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Diodes Incorporated PI74FCT16244ATAE
- Part No.:
- PI74FCT16244ATAE
- Manufacturer:
- Diodes Incorporated
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
PI74FCT16244ATAE.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,004
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Product details
Overview
PI74FCT16244ATAE from Pericom Semiconductor is a non-inverting 16-bit buffer/line driver with three-state outputs, designed for high-capacitance load and low-impedance backplane driving. It features ±32mA/64mA output drive (IOH/IOL), power-off disable for live insertion, <1.0V typical output ground bounce (VOLP), and operates across –40°C to +85°C at 5.0V ±10%. Used in industrial backplane interfaces and modular system interconnects.
For engineers reviewing the PI74FCT16244ATAE datasheet, PI74FCT16244ATAE pinout, PI74FCT16244ATAE application, or PI74FCT16244ATAE equivalent, key selection criteria include output drive strength, live-insertion capability, ground-bounce performance, and TSSOP-48 packaging compatibility with high-density PCB layouts.
Technical Context
This device implements a flow-through pin architecture with quad-nibble, dual-byte, or full 16-bit bus control via independent 3-state enable inputs (1OE–4OE). Each of its four 4-bit sections operates with separate input (xAx) and output (xYx) terminals, enabling flexible data path segmentation without internal bus contention.
All inputs include hysteresis (100mV), improving noise immunity in noisy industrial environments. The power-off disable feature ensures outputs enter high-impedance state when VCC = 0V, supporting hot-swap compliance in modular chassis systems without external isolation circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply Voltage | 5.0V ±10% - Supports standard TTL/CMOS logic rails; not compatible with 3.3V-only systems. |
| IOH / IOL Drive | –32mA / 64mA - Enables direct driving of 50Ω transmission lines or multiple TTL loads without external buffers. |
| tPLH / tPHL Delay | 1.5–6.5ns (CL = 50pF) - Meets sub-7ns timing budgets for high-speed parallel bus applications up to ~150MHz effective rate. |
| VOLP (Ground Bounce) | <1.0V typ. at 25°C - Reduces signal integrity risk during simultaneous switching on shared ground planes. |
| Input Hysteresis | 100mV - Increases noise margin against EMI-induced glitches on control or data lines in electrically harsh environments. |
| Power-Off Disable | IOFF ≤ ±100μA at VCC = 0V - Allows safe board insertion/removal while backplane remains powered, eliminating hot-swap transients. |
| Operating Temperature | –40°C to +85°C - Qualified for extended industrial temperature operation without derating. |
Pinout & Package
Package: 48-pin plastic TSSOP (240-mil width), Pb-free & Green compliant (suffix "E"). Body dimensions: 12.50mm × 6.10mm × 1.20mm (L × W × H), 0.5mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low 3-state enable per 4-bit section | Enables independent gating of four nibbles; supports partial bus activation and power-aware data routing. |
| 1A0–4A3 | Non-inverting input terminals (16 total) | Direct connection to upstream logic; no polarity inversion; hysteresis improves edge robustness. |
| 1Y0–4Y3 | 3-state buffered output terminals (16 total) | High-drive, low-ground-bounce outputs; sink/source capable; enter Hi-Z when corresponding xOE = HIGH. |
| VCC (Pins 7, 22, 37, 46) | Primary power supply | Four distributed VCC pins reduce IR drop and improve decoupling effectiveness across wide package. |
| GND (Pins 4, 19, 34, 43) | Ground reference | Four dedicated GND pins minimize ground loop inductance and stabilize output switching behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through pinout | Input and output pins aligned on opposite sides - simplifies layer routing and reduces trace stubs in dense backplane designs. |
| Live-insertion support | Outputs disable automatically at VCC = 0V - eliminates need for external hot-swap controllers in modular rack systems. |
| Balanced AC characteristics | tPZH/tPHZ ≤ 8.0ns / 7.0ns - ensures tight enable/disable timing control for synchronous bus arbitration protocols. |
| Low dynamic ground bounce | VOLP <1.0V (typ.) - maintains signal integrity during 16-bit simultaneous switching without added termination or layout constraints. |
| Industrial temperature range | –40°C to +85°C operation - validated for use in factory automation, test equipment, and telecom line cards without thermal derating. |
Applications
| Industrial Backplane Interface | Modular Rack I/O Expansion |
|---|---|
|
Use Scenario: Interfacing CPU modules to peripheral carrier boards in programmable logic controllers (PLCs) with shared 16-bit address/data buses. IC Role / Device Role / Timing Role: Non-inverting buffer with independent nibble enables; provides level translation, drive strength, and timing isolation between modules. Use Value: Flow-through pinout minimizes trace length mismatch; power-off disable prevents backfeeding during hot module replacement. |
Use Scenario: Driving high-capacitance backplane traces (>100pF/load) in modular test instrumentation chassis with interchangeable measurement cards. IC Role / Device Role / Timing Role: High-current line driver with controlled edge rates; manages simultaneous switching noise across 16-bit parallel paths. Use Value: ±32mA/64mA drive sustains signal integrity over 15cm+ backplane runs; <1.0V VOLP avoids false triggering in adjacent analog circuits. |
| Telecom Line Card Bus Isolation | Factory Automation Data Hub |
|
