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Texas Instruments 74FCT162244ATPACT
- Part No.:
- 74FCT162244ATPACT
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74FCT162244ATPACT.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,175
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Product details
Overview
74FCT162244ATPACT from Texas Instruments is a 16-bit non-inverting three-state buffer/line driver with balanced 24-mA output drivers, designed for high-speed bus interface applications including memory and clock distribution. It operates at 5V ±10%, supports –40°C to +85°C industrial temperature range, features Ioff partial-power-down protection, and delivers typical output skew <250 ps.
For engineers reviewing the 74FCT162244ATPACT datasheet, 74FCT162244ATPACT pinout, 74FCT162244ATPACT application, or 74FCT162244ATPACT equivalent, key selection criteria include its 24-mA balanced drive strength, ground bounce <0.6V, 4.8-ns max propagation delay, TSSOP-48 package, and compatibility with transmission-line driving in backplane and memory subsystem designs.
Technical Context
This device implements four independent 4-bit groups of non-inverting buffers, each with dedicated active-low three-state enable (OE) inputs enabling flexible 4-bit, 8-bit, or full 16-bit bus control. Its edge-rate control circuitry suppresses switching noise without external termination resistors.
The 74FCT162244ATPACT integrates current-limiting resistors in both sourcing and sinking paths, delivering symmetrical 24-mA drive capability per output while minimizing undershoot and ground bounce. It is fully specified for partial-power-down operation via Ioff, preventing backflow current when VCC = 0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - compatible with standard TTL/CMOS logic rails and eliminates need for level-shifting in 5-V systems. |
| Output Drive | ±24 mA - balanced sourcing/sinking enables clean signal integrity on transmission lines and reduces external termination requirements. |
| Propagation Delay | Max 4.8 ns - ensures timing-critical bus buffering in high-speed memory and clock distribution paths. |
| Ground Bounce (VOLP) | <0.6 V at VCC = 5 V, TA = 25°C - minimizes noise coupling into shared ground planes during simultaneous switching. |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including factory automation and embedded control systems. |
| Ioff Support | Enabled - prevents damaging current backflow when powered down, critical for hot-swap and power-gated subsystems. |
| Input Hysteresis | 100 mV - improves noise immunity on slow-rising or noisy input signals without requiring external Schmitt triggers. |
Pinout & Package
TSSOP-48 (DGG package), 48-pin thin shrink small-outline package with 0.5-mm pitch, 12.6 mm × 6.2 mm body, 1.2 mm max height, and flow-through pinout optimized for PCB layout simplification and signal routing efficiency.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low three-state enable inputs | Independently control 4-bit output groups; all outputs enter high-impedance state when asserted (LOW), enabling time-multiplexed bus sharing. |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data inputs | 16 total CMOS/TTL-compatible inputs; no bus hold - require external pull-up/down if left unconnected. |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | Non-inverting three-state outputs | 16 buffered outputs with 24-mA drive; high-impedance when corresponding OE is HIGH, eliminating bus contention. |
| VCC (Pins 24, 48) | Power supply | Dual VCC pins reduce supply inductance and improve decoupling effectiveness across the wide 48-pin array. |
| GND (Pins 1, 25) | Ground reference | Dual GND pins placed opposite VCC to minimize ground loop inductance and support low-noise operation. |
Key Features
| Feature | Design Value |
|---|---|
| Balanced 24-mA output drivers | Enables matched rise/fall times and reduced ground bounce (<0.6 V), supporting reliable transmission-line driving without external termination. |
| Edge-rate control circuitry | Integrates controlled slew rate to significantly lower system-level EMI and crosstalk in dense PCB layouts. |
| Ioff partial-power-down support | Disables outputs and blocks reverse current flow when VCC = 0 V, allowing safe insertion/removal in live-backplane systems. |
| Flow-through pinout | Input and output pins arranged on opposite sides of package to simplify layer routing and minimize trace stubs in high-speed buses. |
| Industrial temperature range | –40°C to +85°C operation ensures stable performance in harsh environments such as motor drives and industrial PLCs. |
Applications
| Memory Address Buffering | Backplane Data Distribution |
|---|---|
|
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 providing fanout, noise immunity, and timing margin between controller and memory chips. Use Value: 4.8-ns max propagation delay and 24-mA drive ensure setup/hold timing compliance across 16-bit address paths with capacitive loads up to 50 pF. |
Use Scenario: Distributing parallel data across a multi-slot industrial backplane with long trace runs. IC Role / Device Role / Timing Role: Transmission-line driver maintaining signal integrity over 10+ cm FR-4 traces with minimal reflection. Use Value: Balanced ±24-mA outputs and edge-rate control reduce ground bounce and overshoot, enabling reliable 25-MHz parallel data transfer. |
| Programmable Logic Interface | Legacy Bus Isolation |
|
Use Scenario: Interfacing FPGA I/O banks to legacy 5-V TTL peripherals with mismatched voltage thresholds. IC Role / Device Role / Timing Role: Level-tolerant buffer translating between 3.3-V FPGA outputs and 5-V bus receivers. Use Value: 2.0-V VIH and 0.8-V VIL thresholds ensure robust recognition of 3.3-V logic levels while driving 5-V loads. |
Use Scenario: Isolating CPU data bus from peripheral expansion slots to prevent fault propagation. IC Role / Device Role / Timing Role: Three-state isolator enabling dynamic bus partitioning via OE-controlled enable/disable. Use Value: Independent 4-bit OE controls allow selective activation of peripheral groups without software overhead or additional logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer/line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162244T | Same 24-mA drive and pinout, but slower 6.5-ns max propagation delay; SSOP/TSSOP packaging identical. | Lower-speed bus interfaces where timing margin exceeds 4.8 ns; suitable for cost-sensitive industrial controllers. | Select CY74FCT162244T only if 6.5-ns delay meets system timing budget and TSSOP-48 footprint is acceptable. |
| 74FCT162244CTPACT | Identical architecture and drive strength, but 4.1-ns max propagation delay; same TSSOP-48 package and 5-V operation. | Higher-performance memory subsystems requiring tighter timing closure, e.g., fast SRAM cache interfaces. | Choose 74FCT162244CTPACT when sub-4.8-ns delay is required and board layout supports identical footprint. |
Compared with 74FCT162244ATPACT, CY74FCT162244T trades speed for broader availability in legacy designs, while 74FCT162244CTPACT provides faster timing at identical drive strength-both retain the same Ioff, ground bounce, and thermal specs, making them drop-in alternatives only when speed requirements align.
