My Inquiry
My Account
Texas Instruments CY74FCT163543CPVCT
- Part No.:
- CY74FCT163543CPVCT
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
CY74FCT163543CPVCT.pdf
- Description:
- BUS TRANSCEIVER, FCT SERIES
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY74FCT163543CPVCT from Texas Instruments is a 16-bit latched transceiver organized as two independent 8-bit D-type latched transceivers, supporting bidirectional data flow between A and B buses with separate latch enable (LEAB/LEBA) and output enable (OEAB/OEBA) controls. It features 24 mA balanced drive outputs, 5 V-tolerant I/O, FCT-C speed (5.1 ns propagation delay), and operates from 2.7 V to 3.6 V across –40°C to +85°C industrial temperature range.
For engineers reviewing the CY74FCT163543CPVCT datasheet, CY74FCT163543CPVCT pinout, CY74FCT163543CPVCT application, or CY74FCT163543CPVCT equivalent, key selection considerations include its live-insertion capability via power-off disable, edge-rate control for noise reduction, latch transparency vs. storage mode timing, and SSOP-56 package compatibility in mixed-voltage bus translation systems.
Technical Context
The CY74FCT163543CPVCT implements dual 8-bit D-latch architecture with independent CE/LE/OE controls per direction, enabling precise staging of data capture and output gating. Its latch-enable logic supports transparent mode (LE low) and storage mode (LE rising edge), while OE controls three-state output buffers - all with TTL-compatible thresholds and 5 V tolerance on both sides.
It uses current-limiting resistors integrated into 24 mA balanced drivers to minimize ground bounce (typical VOLP < 0.5 V) and reduce need for external termination. The device meets JEDEC JESD-17 latch-up immunity (>500 mA) and MIL-STD-883D ESD > 2000 V, with typical output skew < 250 ps and propagation delay guaranteed ≤5.1 ns at VCC = 3.0–3.6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - Enables operation in 3.3 V systems with margin for supply variation |
| Propagation Delay (tPLH/tPHL) | ≤5.1 ns - Supports high-speed bus interfacing up to ~100 MHz system clock domains |
| Output Drive Strength | ±24 mA - Sustains robust signal integrity across PCB traces without external pull-ups/downs |
| I/O Voltage Tolerance | 5 V tolerant - Allows direct connection to legacy 5 V buses in mixed-voltage designs |
| Power-Off Disable | IOFF ≤ 100 µA at VCC = 0 V - Permits hot-plug insertion without bus contention or back-drive damage |
| Operating Temperature | –40°C to +85°C - Qualified for industrial-grade embedded control and communications equipment |
| Output Skew | <250 ps - Ensures tight timing alignment across all 16 bits for synchronous data capture |
Pinout & Package
Package: 56-pin SSOP (O56), 300-mil body width, JEDEC MO-118 compliant, 0.025-inch pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A1–1A8, 2A1–2A8 | A-side data inputs / B-to-A outputs | 8-bit parallel port A; bidirectional - driven by B when CEBA low and OEBA low |
| 1B1–1B8, 2B1–2B8 | B-side data inputs / A-to-B outputs | 8-bit parallel port B; bidirectional - driven by A when CEAB low and OEAB low |
| 1CEAB, 2CEAB | A-to-B enable (active LOW) | Enables data path from A to B; must be LOW to allow A data to reach B outputs |
| 1CEBA, 2CEBA | B-to-A enable (active LOW) | Enables data path from B to A; must be LOW to allow B data to reach A outputs |
| 1LEAB, 2LEAB | A-to-B latch enable (active LOW) | When LOW: A inputs pass through; rising edge stores A data into latches |
| 1LEBA, 2LEBA | B-to-A latch enable (active LOW) | When LOW: B inputs pass through; rising edge stores B data into latches |
| 1OEAB, 2OEAB | A-to-B output enable (active LOW) | Controls three-state driver for B outputs; LOW enables, HIGH disables |
| 1OEBA, 2OEBA | B-to-A output enable (active LOW) | Controls three-state driver for A outputs; LOW enables, HIGH disables |
