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Renesas 74FCT16245ETPVG8
- Part No.:
- 74FCT16245ETPVG8
- Manufacturer:
- Renesas
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74FCT16245ETPVG8.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,589
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Product details
Overview
74FCT16245ETPVG8 from Renesas Electronics (formerly IDT) is a FAST CMOS 16-bit bidirectional transceiver with dual 8-bit or unified 16-bit operation, ±32mA/64mA drive capability, <3.2ns propagation delay (tPLH/tPHL), and industrial temperature range (–40°C to +85°C). It enables synchronous bus-to-bus communication in backplane and high-capacitance load applications.
For engineers reviewing the 74FCT16245ETPVG8 datasheet, 74FCT16245ETPVG8 pinout, 74FCT16245ETPVG8 application, or 74FCT16245ETPVG8 equivalent, key selection criteria include output skew (<0.5ns), power-off disable for live insertion, hysteresis-enhanced noise margin, and TSSOP-48 green package compliance.
Technical Context
The 74FCT16245ETPVG8 implements two independent direction-controlled 8-bit transceivers (1A↔1B and 2A↔2B) via dedicated xDIR/xOE inputs per side. Its dual-metal CMOS process delivers TTL-compatible input thresholds (VIH = 2.0V min, VIL = 0.8V max) and rail-to-rail output swing under 5.0V ±10% supply.
Output buffers feature active power-off disable (IOFF ≤ ±1μA at VCC = 0V), enabling hot-swap capability. Propagation delay asymmetry is minimized by design: tSK(o) < 0.5ns across all outputs switching in the same direction, critical for timing-critical parallel bus interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5.0V ±10% - supports standard TTL/CMOS logic level compatibility |
| tPLH / tPHL | ≤3.2ns @ CL=50pF - ensures sub-4ns data path latency for 300+ MHz bus timing |
| IOH / IOL | –32mA / +64mA - drives heavy loads including unterminated backplanes and multi-drop buses |
| tSK(o) | <0.5ns - guarantees tight output alignment for parallel data capture without skew-induced setup violations |
| VIH / VIL | 2.0V min / 0.8V max - provides robust noise immunity with 100mV hysteresis on all inputs |
| Power-off Leakage | ±1μA @ VCC=0V - enables safe live insertion without bus contention or damage |
| Operating Temp | –40°C to +85°C - qualified for industrial control, telecom infrastructure, and embedded computing |
Pinout & Package
74FCT16245ETPVG8 is housed in a 48-pin Thin Shrink Small Outline Package (TSSOP), lead-free and RoHS-compliant (Green designation "PVG"). The package features 0.5mm pitch, exposed thermal pad (not electrically connected), and JEDEC MO-153AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction Control Inputs | Active-HIGH control: HIGH = A→B flow; LOW = B→A flow per 8-bit section |
| 1OE, 2OE | Output Enable Inputs | Active-LOW: LOW enables transceiver; HIGH forces both ports into high-Z state |
| 1A1–1A8, 2A1–2A8 | Side-A I/O Terminals | Bidirectional data lines for Bus A; internally 3-state with hysteresis |
| 1B1–1B8, 2B1–2B8 | Side-B I/O Terminals | Bidirectional data lines for Bus B; identical electrical specs to Side-A |
| VCC (Pins 10, 20, 30, 40) | Power Supply | Four distributed VCC pins reduce IR drop and improve noise rejection across wide bus |
| GND (Pins 9, 19, 29, 39, 48) | Ground | Five GND pins provide low-inductance return paths for high-speed switching currents |
Key Features
| Feature | Design Value |
|---|---|
| Live-insertion support | Power-off disable (IOFF ≤ ±1μA) prevents backdrive and bus contention during board hot-swap |
| High-noise-margin inputs | Hysteresis ≥100mV eliminates false triggering from EMI or ground bounce on shared control lines |
| Low-output skew | tSK(o) < 0.5ns ensures simultaneous valid data arrival across all 16 bits for reliable latch capture |
| Backplane-optimized drive | 64mA sink current sustains signal integrity driving >50pF/cm trace capacitance on long parallel runs |
| Industrial temp qualification | Full functionality verified from –40°C to +85°C with no derating required for timing or drive strength |
Applications
| Industrial Backplane Interface | Telecom Line Card Data Bridge |
|---|---|
Use Scenario: Interfacing CPU module and I/O expansion modules across a 12-inch PCB backplane with 30+ pF/inch trace capacitance. IC Role / Device Role / Timing Role: Bidirectional data transceiver buffering address/data bus between isolated voltage domains; direction controlled by FPGA GPIO. Use Value: 64mA drive maintains >0.8V noise margin at 100MHz toggle rate; power-off disable prevents corruption during field-replaceable module insertion. | Use Scenario: Synchronizing control/status registers between baseband processor and RF front-end ASIC on a dense line card. IC Role / Device Role / Timing Role: 16-bit register-to-register data shuttle with cycle-accurate direction switching synchronized to clock enable. Use Value: <3.2ns propagation delay enables full-speed operation at 250MHz bus clock; <0.5ns skew avoids bit misalignment in parallel status reads. |
| Automated Test Equipment (ATE) Fixture | Programmable Logic Carrier Board |
Use Scenario: Driving DUT interface pins from pattern generator while capturing responses via same pins using time-multiplexed mode. IC Role / Device Role / Timing Role: Reconfigurable bidirectional I/O buffer with independent 8-bit sections for stimulus/response separation. Use Value: Dual xDIR/xOE controls allow independent gating of stimulus and capture paths; hysteresis rejects fixture crosstalk noise up to 150mV peak. | Use Scenario: Extending I/O count from FPGA bank to peripheral connectors on a carrier board supporting multiple mezzanine modules. IC Role / Device Role / Timing Role: Level-shifting and fanout buffer for 3.3V FPGA I/O driving 5V-tolerant peripherals. Use Value: 5V supply allows direct connection to legacy 5V peripherals; ±32mA/64mA drive supports 10+ loads per bus segment without external buffers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74FCT16245ATPVG | Slower tPLH/tPHL (max 4.1ns vs 3.2ns); same pinout, package, and drive strength | Suitable where 250MHz bus timing margin permits longer propagation delay | Select when lower cost is prioritized over maximum speed; identical layout and firmware integration |
| 74LVCH16245APAG | 3.3V-only supply (1.65–3.6V); LVCMOS levels; lower drive (±24mA); different pinout | Requires level translation for 5V systems; not drop-in compatible with 74FCT16245ETPVG8 | Choose only for new 3.3V designs needing lower power; redesign required for voltage and pin mapping |
Compared with SN74FCT16245ATPVG and 74LVCH16245APAG, the 74FCT16245ETPVG8 delivers the fastest propagation delay in the FCT family while maintaining full 5V compatibility, live-insertion safety, and industrial temperature resilience-making it optimal for timing-critical, mixed-voltage backplane systems.
