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Texas Instruments CY74FCT162543TPVCT
- Part No.:
- CY74FCT162543TPVCT
- Manufacturer:
- Texas Instruments
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT162543TPVCT.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 56SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,871
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Product details
Overview
CY74FCT162543TPVCT from Texas Instruments is a 16-bit balanced-output latched transceiver in 56-pin SSOP package, operating at 5V ±10% over −40°C to +85°C. It features 24 mA balanced output drivers, <0.6 V typical ground bounce (VOLP), and 8.5 ns max propagation delay in transparent mode-designed for noise-sensitive transmission-line interfacing in industrial backplane and bus isolation applications.
For engineers reviewing the CY74FCT162543TPVCT datasheet, CY74FCT162543TPVCT pinout, CY74FCT162543TPVCT application, or CY74FCT162543TPVCT equivalent, key selection criteria include Ioff-enabled partial-power-down support, edge-rate-controlled outputs for EMI reduction, dual 8-bit independent latch control (LEAB/LEBA, OEAB/OEBA), and compatibility with high-capacitance loads without external termination.
Technical Context
The CY74FCT162543TPVCT implements two independent 8-bit D-type latched transceivers with separate A-to-B and B-to-A data paths. Each path includes dedicated Latch Enable (LEAB/LEBA) and Output Enable (OEAB/OEBA) controls, enabling bidirectional flow-through or latched operation without bus contention.
Its 24 mA balanced output drivers integrate current-limiting resistors to minimize undershoot and ground bounce-reducing need for external termination while maintaining signal integrity on controlled-impedance traces. Ioff circuitry ensures outputs are disabled during power-down, preventing backflow current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - compatible with standard TTL/CMOS logic rails; no level-shifting required |
| Output Drive | ±24 mA - balanced sourcing/sinking enables clean drive of 50 Ω transmission lines |
| Ground Bounce (VOLP) | <0.6 V at VCC = 5 V, TA = 25°C - reduces switching noise coupling into shared ground planes |
| Propagation Delay | Max 8.5 ns (transparent mode) - supports >100 MHz data rates in point-to-point links |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded and automation systems |
| Ioff Support | Enabled - prevents damaging current backflow when VCC = 0 V, critical for hot-swap and partial-power-down designs |
| ESD Rating | >2000 V HBM - enhances robustness in handling and board-level assembly |
Pinout & Package
Package: 56-pin SSOP (Shrink Small Outline Package), 300-mil body width, 0.025-inch pitch, JEDEC MO-118 compliant, RoHS-compliant green finish (CU NIPDAU), MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–8, 11–18, 21–28, 31–38, 41–48, 51–56 | A/B Data I/O | Bi-directional data terminals; A-side inputs/B-side outputs (A→B) or B-side inputs/A-side outputs (B→A) depending on CE/OE states |
| 9, 10, 19, 20, 29, 30, 39, 40, 49, 50 | Control Inputs | OEAB, OEBA, LEAB, LEBA, CEAB, CEBA - active-low enables for direction, latching, and output gating; fully independent per 8-bit lane |
| 25, 26 | VCC | Primary 5V supply pins - dual VCC connections reduce supply impedance and improve noise immunity |
| 14, 15, 24, 27, 34, 35, 44, 45 | GND | Eight ground pins distributed across package - lowers ground inductance and minimizes simultaneous switching noise |
Key Features
| Feature | Design Value |
|---|---|
| 24 mA Balanced Output Drivers | Enables direct drive of 50 Ω transmission lines without external series resistors, reducing BOM count and layout complexity |
| Edge-Rate Control Circuitry | Reduces high-frequency spectral content of switching edges, lowering radiated emissions and crosstalk in dense PCB layouts |
| Ioff Partial-Power-Down Support | Disables outputs when VCC = 0 V, allowing safe insertion/removal in live backplanes and multi-rail systems |
| Typical Output Skew < 250 ps | Ensures tight timing alignment across all 16 bits-critical for parallel bus integrity and setup/hold margin preservation |
| 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 | High-Speed Bus Isolation |
|---|---|
|
Use Scenario: Interfacing FPGA I/O banks to legacy parallel bus peripherals (e.g., memory-mapped I/O modules) across long PCB traces in programmable logic controllers. IC Role / Device Role: Bidirectional level-consistent data bridge with independent latch control per byte lane to decouple timing domains. Use Value: 24 mA drivers maintain signal fidelity over 10+ cm FR-4 traces; Ioff prevents backfeeding during module hot-swap maintenance. |
Use Scenario: Isolating microcontroller system buses from noisy motor driver subsystems in servo amplifier designs. IC Role / Device Role: Directionally gated transceiver providing galvanic separation via physical layer buffering-not electrical isolation-but blocking noise propagation. Use Value: Edge-rate control and <0.6 V VOLP suppress ground bounce coupling into MCU power rails, improving ADC accuracy and reset stability. |
| Transmission-Line Driver | Parallel Data Acquisition Interface |
|
Use Scenario: Driving 50 Ω coaxial or microstrip traces connecting high-speed ADCs to FPGA-based digital signal processors in test equipment. IC Role / Device Role: Low-skew, matched-output transceiver ensuring simultaneous sampling validity across all 16 data lines. Use Value: ≤250 ps output skew and 8.5 ns max tPLH preserve setup time margins at 100 MSPS sampling rates; balanced drive eliminates DC bias on differential receivers. |
Use Scenario: Capturing parallel 16-bit sensor outputs (e.g., optical encoders, thermal imaging arrays) into real-time control units with strict timing deadlines. IC Role / Device Role: Latched input buffer synchronizing asynchronous sensor data to system clock domain using LEAB/LEBA strobes. Use Value: Independent 8-bit latch enables staggered capture windows; 24 mA drive sustains signal integrity despite 100+ pF trace + input capacitance loading. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar latched transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT16543TPVCT | 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 maximum drive strength is prioritized over signal integrity on controlled-impedance interconnects |
| CY74FCT162H543TPVCT | Includes bus-hold circuitry on all data inputs; retains last valid state during high-impedance conditions | Eliminates need for external pull-up/down resistors on floating bus segments; adds ~1 µA input leakage | Select when input signal integrity must be maintained during tri-state transitions or intermittent connectivity |
Compared with CY74FCT16543TPVCT and CY74FCT162H543TPVCT, the CY74FCT162543TPVCT uniquely balances low-noise transmission-line drive with minimal external component count-making it optimal where EMI, ground bounce, and layout simplicity are co-constrained design goals.
