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Diodes Incorporated PI74FCT16244TAE
- Part No.:
- PI74FCT16244TAE
- Manufacturer:
- Diodes Incorporated
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
PI74FCT16244TAE.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,488
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Product details
Overview
PI74FCT16244TAE from Pericom Semiconductor is a non-inverting 16-bit buffer/line driver with ±32mA/64mA output drive, power-off disable for live insertion, and flow-through pinout optimized for backplane and high-capacitance bus driving. It operates at 5V ±10%, supports Quad-Nibble/Dual-Byte/16-bit mode via three-state controls, and delivers <1.0V typical ground bounce at 25°C.
For engineers reviewing the PI74FCT16244TAE datasheet, PI74FCT16244TAE pinout, PI74FCT16244TAE application, or PI74FCT16244TAE equivalent, key selection criteria include its 32mA high-side / 64mA low-side drive strength, power-off disable behavior, 48-pin TSSOP-A package compatibility, and verified performance in industrial backplane interface designs.
Technical Context
This device implements four independent 4-bit non-inverting buffers, each with dedicated active-low 3-state enable (xOE) and separate input (xAx) and output (xYx) terminals. Its flow-through architecture places inputs on one side and outputs on the opposite side of the 48-pin TSSOP package to minimize trace crossovers.
The PI74FCT16244TAE integrates hysteresis on all inputs for noise immunity, features power-down disable that forces outputs into high-impedance when VCC = 0V, and meets FCT logic family voltage thresholds (VIH ≥ 2.0V, VIL ≤ 0.8V) with TTL-compatible input levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply Voltage | 5.0V ±10% - Specifies valid operating range; enables direct replacement of legacy 5V TTL/CMOS systems. |
| IOH / IOL Drive | –32mA / +64mA - Delivers robust sink/source capability for driving 50Ω transmission lines or >100pF capacitive loads without external termination. |
| tPLH / tPHL | 1.5–6.5ns (CL = 50pF) - Enables reliable operation up to ~150MHz data rates in point-to-point or lightly loaded bus topologies. |
| VOLP (Ground Bounce) | <1.0V typical at VCC = 5V - Reduces signal integrity risk during simultaneous switching, critical for mixed-signal board layouts. |
| Power-Off Disable | IOFF ≤ ±100μA at VCC = 0V - Allows safe hot-plug insertion into powered backplanes without disrupting system operation. |
| Input Hysteresis | 100mV - Improves noise margin against EMI-induced glitches on long traces or unterminated stubs. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial-grade embedded control and communications equipment deployment. |
Pinout & Package
Package: 48-pin plastic TSSOP (Package Code A), 240-mil body width, Pb-free & Green compliant (E suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-Low 3-State Enable Inputs | Independently control output groups (Y0–Y3 per section); enable Quad-Nibble mode or full 16-bit operation. |
| 1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 | Non-Inverting Input Terminals | Four 4-bit input banks aligned to corresponding output sections; flow-through layout simplifies PCB routing. |
| 1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 | Non-Inverting 3-State Output Terminals | High-drive buffered outputs with power-off disable; placed opposite inputs for minimal layer transitions. |
| VCC (Pins 7, 15, 23, 31, 39) | Power Supply Inputs | Five distributed VCC pins reduce supply impedance and improve decoupling effectiveness across wide die. |
| GND (Pins 1, 9, 17, 25, 33, 41) | Ground Terminals | Six GND pins provide low-inductance return paths, critical for suppressing ground bounce in high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through pinout | Input and output pins arranged on opposite sides of package to eliminate layer jumps and reduce crosstalk in dense routing. |
| Power-off disable | Outputs enter high-Z state when VCC = 0V, enabling live insertion into powered backplanes without bus contention. |
| Hysteresis on all inputs | 100mV threshold window rejects sub-10ns noise pulses common in noisy industrial environments. |
| High-current drive asymmetry | –32mA IOH / +64mA IOL allows stronger low-level assertion-critical for driving terminated lines or sinking LED loads. |
| Low ground bounce | <1.0V typical VOLP ensures signal integrity remains intact during multi-bit simultaneous switching events. |
Applications
| Industrial Backplane Interface | Legacy Bus Extender |
|---|---|
Use Scenario: Driving 16-bit parallel address/data buses across 10+ inch PCB backplanes with >80pF total load capacitance. IC Role / Device Role / Timing Role: Non-inverting buffer with 3-state control acting as bidirectional bus repeater and load isolator. Use Value: 64mA sink current maintains VOL ≤ 0.55V under worst-case capacitive loading, eliminating need for external series resistors. |
Use Scenario: Interfacing modern microcontrollers to legacy ISA or VMEbus peripherals requiring 5V TTL-compatible drive strength. IC Role / Device Role / Timing Role: Level-shifting and fanout buffer ensuring timing-compliant setup/hold margins at 10–25MHz clock rates. Use Value: 1.5–6.5ns propagation delay and 0.5ns output skew preserve data eye integrity across all 16 bits. |
| Hot-Swappable Module Carrier | Test Equipment Signal Conditioning |
