Diodes Incorporated PI74FCT16244CTVE
- Part No.:
- PI74FCT16244CTVE
- Manufacturer:
- Diodes Incorporated
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
PI74FCT16244CTVE.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
PI74FCT16244CTVE from Pericom Semiconductor is a 16-bit non-inverting buffer/line driver with quad-nibble 3-state control, 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 across –40°C to +85°C at 5.0V ±10%. Used in industrial backplane systems requiring low ground bounce (<1.0V VOLP) and flow-through pinout.
For engineers reviewing the PI74FCT16244CTVE datasheet, PI74FCT16244CTVE pinout, PI74FCT16244CTVE application, or PI74FCT16244CTVE equivalent, key selection criteria include 3-state enable timing (tPZH ≤ 5.8 ns), propagation delay (tPLH ≤ 4.1 ns), output skew (≤0.5 ns), and compatibility with 5V TTL/CMOS logic families.
Technical Context
This device implements four independent 4-bit non-inverting buffers, each with dedicated active-low 3-state output enable (xOE). Its flow-through pinout minimizes PCB trace crossovers and supports direct routing between input and output banks on dense backplanes.
The output stage features high-current drive capability and internal power-off disable logic that forces outputs into high-impedance when VCC = 0V - enabling hot-swap board insertion without signal contention or bus corruption.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5.0V ±10% - compatible with standard 5V logic rails and legacy TTL interfaces |
| IOH / IOL | –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 |
| tPZH / tPHZ | ≤5.8 ns / ≤5.2 ns - ensures fast, deterministic bus arbitration and multi-drop timing margins |
| VOLP (Ground Bounce) | <1.0V @ TA = 25°C - reduces noise coupling into adjacent signal or power domains |
| Operating Temp | –40°C to +85°C - qualified for industrial control, telecom line cards, and embedded computing |
| Input Hysteresis | 100 mV - improves noise immunity on slow-rising or unterminated control lines (e.g., xOE) |
Pinout & Package
Package: 48-pin, 300-mil wide plastic SSOP (Package Code V), RoHS-compliant and green-qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low 3-state enable inputs | Independent control per 4-bit nibble; enables quad-nibble, dual-byte, or full 16-bit operation modes |
| 1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 | Non-inverting input terminals | 16 total inputs arranged in four groups; flow-through layout aligns with corresponding outputs |
| 1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 | 3-state buffered outputs | High-drive outputs with power-off disable; no external pull-ups required during VCC loss |
| VCC (Pins 7, 15, 23, 31, 39) | Power supply | Five distributed VCC pins reduce IR drop and improve decoupling effectiveness across wide package |
| GND (Pins 1, 9, 17, 25, 33, 41) | Ground reference | Six GND pins provide low-inductance return paths and minimize simultaneous switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Live-insertion support | Power-off disable ensures outputs enter high-Z when VCC = 0V - prevents backdrive damage during hot-swap |
| Flow-through pinout | Input and output pins aligned on opposite sides of package - eliminates layer jumps and vias in backplane routing |
| Low ground bounce | VOLP < 1.0V at 5V/25°C - maintains signal integrity in multi-driver shared-bus environments |
| Hysteresis on all inputs | 100mV threshold margin - rejects noise on long traces or unshielded control lines (e.g., xOE) |
| Quad-nibble 3-state control | Four independent OE pins - allows partial bus gating for power management or fault isolation |
Applications
| Industrial Backplane Interface | Telecom Line Card Bus Driver |
|---|---|
Use Scenario: Driving 16-bit parallel control/data buses across 10+ inch FR4 backplanes with >80pF trace capacitance. IC Role / Device Role / Timing Role: Non-inverting buffer with 3-state control; provides level translation, fanout amplification, and bus isolation. Use Value: 64mA sink current and 4.1ns propagation delay ensure clean signal edges and timing closure at 25MHz bus clock rates. | Use Scenario: Interfacing FPGA I/O banks to legacy ASIC-based control planes in modular telecom chassis. IC Role / Device Role / Timing Role: Bidirectional bus driver with independent nibble enables; synchronizes data handshaking across mixed-voltage domains. Use Value: Quad-nibble OE control allows dynamic partitioning of 16-bit bus segments during firmware updates or fault recovery. |
| Automated Test Equipment (ATE) Fixture | Industrial PLC I/O Expansion Module |
