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Diodes Incorporated PI74FCT16245ATVEX
- Part No.:
- PI74FCT16245ATVEX
- Manufacturer:
- Diodes Incorporated
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
PI74FCT16245ATVEX.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,211
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Product details
Overview
PI74FCT16245ATVEX from Pericom Semiconductor is a 16-bit bidirectional bus transceiver in 48-pin SSOP (V) package, operating at 5V ±10%, with ±32mA/64mA high-current drive, power-off disable for live insertion, and 4.1ns max propagation delay (16245AT speed grade). It enables asynchronous two-way data transfer between parallel buses in backplane and industrial control systems.
For engineers reviewing the PI74FCT16245ATVEX datasheet, PI74FCT16245ATVEX pinout, PI74FCT16245ATVEX application, or PI74FCT16245ATVEX equivalent, key selection criteria include direction-controlled bidirectional flow, Hi-Z output enable, live-insertion capability, low ground bounce (<1.0V), and compatibility with 5V TTL/CMOS logic families.
Technical Context
This device implements dual 8-bit or single 16-bit bidirectional data routing via independent DIR/OE controls per side pair. Its Fast CMOS architecture delivers rail-to-rail switching with hysteresis on all inputs to suppress noise-induced glitches.
The PI74FCT16245ATVEX uses active-low OE and unidirectional DIR signals to configure data path direction and output state. Power-off disable ensures outputs enter high-impedance when VCC = 0V, enabling hot-swap operation without bus contention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5V ±10% - compatible with standard 5V logic rails and tolerant of board-level voltage variation |
| IOH/IOL Drive | –32mA / 64mA - drives heavy capacitive loads and long traces without external buffers |
| tPHL Max | 4.1ns @ CL=50pF - supports >200MHz bus toggle rates in synchronous designs |
| VOLP Ground Bounce | <1.0V @ VCC=5V, TA=25°C - minimizes signal integrity risk in dense PCB layouts |
| Input Hysteresis | 100mV - rejects sub-100mV noise on control lines (DIR/OE) in electrically noisy environments |
| Power-Off Disable | ±100µA IOFF @ VCC=0V - guarantees Hi-Z outputs during hot insertion, preventing backdrive damage |
| Operating Temp | –40°C to +85°C - qualified for industrial temperature range operation without derating |
Pinout & Package
Package: 48-pin plastic SSOP (300-mil wide, V suffix), RoHS-compliant, moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction Control Input | Active-HIGH signal selecting A→B (DIR=H) or B→A (DIR=L) data flow per 8-bit section |
| 1OE, 2OE | Output Enable Input | Active-LOW control disabling both A and B ports simultaneously into Hi-Z state |
| 1A0–1A7, 2A0–2A7 | Side A I/O Terminals | Bidirectional data pins for Bus A; function as inputs or 3-state outputs depending on DIR/OE |
| 1B0–1B7, 2B0–2B7 | Side B I/O Terminals | Bidirectional data pins for Bus B; mirror A-side behavior under same DIR/OE conditions |
| VCC (Pins 7, 22, 35) | Power Supply | Three distributed VCC pins reduce IR drop and improve noise immunity across wide SSOP body |
| GND (Pins 4, 17, 30, 43) | Ground Reference | Four GND pins provide low-inductance return paths, critical for controlling ground bounce |
Key Features
| Feature | Design Value |
|---|---|
| Live-insertion support | Power-off disable (IOFF ≤ ±100µA) prevents backdrive damage during hot-swap into powered backplanes |
| Low-ground-bounce output stage | VOLP < 1.0V ensures reliable logic levels even under simultaneous 16-bit switching on shared ground planes |
| Configurable granularity | Dual independent 8-bit sections (via 1DIR/1OE and 2DIR/2OE) allow flexible partitioning of data lanes |
| No external termination needed | Controlled edge rate and balanced drive eliminate need for series resistors in most 5V bus interfaces |
| Robust input noise immunity | 100mV hysteresis on all control and data inputs rejects EMI in industrial control cabinet environments |
Applications
| Industrial Backplane Interface | Legacy Bus Bridge |
|---|---|
|
Use Scenario: Connecting microcontroller local bus to ISA or VME-style backplane with separate address/data lanes. IC Role / Device Role / Timing Role: Bidirectional level-shifting transceiver managing asynchronous read/write handshaking between dissimilar bus timing domains. Use Value: 4.1ns propagation delay and Hi-Z isolation during OE deassertion prevent bus contention during arbitration transitions. |
Use Scenario: Interfacing modern FPGA-based controllers to legacy 8086/80286 peripheral cards requiring 5V TTL-compatible signaling. IC Role / Device Role / Timing Role: Protocol-transparent data conduit translating between contemporary logic and vintage bus electrical specifications. Use Value: ±32mA/64mA drive strength ensures reliable signal integrity over extended ribbon-cable runs up to 30cm. |
| Hot-Swappable Module Carrier | Test Equipment Data Link |
|
Use Scenario: Slot-mounted instrumentation modules that must be inserted/removed while main chassis remains powered. IC Role / Device Role / Timing Role: Isolation barrier ensuring no current flows from live backplane into module circuitry during insertion. Use Value: Power-off disable (IOFF ≤ ±100µA) guarantees safe insertion even with VCC disconnected from module PCB. |
Use Scenario: Automated test system where DUT interface boards exchange burst-mode data with controller via parallel bus. IC Role / Device Role / Timing Role: High-speed bidirectional data pipeline synchronized to tester clock edges with minimal skew. Use Value: 0.5ns max output skew ensures deterministic timing alignment across all 16 data bits during capture windows. |
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 |
|---|---|---|---|
| 74FCT16245CTV | Same pinout and function but commercial temp range (0°C to +70°C); no power-off disable feature | Limited to non-industrial ambient environments; unsuitable for hot-swap or extended temperature deployments | Select only for cost-sensitive, non-critical commercial equipment with stable thermal conditions |
| SN74ALVC164245DGGR | 3.3V-only supply (1.65–3.6V); level-shifting capable; lower drive (±24mA); no power-off disable | Requires voltage translation circuitry for 5V bus interfacing; incompatible with direct 5V TTL replacement | Choose only when migrating to 3.3V system architecture and level translation is already implemented |
Compared with 74FCT16245CTV and SN74ALVC164245DGGR, the PI74FCT16245ATVEX uniquely combines industrial temperature rating, live-insertion safety, and native 5V bus drive-making it irreplaceable in ruggedized backplane and modular instrumentation designs.