| VCC | Power supply | 2.7–3.6 V digital supply; decoupling required near pins 28 and 42 |
| GND | Ground reference | Multiple GND pins (e.g., pins 14, 27, 41, 55) reduce ground impedance and noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Edge-rate controlled outputs | Reduces simultaneous switching noise (SSN) and EMI without external RC networks |
| 5 V tolerant I/O | Interoperates directly with 5 V logic families (e.g., TTL, LS) while powered from 3.3 V |
| Live-insertion support | Power-off disable limits IOFF to ≤100 µA, preventing back-driving during hot-swap |
| FCT-C speed grade | 5.1 ns max propagation delay ensures timing closure in high-throughput data pipelines |
| Latch architecture with independent controls | Enables asynchronous handshaking between A/B buses using separate CE/LE/OE signals |
Applications
| Industrial Backplane Interface | Memory Expansion Bridge |
|---|---|
|
Use Scenario: Bidirectional data transfer between 3.3 V processor bus and legacy 5 V peripheral backplane. IC Role / Device Role / Timing Role: Latched transceiver providing voltage-level translation and bus isolation with cycle-staged data capture. Use Value: Eliminates need for discrete level shifters and external latches; 5 V tolerance avoids interface logic; latch enable sequencing prevents metastability during bus arbitration. |
Use Scenario: Extending address/data bus from microcontroller to external SRAM or Flash memory operating at different voltage or timing domain. IC Role / Device Role / Timing Role: Dual 8-bit latch synchronizes burst transfers and holds stable data during memory access cycles. Use Value: 24 mA drive sustains signal integrity over longer traces; low skew (<250 ps) ensures setup/hold compliance for parallel memory interfaces. |
| Hot-Swappable I/O Module | Programmable Logic Interposer |
|
Use Scenario: Modular I/O card inserted into powered chassis where bus lines must remain undriven until fully seated. IC Role / Device Role / Timing Role: Isolation buffer with power-off disable ensuring zero current injection during insertion/removal. Use Value: IOFF ≤100 µA prevents bus corruption; edge-rate control minimizes transient glitches that could trigger false interrupts in host controller. |
Use Scenario: Interfacing FPGA I/O banks (3.3 V) to ASIC or ASSP with 5 V-tolerant but non-5 V-powered interfaces. IC Role / Device Role / Timing Role: Direction-controlled bus translator with latch staging to align FPGA register writes with downstream timing. Use Value: Independent LE/OE allows FPGA to pre-load data then strobe it synchronously; 5 V tolerance accommodates mixed-supply ASICs without level-shifter ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar latched transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74FCT163543CPVCT | Same pinout, identical electrical specs, TI-branded replacement after Cypress acquisition | No functional difference; used interchangeably in new designs post-acquisition | Select SN74FCT163543CPVCT for new designs requiring active TI support and updated documentation |
| 74ALVC163543PW | Lower drive (24 mA typ, not guaranteed min), 1.65–3.6 V VCC, no 5 V tolerance | Not suitable for 5 V bus interfacing; requires external level shifting if interfacing to 5 V logic | Choose only for pure 3.3 V or lower systems where 5 V tolerance is unnecessary and cost is prioritized |
Compared with CY74FCT163543CPVCT, SN74FCT163543CPVCT offers identical performance and drop-in compatibility with ongoing TI lifecycle support, whereas 74ALVC163543PW sacrifices 5 V tolerance and guaranteed drive strength for lower voltage operation - limiting use to single-supply 3.3 V environments.
Availability
CY74FCT163543CPVCT is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory expansion bridges, hot-swappable I/O modules, and programmable logic interposers requiring stable component supply and long-term obsolescence management.
