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Diodes Incorporated PI74FCT16244CTAE
- Part No.:
- PI74FCT16244CTAE
- Manufacturer:
- Diodes Incorporated
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
PI74FCT16244CTAE.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,027
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Product details
Overview
PI74FCT16244CTAE from Pericom Semiconductor is a 16-bit non-inverting buffer/line driver with three-state outputs, designed for high-capacitance backplane and bus interface applications. It delivers ±32mA/64mA output drive (IOH/IOL), supports live insertion via power-off disable, and operates at 5V ±10% with hysteresis on all inputs. Used in industrial backplane systems requiring low ground bounce (<1.0V) and flow-through pinout.
For engineers reviewing the PI74FCT16244CTAE datasheet, PI74FCT16244CTAE pinout, PI74FCT16244CTAE application, or PI74FCT16244CTAE equivalent, key selection criteria include output drive strength, propagation delay (≤4.1 ns), power-off disable behavior, and TSSOP-48 package compatibility with high-density PCB layouts.
Technical Context
This device implements a quad-nibble configurable 16-bit buffer architecture with independent 4-bit output-enable controls (1OE–4OE), enabling flexible bus segmentation. Its flow-through pinout minimizes trace crossovers, while hysteresis on all inputs ensures noise immunity in electrically noisy backplane environments.
The output stage integrates power-off disable logic that forces outputs into high-impedance when VCC = 0V, supporting hot-plug capability without bus contention. Ground bounce is suppressed to <1.0V under full-load switching due to optimized output driver design and internal current-limiting characteristics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5.0V ±10% - compatible with standard TTL/CMOS logic rails and industrial 5V systems |
| IOH/IOL Drive | –32mA / 64mA - drives heavy capacitive loads (e.g., >100pF backplanes) without external buffers |
| tPLH/tPHL | ≤4.1 ns @ CL=50pF - enables >200 MHz data rates in point-to-point or stubbed bus topologies |
| VOLP (Ground Bounce) | <1.0V @ TA=25°C - reduces signal integrity risk in multi-driver shared-bus systems |
| Input Hysteresis | 100 mV - rejects noise transients up to 100mV on control and data lines |
| Power-Off Disable | IOFF ≤ ±100 μA @ VCC = 0V - prevents backfeeding and enables safe live board insertion |
| Operating Temp | –40°C to +85°C - qualified for industrial temperature range operation |
Pinout & Package
Package: 48-pin plastic TSSOP (240-mil width, Pb-free & Green compliant, package code A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low 4-bit group output enable | Enables/disables four 4-bit output sections independently for nibble-level bus control |
| 1A0–4A3 | Non-inverting input terminals (16 total) | Accept TTL/CMOS-compatible logic signals; hysteresis improves noise margin |
| 1Y0–4Y3 | Three-state buffered output terminals (16 total) | Deliver high-current, low-ground-bounce outputs; enter Hi-Z when OE asserted |
| VCC (Pins 7, 22, 31, 40) | Power supply input | Four distributed VCC pins reduce IR drop and improve power delivery stability |
| GND (Pins 1, 10, 19, 28, 37, 46) | Ground reference | Six GND pins provide low-inductance return paths for high-speed switching currents |
Key Features
| Feature | Design Value |
|---|---|
| Live-insertion support | Power-off disable ensures outputs remain Hi-Z during VCC ramp-up/down, preventing bus conflicts during hot-swap |
| Flow-through pinout | Input-to-output signal routing across opposite sides of package simplifies PCB layout and reduces layer count |
| Quad-nibble configuration | Four independent 4-bit output-enable controls allow selective activation of bus segments for power gating or isolation |
| Low ground bounce | Typical VOLP <1.0V enables reliable signaling on shared ground planes with multiple drivers |
| Hysteresis on all inputs | 100mV hysteresis threshold suppresses false triggering from EMI or slow-rising edges in industrial environments |
Applications
| Industrial Backplane Interface | High-Density Rack-Mount System |
|---|---|
Use Scenario: Driving 16-bit parallel address/data buses across 12-inch backplane traces with 80pF load per line. IC Role / Device Role / Timing Role: Non-inverting buffer providing level-shifting, noise filtering, and current boosting between controller and peripheral slots. Use Value: Flow-through pinout eliminates vias; ±32mA/64mA drive sustains signal integrity at 25MHz without termination resistors. | Use Scenario: Interfacing FPGA I/O banks to modular I/O cards in telecom chassis with hot-swap capability. IC Role / Device Role / Timing Role: Three-state bus driver enabling dynamic slot isolation and live card replacement without system reset. Use Value: Power-off disable prevents backfeeding during insertion; tPLH ≤4.1ns meets timing closure for 200MHz clock domains. |
