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Diodes Incorporated PI74FCT16245TVEX
- Part No.:
- PI74FCT16245TVEX
- Manufacturer:
- Diodes Incorporated
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
PI74FCT16245TVEX.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,478
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Product details
Overview
PI74FCT16245TVEX from Pericom Semiconductor is a 16-bit bidirectional CMOS transceiver in 48-pin SSOP (V) package, operating at 5V ±10%, with ±32mA/64mA high-current drive, power-off disable for live insertion, and <1.0V typical ground bounce. It enables asynchronous two-way data bus communication in backplane and board-level interconnect applications.
For engineers reviewing the PI74FCT16245TVEX datasheet, PI74FCT16245TVEX pinout, PI74FCT16245TVEX application, or PI74FCT16245TVEX equivalent, key selection criteria include direction-controlled bidirectional flow, Hi-Z output enable, live-insertion capability, and low-noise switching performance under 5V TTL-compatible logic conditions.
Technical Context
This device implements dual 8-bit or unified 16-bit bidirectional data transfer using separate DIR and OE controls per side pair. Its fast CMOS architecture delivers propagation delays as low as 1.5ns (min) and output skew ≤0.5ns across all 16 bits under 50pF load.
The power-off disable feature ensures outputs enter Hi-Z when VCC = 0V, enabling hot-plug compatibility. Input hysteresis (>100mV) improves noise immunity, while balanced drive strength and controlled edge rates reduce ground bounce and undershoot without external termination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5.0V ±10% - compatible with standard TTL/CMOS bus systems and industrial 5V rails |
| IOH / IOL Drive | –32mA / 64mA - supports driving heavy capacitive loads and multiple TTL inputs directly |
| tPHL Propagation Delay | 1.5–7.0ns - enables high-speed bus bridging up to ~140MHz effective data rate |
| VOLP Ground Bounce | <1.0V typical at 5V/25°C - minimizes signal integrity risk in dense PCB layouts |
| Input Hysteresis | 100mV - rejects noise on control lines (DIR, OE) in electrically noisy environments |
| Power-Off Disable | ±100µA IOFF at VCC = 0V - guarantees safe live insertion into powered backplanes |
| Operating Temp | –40°C to +85°C - qualified for industrial temperature range operation |
Pinout & Package
Package: 48-pin plastic SSOP (300-mil wide), RoHS-compliant, JEDEC MO-153 compliant, body dimensions 15.75 × 7.59 mm, 0.635 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction Control Input | Determines data flow direction per 8-bit side (A→B or B→A); active-HIGH logic |
| 1OE, 2OE | Output Enable Input | Active-LOW control enabling/disabling both A and B ports simultaneously into Hi-Z |
| 1A0–1A7, 2A0–2A7 | Side A I/O Terminals | 8-bit bidirectional port A; function as inputs or 3-state outputs depending on DIR/OE |
| 1B0–1B7, 2B0–2B7 | Side B I/O Terminals | 8-bit bidirectional port B; mirrored functionality to Side A with independent DIR/OE |
| VCC (Pins 7, 22, 35, 44) | Power Supply | Four distributed VCC pins reduce supply impedance and improve decoupling effectiveness |
| GND (Pins 4, 11, 26, 39) | Ground Reference | Four dedicated GND pins minimize ground bounce and support clean return paths |
Key Features
| Feature | Design Value |
|---|---|
| Live-insertion support | Power-off disable (IOFF ≤ ±100µA) prevents backfeeding and allows safe hot-swap in backplane systems |
| Low ground bounce | Typical VOLP < 1.0V at 5V/25°C reduces signal corruption and EMI in multi-load bus environments |
| Configurable granularity | Two independent 8-bit transceivers or one unified 16-bit path via separate DIR/OE controls per side |
| TTL-compatible interface | VIH = 2.0V min, VIL = 0.8V max, hysteresis ≥100mV - robust interoperability with legacy 5V logic families |
| Thermal reliability | Rated for –40°C to +85°C ambient and storage up to +150°C - suitable for industrial and telecom chassis |
Applications
| Backplane Interconnect | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Bidirectional data routing between CPU card and peripheral expansion cards in modular rack systems. IC Role / Device Role / Timing Role: Bus transceiver managing asynchronous 16-bit parallel data transfers between isolated voltage domains. Use Value: Live-insertion capability eliminates system downtime during field-replaceable unit (FRU) swaps. |
Use Scenario: Isolating and level-shifting digital I/O signals between microcontroller and ruggedized sensor/actuator interfaces. IC Role / Device Role / Timing Role: Direction-controlled buffer ensuring deterministic timing and noise-immune signal handoff. Use Value: High-current drive (64mA sink) directly drives LED indicators and relay drivers without external buffers. |
| Legacy System Bus Extension | Test Equipment Data Capture |
|
Use Scenario: Extending ISA or VMEbus segments across daughterboards with minimal added latency. IC Role / Device Role / Timing Role: Low-skew (≤0.5ns) transceiver preserving setup/hold timing margins across extended trace lengths. Use Value: Propagation delay of 1.5–7.0ns supports reliable operation at >100MHz effective bus clock rates. |
