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Texas Instruments 74FCT162244CTPACT
- Part No.:
- 74FCT162244CTPACT
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74FCT162244CTPACT.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,473
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Product details
Overview
74FCT162244CTPACT from Texas Instruments is a 16-bit non-inverting three-state buffer/line driver with balanced 24-mA output drivers, designed for high-speed transmission-line driving in industrial bus interfaces. It operates at 5V ±10%, supports –40°C to +85°C ambient, features Ioff partial-power-down protection, and delivers typical output skew <250 ps.
For engineers reviewing the 74FCT162244CTPACT datasheet, 74FCT162244CTPACT pinout, 74FCT162244CTPACT application, or 74FCT162244CTPACT equivalent, key selection criteria include its 24-mA balanced drive strength, ground-bounce reduction (<0.6V VOLP), flow-through pinout for PCB layout simplification, and TSSOP-48 package compatibility with high-density routing.
Technical Context
This device implements four independent 4-bit groups of non-inverting buffers, each controlled by dedicated active-low OE inputs (1OE–4OE), enabling flexible 4-bit, 8-bit, or full 16-bit bus operation. Its edge-rate control circuitry limits slew rate to suppress system switching noise without external termination.
The Ioff circuitry ensures outputs enter high-impedance state when VCC = 0 V, preventing backflow current during partial power-down. Bus hold functionality is absent-this variant (74FCT162244CTPACT) lacks bus-hold inputs, distinguishing it from CY74FCT162H244T.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - compatible with standard TTL/CMOS logic rails and eliminates need for voltage translation. |
| Output Drive | ±24 mA - balanced sink/source capability enables direct driving of 50-Ω transmission lines without series resistors. |
| Propagation Delay | 1.5 ns (min) to 4.1 ns (max) - supports >200 MHz data rates in point-to-point or lightly loaded stubbed buses. |
| Ground Bounce (VOLP) | <0.6 V at VCC = 5 V, TA = 25°C - reduces signal integrity risk in multi-driver systems sharing common ground planes. |
| Input Hysteresis | 100 mV - improves noise immunity on slow-rising or noisy control signals such as OE lines. |
| ESD Rating | >2000 V HBM - meets industrial handling requirements without additional input protection circuitry. |
| Operating Temp | –40°C to +85°C - qualified for extended industrial environments including factory automation and telecom infrastructure. |
Pinout & Package
TSSOP-48 (DGG package), 240-mil body width, 0.5-mm pitch, 1.2-mm max height, JEDEC MO-153 compliant. Pin 1 marked via corner chamfer; pins arranged in dual-row flow-through configuration to minimize trace crossovers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low three-state enable inputs | Independent control per 4-bit group allows selective bus isolation without gating data paths. |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data inputs (16 total) | Non-inverting inputs mapped directly to corresponding Y outputs; no internal inversion or latching. |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | Three-state buffered outputs (16 total) | High-drive outputs disable to high-Z when respective OE is HIGH; supports bidirectional bus sharing. |
| VCC (Pins 24, 48) | Power supply | Dual VCC pins reduce IR drop and improve noise rejection across wide bus widths. |
| GND (Pins 25, 47) | Ground reference | Dual GND pins provide low-inductance return path for all 16 drivers, critical for ground-bounce suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Balanced ±24-mA output drivers | Enables matched rise/fall times on transmission lines, minimizing jitter and reflections without external termination. |
| Ioff partial-power-down support | Prevents damaging back-current when VCC is off but bus signals remain active-essential for hot-swap and power-gated subsystems. |
| Edge-rate control circuitry | Integrates controlled slew limiting to reduce EMI and crosstalk in dense PCB layouts with parallel data buses. |
| Flow-through pinout | Input and output pins aligned on opposite sides of package, eliminating layer jumps and vias in 2-layer board designs. |
| Low ground bounce (<0.6 V) | Reduces simultaneous switching noise (SSN), preserving signal integrity on shared ground planes in multi-device systems. |
Applications
| Memory Address Buffering | Clock Distribution Network |
|---|---|
Use Scenario: Driving address lines from a microcontroller to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Non-inverting buffer isolating controller outputs from capacitive bus load while maintaining timing margins. Use Value: 4.1 ns max propagation delay ensures setup/hold compliance at 100-MHz bus clocks; ±24-mA drive sustains signal integrity across 10-cm traces. | Use Scenario: Distributing a single clock source to multiple synchronous peripherals (e.g., ADCs, DACs, FPGAs). IC Role / Device Role / Timing Role: Fanout buffer replicating clock edges with minimal skew between outputs. Use Value: Typical output skew <250 ps maintains phase alignment across 16 destinations, critical for time-sensitive sampling systems. |
| Backplane Interface Driver | Industrial I/O Expansion Module |
