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Texas Instruments CY74FCT16543CTPVC
- Part No.:
- CY74FCT16543CTPVC
- Manufacturer:
- Texas Instruments
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16543CTPVC.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 56SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:297
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Product details
Overview
CY74FCT16543CTPVC from Texas Instruments is a 16-bit high-speed latched transceiver organized as two independent 8-bit D-type latched transceivers, supporting bidirectional data flow with separate Latch Enable (LEAB/LEBA) and Output Enable (OEAB/OEBA) controls per direction. It delivers 64 mA sink / 32 mA source drive, operates at 5V ±10%, and targets industrial backplane and bus interface applications requiring low ground bounce and noise immunity.
For engineers reviewing the CY74FCT16543CTPVC datasheet, CY74FCT16543CTPVC pinout, CY74FCT16543CTPVC application, or CY74FCT16543CTPVC equivalent, key selection criteria include its 5.1 ns propagation delay in transparent mode, Ioff partial-power-down support, 56-pin SSOP package, and compatibility with high-capacitance loads and low-impedance buses.
Technical Context
The CY74FCT16543CTPVC implements dual 8-bit latch architecture with independent A-to-B and B-to-A control paths, each featuring dedicated CEAB/CEBA, LEAB/LEBA, and OEAB/OEBA inputs. Its edge-rate control circuitry limits switching noise, and Ioff functionality disables outputs during power-down to prevent backflow current.
It supports industrial temperature range (−40°C to +85°C), requires VCC = 5V ±10%, and exhibits typical output skew < 250 ps. The device is fully specified for partial-power-down operation and optimized for driving high-capacitance loads and low-impedance backplanes - not transmission lines or bus-hold applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5V ±10% - ensures stable operation across industrial voltage tolerances without external regulation |
| Propagation Delay (A↔B) | 1.5–5.1 ns - enables high-speed synchronous bus interfacing up to ~200 MHz clock-equivalent systems |
| Sink/Source Drive | 64 mA sink / 32 mA source - sufficient to drive terminated 50 Ω backplanes or multiple CMOS/TTL loads |
| Output Skew | <250 ps typical - maintains signal integrity across all 16 bits during parallel data transfer |
| Ioff Support | Yes - prevents damaging current backflow when powered down, enabling hot-swap and partial system shutdown |
| ESD Rating | >2000 V HBM - provides robust handling margin during board assembly and field service |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade embedded control, automation, and communications equipment |
Pinout & Package
Package: 56-pin SSOP (Shrunk Small Outline Package), 300-mil body width, JEDEC MO-118 compliant, 0.630" × 0.370" footprint, 1.2 mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OEAB, 2OEAB, 1OEBA, 2OEBA | A-to-B / B-to-A Output Enable (Active LOW) | Individually disable three-state B or A outputs to isolate bus segments or prevent contention |
| 1CEAB, 2CEAB, 1CEBA, 2CEBA | A-to-B / B-to-A Enable (Active LOW) | Gate data flow direction - must be LOW to allow latching or output buffering in respective direction |
| 1LEAB, 2LEAB, 1LEBA, 2LEBA | A-to-B / B-to-A Latch Enable (Active LOW) | Edge-triggered storage control - LOW-to-HIGH transition captures A or B inputs into latches |
| A1–A8, B1–B8 (x2 sets) | Bidirectional Data Terminals | Shared pins serving as inputs (when enabled for latching) or three-state outputs (when OE active) |
| VCC, GND (x4 each) | Power & Ground | Distributed supply/return pins minimize IR drop and improve noise rejection across wide bus |
Key Features
| Feature | Design Value |
|---|---|
| Ioff partial-power-down | Enables safe integration into mixed-voltage or hot-pluggable systems by disabling outputs at VCC = 0V |
| Edge-rate controlled outputs | Reduces simultaneous switching noise (SSN) and EMI, critical for dense PCB layouts with shared ground planes |
| 64 mA sink capability | Drives heavy capacitive loads (e.g., >100 pF traces) without signal degradation or excessive rise/fall time |
| Typical VOLP <1.0 V | Minimizes ground bounce during high-current switching - preserves logic margins in multi-driver environments |
| Industrial temperature range | Validated operation from −40°C to +85°C supports deployment in factory automation, motor drives, and outdoor infrastructure |
Applications
| Industrial Backplane Interface | Legacy Bus Extension |
|---|---|
Use Scenario: Interfacing microcontroller local bus to a 16-bit ISA-compatible or VME-style backplane with long trace runs and multiple slot loads. IC Role / Device Role: Bidirectional latched transceiver providing level-shifted, noise-immune data coupling between host and peripheral cards. Use Value: 64 mA drive and edge-rate control ensure clean signal integrity over 10+ inch traces; Ioff allows safe card insertion/removal while backplane remains live. | Use Scenario: Extending aging 16-bit parallel control buses (e.g., in test equipment or PLC I/O modules) with added buffering and isolation. IC Role / Device Role: Direction-controlled latch buffer that decouples timing domains and prevents bus contention during read/write arbitration. Use Value: Independent LE/OE controls per 8-bit lane enable selective data capture and output gating - simplifying firmware-driven bus handshaking. |
| High-Density Data Acquisition Hub | Modular Industrial Controller |
Use Scenario: Aggregating sensor data from 16-channel ADCs or digital I/O banks into a central FPGA or DSP subsystem. IC Role / Device Role: Synchronized input latch and output driver for parallel data capture with precise timing alignment. Use Value: 5.1 ns max propagation delay and <250 ps skew guarantee deterministic sampling windows across all channels - essential for coherent multi-channel acquisition. | Use Scenario: Enabling modular CPU, memory, and I/O carrier boards to interconnect via standardized 16-bit parallel mezzanine interfaces. IC Role / Device Role: Reconfigurable transceiver managing bidirectional data flow between processor and expansion modules. Use Value: Dual-lane architecture supports independent control of memory-mapped vs. register-access traffic, reducing software overhead and bus arbitration complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar latched transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162543CTPVC | 24 mA balanced drivers, lower ground bounce (VOLP <0.6 V), no Ioff | Better suited for transmission-line routing; lacks partial-power-down capability | Select when minimizing undershoot on long traces is prioritized over hot-swap safety |
| CY74FCT16543ATPACT | TSSOP-56 package (240-mil), 6.5 ns max propagation, same drive strength | Smaller footprint and higher pin density; slightly slower timing | Choose for space-constrained designs where 1.5 ns timing margin is acceptable |
Compared with CY74FCT162543CTPVC and CY74FCT16543ATPACT, the CY74FCT16543CTPVC uniquely combines high-drive capability, Ioff support, and SSOP packaging - making it optimal for industrial backplanes requiring both robustness and safe power sequencing.
