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Texas Instruments CY74FCT163500CPVCT
- Part No.:
- CY74FCT163500CPVCT
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
CY74FCT163500CPVCT.pdf
- Description:
- BUS TRANSCEIVER, FCT SERIES
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Inventory:2,000
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Product details
Overview
CY74FCT163500CPVCT from Texas Instruments is an 18-bit registered bus transceiver with dual-directional latched/clocked data flow, 4.6 ns propagation delay (FCT-C speed), 24 mA balanced output drive, and 5 V-tolerant I/O for mixed-voltage system interfacing. It operates across 2.7–3.6 V supply in industrial temperature range (−40°C to +85°C) and supports live insertion via power-off disable outputs.
For engineers reviewing the CY74FCT163500CPVCT datasheet, CY74FCT163500CPVCT pinout, CY74FCT163500CPVCT application, or CY74FCT163500CPVCT equivalent, key selection criteria include bidirectional latch/flip-flop control logic (LEAB/LEBA/CLKAB/CLKBA), OE-driven three-state operation, edge-rate-controlled low-noise switching, and SSOP-56 package compatibility with legacy FCT bus interface designs.
Technical Context
The CY74FCT163500CPVCT integrates dual 18-bit D-type latches and flip-flops to enable transparent, latched, or clocked A↔B data transfer modes. Its functional control relies on independent OEAB/OEBA (output enable), LEAB/LEBA (latch enable), and CLKAB/CLKBA (clock) inputs - each pair governing direction-specific timing behavior and output state retention.
It features 5 V-tolerant CMOS-compatible inputs/outputs, 24 mA sink/source balanced drivers with internal current-limiting resistors, and edge-rate control circuitry that minimizes ground bounce (typical VOLP < 0.5 V) and EMI. The device meets JEDEC JESD-17 latch-up immunity and exceeds MIL-STD-883D Method 3015 ESD rating (>2000 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay (tPLH/tPHL) | 4.6 ns max at VCC = 3.0–3.6 V - enables high-speed synchronous bus handshaking up to 150 MHz clock rate. |
| Supply Voltage Range | 2.7 V to 3.6 V - compatible with 3.3 V logic systems while supporting 5 V-tolerant I/O for voltage translation. |
| Output Drive Strength | ±24 mA - provides robust signal integrity across unterminated PCB traces without external termination resistors. |
| Input Hysteresis | 100 mV - improves noise immunity on slow-rising or noisy control signals like OE/LE/CLK lines. |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded control, backplane, and telecom infrastructure applications. |
| Output Skew | <250 ps typical - ensures deterministic timing alignment across all 18 bits during parallel data transfers. |
| Power-Off Disable | IOFF ≤ ±100 µA at VCC = 0 V - allows safe hot-plug operation without bus contention or back-driving. |
Pinout & Package
Package: 56-pin SSOP (O56), 300-mil body width, 25-mil pitch, JEDEC MO-118 compliant. Pin count and mechanical dimensions match industry-standard 56-lead shrink small-outline packages for drop-in replacement in legacy FCT layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OEAB | A-to-B Output Enable (Active LOW) | Controls three-state output driver on B port; when HIGH, B outputs enter high-impedance mode regardless of latch/clock state. |
| OEBA | B-to-A Output Enable (Active LOW) | Controls three-state output driver on A port; decouples A-side bus during B→A transfer or idle periods. |
| LEAB / LEBA | Latch Enable (Active HIGH) | When HIGH, enables transparent pass-through; when LOW, captures A or B data on subsequent CLKAB/CLKBA edge. |
| CLKAB / CLKBA | Clock Input (Active LOW edge-triggered) | Triggers storage of A or B data into internal register on HIGH-to-LOW transition when corresponding LE is LOW. |
| A1–A18 | A-Side Data I/O | Bi-directional terminals: inputs when driving B port, three-state outputs when B port is enabled and A data is latched/clocked. |
| B1–B18 | B-Side Data I/O | Bi-directional terminals: inputs when driving A port, three-state outputs when A port is enabled and B data is latched/clocked. |
| VCC | Power Supply | Single 2.7–3.6 V supply; powers internal logic and output drivers; supports 5 V-tolerant I/O buffers. |
