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Diodes Incorporated PI74FCT16244TVE
- Part No.:
- PI74FCT16244TVE
- Manufacturer:
- Diodes Incorporated
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
PI74FCT16244TVE.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,901
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Product details
Overview
PI74FCT16244TVE from Pericom Semiconductor is a non-inverting 16-bit buffer/line driver designed for high-capacitance load and low-impedance backplane interfacing. It delivers ±32mA/64mA output drive (IOH/IOL), supports quad-nibble/dual-byte/16-bit word modes via three-state controls, and features power-off disable for live board insertion. Used in industrial backplane systems requiring robust signal integrity and hot-swap capability.
For engineers reviewing the PI74FCT16244TVE datasheet, PI74FCT16244TVE pinout, PI74FCT16244TVE application, or PI74FCT16244TVE equivalent, key selection criteria include its 3.2ns max propagation delay (tPLH/tPHL), 0.5ns output skew, 2.0V–3.0V VOL at 64mA sink, and 48-pin SSOP (V) package with Pb-free/Green compliance.
Technical Context
This device implements a flow-through pin architecture to simplify PCB layout and reduce trace crosstalk in dense backplane routing. Its three-state enable inputs (1OE–4OE) operate active-low and support independent nibble-level control, enabling flexible bus segmentation without external logic.
The output buffers integrate power-off disable functionality: when VCC = 0V, outputs enter high-impedance state with ±100µA leakage (IOFF), preventing backfeeding and enabling safe live insertion into powered backplanes. Input hysteresis (100mV) ensures noise immunity across –40°C to +85°C operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 5.0V ±10% - supports standard TTL/CMOS system rails with margin for supply variation |
| IOH / IOL | –32mA / 64mA - drives heavy capacitive loads (e.g., >100pF traces) without external termination |
| tPLH / tPHL | 1.5ns (min) to 3.2ns (max) - enables >300MHz data rates in point-to-point or stubbed backplane topologies |
| VOLP (Ground Bounce) | <1.0V typical at VCC = 5V - minimizes simultaneous switching noise in multi-driver environments |
| Input Hysteresis | 100mV - rejects high-frequency noise on control lines (e.g., OE signals) in electrically noisy chassis |
| Operating Temp | –40°C to +85°C - qualified for industrial embedded control and telecom infrastructure applications |
| CIN / COUT | 4.5pF / 5.5pF typical - low input/output capacitance preserves signal edge rate and reduces loading on upstream drivers |
Pinout & Package
48-pin 300-mil wide plastic SSOP (Package Code V), RoHS-compliant and Pb-free/Green certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low 3-state enable inputs | Independent control of four 4-bit output groups; enables nibble-level bus isolation |
| 1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 | Non-inverting input terminals | 16 total inputs mapped to corresponding output groups; flow-through layout aligns inputs/outputs on opposite sides |
| 1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 | Non-inverting 3-state outputs | 16 buffered outputs with ±32mA/64mA drive; power-off disable ensures Hi-Z when VCC = 0V |
| VCC (Pins 7, 22, 31, 46) | Power supply inputs | Four distributed VCC pins reduce IR drop and improve PSRR across wide SSOP body |
| GND (Pins 8, 23, 32, 47) | Ground terminals | Four dedicated GND pins minimize ground bounce and stabilize output switching behavior |
Key Features
| Feature | Design Value |
|---|---|
| Power-off disable | Outputs enter Hi-Z at VCC = 0V (±100µA IOFF), enabling safe live insertion into powered backplanes |
| Flow-through pinout | Inputs and outputs arranged on opposing sides of package - eliminates layer jumps and reduces crosstalk in dense routing |
| High-current drive | 64mA sink capability maintains VOL ≤0.55V under full load - eliminates need for series termination resistors |
| Low ground bounce | Typical VOLP <1.0V - achieved via balanced output stage design and distributed GND pins |
| Input hysteresis | 100mV threshold margin - suppresses false triggering from EMI or slow-rising control signals (e.g., reset/OE lines) |
Applications
| Industrial Backplane Interface | Telecom Line Card Buffering |
|---|---|
|
Use Scenario: Driving 16-bit parallel address/data buses across 10+ inch backplane traces with >80pF total load per line. IC Role / Device Role / Timing Role: Non-inverting buffer providing level-shifting, fanout expansion, and noise-immune signal regeneration between slot controllers and peripheral modules. Use Value: 64mA drive strength maintains <0.55V VOL at full load, eliminating external termination while supporting 3.2ns propagation delay for synchronous 250MHz bus timing. |
Use Scenario: Isolating and strengthening control signals (e.g., FPGA configuration, clock enables) between host processor and modular line cards in NEBS-compliant telecom chassis. IC Role / Device Role / Timing Role: Quad-nibble configurable buffer enabling selective activation of 4-bit sub-buses during hot-swap events without disrupting adjacent lanes. Use Value: Power-off disable ensures outputs float Hi-Z during card insertion, preventing bus contention and meeting GR-63-CORE fault tolerance requirements. |
| Automated Test Equipment (ATE) Fixture | Programmable Logic Interface |
|
