Diodes Incorporated PI74FCT162245CTAE
- Part No.:
- PI74FCT162245CTAE
- Manufacturer:
- Diodes Incorporated
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
PI74FCT162245CTAE.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
PI74FCT162245CTAE from Pericom Semiconductor is a 16-bit bidirectional CMOS transceiver with ±24mA balanced output drivers, 5V supply operation, and 48-pin TSSOP (A) package. It enables asynchronous two-way data bus communication between A- and B-side buses, supports dual 8-bit or single 16-bit configuration via DIR/OE controls, and reduces ground bounce (<0.6V typical) for high-noise-margin industrial backplane interfaces.
For engineers reviewing the PI74FCT162245CTAE datasheet, PI74FCT162245CTAE pinout, PI74FCT162245CTAE application, or PI74FCT162245CTAE equivalent, key selection criteria include its balanced drive strength, low-VOLP performance, direction-controlled bidirectional flow, and compatibility with 5V TTL/CMOS logic families in space-constrained board designs.
Technical Context
This device implements dual independent 8-bit or unified 16-bit bidirectional data transfer using separate DIR and OE inputs per side pair. Its output buffers integrate on-die current-limiting resistors to control edge rates, minimizing simultaneous switching noise without external termination.
The transceiver operates across –40°C to +85°C with VCC = 5.0V ±10%, features hysteresis on all inputs for noise immunity, and guarantees propagation delay ≤4.1 ns (max) and output skew ≤0.5 ns under CL = 50 pF / RL = 500 Ω conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5.0V ±10% - compatible with standard 5V logic rails and tolerant of power rail variation |
| Output Drive | ±24mA - balanced sourcing/sinking ensures symmetrical signal integrity on shared buses |
| Propagation Delay | ≤4.1 ns max - supports high-speed bus handshaking up to ~240 MHz effective toggle rate |
| Ground Bounce (VOLP) | <0.6V typical at 5V/25°C - enables clean switching in dense PCB layouts without added decoupling |
| Input Hysteresis | 100 mV - rejects noise on control lines (DIR/OE) in electrically noisy industrial environments |
| Operating Temp | –40°C to +85°C - qualified for extended-temperature industrial and telecom equipment |
| IOZ Leakage | ±1 µA max - ensures reliable Hi-Z isolation during bus arbitration or hot-swap events |
Pinout & Package
Package: 48-pin, 240-mil wide plastic TSSOP (RoHS-compliant, Pb-free & Green).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction Control Input | Determines data flow direction per 8-bit segment (A→B or B→A); active-HIGH logic |
| 1OE, 2OE | Output Enable Input | Active-LOW control enabling/disabling respective 8-bit port outputs to Hi-Z state |
| 1A0–1A7, 2A0–2A7 | Side A I/O Terminals | Bidirectional data pins for first and second 8-bit bus segment (A-side) |
| 1B0–1B7, 2B0–2B7 | Side B I/O Terminals | Bidirectional data pins for first and second 8-bit bus segment (B-side) |
| VCC (Pins 7,22,37,46) | Power Supply | Four distributed VCC pins reduce IR drop and improve PSRR across high-speed switching |
| GND (Pins 3,18,33,48) | Ground Reference | Four dedicated GND pins minimize ground loop inductance and stabilize output transitions |
Key Features
| Feature | Design Value |
|---|---|
| Balanced ±24mA Outputs | Enables matched rise/fall times on shared transmission lines, reducing EMI and timing skew |
| On-die Edge Rate Control | Eliminates need for external series resistors in most point-to-point or stubbed bus topologies |
| Low Ground Bounce (<0.6V) | Supports reliable multi-drop bus operation without additional ground plane stitching or split planes |
| Hysteresis on All Inputs | Prevents false triggering on DIR/OE control lines during voltage ramp-up or ESD transients |
| Hi-Z Power-Down Mode | Allows safe insertion/removal of daughter cards into live backplanes without bus contention |
Applications
| Industrial Backplane Interface | Telecom Line Card Data Bridge |
|---|---|
Use Scenario: Interfacing processor local bus to peripheral expansion slots in ruggedized PLC chassis. IC Role / Device Role / Timing Role: Bidirectional level-shifting transceiver managing asynchronous read/write cycles between CPU and I/O modules. Use Value: ±24mA drive and low VOLP ensure signal fidelity across 15 cm backplane traces with multiple stubs and no external termination. | Use Scenario: Connecting FPGA-based packet processing engine to legacy TDM interface ASIC on modular line card. IC Role / Device Role / Timing Role: Direction-controlled data conduit synchronizing parallel 16-bit data transfers between clock domains. Use Value: Dual 8-bit mode allows independent control of control/status vs. payload data paths, improving debug visibility and fault isolation. |
| Automotive Diagnostic Gateway | Test Equipment Bus Extender |
