My Inquiry
My Account
Texas Instruments CY74FCT162543TPVC
- Part No.:
- CY74FCT162543TPVC
- Manufacturer:
- Texas Instruments
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT162543TPVC.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 56SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,376
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY74FCT162543TPVC from Texas Instruments is a 16-bit balanced-output latched transceiver in 56-pin SSOP packaging, operating at 5V ±10% with industrial temperature range (−40°C to +85°C), 24 mA balanced output drive, typical ground bounce <0.6 V, and propagation delay ≤6.5 ns - used for bidirectional data buffering on high-speed transmission lines in industrial backplanes.
For engineers reviewing the CY74FCT162543TPVC datasheet, CY74FCT162543TPVC pinout, CY74FCT162543TPVC application, or CY74FCT162543TPVC equivalent, key selection considerations include Ioff-enabled partial-power-down support, edge-rate controlled noise reduction, latch-enable timing margins (tSU/tH = 2.0 ns), and compatibility with 5V TTL/CMOS logic families in space-constrained board designs.
Technical Context
The CY74FCT162543TPVC implements two independent 8-bit D-type latched transceivers with separate A-to-B and B-to-A control paths, each featuring dedicated Latch Enable (LEAB/LEBA), Output Enable (OEAB/OEBA), and Direction Enable (CEAB/CEBA) inputs. Its architecture supports simultaneous bidirectional flow control without bus contention.
It integrates current-limiting resistors in 24 mA balanced output drivers to suppress undershoot and reduce ground bounce, eliminating need for external termination on transmission lines. Ioff circuitry disables outputs during power-down to prevent backflow current, satisfying partial-power-down system requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - compatible with standard industrial 5V rails; no level-shifting required for TTL/CMOS interfacing |
| Output Drive | ±24 mA balanced - enables direct driving of 50-Ω transmission lines without external series resistors |
| Ground Bounce (VOLP) | <0.6 V at VCC = 5 V, TA = 25°C - minimizes switching noise-induced logic errors in dense PCB layouts |
| Propagation Delay | ≤6.5 ns max (transparent mode) - supports >150 MHz data rates in point-to-point or stubbed bus topologies |
| Operating Temperature | −40°C to +85°C - qualified for industrial automation, test equipment, and embedded control applications |
| Ioff Support | Enabled - prevents damaging current backflow when VCC = 0 V, critical for hot-swap and multi-rail power sequencing |
| Input Hysteresis | 100 mV - improves noise immunity on slow or noisy control signals (e.g., LEAB, OEAB) |
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) | Tri-states corresponding B or A outputs independently; enables dynamic bus sharing between multiple devices |
| 1LEAB, 2LEAB, 1LEBA, 2LEBA | A-to-B / B-to-A Latch Enable (Active LOW) | Controls transparent vs. latched mode; LOW-to-HIGH transition captures A or B input data into storage register |
| 1CEAB, 2CEAB, 1CEBA, 2CEBA | A-to-B / B-to-A Direction Enable (Active LOW) | Enables data path directionality; must be LOW to allow input sampling or output assertion on respective side |
| A1–A16, B1–B16 | Bidirectional Data Terminals | Shared I/O pins: act as inputs when opposite side is enabled for output, or as three-state outputs when local OE is asserted |
| VCC, GND (×4) | Power & Ground Distribution | Multiple VCC/GND pairs minimize supply impedance and reduce simultaneous switching noise across 16-bit bus |
Key Features
| Feature | Design Value |
|---|---|
| Edge-rate controlled outputs | Reduces EMI and crosstalk in high-density routing by limiting dv/dt without sacrificing speed |
| 24 mA balanced drivers | Provides matched rise/fall times and low ground bounce for clean signal integrity on unterminated lines |
| Ioff partial-power-down | Allows safe operation in mixed-voltage systems where one rail powers down while others remain active |
| Industrial temperature range | Validated operation from −40°C to +85°C ensures reliability in factory-floor and outdoor electronics |
| Low input capacitance (4.5 pF typ) | Minimizes loading on upstream drivers, preserving timing margins in fan-out-heavy configurations |
Applications
| Industrial Backplane Interface | Test Equipment Data Bus |
|---|---|
|
Use Scenario: Bidirectional data transfer between controller and modular I/O cards in PLC chassis with shared 5V backplane. IC Role / Device Role / Timing Role: Latched transceiver buffers address/data/control signals between card slots and main CPU, isolating timing domains and preventing bus contention. Use Value: 24 mA drive strength sustains signal integrity over 15 cm backplane traces; Ioff prevents backfeed during hot-swap insertion/removal. |
Use Scenario: High-speed digital pattern generation and acquisition in automated test equipment with synchronized stimulus-response channels. IC Role / Device Role / Timing Role: Synchronizes parallel data capture and output using independent latch enables per 8-bit segment, enabling precise setup/hold timing control. Use Value: 2.0 ns setup/hold time and ≤6.5 ns propagation delay support 150+ MHz test vector rates with deterministic latency. |
| Embedded Control Subsystem | Legacy System Interfacing |
|
Use Scenario: Bridging modern microcontroller peripherals (e.g., GPIO banks) to legacy 5V parallel interfaces in medical diagnostic instruments. IC Role / Device Role / Timing Role: Level-translating latched buffer that isolates MCU I/O from noisy industrial loads while maintaining strict timing alignment. Use Value: Edge-rate control and <0.6 V ground bounce ensure reliable communication despite shared ground planes with motor drivers or relays. |
Use Scenario: Interfacing FPGA-based logic analyzers to vintage 5V ISA or VME bus systems requiring robust bidirectional data capture. IC Role / Device Role / Timing Role: Provides glitch-free bus arbitration via independent CE/OE/LE controls, allowing FPGA to read or write without bus conflicts. Use Value: Separate A/B enable logic eliminates need for external bus controllers; SSOP package fits legacy board real estate constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar latched transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT16543TPVC | 64 mA sink / 32 mA source drive; higher ground bounce (VOLP <1.0 V); no current-limiting resistors | Better suited for driving heavy capacitive loads (e.g., >100 pF) but requires external termination for transmission lines | Select when interfacing to high-capacitance backplanes or legacy TTL loads; avoid for unterminated line driving |
| CY74FCT162H543TPVC | Adds bus-hold circuitry on all data inputs; retains last valid state during high-impedance transitions | Eliminates need for external pull-up/down resistors on floating buses; increases input leakage slightly (±1 µA) | Choose when connecting to un-driven or intermittently active buses; not needed if upstream drivers always assert valid levels |
Compared with CY74FCT16543TPVC and CY74FCT162H543TPVC, the CY74FCT162543TPVC uniquely balances transmission-line drive capability, low-noise operation, and minimal external component count - making it optimal for new designs targeting clean signal integrity on compact industrial PCBs.