| GND | Ground Reference | Eight dedicated ground pins distributed across package to minimize simultaneous switching noise and improve return path integrity. |
Key Features
| Feature | Design Value |
|---|---|
| 5 V-Tolerant I/O | Accepts 0–5.5 V input levels and drives 5 V busses while powered from 3.3 V - eliminates level shifters in mixed-voltage backplanes. |
| Power-Off Disable | Outputs go high-impedance when VCC = 0 V - prevents back-driving and bus contention during live insertion or hot-swap events. |
| Edge-Rate Control | Internally limits output slew rate to reduce ground bounce (VOLP) and radiated emissions - simplifies EMI filtering in dense PCB layouts. |
| 24 mA Balanced Drive | Sink and source capability matched within ±10% - ensures symmetrical rise/fall times and reduces duty-cycle distortion on critical clocks or strobes. |
| Industrial Temp Range | Specified and tested from −40°C to +85°C - suitable for uncontrolled environments such as factory automation controllers and outdoor telecom nodes. |
Applications
| Backplane Data Routing | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: High-density modular chassis where CPU and peripheral modules exchange parallel status/control words over shared 18-bit backplane bus. IC Role / Device Role / Timing Role: Bidirectional registered transceiver managing synchronous A↔B data flow between master controller and slave I/O cards using LE/CLK handshaking. Use Value: Enables deterministic timing with 4.6 ns propagation delay and sub-250 ps skew - guarantees setup/hold compliance across 18-bit wide parallel paths at 100+ MHz rates. | Use Scenario: Distributed I/O rack connecting analog/digital field devices to central programmable logic controller via isolated parallel bus. IC Role / Device Role / Timing Role: Voltage-translating bus interface isolating 3.3 V controller domain from 5 V sensor/actuator side while supporting live module replacement. Use Value: 5 V-tolerant I/O and power-off disable allow hot-swap of I/O modules without disrupting controller operation or causing bus contention. |
| Telecom Line Card Interfacing | Legacy System Bus Bridging |
Use Scenario: Interface between FPGA-based packet processor and legacy ASIC-based framer/mapper on line card with separate voltage domains. IC Role / Device Role / Timing Role: Registered transceiver synchronizing burst-mode data transfers between clock domains using independent CLKAB/CLKBA edges. Use Value: Dual-latch architecture supports both transparent and edge-triggered modes - accommodates asynchronous handshake protocols and synchronous clock-domain crossing. | Use Scenario: Migration path from obsolete LCX/LPT logic families to modern 3.3 V systems while retaining existing PCB layout and firmware. IC Role / Device Role / Timing Role: Pin-compatible FCT-C speed replacement with identical 56-pin SSOP footprint and identical functional pin mapping. Use Value: Low-power, drop-in upgrade requiring no schematic or layout changes - maintains backward compatibility while improving noise margin and ESD robustness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 18-bit registered transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74FCT163500CPVCT | Same die, identical electrical specs and pinout; rebranded by TI after Cypress acquisition - fully interchangeable. | No functional difference; used interchangeably in TI's own documentation and ordering systems. | Select SN74FCT163500CPVCT only if sourcing through TI-distributed channels where CY-prefix stock is unavailable. |
| 74ALVC163500DT | Lower drive (±24 mA same), but 1.65–3.6 V supply range; no 5 V tolerance; different timing parameters (tPZH = 6.5 ns max). | Not suitable for 5 V bus translation; requires level-shifting if interfacing with legacy 5 V peripherals. | Choose only for new 1.8/2.5/3.3 V-only designs where 5 V tolerance is unnecessary and lower static power is prioritized. |
Compared with SN74FCT163500CPVCT (identical function and pinout) and 74ALVC163500DT (narrower VCC, no 5 V tolerance), the CY74FCT163500CPVCT uniquely delivers 5 V-tolerant I/O, industrial temp qualification, and proven live-insertion capability - making it the sole choice for mixed-voltage, hot-swap-capable backplane interfaces.
