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Texas Instruments 74FCT162652ATPVCT
- Part No.:
- 74FCT162652ATPVCT
- Manufacturer:
- Texas Instruments
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74FCT162652ATPVCT.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 56SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,178
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Product details
Overview
74FCT162652ATPVCT from Texas Instruments is a 16-bit registered transceiver organized as two independent 8-bit bus transceivers with three-state D-type registers, 5.4 ns max propagation delay (bus-to-bus), 24 mA balanced output drive, and Ioff partial-power-down support - used in high-speed backplane and transmission-line interfacing applications.
For engineers reviewing the 74FCT162652ATPVCT datasheet, 74FCT162652ATPVCT pinout, 74FCT162652ATPVCT application, or 74FCT162652ATPVCT equivalent, key selection criteria include real-time/stored data multiplexing capability, ground bounce <0.6 V at 5 V, industrial temperature range (−40°C to +85°C), TSSOP/SSOP package compatibility, and balanced 24 mA drivers for low-noise line driving.
Technical Context
This device implements dual 8-bit registered transceiver logic with separate clock inputs (CLKAB/CLKBA), bidirectional select controls (SAB/SBA), and independent output enables (OEAB/OEBA), enabling flexible data routing between A and B buses either in real-time or from internal D-flip-flop storage. It supports simultaneous or staggered clocking depending on select control state.
The 74FCT162652ATPVCT uses current-limiting resistors integrated into its 24 mA balanced output drivers to reduce ground bounce and eliminate need for external termination, distinguishing it from the higher-drive 64 mA/32 mA CY74FCT16652T variant. Its Ioff circuitry ensures outputs are disabled during power-down to prevent backflow current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ± 10% - compatible with standard TTL/CMOS logic rails and industrial 5 V systems |
| Propagation Delay | Max 5.4 ns (bus-to-bus) - enables sub-200 MHz system timing margins in synchronous bus architectures |
| Output Drive | ±24 mA balanced - reduces ground bounce (<0.6 V) and eliminates need for external series termination resistors |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade embedded control, instrumentation, and telecom infrastructure |
| Ioff Support | Enabled at VCC = 0 V - prevents damaging current backflow during partial power-down in hot-swap or modular systems |
| Input Hysteresis | 100 mV - improves noise immunity on control lines (OEAB, SAB, CLKAB) in electrically noisy environments |
| Output Skew | ≤0.5 ns - ensures tight timing alignment across all 16 outputs for parallel data integrity |
Pinout & Package
74FCT162652ATPVCT is housed in a 56-lead SSOP (O56) package, 300-mil body width, 0.65 mm pitch, 1.2 mm max height, JEDEC MO-153 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OEAB, 2OEAB | Output Enable A→B | Active-low control enabling A-bus data onto B-bus; asserts high-impedance when high |
| 1OEBA, 2OEBA | Output Enable B→A | Active-low control enabling B-bus data onto A-bus; asserts high-impedance when high |
| 1CLKAB, 2CLKAB | A→B Clock Input | LOW-to-HIGH edge latches A-bus data into register for stored-mode transfer to B-bus |
| 1CLKBA, 2CLKBA | B→A Clock Input | LOW-to-HIGH edge latches B-bus data into register for stored-mode transfer to A-bus |
| 1SAB, 2SAB | Select A→B Source | Low = real-time A→B transfer; High = stored A→B transfer from internal register |
| 1SBA, 2SBA | Select B→A Source | Low = real-time B→A transfer; High = stored B→A transfer from internal register |
| 1A1–1A8, 2A1–2A8 | A-Bus Data Inputs/Outputs | Bi-directional I/O pins for A-side bus; direction determined by OEAB/OEBA and SAB/SBA states |
| 1B1–1B8, 2B1–2B8 | B-Bus Data Inputs/Outputs | Bi-directional I/O pins for B-side bus; direction determined by OEBA/OEAB and SBA/SAB states |
Key Features
| Feature | Design Value |
|---|---|
| Balanced 24 mA output drivers | Reduces ground bounce to <0.6 V and eliminates need for external series termination on PCB traces |
| Ioff partial-power-down support | Disables outputs at VCC = 0 V, preventing backflow current in hot-swap or multi-rail power systems |
| Edge-rate controlled outputs | Minimizes EMI and crosstalk in dense PCB layouts without requiring external slew-rate limiting |
| Dual independent 8-bit register banks | Enables asynchronous A↔B data buffering with separate clocks and select controls per bank |
| Real-time or stored data transfer mode | Configurable via SAB/SBA pins - supports both transparent pass-through and registered pipeline operation |
Applications
| Backplane Interfacing | Industrial Control Bus |
|---|---|
Use Scenario: Bidirectional data exchange between CPU module and I/O expansion cards across a 56-pin parallel backplane. IC Role / Device Role / Timing Role: Registered transceiver providing isolated, skew-controlled, 16-bit data path with clocked storage to absorb timing skews across long traces. Use Value: 5.4 ns propagation delay and ≤0.5 ns output skew ensure setup/hold compliance across 100+ mm backplane runs at 100 MHz system clock. |
Use Scenario: Isolating and level-shifting sensor data and PLC command signals between field-side and controller-side buses. IC Role / Device Role / Timing Role: Dual 8-bit registered buffer enabling synchronized capture of analog input status and timed output actuation commands. Use Value: Ioff support allows safe hot-plug insertion/removal of I/O modules while main controller remains powered. |
| Telecom Line Card | Test Equipment Data Path |
Use Scenario: Driving differential or single-ended transmission lines between FPGA-based packet processors and PHY interface ICs. IC Role / Device Role / Timing Role: Transmission-line driver with built-in current-limiting and low ground bounce for clean signal launch onto 50 Ω traces. Use Value: 24 mA balanced drive and <0.6 V ground bounce enable reliable 150 Mbps NRZ signaling without external termination. |