Availability
CY74FCT162543TPVC is available at Aetrix Electronics and suitable for industrial backplane interface, test equipment data bus, embedded control subsystem, and legacy system interfacing requiring stable component supply and long-term production continuity.
Supply support for CY74FCT162543TPVC 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 and embedded processing solutions, with decades of expertise in logic, timing, and interface ICs for industrial, automotive, and communications markets.
The CY74FCT162543TPVC belongs to TI's FCT logic family, engineered specifically for high-speed, low-noise bidirectional data transfer in industrial-grade 5V systems - emphasizing robustness, timing precision, and power-aware design.
FAQ
What is the maximum clock/data rate supported by CY74FCT162543TPVC?
CY74FCT162543TPVC supports data rates up to ~150 MHz based on its 6.5 ns maximum propagation delay in transparent mode and 2.0 ns setup/hold timing margins. It is not a clocked device but relies on external latch-enable edges; actual throughput depends on system-level timing closure including PCB trace delays and driver characteristics. The part is optimized for burst-mode parallel transfers rather than continuous streaming.
Does CY74FCT162543TPVC require external pull-up or pull-down resistors on its data pins?
No, CY74FCT162543TPVC does not require external pull-up or pull-down resistors on its A or B data terminals. Unlike the CY74FCT162H543TPVC variant, this part lacks bus-hold circuitry - however, its inputs meet standard TTL thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and are designed to be actively driven. Floating inputs must be avoided per datasheet guidance.
Can CY74FCT162543TPVC operate at 3.3V supply voltage?
No, CY74FCT162543TPVC is specified only for VCC = 5 V ±10% (4.5 V to 5.5 V). It is not 3.3V-tolerant and will not function reliably below 4.5 V. For 3.3V systems, consider TI's ALVC or LVC logic families - the CY74FCT162543TPVC must be used in 5V domains or with level-shifting circuitry.
What is the purpose of the CEAB and CEBA pins on CY74FCT162543TPVC?
The CEAB (A-to-B Enable) and CEBA (B-to-A Enable) pins on CY74FCT162543TPVC are active-low direction controls that gate data flow before latching or output stages. When CEAB is LOW, A-side inputs may be sampled into the A latches or B-side outputs reflect latched A data. They provide fine-grained bus arbitration, preventing unintended data injection during state transitions - distinct from OEAB/OEBA which only tri-state outputs.
Is CY74FCT162543TPVC RoHS compliant and lead-free?
Yes, CY74FCT162543TPVC is RoHS compliant and lead-free. Per TI's packaging documentation, it carries "Green (RoHS & no Sb/Br)" eco-plan designation, with CU NIPDAU lead finish and JEDEC MSL Level-1 rating (260°C peak reflow). The SSOP package (DL drawing) meets IPC/JEDEC standards for lead-free assembly processes.
CY74FCT162543TPVC 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:
- 24mA, 24mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-SSOP
CY74FCT162543TPVC FAQ
1.How can I place an order for CY74FCT162543TPVC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT162543TPVC 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 CY74FCT162543TPVC reliable?
The price and inventory of CY74FCT162543TPVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT162543TPVC is usually 5 days.
3.What payment methods are accepted for CY74FCT162543TPVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT162543TPVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT162543TPVC?
CY74FCT162543TPVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT162543TPVC 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 CY74FCT162543TPVC?
For technical support, including CY74FCT162543TPVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT162543TPVC requirements.
6.How does Aetrix verify that CY74FCT162543TPVC is sourced from the original manufacturer or authorized distributors?
All CY74FCT162543TPVC 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 CY74FCT162543TPVC meets industry standards.
7.What is the process for return or replacement of CY74FCT162543TPVC?
All CY74FCT162543TPVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT162543TPVC, 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 CY74FCT162543TPVC part is unused and in its original packaging.
Return procedure for CY74FCT162543TPVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY74FCT162543TPVC 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…
