My Inquiry
My Account
Diodes Incorporated PI74FCT16245TAEX
- Part No.:
- PI74FCT16245TAEX
- Manufacturer:
- Diodes Incorporated
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
PI74FCT16245TAEX.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,822
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PI74FCT16245TAEX from Pericom Semiconductor is a 16-bit bidirectional bus transceiver with independent 8-bit dual-port operation, ±32mA/64mA output drive, power-off disable for live insertion, and 48-pin TSSOP-A package. It enables asynchronous two-way data transfer between parallel buses in backplane and industrial control systems.
For engineers reviewing the PI74FCT16245TAEX datasheet, PI74FCT16245TAEX pinout, PI74FCT16245TAEX application, or PI74FCT16245TAEX equivalent, key selection criteria include direction-controlled bidirectional flow, high-current drive capability, ground-bounce suppression (<1.0V), and compatibility with 5V TTL/CMOS logic interfaces.
Technical Context
This device implements dual 8-bit or unified 16-bit bidirectional data routing via separate DIR and OE controls per port group. Its Fast CMOS architecture delivers propagation delays as low as 1.5ns (tPHL/tPLH) with 0.5ns output skew, supporting high-speed synchronous bus bridging.
The power-off disable feature ensures outputs enter high-impedance state when VCC = 0V (±100µA leakage), enabling hot-plug capability in modular backplane systems. Input hysteresis (100mV) and rail-to-rail input voltage tolerance (–0.5V to +7.0V) enhance noise immunity in electrically noisy environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5V ±10% - compatible with standard TTL logic rails and industrial 5V power domains |
| IOH/IOL Drive | –32mA / 64mA - drives heavy capacitive loads and long traces without external buffers |
| tPHL Propagation Delay | 1.5–7.0ns @ CL=50pF - supports >100MHz bus toggle rates in point-to-point configurations |
| VOLP Ground Bounce | <1.0V @ VCC=5V, TA=25°C - reduces signal integrity risk in dense PCB layouts |
| Input Hysteresis | 100mV - rejects high-frequency noise on control lines (DIR/OE) in noisy industrial settings |
| Power-Off Disable | IOFF ≤ ±100µA @ VCC=0V - enables safe live insertion into powered backplanes |
| Operating Temp | –40°C to +85°C - qualified for extended-temperature industrial and telecom equipment |
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 | Active-HIGH logic selects A→B (DIR=H) or B→A (DIR=L) data flow per 8-bit port |
| 1OE, 2OE | Output Enable Input | Active-LOW enables transceiver function; HIGH forces both A/B ports into Hi-Z |
| 1A0–1A7, 2A0–2A7 | Port A I/O Terminals | 8-bit bidirectional data interface for Bus A; internally 3-state controlled |
| 1B0–1B7, 2B0–2B7 | Port B I/O Terminals | 8-bit bidirectional data interface for Bus B; electrically isolated from Port A |
| VCC (Pins 7, 22, 35, 46) | Power Supply | Four dedicated VCC pins reduce IR drop and improve supply decoupling across wide bus |
| GND (Pins 4, 11, 26, 39) | Ground Reference | Four GND pins minimize ground bounce and support stable switching of all 16 drivers |
Key Features
| Feature | Design Value |
|---|---|
| Live-insertion support | Power-off disable (IOFF ≤ ±100µA) allows safe board insertion into active backplanes |
| High-noise immunity | 100mV input hysteresis prevents false triggering on DIR/OE control lines |
| Low ground bounce | VOLP < 1.0V ensures signal integrity during simultaneous 16-bit switching |
| Dual-port flexibility | Independent DIR/OE per 8-bit segment enables split-bus or full-bus operation |
| Rail-tolerant inputs | Inputs accept –0.5V to +7.0V - compatible with mixed-voltage system interfacing |
Applications
| Backplane Data Routing | Industrial PLC I/O Expansion |
|---|---|
|
Use Scenario: Bidirectional data exchange between CPU module and peripheral I/O cards in modular rack systems. IC Role / Device Role / Timing Role: Bus transceiver managing asynchronous 16-bit parallel communication between isolated voltage domains. Use Value: Power-off disable prevents bus contention during hot-swap; 64mA drive sustains signal integrity over 15cm backplane traces. |
Use Scenario: Extending local I/O capacity of programmable logic controllers via parallel expansion slots. IC Role / Device Role / Timing Role: Level-shifting and buffering interface between controller bus and field-device interface cards. Use Value: Input hysteresis rejects EMI from motor drives; dual 8-bit mode supports independent analog/digital I/O banks. |
| Test Equipment Bus Interface | Legacy System Interfacing |
|
Use Scenario: Connecting FPGA-based pattern generators to DUTs with legacy parallel test interfaces (e.g., IEEE 1149.1 boundary scan). IC Role / Device Role / Timing Role: High-speed bidirectional data bridge between modern digital logic and older 5V TTL test fixtures. Use Value: 1.5ns min propagation delay enables precise timing alignment; ±32mA drive meets TTL fanout requirements. |