| Automated Test Equipment (ATE) | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Driving 16-channel DUT interface boards with mixed-voltage peripherals and long ribbon cables. IC Role / Device Role / Timing Role: Signal conditioner and fanout buffer ensuring clean edge transitions and noise-immune sampling. Use Value: Input hysteresis rejects coupling noise from adjacent test channels; low VOLP avoids false reads during simultaneous switching. | Use Scenario: Buffering digital outputs from microcontroller to relay drivers and opto-isolators in factory-floor control cabinets. IC Role / Device Role / Timing Role: Level-translating, current-boosting interface between 3.3V MCU and 5V industrial actuators. Use Value: 5V-tolerant inputs accept MCU GPIO directly; 64mA sink capability drives LED status indicators and small solenoids. |
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 |
|---|---|---|---|
| 74FCT16244CTPV | Same logic function and speed grade (C), but in 48-pin SSOP (V) package - 300-mil width, higher profile | Less suitable for ultra-thin or high-density PCBs where TSSOP-48 footprint is required | Select when board layout accommodates wider SSOP or thermal dissipation favors larger package |
| SN74ALVC16244DGGR | Lower voltage (1.65–3.6V), lower drive (±24mA), no power-off disable - not 5V-compatible | Restricted to 3.3V-only systems; cannot replace in legacy 5V backplane designs | Choose only for new low-voltage designs where power efficiency outweighs 5V interoperability |
Compared with 74FCT16244CTPV and SN74ALVC16244DGGR, PI74FCT16244CTAE uniquely combines 5V operation, live-insertion capability, and TSSOP-48 compactness - making it optimal for space-constrained industrial backplanes requiring robust hot-swap support.
Availability
PI74FCT16244CTAE is available at Aetrix Electronics and suitable for industrial backplane interfaces, automated test equipment (ATE), and programmable logic controller (PLC) I/O modules requiring stable component supply across extended product lifecycles.
Supply support for PI74FCT16244CTAE 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 FCT-family of 5V CMOS bus interface devices, engineered specifically for low-noise, high-drive backplane and board-to-board interconnect applications.
FAQ
What is the maximum capacitive load this device can reliably drive?
PI74FCT16244CTAE is characterized to drive up to 100 pF per output while maintaining specified propagation delay (≤4.1 ns) and ground bounce (<1.0V). At 64mA sink current, it sustains clean edges on typical FR-4 backplane traces up to 12 inches long with 3–5 pF/inch capacitance, eliminating need for external termination in most cases.
Does this part support hot-swap in powered-backplane systems?
Yes - its power-off disable feature forces outputs into high-impedance when VCC drops below ~0.5V, preventing backfeeding and bus contention during live insertion. This is validated by IOFF ≤ ±100 μA at VCC = 0V, enabling safe use in rack-mounted systems with active backplane power.
How does the quad-nibble enable structure improve system design?
The four independent OE inputs (1OE–4OE) allow selective activation of 4-bit output groups, enabling dynamic bus segmentation. This supports power gating of unused peripherals, isolation of faulted subsystems, and reduced simultaneous switching noise - critical in multi-slot industrial chassis with shared ground planes.
Is the TSSOP-48 package RoHS-compliant and lead-free?
Yes - the "E" suffix in PI74FCT16244CTAE denotes Diodes Incorporated's Pb-free & Green (RoHS-compliant) packaging. The device uses matte-tin lead finish, meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3), and is qualified for reflow soldering per IPC/JEDEC J-STD-020D.2.
PI74FCT16244CTAE 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
PI74FCT16244CTAE FAQ
1.How can I place an order for PI74FCT16244CTAE through Aetrix?
Please submit a Request for Quotation (RFQ) for PI74FCT16244CTAE 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 PI74FCT16244CTAE reliable?
The price and inventory of PI74FCT16244CTAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74FCT16244CTAE is usually 5 days.
3.What payment methods are accepted for PI74FCT16244CTAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74FCT16244CTAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI74FCT16244CTAE?
PI74FCT16244CTAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI74FCT16244CTAE 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 PI74FCT16244CTAE?
For technical support, including PI74FCT16244CTAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74FCT16244CTAE requirements.
6.How does Aetrix verify that PI74FCT16244CTAE is sourced from the original manufacturer or authorized distributors?
All PI74FCT16244CTAE 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 PI74FCT16244CTAE meets industry standards.
7.What is the process for return or replacement of PI74FCT16244CTAE?
All PI74FCT16244CTAE units undergo pre-shipment inspection (PSI). If there is an issue with PI74FCT16244CTAE, 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 PI74FCT16244CTAE part is unused and in its original packaging.
Return procedure for PI74FCT16244CTAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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