Use Scenario: Interfacing a local processor bus to a 50-Ω impedance-controlled backplane carrying parallel control/status data. IC Role / Device Role / Timing Role: Transmission-line driver matching characteristic impedance to suppress reflections. Use Value: Balanced ±24-mA output eliminates need for external series resistors, reducing BOM count and layout area while maintaining signal fidelity. | Use Scenario: Isolating field-side digital I/O signals (e.g., sensor inputs, relay controls) from a central PLC CPU module. IC Role / Device Role / Timing Role: Level-shifting and noise-immune bus interface between isolated domains. Use Value: –40°C to +85°C rating and >2000-V HBM ESD withstand ensure reliability in electrically noisy factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT16244CTPACT | Higher drive: 64 mA sink / 32 mA source; no current-limiting resistors; higher ground bounce (VOLP <1.0 V). | Better suited for heavy capacitive loads (e.g., >100 pF) or low-impedance backplanes; less optimal for controlled-impedance transmission lines. | Select when driving legacy TTL loads or long daisy-chained buses where edge rate is less critical than raw current. |
| 74FCT162H244CTPACT | Includes bus-hold on all inputs; identical ±24-mA drive and timing specs. | Eliminates external pull-up/down resistors on floating inputs; adds ~100 µA input leakage per pin. | Choose when input signals may be disconnected or undriven during system reset or sleep modes. |
Compared with 74FCT162244CTPACT, CY74FCT16244CTPACT offers greater sink current but sacrifices transmission-line fidelity due to higher ground bounce, while 74FCT162H244CTPACT adds bus-hold functionality at no timing or drive penalty-making it ideal for systems with intermittent input sources.
Availability
74FCT162244CTPACT is available at Aetrix Electronics and suitable for memory buffering, clock distribution, backplane interfacing, and industrial I/O expansion requiring stable component supply across extended temperature ranges.
Supply support for 74FCT162244CTPACT 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 74FCT family was engineered for high-speed, low-noise, 5-V CMOS-compatible bus interface applications-emphasizing signal integrity, power-down safety, and industrial reliability over legacy TTL compatibility.
FAQ
What is the maximum operating frequency supported by the 74FCT162244CTPACT?
The 74FCT162244CTPACT has a maximum propagation delay of 4.1 ns, supporting reliable operation up to approximately 200 MHz in point-to-point configurations. Actual usable frequency depends on load capacitance, trace length, and termination; for 50-Ω transmission lines, it maintains signal integrity beyond 150 MHz with proper layout.
Does the 74FCT162244CTPACT include bus-hold circuitry on its inputs?
No, the 74FCT162244CTPACT does not include bus-hold functionality. That feature is exclusive to the CY74FCT162H244T variant. Inputs on the 74FCT162244CTPACT must be actively driven or externally terminated to VCC/GND to avoid floating states.
Can the 74FCT162244CTPACT be used with 3.3-V logic systems?
The 74FCT162244CTPACT is specified only for 5-V ±10% operation and is not 3.3-V tolerant. Its VIH minimum is 2.0 V, but applying 3.3-V signals to inputs risks violating absolute maximum ratings if VCC is unpowered or unstable. Use level translators or 3.3-V-compatible FCT variants for mixed-voltage systems.
What is the purpose of the dual VCC and GND pins on the 74FCT162244CTPACT?
The dual VCC (pins 24, 48) and dual GND (pins 25, 47) pins reduce power delivery inductance and improve high-frequency noise rejection. They provide separate current paths for the two halves of the 16-bit array, lowering ground bounce and ensuring consistent output performance across all channels under simultaneous switching conditions.
Is the 74FCT162244CTPACT RoHS compliant?
Yes, the 74FCT162244CTPACT is RoHS compliant per TI's packaging documentation. It uses lead-free finish and meets JEDEC J-STD-020 moisture sensitivity level (MSL) requirements for surface-mount assembly, though specific MSL rating requires verification against the latest TI package addendum.
74FCT162244CTPACT 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:
- Buffer, Non-Inverting
- Number of Elements:
- 4
- Number of Bits per Element:
- 4
- 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
74FCT162244CTPACT FAQ
1.How can I place an order for 74FCT162244CTPACT through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT162244CTPACT 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 74FCT162244CTPACT reliable?
The price and inventory of 74FCT162244CTPACT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT162244CTPACT is usually 5 days.
3.What payment methods are accepted for 74FCT162244CTPACT?
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4.How is shipping managed for 74FCT162244CTPACT?
74FCT162244CTPACT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT162244CTPACT 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 74FCT162244CTPACT?
For technical support, including 74FCT162244CTPACT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT162244CTPACT requirements.
6.How does Aetrix verify that 74FCT162244CTPACT is sourced from the original manufacturer or authorized distributors?
All 74FCT162244CTPACT 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 74FCT162244CTPACT meets industry standards.
7.What is the process for return or replacement of 74FCT162244CTPACT?
All 74FCT162244CTPACT units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT162244CTPACT, 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 74FCT162244CTPACT part is unused and in its original packaging.
Return procedure for 74FCT162244CTPACT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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