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Texas Instruments CY74FCT16823CTPVC
- Part No.:
- CY74FCT16823CTPVC
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16823CTPVC.pdf
- Description:
- IC FF D-TYPE DUAL 9BIT 56SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,536
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Product details
Overview
CY74FCT16823CTPVC from Texas Instruments is an 18-bit bus interface register with dual 9-bit sections, designed for high-speed industrial systems requiring wide data path registration and parity support. It features 5V ±10% supply operation, 64 mA sink / 32 mA source drive strength, typical output skew <250 ps, and Ioff partial-power-down capability. It is used in backplane-driven computing and telecom control modules where low ground bounce and noise-immune timing are critical.
For engineers reviewing the CY74FCT16823CTPVC datasheet, CY74FCT16823CTPVC pinout, CY74FCT16823CTPVC application, or CY74FCT16823CTPVC equivalent, key selection criteria include its 6.0 ns max CLK-to-Q propagation delay (CL = 50 pF), SSOP-56 package with 300-mil body width, industrial −40°C to +85°C temperature range, and compatibility with TTL-level inputs driving 5V CMOS loads.
Technical Context
The CY74FCT16823CTPVC implements two synchronized 9-bit registers sharing common clock enable (CLKEN), asynchronous clear (CLR), and output enable (OE) controls - enabling 18-bit flow-through data latching with minimal routing complexity. Its edge-rate-controlled outputs reduce simultaneous switching noise, while Ioff circuitry prevents backflow current during partial power-down states.
It operates strictly at VCC = 5V ±10%, supports TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max), and delivers rail-to-rail three-state outputs with guaranteed VOL ≤ 0.55 V at 64 mA sink and VOH ≥ 2.0 V at 32 mA source - making it suitable for driving high-capacitance backplanes without external termination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5V ±10% - fixed single-supply operation; no dual-rail or voltage translation required |
| Propagation Delay (CLK→Q) | Max 6.0 ns at CL = 50 pF - enables sub-167 MHz synchronous register operation |
| Output Drive | 64 mA sink / 32 mA source - sufficient to drive unterminated 50-Ω transmission lines or >30-pF capacitive loads |
| Output Skew | <250 ps typical - ensures deterministic timing across all 18 outputs for parallel bus integrity |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded control and base station applications |
| Ioff Support | Yes - disables outputs when VCC = 0 V, preventing current backflow in hot-swap or partial-power-down systems |
| Input Hysteresis | 100 mV - improves noise immunity on slow or noisy control signals like CLKEN and OE |
Pinout & Package
Package: 56-pin SSOP (O56), 300-mil body width, 25-mil pitch, 1.2 mm max height. Pin layout follows flow-through architecture to minimize trace crossovers and simplify PCB routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1CLR, 2CLR | Asynchronous Clear (Active LOW) | Resets both 9-bit sections independently; pulse width ≥3.3 ns required |
| 1CLK, 2CLK | Clock Inputs | Edge-triggered sampling of D inputs; min pulse width 3.3 ns HIGH/LOW |
| 1CLKEN, 2CLKEN | Clock Enable (Active LOW) | Gates clock propagation; setup/hold times relative to CLK defined |
| 1OE, 2OE | Output Enable (Active LOW) | Controls three-state output drivers; enable/disable times ≤6.5 ns (CL=50 pF) |
| 1D1–1D9, 2D1–2D9 | Data Inputs | TTL-compatible inputs; VIH ≥2.0 V, VIL ≤0.8 V, CIN ≤6.0 pF |
| 1Q1–1Q9, 2Q1–2Q9 | Three-State Outputs | CMOS-compatible outputs; VOL ≤0.55 V @ 64 mA, VOH ≥2.0 V @ 32 mA |
| VCC, GND | Power & Ground | Dual VCC/GND pairs per side (pins 13/14, 27/28, 40/41, 53/54) reduce switching noise and IR drop |
Key Features
| Feature | Design Value |
|---|---|
| Edge-rate controlled outputs | Reduces simultaneous switching noise (SSN) and EMI emissions without external series resistors |
| Ioff partial-power-down support | Prevents damaging backflow current when VCC is off but I/Os remain biased - essential for hot-plug systems |
