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Diodes Incorporated PI74FCT162245ATAE
- Part No.:
- PI74FCT162245ATAE
- Manufacturer:
- Diodes Incorporated
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
PI74FCT162245ATAE.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,754
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Product details
Overview
PI74FCT162245ATAE from Pericom Semiconductor is a 16-bit bidirectional CMOS transceiver in 48-pin TSSOP (240-mil width), designed for asynchronous two-way data bus interfacing between dissimilar logic domains. It features ±24mA balanced output drivers, 5V ±10% supply operation, hysteresis on all inputs, and low ground bounce (<0.6V typical) for noise-sensitive industrial backplane applications.
For engineers reviewing the PI74FCT162245ATAE datasheet, PI74FCT162245ATAE pinout, PI74FCT162245ATAE application, or PI74FCT162245ATAE equivalent, key selection criteria include bidirectional flow control via DIR/OE pins, Hi-Z output enable timing (max 9.5 ns), ±24mA drive capability, and compatibility with TTL/CMOS mixed-voltage bus translation.
Technical Context
This device implements dual 8-bit or unified 16-bit bidirectional data transfer using separate direction (DIR) and output enable (OE) controls per port pair. Its balanced ±24mA drivers incorporate integrated current-limiting resistors to suppress edge-rate-induced ground bounce and undershoot without external termination.
It operates across –40°C to +85°C ambient, supports 5V ±10% VCC, and delivers propagation delay ≤7.0 ns (A↔B) under 50 pF/500 Ω load. Input hysteresis ensures noise immunity on control and data lines, while power-off disable is not implemented-distinguishing it from the PI74FCT16245T variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5V ±10% - compatible with standard TTL/CMOS logic rails and industrial 5V systems |
| Output Drive | ±24mA - balanced sourcing/sinking enables clean signal integrity on stubbed or unterminated buses |
| Propagation Delay | ≤7.0 ns - supports high-speed data transfer up to ~140 MHz clock-equivalent rates |
| Ground Bounce | <0.6V typical - reduces simultaneous switching noise in dense PCB layouts |
| Input Hysteresis | 100 mV - improves noise margin against EMI and crosstalk on control/data lines |
| Operating Temp | –40°C to +85°C - qualified for industrial temperature-grade embedded and communications equipment |
| Package | 48-pin TSSOP (240-mil width, Pb-free & Green) - surface-mount compatible with standard reflow profiles |
Pinout & Package
PI74FCT162245ATAE uses a 48-pin thin shrink small outline package (TSSOP) with 0.5 mm pitch, 240-mil body width, and exposed pad-less construction. Pin 1 is marked by a beveled corner; pin numbering follows standard counter-clockwise sequence from top-left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction Control Input | Determines data flow direction per 8-bit port (L = B→A, H = A→B) |
| 1OE, 2OE | Output Enable (Active LOW) | Drives both A/B ports into Hi-Z when HIGH; enables bus isolation |
| 1A0–1A7, 2A0–2A7 | Port A I/O Terminals | Side-A bidirectional data lines; function as inputs or 3-state outputs based on DIR/OE |
| 1B0–1B7, 2B0–2B7 | Port B I/O Terminals | Side-B bidirectional data lines; function as inputs or 3-state outputs based on DIR/OE |
| VCC (Pins 7, 22, 37) | Power Supply | Single 5V supply rail; three dedicated pins reduce IR drop and improve decoupling |
| GND (Pins 14, 29, 44) | Ground Reference | Three GND pins minimize ground loop impedance and stabilize switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Balanced ±24mA Output Drivers | Enables matched rise/fall times and minimizes bus skew without external termination |
| Integrated Edge-Rate Control | On-die current-limiting resistors suppress ground bounce and undershoot below 0.6V |
| Hysteresis on All Inputs | 100 mV input threshold hysteresis rejects transient noise on DIR/OE/data lines |
| Hi-Z Output Enable Timing | Max 9.5 ns enable/disable latency ensures deterministic bus arbitration in real-time systems |
| Industrial Temperature Range | –40°C to +85°C operation supports deployment in factory automation and telecom infrastructure |
Applications
| Industrial Backplane Interfacing | Legacy Bus Translation |
|---|---|
Use Scenario: Connecting microcontroller local bus to isolated peripheral expansion slots in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional level-shifting transceiver managing asynchronous data exchange between CPU and field I/O modules. Use Value: ±24mA drive and low ground bounce ensure reliable communication across long, unshielded backplane traces at 20+ Mbps. | Use Scenario: Bridging 3.3V FPGA I/O banks to legacy 5V ISA or PCI-X peripherals in test instrumentation. IC Role / Device Role / Timing Role: Voltage-tolerant bidirectional buffer enabling safe, hot-pluggable interconnection between mixed-voltage subsystems. Use Value: Hysteresis and 5V-tolerant inputs prevent metastability during voltage domain crossing without external clamping. |
| High-Density Data Acquisition | Modular Sensor Hub Interface |