Availability
CY74FCT163500CPVCT is available at Aetrix Electronics and suitable for industrial PLC expansion, telecom line card interfacing, and legacy system bus bridging requiring stable component supply, long-term lifecycle support, and verified pin-compatible replacement capability.
Supply support for CY74FCT163500CPVCT 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 high-reliability industrial and communications ICs.
The CY74FCT163500CPVCT belongs to TI's FCT logic family - engineered for high-speed, low-noise, mixed-voltage bus interfacing in industrial control, telecom infrastructure, and computing backplane applications.
FAQ
What is the maximum operating frequency supported by the CY74FCT163500CPVCT?
The CY74FCT163500CPVCT supports a maximum clock frequency of 150 MHz for CLKAB and CLKBA inputs, as specified in its switching characteristics table. This is achievable under VCC = 3.0–3.6 V and ambient temperatures from −40°C to +85°C. Propagation delay is guaranteed at 4.6 ns (max), enabling reliable timing margins in high-speed synchronous bus architectures using the CY74FCT163500CPVCT.
Does the CY74FCT163500CPVCT support 5 V logic interfacing while powered from 3.3 V?
Yes, the CY74FCT163500CPVCT supports 5 V-tolerant inputs and outputs when powered from 2.7–3.6 V. Its VIH specification extends to 5.5 V and VIL to 0.8 V, allowing direct connection to 5 V busses without external level shifters. This makes the CY74FCT163500CPVCT ideal for voltage translation in mixed-signal systems where legacy 5 V peripherals interface with modern 3.3 V controllers.
Can the CY74FCT163500CPVCT be used in hot-swap applications?
Yes, the CY74FCT163500CPVCT includes power-off disable functionality: when VCC = 0 V, output leakage remains ≤ ±100 µA, placing outputs in high-impedance state. This prevents back-driving and bus contention during live insertion or removal - a core requirement for hot-swap backplane and modular I/O systems using the CY74FCT163500CPVCT.
What is the meaning of "FCT-C speed" for the CY74FCT163500CPVCT?
"FCT-C speed" refers to the fastest propagation delay grade in the TI FCT logic family, with tPLH/tPHL = 4.6 ns (max) for CY74FCT163500CPVCT at VCC = 3.0–3.6 V. This distinguishes it from slower variants like FCT-A (5.1 ns) and confirms its suitability for high-performance timing-critical applications where minimal latency across 18-bit parallel paths is essential - a defining characteristic of the CY74FCT163500CPVCT.
How many ground pins does the CY74FCT163500CPVCT have in its SSOP-56 package?
The CY74FCT163500CPVCT in the 56-pin SSOP (O56) package has eight dedicated GND pins, strategically distributed across the package per the pin configuration diagram. These multiple ground connections reduce simultaneous switching noise and improve signal integrity - a critical design feature confirmed in the CY74FCT163500CPVCT datasheet and mechanical drawings.
CY74FCT163500CPVCT 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:
- -
CY74FCT163500CPVCT FAQ
1.How can I place an order for CY74FCT163500CPVCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT163500CPVCT 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 CY74FCT163500CPVCT reliable?
The price and inventory of CY74FCT163500CPVCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT163500CPVCT is usually 5 days.
3.What payment methods are accepted for CY74FCT163500CPVCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT163500CPVCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT163500CPVCT?
CY74FCT163500CPVCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT163500CPVCT 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 CY74FCT163500CPVCT?
For technical support, including CY74FCT163500CPVCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT163500CPVCT requirements.
6.How does Aetrix verify that CY74FCT163500CPVCT is sourced from the original manufacturer or authorized distributors?
All CY74FCT163500CPVCT 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 CY74FCT163500CPVCT meets industry standards.
7.What is the process for return or replacement of CY74FCT163500CPVCT?
All CY74FCT163500CPVCT units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT163500CPVCT, 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 CY74FCT163500CPVCT part is unused and in its original packaging.
Return procedure for CY74FCT163500CPVCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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