Use Scenario: Capturing parallel digital waveforms from DUTs in automated test equipment (ATE) with synchronized sampling. IC Role / Device Role / Timing Role: High-fidelity bus interface maintaining signal integrity during high-frequency toggling (e.g., 10MHz toggle test). Use Value: Dynamic supply current of only 2.5mA at 10MHz (16-bit toggle) limits thermal load in densely packed test fixtures. |
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 |
|---|---|---|---|
| 74FCT16245CTPV | Same pinout and function but rated for commercial temp (0°C to +70°C); no power-off disable (IOFF not specified) | Limited to non-industrial environments; unsuitable for live-insertion or extended temperature deployments | Select only for cost-sensitive, non-ruggedized applications where thermal margin and hot-swap are not required |
| SN74ALVC164245DGGR | 3.3V-only operation (1.65–3.6V), lower drive (±24mA), no power-off disable, different pin mapping | Requires level translation for 5V systems; incompatible with existing 5V backplane designs without redesign | Choose only when migrating to 3.3V infrastructure and redesigning PCB layout and power delivery |
Compared with 74FCT16245CTPV and SN74ALVC164245DGGR, PI74FCT16245TVEX uniquely combines industrial temperature rating, live-insertion safety, and native 5V TTL compatibility-making it irreplaceable in legacy backplane upgrades and field-serviceable embedded systems.
Availability
PI74FCT16245TVEX is available at Aetrix Electronics and suitable for backplane interconnect, industrial PLC I/O modules, and legacy bus extension requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for PI74FCT16245TVEX 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 and signal integrity solutions, acquired by Diodes Incorporated in 2016; its FCT logic portfolio remains widely deployed in industrial and telecom infrastructure.
This device belongs to the PI74FCT fast CMOS logic family, engineered specifically for low-noise, high-drive 5V bus interfacing in mission-critical backplane and modular system architectures.
FAQ
Is PI74FCT16245TVEX pin-compatible with PI74FCT16245TA?
Yes - both share identical 48-pin functional pinout and electrical behavior. The "V" suffix denotes SSOP (300-mil) package, while "A" indicates TSSOP (240-mil); mechanical footprint differs, but logic mapping and signal roles are fully interchangeable.
Does PI74FCT16245TVEX support hot-swap in powered backplanes?
Yes - its power-off disable feature guarantees IOFF ≤ ±100µA when VCC = 0V, preventing backfeeding and latch-up during live insertion. This is validated per datasheet Section 3 (DC Electrical Characteristics) and confirmed in application note PS2032G.
What is the maximum capacitive load this transceiver can drive reliably?
It is characterized for CL = 50pF per output (per switching characteristics table), with guaranteed tPHL/tPLH performance up to that load. Driving >50pF may increase propagation delay and ground bounce; use series termination or reduce trace length for heavier loads.
Can PI74FCT16245TVEX operate at 3.3V supply?
No - absolute maximum VCC is +7.0V, but the device is specified only for 5.0V ±10% operation. At 3.3V, VIH/VIL thresholds and output drive fall outside guaranteed specifications; undervoltage operation risks logic failure and undefined state transitions.
PI74FCT16245TVEX 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
PI74FCT16245TVEX FAQ
1.How can I place an order for PI74FCT16245TVEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI74FCT16245TVEX 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 PI74FCT16245TVEX reliable?
The price and inventory of PI74FCT16245TVEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74FCT16245TVEX is usually 5 days.
3.What payment methods are accepted for PI74FCT16245TVEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74FCT16245TVEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI74FCT16245TVEX?
PI74FCT16245TVEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI74FCT16245TVEX 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 PI74FCT16245TVEX?
For technical support, including PI74FCT16245TVEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74FCT16245TVEX requirements.
6.How does Aetrix verify that PI74FCT16245TVEX is sourced from the original manufacturer or authorized distributors?
All PI74FCT16245TVEX 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 PI74FCT16245TVEX meets industry standards.
7.What is the process for return or replacement of PI74FCT16245TVEX?
All PI74FCT16245TVEX units undergo pre-shipment inspection (PSI). If there is an issue with PI74FCT16245TVEX, 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 PI74FCT16245TVEX part is unused and in its original packaging.
Return procedure for PI74FCT16245TVEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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