Use Scenario: Isolating microcontroller UART and CAN controller buses from external diagnostic port connectors subject to ESD and load variation. IC Role / Device Role / Timing Role: Robust bidirectional buffer providing transient protection and bus arbitration capability. Use Value: Input hysteresis and guaranteed –40°C to +85°C operation maintain functional safety compliance under vehicle cabin thermal cycling. | Use Scenario: Extending 16-bit parallel address/data bus from mainframe controller to modular instrument plug-in cards. IC Role / Device Role / Timing Role: Low-skew (≤0.5 ns), fast-enable (≤5.8 ns) transceiver preserving setup/hold timing margins across hot-swappable modules. Use Value: Fast enable/disable and Hi-Z power-down support concurrent module replacement without system reset or bus lockup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit bidirectional transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74FCT162245CTPWR | TI part with identical pinout, ±24mA drive, but higher ICCD (120 µA/MHz vs. 60–100 µA/MHz) and no guaranteed VOLP spec | Valid for cost-sensitive consumer-grade systems where ground bounce margin is less critical | Select when TI supply chain alignment is required and dynamic power budget allows +2× switching current |
| 74LVC162245APAG | 3.3V-only operation (1.65–3.6V), lower drive (±24mA @ 3.3V), different pinout (TSSOP-48 but non-identical mapping), no hysteresis | Suitable only for mixed-voltage 3.3V systems requiring level translation, not direct 5V replacement | Choose only when migrating to 3.3V infrastructure and redesigning PCB layout and control logic |
Compared with SN74FCT162245CTPWR and 74LVC162245APAG, PI74FCT162245CTAE delivers superior noise immunity (hysteresis), tighter ground bounce control (<0.6V), and optimized 5V dynamic power efficiency-making it preferred for industrial backplanes and hot-swap-capable systems where signal integrity and thermal stability are design-critical.
Availability
PI74FCT162245CTAE is available at Aetrix Electronics and suitable for industrial backplane interfaces, telecom line card bridging, automotive diagnostic gateways, and test equipment bus extension requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PI74FCT162245CTAE 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 was a fabless provider of high-speed interface, timing, and signal integrity solutions, later acquired by Diodes Incorporated in 2016; its FCT logic portfolio remains widely deployed in industrial and communications infrastructure.
The PI74FCT162245 series belongs to Pericom's Fast CMOS transceiver product line, engineered specifically for low-noise, high-drive bidirectional bus interfacing in 5V systems with stringent EMI and hot-swap requirements.
FAQ
What is the maximum data rate supported by PI74FCT162245CTAE?
The device does not specify a serial data rate, but its 4.1 ns maximum propagation delay and 0.5 ns output skew support parallel bus toggling up to approximately 240 MHz (based on tPHL + tPLH worst-case sum). System-level timing depends on trace length, loading, and controller setup/hold margins-not an intrinsic clock frequency limit.
Can PI74FCT162245CTAE operate at 3.3V?
No. The device is specified only for VCC = 5.0V ±10% (4.5V to 5.5V). Operation below 4.5V violates Absolute Maximum Ratings and risks undefined logic states, increased propagation delay, and failure to meet output drive specifications. It is not 3.3V-tolerant.
Does PI74FCT162245CTAE support hot-swap insertion?
Yes. Its power-off disable feature ensures outputs enter Hi-Z when VCC = 0V, and input clamp diodes (VIK = –0.7V to –1.2V) protect against back-driving during live insertion. This enables safe use in backplane systems where boards are inserted/removed while powered.
How many devices can be connected on the same A- or B-bus?
Up to 10 units may share one bus side (A or B) under standard 50 pF load assumptions, based on total capacitive loading (CIN = 4.5 pF typ., COUT = 5.5 pF typ.) and driver strength. For longer traces or >10 loads, verify signal integrity via IBIS simulation or bench measurement with actual PCB stackup.
PI74FCT162245CTAE 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:
- Transceiver, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
PI74FCT162245CTAE FAQ
1.How can I place an order for PI74FCT162245CTAE through Aetrix?
Please submit a Request for Quotation (RFQ) for PI74FCT162245CTAE 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 PI74FCT162245CTAE reliable?
The price and inventory of PI74FCT162245CTAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74FCT162245CTAE is usually 5 days.
3.What payment methods are accepted for PI74FCT162245CTAE?
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4.How is shipping managed for PI74FCT162245CTAE?
PI74FCT162245CTAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI74FCT162245CTAE 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 PI74FCT162245CTAE?
For technical support, including PI74FCT162245CTAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74FCT162245CTAE requirements.
6.How does Aetrix verify that PI74FCT162245CTAE is sourced from the original manufacturer or authorized distributors?
All PI74FCT162245CTAE 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 PI74FCT162245CTAE meets industry standards.
7.What is the process for return or replacement of PI74FCT162245CTAE?
All PI74FCT162245CTAE units undergo pre-shipment inspection (PSI). If there is an issue with PI74FCT162245CTAE, 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 PI74FCT162245CTAE part is unused and in its original packaging.
Return procedure for PI74FCT162245CTAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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