Use Scenario: Aggregating parallel ADC/DAC data streams from multiple sensor nodes onto a central processing bus. IC Role / Device Role / Timing Role: Synchronized 16-bit data multiplexer/demultiplexer controlled via shared DIR/OE signals. Use Value: Propagation delay ≤7.0 ns and output skew ≤0.5 ns preserve timing alignment across 16-channel sampled data paths. | Use Scenario: Interfacing heterogeneous sensor modules (I²C, SPI, analog) to a main controller via standardized parallel bus headers. IC Role / Device Role / Timing Role: Reconfigurable bidirectional data conduit supporting plug-and-play module detection and configuration. Use Value: Dual 8-bit mode allows independent control of sensor command (A→B) and response (B→A) channels with minimal GPIO overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74FCT162245CPAG | Same ±24mA drive, identical pinout, but TI-manufactured with different AC specs (tPHL max 8.5 ns vs. 7.0 ns) | Slightly higher propagation delay limits maximum bus frequency in time-critical designs | Select if TI supply chain alignment or legacy qualification requirements dominate |
| 74ALVC162245PW | 3.3V-only supply (1.65–3.6V), lower drive (±24mA @ 3.3V), no hysteresis, different pinout | Not suitable for 5V systems; requires level-shifting for legacy interface use | Choose only for new 3.3V-only designs where voltage scaling and lower power are primary goals |
Compared with SN74FCT162245CPAG and 74ALVC162245PW, PI74FCT162245ATAE offers tighter propagation delay, built-in hysteresis, and native 5V operation-making it optimal for industrial backplanes and mixed-voltage upgrades where signal integrity and noise immunity are critical.
Availability
PI74FCT162245ATAE is available at Aetrix Electronics and suitable for industrial backplane interfacing, legacy bus translation, and high-density data acquisition requiring stable component supply across extended product lifecycles.
Supply support for PI74FCT162245ATAE 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, acquired by Diodes Incorporated in 2016; its legacy 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 bridging in noise-sensitive 5V systems such as telecom line cards and factory automation controllers.
FAQ
What is the maximum data rate supported by PI74FCT162245ATAE?
While not specified as a data rate, the device's 7.0 ns maximum propagation delay and 0.5 ns output skew support reliable operation at effective bus frequencies up to approximately 140 MHz under 50 pF/500 Ω load conditions. Actual achievable rate depends on PCB layout, termination, and system-level timing margins.
Can PI74FCT162245ATAE operate with 3.3V logic levels?
No. PI74FCT162245ATAE is a 5V-only device with VCC specification of 5V ±10%. Its inputs are 5V-tolerant but require ≥2.0V VIH and ≤0.8V VIL thresholds; direct connection to 3.3V-only systems risks incorrect logic interpretation unless level-shifted.
Does PI74FCT162245ATAE support live insertion or hot-swap?
No. Unlike the PI74FCT16245T variant, this part lacks power-off disable functionality. Its outputs do not enter Hi-Z when VCC = 0V, making it unsuitable for live insertion into powered backplanes without additional isolation circuitry.
How many ground and power pins does PI74FCT162245ATAE have?
The 48-pin TSSOP package has three dedicated VCC pins (7, 22, 37) and three GND pins (14, 29, 44). This triple-supply and triple-ground configuration reduces impedance in high-current switching scenarios and improves noise suppression across the 16-bit data path.
PI74FCT162245ATAE 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
PI74FCT162245ATAE FAQ
1.How can I place an order for PI74FCT162245ATAE through Aetrix?
Please submit a Request for Quotation (RFQ) for PI74FCT162245ATAE 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 PI74FCT162245ATAE reliable?
The price and inventory of PI74FCT162245ATAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74FCT162245ATAE is usually 5 days.
3.What payment methods are accepted for PI74FCT162245ATAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74FCT162245ATAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI74FCT162245ATAE?
PI74FCT162245ATAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI74FCT162245ATAE 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 PI74FCT162245ATAE?
For technical support, including PI74FCT162245ATAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74FCT162245ATAE requirements.
6.How does Aetrix verify that PI74FCT162245ATAE is sourced from the original manufacturer or authorized distributors?
All PI74FCT162245ATAE 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 PI74FCT162245ATAE meets industry standards.
7.What is the process for return or replacement of PI74FCT162245ATAE?
All PI74FCT162245ATAE units undergo pre-shipment inspection (PSI). If there is an issue with PI74FCT162245ATAE, 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 PI74FCT162245ATAE part is unused and in its original packaging.
Return procedure for PI74FCT162245ATAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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