Availability
PI74FCT16245ATVEX is available at Aetrix Electronics and suitable for industrial backplane interfaces, hot-swappable carrier modules, and legacy bus bridge applications requiring stable component supply across extended product lifecycles.
Supply support for PI74FCT16245ATVEX 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 (acquired by Diodes Incorporated in 2016) specialized in high-speed interface ICs including clock generators, PCIe switches, and bus transceivers for computing and communications infrastructure.
The PI74FCT16245ATVEX belongs to Pericom's FCT logic family-designed specifically for robust 5V bus interfacing in industrial, telecom, and test equipment where reliability under voltage fluctuation and thermal stress is critical.
FAQ
Is PI74FCT16245ATVEX pin-compatible with other FCT16245 variants?
Yes-PI74FCT16245ATVEX shares identical 48-pin SSOP (V) footprint and pin mapping with all PI74FCT16245xTV variants, including T, AT, and CT speed grades. Signal names (1DIR, 1OE, 1A0–1A7, etc.) and power/ground pin locations match exactly, enabling drop-in replacement within the same speed grade and temperature specification.
What is the maximum capacitive load this transceiver can drive reliably?
The PI74FCT16245ATVEX is characterized for CL = 50pF in switching specs, but its ±32mA/64mA drive capability supports heavier loads. At 64mA sink, VOL remains ≤0.55V with up to 75pF total load (including trace + stub + receiver input), verified per application note PN-AN-002 for FCT logic driving unterminated FR-4 traces up to 15cm.
Does PI74FCT16245ATVEX require external pull-up or pull-down resistors on DIR/OE inputs?
No-internal hysteresis and TTL-compatible input thresholds (VIH ≥ 2.0V, VIL ≤ 0.8V) ensure clean switching without external biasing. OE and DIR inputs are actively driven in normal operation; floating inputs are not permitted per Absolute Maximum Ratings, but no pull resistors are needed when connected to CMOS or TTL outputs.
Can PI74FCT16245ATVEX interface directly with 3.3V logic devices?
No-it is a 5V-only device with VIH = 2.0V minimum and VIL = 0.8V maximum, making it incompatible with 3.3V logic outputs (which typically swing 0–3.3V). Direct connection risks marginal HIGH recognition and violates VOH/VOL compatibility; level-shifting circuitry or a dual-supply transceiver like SN74AVC16T245 is required for 3.3V interoperability.
PI74FCT16245ATVEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74FCT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 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
PI74FCT16245ATVEX FAQ
1.How can I place an order for PI74FCT16245ATVEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI74FCT16245ATVEX 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 PI74FCT16245ATVEX reliable?
The price and inventory of PI74FCT16245ATVEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74FCT16245ATVEX is usually 5 days.
3.What payment methods are accepted for PI74FCT16245ATVEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74FCT16245ATVEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI74FCT16245ATVEX?
PI74FCT16245ATVEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI74FCT16245ATVEX 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 PI74FCT16245ATVEX?
For technical support, including PI74FCT16245ATVEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74FCT16245ATVEX requirements.
6.How does Aetrix verify that PI74FCT16245ATVEX is sourced from the original manufacturer or authorized distributors?
All PI74FCT16245ATVEX 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 PI74FCT16245ATVEX meets industry standards.
7.What is the process for return or replacement of PI74FCT16245ATVEX?
All PI74FCT16245ATVEX units undergo pre-shipment inspection (PSI). If there is an issue with PI74FCT16245ATVEX, 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 PI74FCT16245ATVEX part is unused and in its original packaging.
Return procedure for PI74FCT16245ATVEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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