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Texas Instruments 74FCT162245CTPACT
- Part No.:
- 74FCT162245CTPACT
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74FCT162245CTPACT.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,256
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Product details
Overview
74FCT162245CTPACT from Texas Instruments is a 16-bit non-inverting bus transceiver with balanced 24-mA output drivers, Ioff partial-power-down support, and 4.1-ns max propagation delay (A↔B) at 5V. It operates across –40°C to +85°C, features <0.6V typical ground bounce, and is designed for bidirectional transmission-line interfacing in industrial backplane and memory subsystem applications.
For engineers reviewing the 74FCT162245CTPACT datasheet, 74FCT162245CTPACT pinout, 74FCT162245CTPACT application, or 74FCT162245CTPACT equivalent, key selection criteria include output drive symmetry, Ioff-enabled system power sequencing, edge-rate-controlled noise performance, and TSSOP-48 packaging compatibility with high-density PCB layouts.
Technical Context
This device implements dual 8-bit bidirectional data paths controlled by independent DIR and OE inputs, enabling flexible bus isolation and direction switching. Its balanced 24-mA sink/source drivers reduce ground bounce and eliminate need for external termination resistors on controlled-impedance lines.
The integrated Ioff circuitry disables outputs when VCC = 0V, preventing current backflow during partial power-down sequences. Input hysteresis (100 mV) and bus hold functionality are absent-this variant lacks bus-hold inputs, distinguishing it from CY74FCT162H245T.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 5V ±10% - Ensures stable operation under industrial rail tolerances without external regulation. |
| Propagation Delay (A↔B) | 1.5–4.1 ns - Enables >200 MHz bidirectional data transfer in synchronous bus architectures. |
| Output Drive | ±24 mA balanced - Provides matched rise/fall edges and minimal undershoot on 50-Ω transmission lines. |
| Ground Bounce (VOLP) | <0.6 V at VCC = 5V, TA = 25°C - Reduces simultaneous switching noise in multi-bit parallel interfaces. |
| Ioff Support | Active at VCC = 0V - Allows safe hot-insertion and partial power-down without damaging current flow. |
| Operating Temperature | –40°C to +85°C - Qualified for continuous use in industrial control and telecom infrastructure environments. |
| Input Hysteresis | 100 mV - Improves noise immunity on slow-rising or noisy control signals (DIR/OE). |
| ESD Rating | >2000 V HBM - Protects against handling damage during assembly and field maintenance. |
Pinout & Package
74FCT162245CTPACT uses a 48-pin TSSOP (DGG) package with 0.5-mm pitch, 12.5-mm × 6.1-mm footprint, and 1.2-mm max height-optimized for automated SMT placement and thermal relief in dense layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control inputs (active HIGH) | Set data flow direction per 8-bit bank: DIR = L → B→A; DIR = H → A→B. |
| 1OE, 2OE | Output enable inputs (active LOW) | Enable/disable respective 8-bit transceiver banks; HIGH forces high-impedance outputs. |
| 1A1–1A8, 2A1–2A8 | Port A I/O terminals | Bidirectional data pins for first/second 8-bit bus; function as inputs or 3-state outputs based on DIR/OE. |
| 1B1–1B8, 2B1–2B8 | Port B I/O terminals | Bidirectional data pins for complementary 8-bit bus; electrically identical to Port A pins. |
| VCC (Pins 24, 25, 47, 48) | Power supply | Four dedicated VCC pins minimize IR drop and improve PSRR across high-speed switching. |
| GND (Pins 1, 2, 22, 23, 26, 27, 45, 46) | Ground reference | Eight GND pins provide low-inductance return paths, critical for controlling ground bounce & EMI. |
Key Features
| Feature | Design Value |
|---|---|
| Edge-rate controlled outputs | Reduces simultaneous switching noise (SSN) by limiting di/dt without external RC networks. |
| 24-mA balanced drivers | Enables direct drive of 50-Ω PCB traces without series termination, simplifying layout and BOM. |
| Ioff partial-power-down | Prevents back-current flow when VCC is off, supporting mixed-voltage system power sequencing. |
| Low ground bounce (<0.6 V) | Maintains signal integrity in multi-bit parallel buses where shared ground paths induce voltage spikes. |
| Industrial temperature range | Validated operation from –40°C to +85°C ensures reliability in uncontrolled ambient environments. |
Applications
| Memory Subsystem Interface | Industrial Backplane Bus |
|---|---|
|
Use Scenario: Bidirectional data transfer between microcontroller local bus and SRAM/Flash memory array. IC Role / Device Role / Timing Role: Level-shifting, bus buffering, and direction control for 16-bit parallel memory access cycles. Use Value: 4.1-ns propagation delay enables sub-250-MHz memory read/write timing margins; Ioff prevents data corruption during CPU sleep states. |
Use Scenario: Interfacing multiple slot controllers to a shared 16-bit system backplane in PLC or motion controller chassis. IC Role / Device Role / Timing Role: Isolating and steering bidirectional data between slot-specific and backplane buses with precise timing control. Use Value: Balanced 24-mA drivers maintain signal fidelity over 15-cm backplane traces; eight GND pins suppress ground shift across multi-slot operation. |
| Telecom Line Card Interface | Test Equipment Data Path |
|
Use Scenario: Connecting FPGA-based packet processing engine to legacy 16-bit PHY interface on line card. IC Role / Device Role / Timing Role: Synchronizing and conditioning bidirectional data streams between clock domains while managing bus contention. Use Value: Edge-rate control minimizes crosstalk in high-density line card layouts; 100-mV input hysteresis rejects noise on long control traces. |