Use Scenario: Routing calibrated digital stimulus and response signals between pattern generator, DUT socket, and acquisition logic in ATE systems. IC Role / Device Role / Timing Role: Registered multiplexer supporting both real-time pass-through and captured snapshot modes for deterministic test vector replay. Use Value: Independent SAB/SBA and CLKAB/CLKBA controls allow precise alignment of stimulus timing relative to DUT clock edges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar registered transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT16652ATPVCT | 64 mA sink / 32 mA source drive; higher ground bounce (~1.0 V); no current-limiting resistors | Better suited for driving heavy capacitive loads (e.g., >100 pF stubs), less optimal for transmission-line impedance matching | Select when load capacitance exceeds 75 pF and termination is handled externally |
| 74FCT162652CTPVCT | Same 24 mA drive and architecture, but 5.4 ns speed grade (vs. 6.3 ns for AT suffix); identical pinout and package | Offers tighter timing margin for high-frequency synchronous bus designs requiring <5.5 ns propagation | Choose for new designs targeting maximum clock rate; backward-compatible drop-in replacement |
Compared with CY74FCT16652ATPVCT, the 74FCT162652ATPVCT delivers lower ground bounce and built-in termination - critical for signal integrity on controlled-impedance lines - while 74FCT162652CTPVCT provides identical functionality at a faster speed grade, enabling higher system throughput without layout changes.
Availability
74FCT162652ATPVCT is available at Aetrix Electronics and suitable for industrial control bus interfacing, telecom line card design, backplane signal conditioning, and automated test equipment requiring stable component supply and long-term lifecycle continuity.
Supply support for 74FCT162652ATPVCT 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 logic solutions for industrial, automotive, and communications markets.
The 74FCT162652ATPVCT belongs to TI's FCT logic family - designed specifically for high-speed, low-noise, industrial-grade bus interfacing with robust power-down and transmission-line driving capabilities.
FAQ
What is the maximum operating frequency supported by the 74FCT162652ATPVCT?
The 74FCT162652ATPVCT does not specify a maximum operating frequency directly, but its 5.4 ns maximum propagation delay (bus-to-bus) and 5.0 ns minimum clock pulse width support reliable operation up to approximately 185 MHz in synchronous bus applications - assuming proper PCB layout, termination, and timing margin allocation per system-level analysis.
Does the 74FCT162652ATPVCT support hot-swap or partial-power-down operation?
Yes, the 74FCT162652ATPVCT includes Ioff circuitry that disables all outputs when VCC = 0 V, preventing damaging current backflow through the device during hot-swap events or partial-power-down sequences - a key requirement for modular industrial and telecom systems where subsystems may be powered independently.
What is the difference between the 'AT' and 'CT' speed grades in the 74FCT162652 series?
The 'AT' suffix (as in 74FCT162652ATPVCT) denotes a 6.3 ns maximum propagation delay, while the 'CT' suffix (74FCT162652CTPVCT) specifies a tighter 5.4 ns maximum. Both share identical pinout, package, drive strength (±24 mA), and functional behavior - making the CT version a performance-upgraded, pin-compatible option for timing-critical designs.
Can the 74FCT162652ATPVCT drive unterminated 50 Ω transmission lines?
Yes - the 74FCT162652ATPVCT integrates current-limiting resistors in its 24 mA balanced output drivers, enabling direct drive of 50 Ω lines with minimal undershoot and ground bounce (<0.6 V). This eliminates the need for external series termination resistors in point-to-point or short-drop configurations, simplifying PCB layout and reducing BOM count.
Is the 74FCT162652ATPVCT pin-compatible with the CY74FCT16652T family?
No - although both are 56-pin registered transceivers, the 74FCT162652ATPVCT and CY74FCT16652T differ in output drive architecture (24 mA balanced vs. 64 mA/32 mA asymmetrical), ground bounce characteristics, and internal current-limiting. They share the same pin assignment and package outline, but electrical behavior and timing parameters are not interchangeable without system-level validation.
74FCT162652ATPVCT 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
74FCT162652ATPVCT FAQ
1.How can I place an order for 74FCT162652ATPVCT through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT162652ATPVCT 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 74FCT162652ATPVCT reliable?
The price and inventory of 74FCT162652ATPVCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT162652ATPVCT is usually 5 days.
3.What payment methods are accepted for 74FCT162652ATPVCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74FCT162652ATPVCT transactions.
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4.How is shipping managed for 74FCT162652ATPVCT?
74FCT162652ATPVCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT162652ATPVCT 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 74FCT162652ATPVCT?
For technical support, including 74FCT162652ATPVCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT162652ATPVCT requirements.
6.How does Aetrix verify that 74FCT162652ATPVCT is sourced from the original manufacturer or authorized distributors?
All 74FCT162652ATPVCT 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 74FCT162652ATPVCT meets industry standards.
7.What is the process for return or replacement of 74FCT162652ATPVCT?
All 74FCT162652ATPVCT units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT162652ATPVCT, 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 74FCT162652ATPVCT part is unused and in its original packaging.
Return procedure for 74FCT162652ATPVCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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