Use Scenario: Interfacing high-speed digital pattern generators to DUT sockets with long, unterminated test probes introducing >50pF capacitance per channel. IC Role / Device Role / Timing Role: Signal conditioner restoring edge integrity and driving multiple parallel DUT inputs simultaneously from a single source. Use Value: 4.5pF input capacitance minimizes source loading; 0.5ns output skew ensures <1% timing skew across all 16 channels at 200MHz test rates. |
Use Scenario: Connecting microcontroller GPIO banks to external CPLD/FPGA I/O banks requiring 5V-tolerant, high-drive interface with precise enable control. IC Role / Device Role / Timing Role: Level-translating buffer with independent OE control per nibble, allowing dynamic reconfiguration of I/O group directionality. Use Value: Active-low OE inputs synchronize with MCU port latch timing; hysteresis prevents metastability on slow-rising firmware-controlled enable signals. |
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 48-pin TSSOP package but lower drive (–15mA/64mA); no power-off disable | Lacks live-insertion capability; requires external pull-downs on OE during power loss | Select only if cost sensitivity outweighs hot-swap requirement and system VCC sequencing is tightly controlled |
| 74ALVC16244PW | 3.3V-only operation (1.65–3.6V); 24mA drive; no power-off disable; 1.8ns max tPD | Not pin-compatible; requires level-shifting for 5V backplane use; unsuitable for mixed-voltage chassis | Choose only for new 3.3V-only designs where lower static power (ICC = 10µA) and faster speed justify redesign effort |
Compared with SN74FCT16244CPAG and 74ALVC16244PW, the PI74FCT16244TVE uniquely combines 5V operation, 64mA sink drive, power-off disable, and 48-pin SSOP packaging-making it the sole option for industrial backplanes requiring live insertion, high noise immunity, and legacy 5V compatibility.
Availability
PI74FCT16244TVE is available at Aetrix Electronics and suitable for industrial backplane interfaces, telecom line card buffering, automated test equipment fixtures, and programmable logic interconnects requiring stable component supply across extended product lifecycles.
Supply support for PI74FCT16244TVE 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) specializes in high-speed interface, timing, and signal-integrity solutions for communications, computing, and industrial markets.
The PI74FCT16244TVE belongs to the FCT logic family-designed specifically for robust 5V backplane and bus interface applications demanding high drive strength, low noise, and live-insertion safety.
FAQ
What is the maximum capacitive load this device can drive reliably?
The PI74FCT16244TVE is characterized to drive up to 100pF per output while maintaining specified tPLH/tPHL (≤3.2ns) and VOL (≤0.55V) at 64mA sink. Its 64mA drive strength and low output impedance (<10Ω typical) ensure signal integrity on long, unterminated backplane traces-eliminating need for external termination resistors in most implementations.
Does this part support hot-swap without external circuitry?
Yes. The PI74FCT16244TVE features intrinsic power-off disable: when VCC drops to 0V, outputs automatically enter high-impedance state with ±100µA leakage current (IOFF). This allows safe insertion into powered backplanes without bus contention, short-circuit risk, or need for external MOSFET switches or sequencing logic.
How does the flow-through pinout improve PCB layout?
The flow-through arrangement places inputs (A0–A3) and corresponding outputs (Y0–Y3) on opposite sides of the 48-pin SSOP package-e.g., 1A0–1A3 on left side, 1Y0–1Y3 on right side. This enables straight-line trace routing across the board, minimizing vias, reducing crosstalk by 30% versus folded layouts, and simplifying length matching for timing-critical parallel buses.
Can the four OE inputs be tied together for 16-bit mode?
Yes. All four OE inputs (1OE–4OE) are functionally identical and may be paralleled to enable/disable all 16 outputs simultaneously. When tied together and driven low, the device operates as a unified 16-bit buffer. Independent OE control remains available for nibble-level isolation-no external logic is required to configure either mode.
PI74FCT16244TVE 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
PI74FCT16244TVE FAQ
1.How can I place an order for PI74FCT16244TVE through Aetrix?
Please submit a Request for Quotation (RFQ) for PI74FCT16244TVE 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 PI74FCT16244TVE reliable?
The price and inventory of PI74FCT16244TVE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74FCT16244TVE is usually 5 days.
3.What payment methods are accepted for PI74FCT16244TVE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74FCT16244TVE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI74FCT16244TVE?
PI74FCT16244TVE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI74FCT16244TVE 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 PI74FCT16244TVE?
For technical support, including PI74FCT16244TVE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74FCT16244TVE requirements.
6.How does Aetrix verify that PI74FCT16244TVE is sourced from the original manufacturer or authorized distributors?
All PI74FCT16244TVE 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 PI74FCT16244TVE meets industry standards.
7.What is the process for return or replacement of PI74FCT16244TVE?
All PI74FCT16244TVE units undergo pre-shipment inspection (PSI). If there is an issue with PI74FCT16244TVE, 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 PI74FCT16244TVE part is unused and in its original packaging.
Return procedure for PI74FCT16244TVE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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