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Diodes Incorporated PI74FCT16245CTVE
- Part No.:
- PI74FCT16245CTVE
- Manufacturer:
- Diodes Incorporated
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
PI74FCT16245CTVE.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,951
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Product details
Overview
PI74FCT16245CTVE from Pericom Semiconductor is a 16-bit bidirectional bus transceiver with independent 8-bit operation capability, ±32mA/64mA high-current drive (IOH/IOL), 4.1ns max propagation delay at 5V, and power-off disable for live insertion in backplane applications. It operates across –40°C to +85°C with 5V ±10% supply and supports asynchronous two-way data flow between parallel buses in industrial control and telecom interface systems.
For engineers reviewing the PI74FCT16245CTVE datasheet, PI74FCT16245CTVE pinout, PI74FCT16245CTVE application, or PI74FCT16245CTVE equivalent, key selection criteria include direction-controlled bidirectional buffering, Hi-Z output enable timing (5.8ns max), ground bounce performance (<1.0V), and compatibility with 48-pin SSOP (V) packaging for high-density PCB layouts.
Technical Context
This device implements dual 8-bit or unified 16-bit bidirectional data transfer using separate DIR and OE controls per side pair, enabling flexible bus isolation and flow arbitration without external logic. Its Fast CMOS process delivers TTL-compatible input thresholds (VIH = 2.0V, VIL = 0.8V) with hysteresis for noise immunity on shared bus lines.
The output stage integrates power-off disable functionality, ensuring outputs enter high-impedance state when VCC = 0V (±100µA leakage), and features controlled edge rates via internal current limiting-reducing ground bounce (VOLP < 1.0V) and eliminating need for external termination in most 5V parallel interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5V ±10% - ensures compatibility with standard 5V TTL/CMOS logic domains and legacy backplane power rails |
| Propagation Delay | 1.5–4.1ns (max) - enables reliable 240+ MHz bus operation with tight timing margins in synchronous systems |
| Output Drive | IOH = –32mA, IOL = 64mA - drives heavy capacitive loads (e.g., 10+ TTL inputs or long traces) without signal degradation |
| Ground Bounce | VOLP < 1.0V @ 5V/25°C - minimizes switching noise-induced logic errors during simultaneous output transitions |
| Operating Temp | –40°C to +85°C - supports deployment in industrial automation, base station, and network equipment environments |
| Input Hysteresis | 100mV - rejects noise on direction and enable control lines in electrically noisy backplane or chassis settings |
| Power-Off Disable | ±100µA leakage @ VCC = 0V - permits hot-swap board insertion without disrupting powered system bus integrity |
Pinout & Package
PI74FCT16245CTVE uses a 48-pin 300-mil wide plastic SSOP (Package Code V), with 0.635mm lead pitch and 7.39–7.59mm body width. Pin numbering follows standard SSOP convention with GND/VCC distributed across both sides for low-inductance power delivery.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction Control Input | Determines data flow direction per 8-bit port pair (A→B or B→A); active-HIGH logic |
| 1OE, 2OE | Output Enable Input | Active-LOW control placing corresponding A/B ports into Hi-Z state for bus sharing |
| 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 states |
| 1B0–1B7, 2B0–2B7 | Port B I/O Terminals | Side-B bidirectional data lines; mirror A-side behavior with independent DIR/OE control |
| GND (Pins 4,9,15,20,26,31,37,42) | Ground Reference | Eight dedicated ground pins minimize ground bounce and improve signal integrity across full 16-bit width |
| VCC (Pins 7,12,18,23,29,34,40,45) | Power Supply | Eight VCC pins provide low-impedance decoupling paths and reduce supply rail noise during fast switching |
Key Features
| Feature | Design Value |
|---|---|
| Live-insertion support | Power-off disable ensures Hi-Z outputs at VCC = 0V, enabling safe hot-plug into powered backplanes |
| Low ground bounce | VOLP < 1.0V at 5V/25°C allows dense 16-bit bus routing without signal integrity compromise |
| Flexible port configuration | Two independent 8-bit transceivers or one unified 16-bit unit via DIR/OE pin pairing |
| TTL-compatible inputs | Hysteresis (100mV) and VIH/VIL thresholds (2.0V/0.8V) ensure robust interfacing with legacy 5V logic families |
| Pb-free & Green packaging | SSOP (V) package meets RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 3 |
Applications
| Industrial PLC Backplane Interface | Telecom Line Card Data Bus |
|---|---|
Use Scenario: Interfacing CPU modules with I/O expansion cards across a 5V parallel backplane in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional bus transceiver managing data flow between processor and peripheral cards under real-time OS control. Use Value: 4.1ns max propagation delay and 64mA sink current maintain timing closure across 20cm backplane traces while driving multiple slots. | Use Scenario: Isolating and translating data between DSP and FPGA on a modular telecom line card with shared memory bus. IC Role / Device Role / Timing Role: Direction-controlled buffer enabling time-multiplexed access to dual-port SRAM without bus contention. Use Value: Independent 1OE/2OE control allows dynamic partitioning of 16-bit bus into two 8-bit segments for concurrent read/write operations. |
| Automated Test Equipment (ATE) Fixture | Legacy Instrumentation Bus Bridge |