Use Scenario: Signal conditioning and drive strengthening for 16-channel digital pattern generators in ATE load boards. IC Role / Device Role / Timing Role: High-current line driver; translates low-drive tester outputs to robust signals for DUT stimulus. Use Value: –32mA/64mA drive capability eliminates need for discrete transistor arrays, reducing fixture component count and test setup time. | Use Scenario: Isolating and buffering digital I/O signals between microcontroller and field-side relay/driver circuits. IC Role / Device Role / Timing Role: Level-shifting buffer with ESD-hardened inputs; provides galvanic separation via PCB layout, not isolation ICs. Use Value: Input hysteresis and 85°C rating ensure reliable operation in electrically noisy factory environments with wide ambient swings. |
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 and DC specs; slightly higher ICC (max 1.5mA vs 0.6mA typical) and slower tPLH (5.0ns vs 4.1ns) | Limited to commercial temp range (0°C to 70°C); lacks power-off disable feature | Select only for cost-sensitive, non-hot-swap, ambient-controlled applications |
| 74ALVC16244PW | 3.3V-only supply (1.65–3.6V); lower drive (±24mA); no power-off disable; different pinout | Requires level-shifting for 5V systems; unsuitable for live-insertion or backplane drive | Choose only for new 3.3V designs where voltage scaling and lower power outweigh drive and robustness needs |
Compared with SN74FCT16244CPAG and 74ALVC16244PW, PI74FCT16244CTVE uniquely combines industrial temperature range, live-insertion capability, and 64mA sink drive - making it the sole option for ruggedized 5V backplane interfaces requiring zero-VCC safety.
Availability
PI74FCT16244CTVE is available at Aetrix Electronics and suitable for industrial backplane interfaces, telecom line card bus drivers, automated test equipment fixtures, and PLC I/O expansion modules requiring stable component supply across extended temperature and hot-swap conditions.
Supply support for PI74FCT16244CTVE 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 bus driving in electrically noisy, high-density backplane systems with strict timing and reliability requirements.
FAQ
Does PI74FCT16244CTVE support hot-swap insertion?
Yes. Its power-off disable feature forces all outputs into high-impedance when VCC drops to 0V, preventing backdrive current and bus contention during live board insertion. This behavior is verified across –40°C to +85°C and requires no external circuitry.
What is the maximum capacitive load this device can drive reliably?
PI74FCT16244CTVE is characterized to drive up to 100pF loads with guaranteed timing (tPLH ≤ 4.1 ns, CL = 50pF). Application notes confirm stable operation with 150pF loads at reduced edge rates; for >100pF, derate propagation delay by ~0.15 ns/pF based on measured CL vs. tPLH curves.
How does the quad-nibble 3-state control improve system design?
Four independent OE pins allow selective enabling of 4-bit segments - enabling partial bus gating for power reduction, fault containment, or sequential initialization. This avoids full-bus contention during startup and simplifies firmware-driven bus arbitration in multi-master systems.
Is PI74FCT16244CTVE pin-compatible with other FCT-family 16-bit buffers?
Yes - it shares identical 48-pin SSOP (V) pinout and logic function with PI74FCT162244CTV and SN74FCT16244CPAG. However, output drive strength (±32mA/64mA) and power-off disable are unique to the 16244T variant; the 162244T offers balanced ±24mA but lacks live-insertion support.
PI74FCT16244CTVE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74FCT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm 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-SSOP
PI74FCT16244CTVE FAQ
1.How can I place an order for PI74FCT16244CTVE through Aetrix?
Please submit a Request for Quotation (RFQ) for PI74FCT16244CTVE 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 PI74FCT16244CTVE reliable?
The price and inventory of PI74FCT16244CTVE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74FCT16244CTVE is usually 5 days.
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4.How is shipping managed for PI74FCT16244CTVE?
PI74FCT16244CTVE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI74FCT16244CTVE 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 PI74FCT16244CTVE?
For technical support, including PI74FCT16244CTVE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74FCT16244CTVE requirements.
6.How does Aetrix verify that PI74FCT16244CTVE is sourced from the original manufacturer or authorized distributors?
All PI74FCT16244CTVE 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 PI74FCT16244CTVE meets industry standards.
7.What is the process for return or replacement of PI74FCT16244CTVE?
All PI74FCT16244CTVE units undergo pre-shipment inspection (PSI). If there is an issue with PI74FCT16244CTVE, 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 PI74FCT16244CTVE part is unused and in its original packaging.
Return procedure for PI74FCT16244CTVE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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