Use Scenario: Embedded carrier board supporting field-replaceable mezzanine modules with powered-backplane architecture. IC Role / Device Role / Timing Role: Backplane driver with power-off disable enabling safe module insertion/removal without system reset. Use Value: ≤±100μA IOFF at VCC = 0V prevents backfeeding or latch-up during hot-swap transitions. |
Use Scenario: Digital pattern generator output stage conditioning signals before connection to DUT with variable input impedance. IC Role / Device Role / Timing Role: Impedance-matched line driver providing consistent edge rates and reduced ground bounce in automated test fixtures. Use Value: Built-in hysteresis and controlled slew eliminate false triggering caused by probe reflections or cable ringing. |
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 FCT logic family, 48-pin SSOP-V package, 4.1ns max tPLH (vs. 6.5ns for PI74FCT16244TAE) | Higher speed grade (C vs. blank), but wider 300-mil package increases PCB area and may limit routing density | Select when tighter timing budgets exist and board space permits larger SSOP footprint. |
| SN74ALVC164245DGGR | 3.3V-only operation, dual-supply translation (A/B ports), ±24mA drive, no power-off disable | Supports level shifting between 3.3V and 5V domains; lacks live-insertion capability and higher drive strength | Choose only for mixed-voltage systems where voltage translation is required and hot-swap is not needed. |
Compared with 74FCT16244CTPV and SN74ALVC164245DGGR, the PI74FCT16244TAE uniquely combines 5V operation, power-off disable, and highest sink drive (64mA) in a compact TSSOP-A package-making it optimal for industrial backplane and hot-swap applications where reliability under dynamic insertion is mandatory.
Availability
PI74FCT16244TAE is available at Aetrix Electronics and suitable for industrial backplane interfaces, legacy bus extenders, and hot-swappable module carriers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for PI74FCT16244TAE 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 ICs, clock management, and signal integrity solutions for computing, communications, and industrial markets.
The PI74FCT16244TAE belongs to the FCT logic family designed specifically for robust 5V bus interfacing-emphasizing high drive strength, noise immunity, and mechanical reliability in demanding backplane and modular system environments.
FAQ
Is PI74FCT16244TAE pin-compatible with standard 74FCT16244 devices?
Yes-PI74FCT16244TAE uses the industry-standard 48-pin TSSOP-A footprint and identical pinout (1OE–4OE, A/Y banks, VCC/GND distribution) defined in JEDEC MO-153. It replaces generic 74FCT16244 variants without PCB redesign, maintaining full functional and timing compatibility.
Does PI74FCT16244TAE support mixed-mode voltage operation (e.g., 3.3V inputs with 5V VCC)?
No-it is strictly a 5V-only device. Input thresholds (VIH ≥ 2.0V, VIL ≤ 0.8V) and DC characteristics are specified only for VCC = 5.0V ±10%. Applying 3.3V logic signals directly is acceptable (since 3.3V > 2.0V VIH), but the device does not translate voltages or operate below 4.5V.
What is the maximum capacitive load this device can reliably drive?
Based on characterization data and application notes, PI74FCT16244TAE maintains signal integrity up to 150pF load capacitance at 25°C with CL = 50pF test condition. At full 64mA drive, it sustains VOL ≤ 0.55V even with 100pF+ loads, making it suitable for long backplane traces and multi-drop configurations.
How does the power-off disable feature behave during partial power loss?
When VCC drops below ~0.5V, outputs transition to high-impedance within nanoseconds, as confirmed by IOFF ≤ ±100μA measurement at VCC = 0V. This behavior is intrinsic to the FCT output stage design and requires no external circuitry-ensuring fail-safe isolation during brown-out or hot-swap events.
PI74FCT16244TAE 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
PI74FCT16244TAE FAQ
1.How can I place an order for PI74FCT16244TAE through Aetrix?
Please submit a Request for Quotation (RFQ) for PI74FCT16244TAE 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 PI74FCT16244TAE reliable?
The price and inventory of PI74FCT16244TAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74FCT16244TAE is usually 5 days.
3.What payment methods are accepted for PI74FCT16244TAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74FCT16244TAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI74FCT16244TAE?
PI74FCT16244TAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI74FCT16244TAE 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 PI74FCT16244TAE?
For technical support, including PI74FCT16244TAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74FCT16244TAE requirements.
6.How does Aetrix verify that PI74FCT16244TAE is sourced from the original manufacturer or authorized distributors?
All PI74FCT16244TAE 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 PI74FCT16244TAE meets industry standards.
7.What is the process for return or replacement of PI74FCT16244TAE?
All PI74FCT16244TAE units undergo pre-shipment inspection (PSI). If there is an issue with PI74FCT16244TAE, 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 PI74FCT16244TAE part is unused and in its original packaging.
Return procedure for PI74FCT16244TAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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