Availability
CY74FCT16543CTPVC is available at Aetrix Electronics and suitable for industrial backplane interfaces, legacy bus extensions, high-density data acquisition hubs, and modular controller interconnects requiring stable component supply and long-term lifecycle support.
Supply support for CY74FCT16543CTPVC 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 personal electronics markets.
The CY74FCT16543CTPVC belongs to TI's FCT logic family, designed specifically for high-speed, low-noise, industrial-grade bus interfacing - emphasizing drive strength, timing precision, and robustness in electrically noisy environments.
FAQ
What is the maximum operating frequency supported by CY74FCT16543CTPVC?
The CY74FCT16543CTPVC does not specify a maximum clock frequency but achieves 5.1 ns propagation delay in transparent mode. This supports reliable operation in systems with setup/hold timing budgets compatible with ~150–200 MHz effective data rates when used with appropriate control logic. Actual system frequency depends on board layout, load capacitance, and controller timing margins - the CY74FCT16543CTPVC itself is rated for industrial temperature and 5V supply stability.
Does CY74FCT16543CTPVC support hot-swap or partial-power-down operation?
Yes, CY74FCT16543CTPVC includes Ioff circuitry that disables outputs when VCC = 0V, preventing damaging current backflow during hot-insertion or partial system shutdown. This feature is explicitly validated in the datasheet and makes CY74FCT16543CTPVC suitable for modular backplane architectures where cards may be inserted or removed while the main bus remains powered.
What is the difference between CY74FCT16543CTPVC and CY74FCT162543CTPVC?
CY74FCT16543CTPVC provides 64 mA sink / 32 mA source drive and includes Ioff, while CY74FCT162543CTPVC offers balanced 24 mA drivers with lower ground bounce (VOLP < 0.6 V) but no Ioff. The former targets high-capacitance backplanes; the latter suits transmission-line routing. Both use identical 56-pin SSOP packaging and share the same 5.1 ns speed grade.
Is CY74FCT16543CTPVC RoHS compliant and lead-free?
Yes, CY74FCT16543CTPVC is RoHS compliant and features Green (RoHS & no Sb/Br) material content with CU NIPDAU lead finish. It meets JEDEC MSL Level-1 moisture sensitivity rating and is qualified for standard 260°C peak reflow profiles - confirmed in TI's official packaging addendum and material declarations.
Can CY74FCT16543CTPVC replace older 74FCT16543 devices in existing designs?
Yes, CY74FCT16543CTPVC is a direct functional and pin-compatible replacement for legacy 74FCT16543 variants in SSOP-56 packages. It maintains identical logic behavior, timing specifications, and DC characteristics. No PCB changes are required - only verification of VCC tolerance (5V ±10%) and thermal environment (−40°C to +85°C) is recommended before migration.
CY74FCT16543CTPVC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 56-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-SSOP
CY74FCT16543CTPVC FAQ
1.How can I place an order for CY74FCT16543CTPVC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16543CTPVC 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 CY74FCT16543CTPVC reliable?
The price and inventory of CY74FCT16543CTPVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16543CTPVC is usually 5 days.
3.What payment methods are accepted for CY74FCT16543CTPVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16543CTPVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT16543CTPVC?
CY74FCT16543CTPVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16543CTPVC 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 CY74FCT16543CTPVC?
For technical support, including CY74FCT16543CTPVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16543CTPVC requirements.
6.How does Aetrix verify that CY74FCT16543CTPVC is sourced from the original manufacturer or authorized distributors?
All CY74FCT16543CTPVC 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 CY74FCT16543CTPVC meets industry standards.
7.What is the process for return or replacement of CY74FCT16543CTPVC?
All CY74FCT16543CTPVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16543CTPVC, 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 CY74FCT16543CTPVC part is unused and in its original packaging.
Return procedure for CY74FCT16543CTPVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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