Availability
CY74FCT162543TPVCT is available at Aetrix Electronics and suitable for industrial backplane interface, high-speed bus isolation, and transmission-line driver applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.
Supply support for CY74FCT162543TPVCT 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 focused on analog, embedded processing, and connectivity technologies, serving industrial, automotive, and communications markets with high-reliability silicon solutions.
The CY74FCT162543TPVCT belongs to TI's FCT logic family-engineered for low-noise, high-speed 5V CMOS-compatible interfacing in noise-critical industrial and infrastructure systems.
FAQ
What is the maximum propagation delay of the CY74FCT162543TPVCT in transparent mode?
The CY74FCT162543TPVCT has a maximum propagation delay of 8.5 ns in transparent mode (A-to-B or B-to-A), measured under industrial temperature range and VCC = 5 V ±10%. This value ensures reliable operation in systems requiring sub-10 ns timing margins, such as 100 MHz parallel bus interfaces. The CY74FCT162543TPVCT datasheet specifies this parameter across the full −40°C to +85°C range.
Does the CY74FCT162543TPVCT support partial-power-down operation?
Yes, the CY74FCT162543TPVCT integrates Ioff circuitry that disables outputs when VCC = 0 V, preventing damaging current backflow during hot-swap or multi-rail power sequencing. This feature is explicitly validated in the datasheet and applies across the full industrial temperature range. The CY74FCT162543TPVCT maintains this behavior without external biasing or control.
What is the typical ground bounce (VOLP) performance of the CY74FCT162543TPVCT?
The CY74FCT162543TPVCT delivers typical ground bounce (VOLP) of less than 0.6 V at VCC = 5 V and TA = 25°C-achieved through balanced 24 mA output drivers with integrated current-limiting resistors. This specification is confirmed in the "CY74FCT162543T Features" section and directly supports low-noise operation in mixed-signal environments. The CY74FCT162543TPVCT outperforms the standard CY74FCT16543T (VOLP <1.0 V) in noise-sensitive applications.
How many independent latch control channels does the CY74FCT162543TPVCT provide?
The CY74FCT162543TPVCT provides two independent 8-bit latch control channels: one for A-to-B data flow (using LEAB and OEAB) and another for B-to-A flow (using LEBA and OEBA). Each channel operates autonomously, enabling simultaneous bidirectional latching without contention. This architecture is documented in the functional description and truth table of the CY74FCT162543TPVCT datasheet.
Is the CY74FCT162543TPVCT pin-compatible with other devices in the CY74FCT16x543 family?
Yes, the CY74FCT162543TPVCT shares identical 56-pin SSOP (DL) package dimensions, pinout, and power/ground assignments with CY74FCT16543TPVCT and CY74FCT162H543TPVCT. All three devices use the same mechanical drawing (DL package), enabling drop-in replacement in existing layouts-though functional differences (drive strength, bus hold, VOLP) require validation in target application logic.
CY74FCT162543TPVCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 56-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
CY74FCT162543TPVCT FAQ
1.How can I place an order for CY74FCT162543TPVCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT162543TPVCT 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 CY74FCT162543TPVCT reliable?
The price and inventory of CY74FCT162543TPVCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT162543TPVCT is usually 5 days.
3.What payment methods are accepted for CY74FCT162543TPVCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT162543TPVCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT162543TPVCT?
CY74FCT162543TPVCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT162543TPVCT 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 CY74FCT162543TPVCT?
For technical support, including CY74FCT162543TPVCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT162543TPVCT requirements.
6.How does Aetrix verify that CY74FCT162543TPVCT is sourced from the original manufacturer or authorized distributors?
All CY74FCT162543TPVCT 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 CY74FCT162543TPVCT meets industry standards.
7.What is the process for return or replacement of CY74FCT162543TPVCT?
All CY74FCT162543TPVCT units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT162543TPVCT, 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 CY74FCT162543TPVCT part is unused and in its original packaging.
Return procedure for CY74FCT162543TPVCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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