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Texas Instruments 74FCT162245ATPACT
- Part No.:
- 74FCT162245ATPACT
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74FCT162245ATPACT.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,522
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Product details
Overview
74FCT162245ATPACT from Texas Instruments is a 16-bit bidirectional transceiver IC with balanced 24-mA output drivers, 4.5-ns max propagation delay (A-grade), and Ioff partial-power-down support. It operates at 5V ±10% across –40°C to +85°C and is optimized for driving transmission lines in high-speed digital buses.
For engineers reviewing the 74FCT162245ATPACT datasheet, 74FCT162245ATPACT pinout, 74FCT162245ATPACT application, or 74FCT162245ATPACT equivalent, key selection criteria include output drive symmetry, ground bounce performance (<0.6 V), bus isolation during power-down, and TSSOP-48 package compatibility with dense PCB layouts.
Technical Context
This device implements dual 8-bit or unified 16-bit bidirectional data transfer controlled by DIR (direction) and active-low OE (output enable). Its balanced 24-mA sink/source drivers reduce system switching noise and minimize undershoot without external termination resistors.
The Ioff circuitry ensures outputs are disabled when VCC = 0 V, preventing backflow current during partial power-down. Edge-rate control limits di/dt, yielding typical output skew <250 ps and ESD robustness >2000 V per MIL-STD-883.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay (max) | 4.5 ns - Enables reliable operation in 220-MHz bus systems with margin |
| Output Drive Strength | ±24 mA - Balanced sink/source capability eliminates need for external biasing |
| Ground Bounce (VOLP) | <0.6 V at VCC = 5 V - Reduces noise coupling into adjacent signal paths |
| Ioff Support | Yes - Prevents damaging current flow when powered down, critical for hot-swap designs |
| Supply Voltage Range | 5 V ±10% - Matches legacy TTL/CMOS logic rails without level-shifting |
| Operating Temperature | –40°C to +85°C - Qualified for industrial environments including motor control and PLCs |
| ESD Rating | >2000 V HBM - Provides robust handling during board assembly and field service |
Pinout & Package
74FCT162245ATPACT 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 dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction Control Inputs | Set data flow direction per 8-bit section: LOW = B→A, HIGH = A→B |
| 1OE, 2OE | Active-Low Output Enable | Enable/disable respective 8-bit transceiver sections independently |
| 1A1–1A8, 2A1–2A8 | Port A I/O Terminals | First and second 8-bit bidirectional bus ports (A-side) |
| 1B1–1B8, 2B1–2B8 | Port B I/O Terminals | First and second 8-bit bidirectional bus ports (B-side) |
| VCC (Pins 24, 25, 47, 48) | Power Supply | Four dedicated VCC pins reduce IR drop and improve supply stability |
| GND (Pins 12, 13, 26, 27, 38, 39) | Ground Return | Six GND pins provide low-inductance return paths for high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| Balanced ±24-mA drivers | Eliminates need for external series termination on PCB traces up to 15 cm |
| Edge-rate control | Reduces simultaneous switching noise (SSN) and crosstalk in multi-line buses |
| Ioff partial-power-down | Enables safe insertion/removal in live backplanes without disrupting other powered devices |
| Low ground bounce (<0.6 V) | Maintains signal integrity on shared ground planes with mixed-signal peripherals |
| Industrial temperature range | Supports deployment in uncontrolled enclosures such as factory-floor HMIs and gateways |
Applications
| Industrial Backplane Interface | Memory Expansion Bus |
|---|---|
|
Use Scenario: Bidirectional data routing between CPU module and I/O expansion cards in modular PLC chassis. IC Role / Device Role / Timing Role: Level-shifting transceiver enabling 5-V TTL-compatible communication across 20-cm backplane traces. Use Value: 4.5-ns propagation delay and 24-mA drive ensure setup/hold timing margins at 100-MHz burst rates without added termination. |
Use Scenario: Interfacing microcontroller memory controller to external SRAM or Flash in embedded instrumentation. IC Role / Device Role / Timing Role: Isolating and buffering address/data bus during memory read/write cycles with independent DIR/OE control. Use Value: Dual 8-bit configuration allows separate control of address (A-port) and data (B-port) lines, reducing control logic overhead. |
| High-Speed Test Equipment Bus | Automated Test Fixture Interface |
|
Use Scenario: Signal conditioning and direction control between FPGA-based pattern generator and DUT interface board. IC Role / Device Role / Timing Role: Transmission-line driver ensuring clean edge integrity over 10-cm FR4 traces with minimal reflection. Use Value: Low VOLP (<0.6 V) prevents false triggering of sensitive comparators or ADC reference inputs sharing the same ground plane. |
Use Scenario: Hot-pluggable sensor node interface in production test racks where modules are inserted while system remains powered. IC Role / Device Role / Timing Role: Bus isolator with Ioff protection preventing backfeed from powered DUT into unpowered test controller. Use Value: Ioff compliance guarantees no latch-up or damage during insertion, eliminating need for complex power sequencing hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit bidirectional transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74FCT162245CTPACT | 4.1-ns max propagation delay; otherwise identical electrical specs and pinout | Suitable where tighter timing margins are required (e.g., >250-MHz bus clocking) | Select when absolute minimum delay is critical and layout supports tighter timing closure |
| 74FCT162H245ATPACT | Adds bus-hold circuitry on all data inputs; same speed and drive strength | Eliminates external pull-up/down resistors on floating control buses or unused I/O lines | Choose when input signal integrity is compromised by unterminated stubs or intermittent connections |
Compared with 74FCT162245ATPACT, the C-grade variant offers faster timing but no functional change, while the H-grade adds bus-hold for floating-input resilience-neither is pin-compatible with non-TSSOP variants, and all require matching 5-V supply and industrial temp support.
