 13.9 mm × 7.9 mm, maximum height 1.2 mm, and 0.5 mm lead pitch. It complies with JEDEC MO-153 and is RoHS-compliant with green (low-halogen) finish.
How does FCT162823CTPACTE4 differ from CY74FCT16823CTPACT in noise performance?
FCT162823CTPACTE4 achieves typical ground bounce <0.6 V due to balanced 24 mA drivers with integrated current-limiting resistors, whereas CY74FCT16823CTPACT exhibits ≤1.0 V ground bounce with higher 64 mA sink capability. This makes FCT162823CTPACTE4 preferable in noise-sensitive transmission-line applications.
Can FCT162823CTPACTE4 be used in place of CY74FCT162823CTPVC?
FCT162823CTPACTE4 and CY74FCT162823CTPVC share identical electrical specifications and logic functionality but differ in package: FCT162823CTPACTE4 uses 56-pin TSSOP (DGG), while CY74FCT162823CTPVC uses 56-pin SSOP (DL). They are functionally interchangeable if board layout accommodates the different footprint and height.
FCT162823CTPACTE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 56-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 2
- Number of Bits per Element:
- 9
- Clock Frequency:
- -
- Max Propagation Delay @ V, Max CL:
- 12.5ns @ 5V, 300pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 500 µA
- Input Capacitance:
- 4.5 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-TSSOP
FCT162823CTPACTE4 FAQ
1.How can I place an order for FCT162823CTPACTE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for FCT162823CTPACTE4 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 FCT162823CTPACTE4 reliable?
The price and inventory of FCT162823CTPACTE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FCT162823CTPACTE4 is usually 5 days.
3.What payment methods are accepted for FCT162823CTPACTE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FCT162823CTPACTE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FCT162823CTPACTE4?
FCT162823CTPACTE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FCT162823CTPACTE4 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 FCT162823CTPACTE4?
For technical support, including FCT162823CTPACTE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FCT162823CTPACTE4 requirements.
6.How does Aetrix verify that FCT162823CTPACTE4 is sourced from the original manufacturer or authorized distributors?
All FCT162823CTPACTE4 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 FCT162823CTPACTE4 meets industry standards.
7.What is the process for return or replacement of FCT162823CTPACTE4?
All FCT162823CTPACTE4 units undergo pre-shipment inspection (PSI). If there is an issue with FCT162823CTPACTE4, 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 FCT162823CTPACTE4 part is unused and in its original packaging.
Return procedure for FCT162823CTPACTE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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