Availability
74FCT162244ATPACT is available at Aetrix Electronics and suitable for memory subsystems, industrial backplanes, FPGA-to-peripheral interfaces, and programmable logic carrier boards requiring stable component supply across extended product lifecycles.
Supply support for 74FCT162244ATPACT 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 decades of expertise in high-reliability industrial and automotive-grade components.
The 74FCT162244ATPACT belongs to TI's FCT logic family, engineered for low-noise, high-speed 5-V bus interfacing in mission-critical industrial and computing infrastructure applications.
FAQ
What is the maximum propagation delay specification for the 74FCT162244ATPACT?
The 74FCT162244ATPACT has a maximum propagation delay (tPLH/tPHL) of 4.8 ns over the full industrial temperature range (–40°C to +85°C) and VCC = 4.5 V to 5.5 V. This value is measured from input transition to valid output transition under standard load conditions and defines the worst-case timing path for synchronous bus design.
Does the 74FCT162244ATPACT support partial-power-down operation?
Yes, the 74FCT162244ATPACT includes Ioff circuitry that disables all outputs and blocks reverse current flow when VCC = 0 V. This feature allows safe integration into hot-swap-capable systems and power-gated subsystems without risk of damage from backflow through powered-down sections of the 74FCT162244ATPACT.
What is the output drive capability of the 74FCT162244ATPACT?
The 74FCT162244ATPACT provides balanced ±24 mA output drive per pin - 24 mA sink and 24 mA source - with integrated current-limiting resistors. This enables clean signal edges on transmission lines and reduces or eliminates the need for external series termination resistors in point-to-point or short-bus configurations.
Is the 74FCT162244ATPACT pin-compatible with other members of the FCT162xx44 family?
Yes, the 74FCT162244ATPACT shares identical pinout and package (TSSOP-48) with CY74FCT162244T, 74FCT162244CTPACT, and CY74FCT162H244ATPACT. However, bus hold functionality is exclusive to the 'H' variant, and propagation delay differs across speed grades - electrical and mechanical compatibility does not imply functional interchangeability without verifying timing and feature requirements.
What package type and dimensions does the 74FCT162244ATPACT use?
74FCT162244ATPACT uses the TSSOP-48 (DGG) package: 12.6 mm × 6.2 mm body size, 0.5-mm lead pitch, 1.2-mm maximum height, and JEDEC MO-153 compliant. Its flow-through pinout places inputs on one side and outputs on the opposite side, simplifying PCB routing and reducing crosstalk in high-density layouts.
74FCT162244ATPACT 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
74FCT162244ATPACT FAQ
1.How can I place an order for 74FCT162244ATPACT through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT162244ATPACT 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 74FCT162244ATPACT reliable?
The price and inventory of 74FCT162244ATPACT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT162244ATPACT is usually 5 days.
3.What payment methods are accepted for 74FCT162244ATPACT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74FCT162244ATPACT transactions.
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4.How is shipping managed for 74FCT162244ATPACT?
74FCT162244ATPACT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT162244ATPACT 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 74FCT162244ATPACT?
For technical support, including 74FCT162244ATPACT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT162244ATPACT requirements.
6.How does Aetrix verify that 74FCT162244ATPACT is sourced from the original manufacturer or authorized distributors?
All 74FCT162244ATPACT 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 74FCT162244ATPACT meets industry standards.
7.What is the process for return or replacement of 74FCT162244ATPACT?
All 74FCT162244ATPACT units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT162244ATPACT, 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 74FCT162244ATPACT part is unused and in its original packaging.
Return procedure for 74FCT162244ATPACT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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