| Flow-through pinout | Input-to-output signal path alignment minimizes layer transitions and stub lengths on dense PCBs |
| Low ground bounce (VOLP) | Typical <1.0 V at VCC = 5 V, TA = 25°C - maintains logic integrity under heavy switching loads |
| Industrial temperature rating | Validated operation from −40°C to +85°C - suitable for uncontrolled ambient environments |
Applications
| Telecom Line Card Control | Industrial PLC I/O Module |
|---|---|
Use Scenario: Latching status and configuration data between FPGA-based control logic and multi-channel analog/digital I/O banks in modular PLC chassis. IC Role / Device Role / Timing Role: 18-bit registered interface buffer synchronizing parallel bus transfers between isolated domains with precise clock domain crossing. Use Value: Ensures setup/hold compliance across variable trace lengths and eliminates metastability risk via deterministic 6.0 ns propagation window. |
Use Scenario: Capturing sensor readouts and actuator command words in real-time motion control subsystems operating in electrically noisy factory environments. IC Role / Device Role / Timing Role: High-noise-immunity bus register providing glitch-free data capture with hysteresis-enhanced CLKEN and OE inputs. Use Value: Delivers <250 ps output skew and <1.0 V ground bounce to preserve signal integrity across 18-bit parallel feedback paths. |
| Backplane-Based Server Management | Legacy Bus Bridge Interface |
Use Scenario: Interfacing baseboard management controller (BMC) to hot-swap FRU status registers over a shared 18-bit system management bus. IC Role / Device Role / Timing Role: Three-state register enabling bidirectional data isolation and dynamic bus arbitration in multi-master topologies. Use Value: Ioff support allows safe insertion/removal of FRUs while BMC remains powered - no bus contention or latch-up risk. |
Use Scenario: Translating legacy TTL-level control signals (e.g., ISA or VME bus strobes) into clean, slew-controlled CMOS-compatible timing for modern microcontroller peripherals. IC Role / Device Role / Timing Role: Level-shifting and noise-filtering register stage that conditions slow-rising control edges before entering sensitive logic blocks. Use Value: 100 mV input hysteresis and edge-rate control suppress false triggering from EMI-coupled strobes or long cable runs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 18-bit register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT16823ATPACT | Slower 10.0 ns max CLK→Q delay; TSSOP-56 (240-mil) package; same electrical specs otherwise | Better suited for cost-sensitive, lower-speed designs where board space is constrained | Select when timing budget allows ≥10 ns latency and PCB real estate favors narrow-body TSSOP |
| CY74FCT162823CTPVC | 24 mA balanced drivers; lower ground bounce (<0.6 V); reduced system switching noise; different output drive profile | Optimized for transmission-line driving (e.g., LVDS stubs, point-to-point buses) rather than backplane loading | Select when driving controlled-impedance traces instead of high-C loads; not interchangeable due to drive strength mismatch |
Compared with CY74FCT16823ATPACT, the CY74FCT16823CTPVC offers tighter timing for high-throughput systems; compared with CY74FCT162823CTPVC, it provides higher sink current for legacy backplane compatibility but less optimized line-driving behavior.
Availability
CY74FCT16823CTPVC is available at Aetrix Electronics and suitable for industrial PLC I/O modules, telecom line card control interfaces, and backplane-based server management systems requiring stable component supply, long-term lifecycle assurance, and consistent SSOP-56 packaging.
Supply support for CY74FCT16823CTPVC 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 connectivity solutions for industrial, automotive, and communications markets.
The CY74FCT16823CTPVC belongs to TI's FCT logic family - engineered for high-speed, low-noise 5V digital interfacing in mission-critical industrial and telecom infrastructure equipment.