Availability
74FCT16245ETPVG8 is available at Aetrix Electronics and suitable for industrial backplane interfaces, telecom line card bridging, automated test equipment fixtures, and programmable logic carrier boards requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74FCT16245ETPVG8 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
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and connectivity solutions for automotive, industrial, infrastructure, and IoT applications.
The 74FCT16245ETPVG8 belongs to Renesas' legacy IDT logic portfolio-designed specifically for high-speed, noise-immune, hot-pluggable bus interfacing in mission-critical industrial and telecom systems.
FAQ
What is the maximum operating frequency supported by the 74FCT16245ETPVG8?
The 74FCT16245ETPVG8 does not specify a maximum clock frequency directly, but its propagation delay (tPLH/tPHL ≤ 3.2ns) and output skew (<0.5ns) enable reliable operation on buses toggling up to 250–300MHz, assuming proper PCB layout, termination, and load capacitance ≤50pF. System-level timing must account for board trace delays and setup/hold margins at the receiving device.
Does the 74FCT16245ETPVG8 support mixed-voltage operation between 3.3V and 5V domains?
No-the 74FCT16245ETPVG8 operates exclusively from a 5.0V ±10% supply and features TTL-compatible input thresholds (VIH ≥ 2.0V, VIL ≤ 0.8V). While it can interface with 3.3V logic outputs (if VOH ≥ 2.0V), it cannot be powered from 3.3V nor safely drive 3.3V-only inputs without level translation due to its 5V output swing.
How does the power-off disable feature of the 74FCT16245ETPVG8 work during live insertion?
When VCC drops to 0V, the 74FCT16245ETPVG8's IOFF leakage remains ≤ ±1μA on all I/O pins, placing them in a high-impedance, non-driving state. This prevents backfeeding, bus contention, or latch-up when the device is inserted into a powered backplane-enabling true "live insertion" without disrupting system operation or damaging connected components.
Can the 74FCT16245ETPVG8 be used as two independent 8-bit transceivers?
Yes-the 74FCT16245ETPVG8 integrates two fully independent 8-bit transceiver sections (1A↔1B and 2A↔2B), each with dedicated direction (1DIR/2DIR) and output enable (1OE/2OE) controls. This allows simultaneous bidirectional data transfer across separate bus segments-for example, CPU-to-peripheral and DMA-to-memory paths-without internal coupling or timing interaction.
What is the significance of hysteresis on the 74FCT16245ETPVG8 inputs?
The 74FCT16245ETPVG8 incorporates ≥100mV input hysteresis on all control and data pins, raising the effective VIH threshold when transitioning from LOW to HIGH and lowering the effective VIL threshold when transitioning from HIGH to LOW. This suppresses chatter caused by slow edges or noise on shared control lines (e.g., xOE/xDIR bused across multiple devices), ensuring glitch-free direction and enable state transitions.
74FCT16245ETPVG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- 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
74FCT16245ETPVG8 FAQ
1.How can I place an order for 74FCT16245ETPVG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT16245ETPVG8 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 74FCT16245ETPVG8 reliable?
The price and inventory of 74FCT16245ETPVG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT16245ETPVG8 is usually 5 days.
3.What payment methods are accepted for 74FCT16245ETPVG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74FCT16245ETPVG8 transactions.
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4.How is shipping managed for 74FCT16245ETPVG8?
74FCT16245ETPVG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT16245ETPVG8 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 74FCT16245ETPVG8?
For technical support, including 74FCT16245ETPVG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT16245ETPVG8 requirements.
6.How does Aetrix verify that 74FCT16245ETPVG8 is sourced from the original manufacturer or authorized distributors?
All 74FCT16245ETPVG8 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 74FCT16245ETPVG8 meets industry standards.
7.What is the process for return or replacement of 74FCT16245ETPVG8?
All 74FCT16245ETPVG8 units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT16245ETPVG8, 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 74FCT16245ETPVG8 part is unused and in its original packaging.
Return procedure for 74FCT16245ETPVG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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