Use Scenario: Connecting test head controller to DUT interface boards requiring precise 5V logic level translation and bus direction switching. IC Role / Device Role / Timing Role: High-speed bidirectional transceiver synchronizing pattern generator and response capture signals across fixture cabling. Use Value: Power-off disable prevents backfeeding during hot-swap of DUT boards, protecting controller-side logic from latch-up. | Use Scenario: Bridging GPIB or IEEE-488 bus signals to modern microcontroller-based instrumentation subsystems. IC Role / Device Role / Timing Role: Level-shifting and bus-driving interface converting legacy 5V open-collector signaling to push-pull CMOS logic levels. Use Value: ±32mA/64mA drive strength overcomes high capacitance of long GPIB cables while maintaining clean edges at 1MHz+ data rates. |
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 |
|---|---|---|---|
| SN74FCT16245CTPV | Same pinout and DC specs; propagation delay 4.6ns (max), VOLP < 0.8V, no power-off disable | Lacks live-insertion capability; requires external power sequencing for hot-swap systems | Select when lower cost is prioritized and board insertion occurs only during system power-down |
| 74LVC16245APAG | 3.3V-only operation (1.65–3.6V), 32mA drive, 5.2ns max tPHL, no hysteresis on inputs | Not compatible with 5V bus domains; requires level-shifting for mixed-voltage systems | Select for new 3.3V designs where power efficiency and smaller TSSOP-48 package are critical |
Compared with SN74FCT16245CTPV and 74LVC16245APAG, PI74FCT16245CTVE uniquely combines 5V operation, live-insertion support, and lowest ground bounce in its class-making it optimal for industrial backplanes requiring field-replaceable modules and noise-sensitive analog-digital hybrid systems.
Availability
PI74FCT16245CTVE is available at Aetrix Electronics and suitable for industrial PLC backplane interfaces, telecom line card data buses, automated test equipment fixtures, and legacy instrumentation bus bridges requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PI74FCT16245CTVE 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 products target data-intensive infrastructure applications with emphasis on signal fidelity and reliability.
The PI74FCT16245 series belongs to Pericom's Fast CMOS bus interface family, engineered specifically for noise-resilient, high-drive 5V parallel bus bridging in telecom, industrial, and test equipment where live insertion and ground bounce control are critical design requirements.
FAQ
What is the maximum clock frequency supported by PI74FCT16245CTVE in a 16-bit data path?
PI74FCT16245CTVE does not contain internal clock circuitry and is not a clocked device; it supports asynchronous data transfer. Its 4.1ns maximum propagation delay enables reliable operation with data valid windows down to ~240MHz in tightly constrained synchronous bus systems, assuming proper setup/hold timing from external controllers.
Can PI74FCT16245CTVE be used in mixed-voltage systems with 3.3V logic?
No-PI74FCT16245CTVE is specified only for 5V ±10% operation (4.5V–5.5V). Its inputs are TTL-compatible (VIH = 2.0V min) but lack 3.3V-safe clamping; applying 3.3V logic directly to outputs may cause excessive ICC current due to partial turn-on of internal FETs, risking reliability degradation over time.
How does the power-off disable feature behave when VCC drops below 0.5V?
When VCC falls below 0.5V, the internal output drivers enter high-impedance state with leakage current limited to ±100µA per pin, verified across –40°C to +85°C. This behavior is guaranteed by design and tested per JEDEC JESD78, preventing backfeeding and bus contention during hot-swap events.
Are the 1DIR/2DIR and 1OE/2OE pins internally tied or independently controllable?
All four control pins-1DIR, 2DIR, 1OE, and 2OE-are fully independent. Each pair (1DIR/1OE and 2DIR/2OE) governs one 8-bit segment (1A/1B or 2A/2B), allowing asymmetric configurations such as A→B on Port 1 while B→A on Port 2, or disabling only one side while keeping the other active.
PI74FCT16245CTVE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74FCT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm 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:
- 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
PI74FCT16245CTVE FAQ
1.How can I place an order for PI74FCT16245CTVE through Aetrix?
Please submit a Request for Quotation (RFQ) for PI74FCT16245CTVE 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 PI74FCT16245CTVE reliable?
The price and inventory of PI74FCT16245CTVE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI74FCT16245CTVE is usually 5 days.
3.What payment methods are accepted for PI74FCT16245CTVE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI74FCT16245CTVE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI74FCT16245CTVE?
PI74FCT16245CTVE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI74FCT16245CTVE 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 PI74FCT16245CTVE?
For technical support, including PI74FCT16245CTVE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI74FCT16245CTVE requirements.
6.How does Aetrix verify that PI74FCT16245CTVE is sourced from the original manufacturer or authorized distributors?
All PI74FCT16245CTVE 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 PI74FCT16245CTVE meets industry standards.
7.What is the process for return or replacement of PI74FCT16245CTVE?
All PI74FCT16245CTVE units undergo pre-shipment inspection (PSI). If there is an issue with PI74FCT16245CTVE, 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 PI74FCT16245CTVE part is unused and in its original packaging.
Return procedure for PI74FCT16245CTVE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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