Supply support for CY74FCT163543CPVCT 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 company specializing in analog, embedded processing, and logic solutions, with leadership in industrial, automotive, and communications markets.
The CY74FCT163543CPVCT belongs to TI's FCT logic family, designed for high-speed, low-noise, mixed-voltage bus interfacing in industrial and telecom infrastructure where reliability, latch control, and live-insertion capability are critical.
FAQ
What is the maximum operating frequency supported by CY74FCT163543CPVCT?
The CY74FCT163543CPVCT does not specify a maximum clock frequency directly, but its 5.1 ns propagation delay (tPLH/tPHL) and 2.0 ns setup/hold times support reliable operation in systems with bus toggle rates up to approximately 100 MHz. Actual usable frequency depends on board layout, load capacitance, and timing margins in the target application - design validation using worst-case delay values from the datasheet is recommended for CY74FCT163543CPVCT.
Does CY74FCT163543CPVCT support true 5 V operation on VCC?
No, CY74FCT163543CPVCT requires VCC between 2.7 V and 3.6 V. However, its inputs and outputs are 5 V tolerant - meaning they can safely accept and drive 5 V logic signals while powered from 3.3 V. This makes CY74FCT163543CPVCT ideal for translating between 3.3 V logic domains and legacy 5 V buses without level-shifting circuitry.
Can CY74FCT163543CPVCT be used for unidirectional data transfer?
Yes, CY74FCT163543CPVCT supports unidirectional operation by holding one direction's CE and OE inputs inactive (e.g., CEBA and OEBA HIGH), while actively controlling the other direction (e.g., CEAB and OEAB LOW with LEAB toggled). Its dual independent control sets allow flexible configuration - CY74FCT163543CPVCT functions equally well as two separate 8-bit unidirectional latched buffers.
What is the purpose of the edge-rate control circuitry in CY74FCT163543CPVCT?
The edge-rate control circuitry in CY74FCT163543CPVCT intentionally slows output transitions just enough to suppress ringing and overshoot without compromising propagation delay - reducing simultaneous switching noise (SSN), ground bounce (typical VOLP < 0.5 V), and EMI. This eliminates need for external series resistors or RC snubbers in most PCB layouts, simplifying design while maintaining signal integrity - a key benefit of CY74FCT163543CPVCT in dense, high-speed systems.
Is CY74FCT163543CPVCT pin-compatible with CY74FCT163543APVCT?
Yes, CY74FCT163543CPVCT and CY74FCT163543APVCT share identical SSOP-56 pinout and function set, differing only in speed grade: CY74FCT163543CPVCT guarantees ≤5.1 ns propagation delay, while CY74FCT163543APVCT is rated ≤6.5 ns. Both operate over the same VCC and temperature range, making CY74FCT163543CPVCT a direct performance upgrade within the same footprint - no PCB changes required.
CY74FCT163543CPVCT 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:
- -
CY74FCT163543CPVCT FAQ
1.How can I place an order for CY74FCT163543CPVCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT163543CPVCT 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 CY74FCT163543CPVCT reliable?
The price and inventory of CY74FCT163543CPVCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT163543CPVCT is usually 5 days.
3.What payment methods are accepted for CY74FCT163543CPVCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT163543CPVCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT163543CPVCT?
CY74FCT163543CPVCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT163543CPVCT 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 CY74FCT163543CPVCT?
For technical support, including CY74FCT163543CPVCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT163543CPVCT requirements.
6.How does Aetrix verify that CY74FCT163543CPVCT is sourced from the original manufacturer or authorized distributors?
All CY74FCT163543CPVCT 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 CY74FCT163543CPVCT meets industry standards.
7.What is the process for return or replacement of CY74FCT163543CPVCT?
All CY74FCT163543CPVCT units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT163543CPVCT, 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 CY74FCT163543CPVCT part is unused and in its original packaging.
Return procedure for CY74FCT163543CPVCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY74FCT163543CPVCT Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
