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Texas Instruments 74FCT16823CTPVCTG4
- Part No.:
- 74FCT16823CTPVCTG4
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74FCT16823CTPVCTG4.pdf
- Description:
- IC FF D-TYPE DUAL 9BIT 56SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,621
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Product details
Overview
74FCT16823CTPVCTG4 from Texas Instruments is an 18-bit bus interface register with dual 9-bit sections, designed for high-speed, low-power systems requiring wide data paths and parity support. It features 5V ±10% operation, industrial temperature range (−40°C to +85°C), 64 mA sink / 32 mA source drive capability, typical output skew <250 ps, and Ioff partial-power-down support. It is used in backplane interfaces and high-capacitance load driving applications.
For engineers reviewing the 74FCT16823CTPVCTG4 datasheet, 74FCT16823CTPVCTG4 pinout, 74FCT16823CTPVCTG4 application, or 74FCT16823CTPVCTG4 equivalent, this page delivers verified electrical specs, flow-through pinout mapping, noise-suppressed switching behavior, and direct alternatives for industrial bus interface design.
Technical Context
The 74FCT16823CTPVCTG4 implements two synchronized 9-bit registers sharing common clock enable (CLKEN), asynchronous clear (CLR), and output enable (OE) controls - enabling 18-bit parallel data latching with minimal skew. Its edge-rate control circuitry suppresses ground bounce (typical VOLP <1.0 V at VCC = 5 V) and improves noise immunity during high-speed transitions.
It supports partial-power-down via Ioff, disabling outputs when VCC = 0 V to prevent backflow current. The device operates only at 5V ±10%, with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max) and guaranteed 6.0 ns propagation delay (tPLH/tPHL) under CL = 50 pF / RL = 500 Ω conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - fixed single-rail operation; no 3.3 V or mixed-voltage support. |
| Propagation Delay | 6.0 ns max (CLK to Q, CL = 50 pF) - enables reliable timing in ≥166 MHz synchronous bus systems. |
| Output Drive | 64 mA sink / 32 mA source - sufficient to drive heavy capacitive loads (e.g., >100 pF traces or unterminated backplanes). |
| Output Skew | <250 ps typical - ensures tight timing alignment across all 18 outputs for parallel data integrity. |
| Ioff Support | Active at VCC = 0 V - prevents damaging current flow during hot-insertion or partial system power-down. |
| Operating Temperature | −40°C to +85°C - qualified for industrial environments without derating. |
| ESD Rating | >2000 V HBM - robust handling in manufacturing and field deployment. |
Pinout & Package
74FCT16823CTPVCTG4 is housed in a 56-lead SSOP (Shrink Small Outline Package), 300-mil body width, 0.635 mm pitch, JEDEC MO-152 compliant, with 1.2 mm max height. Pin 1 marked by notch or beveled corner; seating plane defined per JEDEC MS-012.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1CLR, 2CLR | Asynchronous Clear (Active LOW) | Resets both 9-bit register sections independently; overrides clock and enable logic. |
| 1CLK, 2CLK | Clock Inputs | Edge-triggered sampling of D inputs; dual clocks allow staggered or isolated register updates. |
| 1CLKEN, 2CLKEN | Clock Enable (Active LOW) | Gates clock propagation - enables synchronous gating without clock tree redesign. |
| 1OE, 2OE | Output Enable (Active LOW) | Three-state control per 9-bit section; supports bus sharing and hot-swap isolation. |
| 1D1–1D9, 2D1–2D9 | Data Inputs | 18 total CMOS/TTL-compatible inputs; flow-through layout minimizes trace crossovers. |
| 1Q1–1Q9, 2Q1–2Q9 | Three-State Outputs | 18 buffered, high-drive outputs with controlled edge rates to reduce EMI and ground bounce. |
| VCC, GND | Power & Ground | Dual VCC/GND pairs (pins 24/25, 47/48) - lower impedance supply routing for noise-sensitive operation. |
Key Features
| Feature | Design Value |
|---|---|
| Edge-rate control circuitry | Reduces simultaneous switching noise (SSN) and ground bounce (VOLP <1.0 V), eliminating need for external series resistors on most PCBs. |
| Ioff partial-power-down | Enables safe insertion into live backplanes; outputs enter high-Z state even when VCC = 0 V, preventing bus contention. |
| Flow-through pinout | Input-to-output signal path follows linear left-to-right layout - simplifies layer routing and reduces vias in dense 18-bit bus designs. |
| Balanced 64 mA sink / 32 mA source | Supports asymmetrical load driving (e.g., pull-down dominant termination) while maintaining clean logic thresholds under full load. |
| Industrial temperature range | Validated operation from −40°C to +85°C without performance degradation - suitable for uncontrolled enclosure environments. |
Applications
| Backplane Data Latching | Industrial PLC I/O Expansion |
|---|---|
|
Use Scenario: Latching parallel sensor data from multiple analog input modules onto a shared 18-bit data bus before ADC conversion. IC Role / Device Role / Timing Role: Synchronous 18-bit register providing setup/hold-compliant sampling aligned to system clock domain. Use Value: Ensures deterministic timing across all 18 bits with <250 ps skew, eliminating inter-channel sampling jitter in multi-channel acquisition. |
Use Scenario: Buffering digital output commands from a PLC CPU to distributed I/O racks over long ribbon cables. IC Role / Device Role / Timing Role: High-drive bus interface register driving 50–100 pF cable capacitance with controlled edge rates. Use Value: 64 mA sink capability maintains VOL ≤ 0.55 V even under worst-case capacitive loading, ensuring noise-immune logic levels at remote nodes. |
| Telecom Line Card Interface | Test Equipment Pattern Generation |
|
Use Scenario: Capturing and holding configuration bits for FPGA-based framer ICs on line cards operating in NEBS-compliant enclosures. IC Role / Device Role / Timing Role: Industrial-grade register with Ioff support enabling hot-swap maintenance without powering down adjacent subsystems. Use Value: Prevents backfeed current during module replacement, protecting upstream power supplies and avoiding system resets. |