Availability
74FCT162245ATPACT is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory expansion buses, and automated test fixture designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for 74FCT162245ATPACT 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 with broad industrial and automotive qualification.
The 74FCT162245ATPACT belongs to TI's FCT logic family, engineered for high-speed, low-noise bidirectional bus interfacing in industrial control, test equipment, and communications infrastructure.
FAQ
What is the maximum operating frequency supported by the 74FCT162245ATPACT?
The 74FCT162245ATPACT has a maximum propagation delay of 4.5 ns, supporting reliable operation in synchronous bus systems up to approximately 220 MHz under typical conditions. Actual achievable frequency depends on trace length, loading, and timing margins in the target design - the 74FCT162245ATPACT datasheet specifies timing parameters at VCC = 5 V and TA = 25°C, with full industrial-range validation.
Does the 74FCT162245ATPACT support partial power-down mode?
Yes, the 74FCT162245ATPACT includes Ioff circuitry that disables outputs when VCC = 0 V, preventing damaging current backflow during partial power-down. This feature is fully specified per JEDEC standards and enables safe use in hot-swap backplane applications - the 74FCT162245ATPACT maintains this behavior across its full industrial temperature range.
What package type is used for the 74FCT162245ATPACT?
The 74FCT162245ATPACT uses a 48-pin TSSOP (Thin Shrunk Small Outline Package), also designated DGG, with 0.5-mm lead pitch, 12.5-mm × 6.1-mm body dimensions, and 1.2-mm maximum height. This package is RoHS-compliant and qualified for reflow soldering per JEDEC J-STD-020 moisture sensitivity level (MSL) requirements.
How does the 74FCT162245ATPACT differ from the 74FCT16245ATPACT?
The 74FCT162245ATPACT features balanced ±24-mA output drivers and lower ground bounce (<0.6 V), making it ideal for transmission-line driving, whereas the 74FCT16245ATPACT provides asymmetric 64-mA sink / 32-mA source drive optimized for high-capacitance loads. Both share identical pinout, timing, and package - the 74FCT162245ATPACT prioritizes signal integrity, the 74FCT16245ATPACT prioritizes load-driving capability.
Can the 74FCT162245ATPACT be used in place of the 74FCT162245TPACT?
Yes - the 74FCT162245ATPACT is a speed-grade upgrade of the 74FCT162245TPACT, offering 4.5-ns max propagation delay versus 7.0 ns. All other electrical, thermal, and mechanical specifications are identical, including pinout, drive strength, and package. The 74FCT162245ATPACT is backward-compatible and requires no PCB or firmware changes.
74FCT162245ATPACT 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
74FCT162245ATPACT FAQ
1.How can I place an order for 74FCT162245ATPACT through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT162245ATPACT 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 74FCT162245ATPACT reliable?
The price and inventory of 74FCT162245ATPACT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT162245ATPACT is usually 5 days.
3.What payment methods are accepted for 74FCT162245ATPACT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74FCT162245ATPACT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74FCT162245ATPACT?
74FCT162245ATPACT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT162245ATPACT 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 74FCT162245ATPACT?
For technical support, including 74FCT162245ATPACT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT162245ATPACT requirements.
6.How does Aetrix verify that 74FCT162245ATPACT is sourced from the original manufacturer or authorized distributors?
All 74FCT162245ATPACT 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 74FCT162245ATPACT meets industry standards.
7.What is the process for return or replacement of 74FCT162245ATPACT?
All 74FCT162245ATPACT units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT162245ATPACT, 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 74FCT162245ATPACT part is unused and in its original packaging.
Return procedure for 74FCT162245ATPACT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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