Use Scenario: Programmable stimulus/response path in automated test equipment (ATE) for digital IC validation. IC Role / Device Role / Timing Role: Reconfigurable data path element enabling loopback, inversion, or isolation modes under software control. Use Value: Dual independent OE/DIR controls allow per-bank enable/disable for flexible test pattern routing; TSSOP-48 supports high-channel-count PCB density. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT16245CTPACT | Higher 64-mA sink / 32-mA source drive; no output balancing; higher ground bounce (1.0 V typical). | Better suited for driving heavy capacitive loads (e.g., >100 pF) but increases SSN in transmission-line systems. | Select when load capacitance exceeds 50 pF and termination is externally managed. |
| 74FCT162245ATPACT | 4.5-ns max propagation delay; otherwise identical electrical specs and pinout. | Slightly relaxed timing margin; identical noise and power characteristics. | Acceptable where 400-MHz bus timing allows 0.4-ns additional delay; lower cost if available. |
Compared with 74FCT162245CTPACT, CY74FCT16245CTPACT trades lower skew and reduced ground bounce for higher drive strength and greater switching noise, while 74FCT162245ATPACT offers identical functionality at marginally relaxed speed-making both viable alternatives depending on whether timing budget or noise floor dominates the design priority.
Availability
74FCT162245CTPACT is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory subsystems, and telecom line card designs requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for 74FCT162245CTPACT 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 specializing in analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.
The 74FCT162245CTPACT belongs to TI's FCT logic family-designed specifically for high-speed, low-noise, industrial-grade bus interfacing with robust power sequencing and signal integrity features.
FAQ
What is the maximum operating frequency supported by the 74FCT162245CTPACT?
The 74FCT162245CTPACT has a maximum propagation delay of 4.1 ns (A↔B), supporting reliable bidirectional data transfer up to approximately 240 MHz in well-terminated systems. Actual usable frequency depends on board layout, load capacitance, and signal integrity margins-but the device is routinely deployed in 100–200 MHz parallel bus applications with clean eye diagrams.
Does the 74FCT162245CTPACT include bus-hold circuitry on its inputs?
No, the 74FCT162245CTPACT does not feature bus-hold functionality. That capability is exclusive to the CY74FCT162H245T variant. Inputs on the 74FCT162245CTPACT require explicit pull-up or pull-down biasing when floating; unused inputs must be tied to VCC or GND per datasheet guidance to prevent undefined states and increased ICC.
Can the 74FCT162245CTPACT operate at 3.3V?
No, the 74FCT162245CTPACT is specified only for VCC = 5V ±10% (4.5V to 5.5V). It is not 3.3V-tolerant and will not meet AC/DC specifications outside this range. For 3.3V systems, consider TI's ALVC or LVC families-or level-shifting solutions paired with the 74FCT162245CTPACT.
What is the purpose of the multiple VCC and GND pins on the 74FCT162245CTPACT?
The 74FCT162245CTPACT allocates four VCC and eight GND pins to minimize power distribution impedance and suppress ground bounce. This configuration reduces voltage droop during simultaneous output switching and provides low-inductance return paths-critical for maintaining signal integrity in 16-bit parallel interfaces where even 100-mV ground shift can corrupt data.
Is the 74FCT162245CTPACT pin-compatible with other members of the CY74FCT162xxT family?
Yes, all CY74FCT162xxT variants-including CY74FCT16245T, CY74FCT162245T, and CY74FCT162H245T-share identical pinouts and package footprints (TSSOP-48 and SSOP-48). Functional differences (e.g., drive strength, bus hold) do not affect physical compatibility, enabling drop-in substitution where electrical requirements align.
74FCT162245CTPACT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm 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:
- 48-TSSOP
74FCT162245CTPACT FAQ
1.How can I place an order for 74FCT162245CTPACT through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT162245CTPACT 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 74FCT162245CTPACT reliable?
The price and inventory of 74FCT162245CTPACT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT162245CTPACT is usually 5 days.
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74FCT162245CTPACT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT162245CTPACT 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 74FCT162245CTPACT?
For technical support, including 74FCT162245CTPACT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT162245CTPACT requirements.
6.How does Aetrix verify that 74FCT162245CTPACT is sourced from the original manufacturer or authorized distributors?
All 74FCT162245CTPACT 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 74FCT162245CTPACT meets industry standards.
7.What is the process for return or replacement of 74FCT162245CTPACT?
All 74FCT162245CTPACT units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT162245CTPACT, 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 74FCT162245CTPACT part is unused and in its original packaging.
Return procedure for 74FCT162245CTPACT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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