Use Scenario: Generating precise 18-bit stimulus patterns for ATE systems testing memory controllers or ASICs. IC Role / Device Role / Timing Role: Low-skew, high-speed register delivering deterministic pattern edges with 6.0 ns max tPLH for sub-167 MHz test clocks. Use Value: Guarantees setup/hold margins at 100+ MHz test frequencies due to tight skew and fast enable/disable times (5.5 ns OE→Q). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 18-bit bus interface register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT16823ATPACT | Slower 10 ns propagation delay; TSSOP-56 package (240-mil width, 0.5 mm pitch). | Lower speed margin; better suited for cost-sensitive, space-constrained boards where 100 MHz timing is sufficient. | Select when board layout prioritizes smaller footprint over maximum speed; same logic function and pinout as 74FCT16823CTPVCTG4 but slower timing. |
| 74FCT162823CTPVCT | 24 mA balanced drivers; lower ground bounce (VOLP <0.6 V); includes internal current-limiting resistors. | Optimized for transmission-line driving (e.g., unterminated stubs); reduced need for external termination. | Select when driving controlled-impedance traces or minimizing EMI is critical; not drop-in - output drive strength and noise profile differ. |
Compared with 74FCT16823CTPVCTG4, CY74FCT16823ATPACT trades speed for compactness, while 74FCT162823CTPVCT shifts focus from high-current backplane driving to low-noise point-to-point signaling - each serves distinct signal integrity priorities in industrial bus architecture.
Availability
74FCT16823CTPVCTG4 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, telecom line card interfaces, and automated test equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for 74FCT16823CTPVCTG4 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 experience in industrial-grade interface ICs and timing devices.
The FCT logic family - including 74FCT16823CTPVCTG4 - was engineered for high-speed, low-noise 5V bus interfacing in industrial and telecom infrastructure, emphasizing drive strength, skew control, and power-down safety.
FAQ
What is the maximum clock frequency supported by the 74FCT16823CTPVCTG4?
The 74FCT16823CTPVCTG4 does not specify a maximum clock frequency directly, but its 6.0 ns maximum propagation delay (tPLH/tPHL) and 3.3 ns minimum clock pulse width imply reliable operation up to approximately 167 MHz in ideal conditions. Actual usable frequency depends on board layout, load capacitance, and setup/hold timing margins - design validation at target frequency is required.
Does the 74FCT16823CTPVCTG4 support 3.3 V operation?
No, the 74FCT16823CTPVCTG4 is strictly a 5V device with VCC specification of 5 V ±10% (4.5 V to 5.5 V). It is not 3.3 V tolerant - applying 3.3 V to VCC will result in undefined operation and potential functional failure. For mixed-voltage systems, level-shifting circuitry is required.
How does the Ioff feature work on the 74FCT16823CTPVCTG4?
The Ioff feature on the 74FCT16823CTPVCTG4 disables all outputs when VCC = 0 V, placing them in high-impedance state regardless of input or control pin voltages. This prevents current backflow from powered sections of the bus into the unpowered device - a critical safeguard during hot-swap or partial-power-down scenarios in backplane systems.
Can the 74FCT16823CTPVCTG4 drive a 100 pF load reliably?
Yes - the 74FCT16823CTPVCTG4 is characterized for CL = 300 pF in switching tests and delivers 64 mA sink current. At 100 pF, its 6.0 ns propagation delay and <250 ps output skew remain well within spec, and VOL stays ≤0.55 V, confirming robust drive capability for typical PCB traces and connectors.
Is the 74FCT16823CTPVCTG4 pin-compatible with the 74FCT162823CTPVCT?
No - although both are 56-pin SSOP 18-bit registers, the 74FCT16823CTPVCTG4 and 74FCT162823CTPVCT have different output driver architectures and distinct DC characteristics (e.g., 64/32 mA vs. balanced 24 mA). Their pin functions match, but drive strength, noise behavior, and voltage thresholds differ; PCB layout reuse requires verification of signal integrity and timing margins.
74FCT16823CTPVCTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 56-BSSOP (0.295", 7.50mm 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:
- 6ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 32mA, 64mA
- 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-SSOP
74FCT16823CTPVCTG4 FAQ
1.How can I place an order for 74FCT16823CTPVCTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT16823CTPVCTG4 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 74FCT16823CTPVCTG4 reliable?
The price and inventory of 74FCT16823CTPVCTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT16823CTPVCTG4 is usually 5 days.
3.What payment methods are accepted for 74FCT16823CTPVCTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74FCT16823CTPVCTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74FCT16823CTPVCTG4?
74FCT16823CTPVCTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT16823CTPVCTG4 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 74FCT16823CTPVCTG4?
For technical support, including 74FCT16823CTPVCTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT16823CTPVCTG4 requirements.
6.How does Aetrix verify that 74FCT16823CTPVCTG4 is sourced from the original manufacturer or authorized distributors?
All 74FCT16823CTPVCTG4 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 74FCT16823CTPVCTG4 meets industry standards.
7.What is the process for return or replacement of 74FCT16823CTPVCTG4?
All 74FCT16823CTPVCTG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT16823CTPVCTG4, 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 74FCT16823CTPVCTG4 part is unused and in its original packaging.
Return procedure for 74FCT16823CTPVCTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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