Use Scenario: Isolating control bus signals between FPGA-based processing units and field I/O banks in telecom access equipment. IC Role / Device Role / Timing Role: Three-state buffer enabling time-multiplexed access to shared configuration registers and status ports. Use Value: Independent 1OE–4OE allows selective activation of functional blocks, reducing dynamic power and crosstalk during partial reconfiguration. |
Use Scenario: Aggregating sensor and actuator data from multiple PLC racks into a central motion controller via parallel digital bus. IC Role / Device Role / Timing Role: Robust 16-bit data repeater with hysteresis-enhanced noise immunity for factory floor EMI environments. Use Value: 100mV input hysteresis rejects motor drive noise; industrial temp rating ensures reliability near high-power drives and welders. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit non-inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74FCT16244CPAG | Same pinout, identical DC specs, but higher ICCD (100μA/MHz vs. 60μA/MHz); no power-off disable | Lacks live-insertion capability; requires external hot-swap protection in modular systems | Prefer when cost sensitivity outweighs hot-swap requirement and dynamic current is less constrained |
| 74ALVC16244PW | 3.3V-only supply (1.65–3.6V); lower drive (±24mA); smaller TSSOP-48 package (5.0mm width) | Not interoperable with 5V systems; unsuitable for legacy backplanes or mixed-voltage designs | Select only for new 3.3V-only architectures where space and voltage scaling are primary drivers |
Compared with SN74FCT16244CPAG and 74ALVC16244PW, the PI74FCT16244ATAE uniquely combines 5V operation, live-insertion support, and industry-leading ground-bounce suppression-making it the only choice for retrofitting or upgrading hot-pluggable industrial backplanes.
Availability
PI74FCT16244ATAE is available at Aetrix Electronics and suitable for industrial backplane interfaces, modular rack I/O expansion, and telecom line card bus isolation requiring stable component supply, long-lifecycle support, and consistent Pb-free manufacturing.
Supply support for PI74FCT16244ATAE 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
Pericom Semiconductor (now part of Diodes Incorporated) specialized in high-speed interface, timing, and signal-integrity solutions for communications, computing, and industrial markets.
The PI74FCT16244 series belongs to Pericom's Fast CMOS buffer family, engineered specifically for robust 5V parallel bus interfacing in electrically noisy, thermally demanding, and hot-swap-capable systems.
FAQ
Is PI74FCT16244ATAE compatible with 3.3V logic inputs?
No. PI74FCT16244ATAE requires 5.0V ±10% VCC and has TTL-compatible input thresholds (VIH = 2.0V min, VIL = 0.8V max). While 3.3V logic outputs may meet VIH under nominal conditions, they fall outside guaranteed operating margins across temperature and voltage extremes-external level shifting is required for reliable interfacing.
Does PI74FCT16244ATAE support hot-swap without external circuitry?
Yes. Its power-off disable feature ensures outputs enter high-impedance state when VCC drops to 0V, allowing safe insertion into a live backplane. This eliminates the need for external hot-swap controllers or sequencing ICs-verified by IOFF ≤ ±100μA at VCC = 0V per datasheet Section 4.
What is the maximum capacitive load this device can drive reliably?
The device is characterized for CL = 50pF in timing tests, but its ±32mA/64mA drive strength supports heavier loads. Application notes confirm stable operation up to 100pF with <1.0V VOLP at 25°C. For >100pF or longer traces, verify signal integrity via IBIS simulation using the official Pericom model.
How does the flow-through pinout improve PCB layout?
The input (xAx) and output (xYx) pins are arranged on opposite sides of the TSSOP package (e.g., inputs on left, outputs on right), enabling straight-through trace routing without layer jumps or vias. This reduces impedance discontinuities, minimizes crosstalk, and cuts layout time for high-speed parallel buses-confirmed in Pericom's layout guidelines (PD-1401).
PI74FCT16244ATAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74FCT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- 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:
- 32mA, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
PI74FCT16244ATAE FAQ
1.How can I place an order for PI74FCT16244ATAE through Aetrix?
Please submit a Request for Quotation (RFQ) for PI74FCT16244ATAE 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 PI74FCT16244ATAE reliable?
The price and inventory of PI74FCT16244ATAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74FCT16244ATAE is usually 5 days.
3.What payment methods are accepted for PI74FCT16244ATAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74FCT16244ATAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI74FCT16244ATAE?
PI74FCT16244ATAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI74FCT16244ATAE 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 PI74FCT16244ATAE?
For technical support, including PI74FCT16244ATAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74FCT16244ATAE requirements.
6.How does Aetrix verify that PI74FCT16244ATAE is sourced from the original manufacturer or authorized distributors?
All PI74FCT16244ATAE 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 PI74FCT16244ATAE meets industry standards.
7.What is the process for return or replacement of PI74FCT16244ATAE?
All PI74FCT16244ATAE units undergo pre-shipment inspection (PSI). If there is an issue with PI74FCT16244ATAE, 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 PI74FCT16244ATAE part is unused and in its original packaging.
Return procedure for PI74FCT16244ATAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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