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Renesas 74FCT16245ETPAG8
- Part No.:
- 74FCT16245ETPAG8
- Manufacturer:
- Renesas
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74FCT16245ETPAG8.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,850
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Product details
Overview
74FCT16245ETPAG8 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 strength, 3.2ns max propagation delay (industrial grade), and power-off disable for live insertion. It interfaces between two busses (A and B) in high-speed synchronous systems such as backplane drivers and memory expansion modules.
For engineers reviewing the 74FCT16245ETPAG8 datasheet, 74FCT16245ETPAG8 pinout, 74FCT16245ETPAG8 application, or 74FCT16245ETPAG8 equivalent, key selection criteria include direction/output enable control logic, 5V supply compatibility, industrial temperature range (–40°C to +85°C), TSSOP-48 package footprint, and high-drive capability for low-impedance bus loading.
Technical Context
The 74FCT16245ETPAG8 implements dual independent 8-bit transceivers or one 16-bit transceiver via dedicated xDIR and xOE control pins per side. Direction control determines data flow (A→B or B→A), while active-low xOE forces both ports into high-impedance state regardless of xDIR state.
All inputs feature hysteresis for noise immunity; outputs support power-off disable to prevent backfeeding during hot-swap. Built on 0.5µm CMOS, it delivers TTL-compatible input thresholds (VIH = 2.0V min, VIL = 0.8V max) and rail-to-rail output swing under load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5.0V ±10% - fixed single-supply operation; no dual-rail or voltage translation capability |
| Propagation Delay | 3.2ns max (tPLH/tPHL, CL = 50pF) - enables >300MHz bus timing margin in synchronous designs |
| Output Drive | –32mA IOH / +64mA IOL - drives heavy capacitive loads (e.g., backplanes, multi-drop buses) |
| Input Hysteresis | 100mV typical - improves noise immunity on noisy industrial bus lines |
| Power-off Disable | IOFF ≤ ±1μA at VCC = 0V - permits safe live insertion without damaging adjacent circuitry |
| Operating Temp | –40°C to +85°C - qualified for industrial environments without derating |
| Output Skew | <0.5ns (tSK(o)) - ensures simultaneous switching across all 16 bits for timing-critical applications |
Pinout & Package
TSSOP-48 (Thin Shrink Small Outline Package, Green, RoHS-compliant) with 0.5mm pitch; 12.0mm × 6.1mm body size; exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction Control Inputs (Active HIGH) | Set data flow direction per 8-bit group: HIGH = A→B, LOW = B→A |
| 1OE, 2OE | Output Enable Inputs (Active LOW) | Disable both A/B ports simultaneously into high-Z when asserted |
| 1A1–1A8, 2A1–2A8 | Side-A I/O Terminals | Bi-directional data interface for Bus A; internally 3-state controlled |
| 1B1–1B8, 2B1–2B8 | Side-B I/O Terminals | Bi-directional data interface for Bus B; directionally gated by xDIR |
| VCC (Pins 11, 24, 37, 48) | Power Supply | Single 5V supply connection; four pins reduce IR drop and improve decoupling |
| GND (Pins 10, 23, 36, 47) | Ground Reference | Four ground pins minimize ground bounce and ensure signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| High-Drive Outputs | –32mA source / +64mA sink capability supports direct driving of 50Ω transmission lines and multi-load backplanes |
| Live Insertion Support | Power-off disable (IOFF ≤ ±1μA) prevents backpowering and latch-up during hot-swap board replacement |
| Noise Immunity | Hysteresis (100mV) on all inputs rejects EMI and ground bounce in electrically noisy industrial enclosures |
| Low Propagation Skew | <0.5ns output skew guarantees deterministic timing alignment across all 16 data bits |
| Industrial Temperature Range | –40°C to +85°C operation without performance degradation or derating required |
Applications
| Backplane Data Routing | Memory Expansion Interface |
|---|---|