FAQ
What is the maximum clock frequency supported by CY74FCT16823CTPVC?
The CY74FCT16823CTPVC has a maximum CLK-to-Q propagation delay of 6.0 ns under CL = 50 pF conditions, supporting reliable operation up to approximately 167 MHz in ideal synchronous systems. Real-world frequency limits depend on board layout, load capacitance, and setup/hold margins - design validation at target clock rates is recommended using the device's specified tSU = 2.0 ns and tH = 1.5 ns timing parameters. The CY74FCT16823CTPVC does not specify a hard maximum frequency but relies on these AC characteristics for timing closure.
Does CY74FCT16823CTPVC support mixed-voltage operation or level translation?
No, the CY74FCT16823CTPVC operates exclusively at VCC = 5V ±10% and is not designed for mixed-voltage or level-translating applications. Its inputs accept TTL-compatible thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V), and outputs swing rail-to-rail within the 5V supply domain. It cannot interface directly with 3.3V or 1.8V logic families without external translation circuitry. The CY74FCT16823CTPVC is intended for homogeneous 5V systems requiring robust noise immunity and high drive strength.
Can CY74FCT16823CTPVC be used in hot-swap applications?
Yes, the CY74FCT16823CTPVC includes Ioff circuitry that disables outputs when VCC = 0 V, preventing damaging current backflow through the device during live insertion or removal. This feature makes it suitable for hot-swap applications such as modular telecom line cards or field-replaceable units in server backplanes - provided all I/O pins remain within −0.5 V to +7.0 V absolute maximum ratings during power transitions. The CY74FCT16823CTPVC must be powered only after mechanical connection is complete and before asserting signals.
What is the meaning of "flow-through pinout" for CY74FCT16823CTPVC?
The flow-through pinout of the CY74FCT16823CTPVC arranges inputs and corresponding outputs on opposite sides of the SSOP-56 package (e.g., D1 near Pin 1, Q1 near Pin 56), enabling straight-line PCB trace routing with minimal layer changes or vias. This layout reduces signal stubs, crosstalk, and impedance discontinuities - especially valuable in high-density 18-bit parallel bus designs. Unlike folded or interleaved layouts, flow-through simplifies layout verification and improves timing predictability across all channels of the CY74FCT16823CTPVC.
How does CY74FCT16823CTPVC handle ground bounce (VOLP)?
The CY74FCT16823CTPVC specifies typical ground bounce (VOLP) <1.0 V at VCC = 5 V and TA = 25°C, achieved through edge-rate control and balanced output driver design. This low VOLP ensures output logic LOW levels remain below 0.55 V even under full 64 mA sink load, preserving noise margins in electrically noisy environments. The CY74FCT16823CTPVC achieves this without requiring external series resistors or complex layout mitigation - making it suitable for direct connection to high-capacitance backplanes and legacy bus structures.
CY74FCT16823CTPVC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 56-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Bulk
- 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 @ 300pF
- 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
CY74FCT16823CTPVC FAQ
1.How can I place an order for CY74FCT16823CTPVC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16823CTPVC 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 CY74FCT16823CTPVC reliable?
The price and inventory of CY74FCT16823CTPVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16823CTPVC is usually 5 days.
3.What payment methods are accepted for CY74FCT16823CTPVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16823CTPVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT16823CTPVC?
CY74FCT16823CTPVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16823CTPVC 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 CY74FCT16823CTPVC?
For technical support, including CY74FCT16823CTPVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16823CTPVC requirements.
6.How does Aetrix verify that CY74FCT16823CTPVC is sourced from the original manufacturer or authorized distributors?
All CY74FCT16823CTPVC 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 CY74FCT16823CTPVC meets industry standards.
7.What is the process for return or replacement of CY74FCT16823CTPVC?
All CY74FCT16823CTPVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16823CTPVC, 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 CY74FCT16823CTPVC part is unused and in its original packaging.
Return procedure for CY74FCT16823CTPVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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