Use Scenario: Integrating new microcontroller subsystems into aging instrumentation with 5V parallel bus architecture. IC Role / Device Role / Timing Role: Protocol-transparent bus translator preserving original timing and voltage levels. Use Value: Rail-to-rail input range (–0.5V to +7.0V) accommodates degraded signal edges from aging components. |
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 |
|---|---|---|---|
| SN74FCT16245ATPWR | Lower drive (–15mA/64mA), no power-off disable, same 48-TSSOP footprint | Lacks live-insertion capability; suitable only for fixed-installation systems | Select when cost sensitivity outweighs hot-swap requirement and ground bounce is less critical |
| 74ALVC16245PW | 3.3V-only supply (1.65–3.6V), ±24mA drive, no power-off disable, 48-TSSOP | Not 5V-tolerant; requires level-shifting for legacy 5V bus integration | Choose only for new 3.3V designs where lower power and smaller die size are prioritized |
Compared with SN74FCT16245ATPWR and 74ALVC16245PW, PI74FCT16245TAEX uniquely combines 5V operation, live-insertion support, and highest drive strength-making it the sole option for robust, hot-pluggable 5V backplane interfaces.
Availability
PI74FCT16245TAEX is available at Aetrix Electronics and suitable for backplane routing, industrial PLC expansion, and legacy system interfacing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PI74FCT16245TAEX 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, timing, and signal-integrity solutions for communications and computing infrastructure.
The PI74FCT16245T series belongs to Pericom's Fast CMOS bus interface product line, engineered specifically for noise-resilient, high-drive 5V bidirectional data transfer in modular backplane and industrial control systems.
FAQ
Is PI74FCT16245TAEX pin-compatible with PI74FCT162245TAEX?
No. While both are 48-pin TSSOP transceivers, PI74FCT16245TAEX provides asymmetric drive (–32mA/64mA) and power-off disable, whereas PI74FCT162245TAEX offers symmetric ±24mA drive and reduced ground bounce (<0.6V). Pin functions match, but electrical behavior differs significantly-direct substitution may cause timing or drive margin violations.
What is the maximum capacitive load this transceiver can drive reliably?
Based on characterized switching performance at CL = 50pF and RL = 500Ω, PI74FCT16245TAEX maintains guaranteed tPHL/tPLH ≤7.0ns. For reliable operation beyond datasheet conditions, total trace + stub + receiver capacitance should not exceed 75pF to preserve timing margins and limit VOLP rise under full 16-bit switching.
Does PI74FCT16245TAEX support mixed-voltage operation between Port A and Port B?
No. The device has a single VCC pin domain (5V ±10%). Both ports operate at the same supply voltage and share common logic thresholds (VIH = 2.0V, VIL = 0.8V). It does not provide level translation; external voltage translators are required for interfacing dissimilar voltage buses.
Can PI74FCT16245TAEX be used in automotive applications?
Not without qualification. Its operating temperature range (–40°C to +85°C) meets commercial/industrial grades but falls short of AEC-Q100 Grade 2 (–40°C to +105°C) or Grade 1 (–40°C to +125°C) requirements. No automotive-specific reliability testing or PPAP documentation is published for this part.
PI74FCT16245TAEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74FCT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm 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-TSSOP
PI74FCT16245TAEX FAQ
1.How can I place an order for PI74FCT16245TAEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI74FCT16245TAEX 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 PI74FCT16245TAEX reliable?
The price and inventory of PI74FCT16245TAEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74FCT16245TAEX is usually 5 days.
3.What payment methods are accepted for PI74FCT16245TAEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74FCT16245TAEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI74FCT16245TAEX?
PI74FCT16245TAEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI74FCT16245TAEX 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 PI74FCT16245TAEX?
For technical support, including PI74FCT16245TAEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74FCT16245TAEX requirements.
6.How does Aetrix verify that PI74FCT16245TAEX is sourced from the original manufacturer or authorized distributors?
All PI74FCT16245TAEX 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 PI74FCT16245TAEX meets industry standards.
7.What is the process for return or replacement of PI74FCT16245TAEX?
All PI74FCT16245TAEX units undergo pre-shipment inspection (PSI). If there is an issue with PI74FCT16245TAEX, 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 PI74FCT16245TAEX part is unused and in its original packaging.
Return procedure for PI74FCT16245TAEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PI74FCT16245TAEX Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