Use Scenario: Interfacing CPU bus to peripheral expansion slots in ruggedized industrial controllers. IC Role / Device Role / Timing Role: Bidirectional level-shifting transceiver enabling synchronous data transfer between isolated bus domains. Use Value: 3.2ns max propagation delay and <0.5ns skew maintain setup/hold timing margins across 16-bit parallel paths at 100+ MHz clock rates. | Use Scenario: Connecting microcontroller address/data bus to external SRAM or Flash memory banks. IC Role / Device Role / Timing Role: Bus buffer isolating memory subsystem from processor core; directionally controlled by MEMR/MEMW signals. Use Value: ±32mA/64mA drive strength ensures reliable signal integrity over 10cm PCB traces loaded with multiple memory devices. |
| Industrial PLC I/O Module | Digital Signal Acquisition Hub |
Use Scenario: Isolating field-side digital I/O signals from controller-side logic in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional data conduit between opto-isolated input/output banks and main CPU bus. Use Value: Input hysteresis (100mV) suppresses contact bounce and EMI from relay coils and motor drives. | Use Scenario: Aggregating parallel sensor outputs (e.g., ADCs, encoders) into a centralized FPGA or DSP data path. IC Role / Device Role / Timing Role: Synchronized data concentrator managing time-aligned sampling across multiple analog front-ends. Use Value: Power-off disable allows modular sensor card replacement without powering down the entire acquisition system. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74FCT16245ATPAG | Slower max propagation delay (4.1ns vs. 3.2ns); same 5V supply, TSSOP-48, and industrial temp range | Suitable where timing margin ≥4ns is acceptable; identical pinout and control logic | Select when lower cost is prioritized over maximum speed in non-critical timing paths |
| 74LVCH16245APAG | 3.3V-only supply (1.65–3.6V); higher input threshold (VIH = 2.0V min); lower drive (–24mA/+24mA) | Requires level-shifting for 5V systems; optimized for low-voltage mixed-signal boards | Choose only for new 3.3V designs; not a drop-in replacement for 5V legacy systems |
Compared with SN74FCT16245ATPAG and 74LVCH16245APAG, the 74FCT16245ETPAG8 provides the fastest propagation (3.2ns), highest drive strength (+64mA), and native 5V compatibility-making it optimal for timing-critical industrial backplane and memory interface applications where legacy voltage levels and speed are mandatory.
Availability
74FCT16245ETPAG8 is available at Aetrix Electronics and suitable for industrial PLCs, memory expansion modules, and backplane routing systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for 74FCT16245ETPAG8 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, and IoT applications.
The 74FCT16245ETPAG8 belongs to Renesas' legacy IDT FAST CMOS logic family, designed specifically for high-speed, low-power bidirectional bus interfacing in industrial and military-grade systems operating at 5V.
FAQ
What is the operating voltage range for the 74FCT16245ETPAG8?
The 74FCT16245ETPAG8 operates exclusively at VCC = 5.0V ±10% (4.5V to 5.5V). It is not compatible with 3.3V or mixed-voltage systems without external level-shifting circuitry. This fixed 5V requirement aligns with legacy TTL/CMOS bus standards and ensures consistent drive strength and timing performance across its industrial temperature range.
Does the 74FCT16245ETPAG8 support live insertion in backplane applications?
Yes, the 74FCT16245ETPAG8 supports live insertion due to its power-off disable feature: when VCC = 0V, input/output leakage current is limited to ±1μA (max), preventing backfeeding or latch-up during hot-swap events. This capability is explicitly validated in the datasheet's DC electrical characteristics and is critical for modular industrial backplane systems requiring field-replaceable cards.
How many independent transceiver groups does the 74FCT16245ETPAG8 provide?
The 74FCT16245ETPAG8 provides two independent 8-bit transceiver groups (Side 1 and Side 2), each with dedicated direction (xDIR) and output enable (xOE) controls. These can be operated separately or combined into a single 16-bit transceiver by tying the respective xDIR and xOE pins together, offering flexible bus segmentation for complex system architectures.
What is the maximum capacitive load the 74FCT16245ETPAG8 can drive reliably?
The 74FCT16245ETPAG8 is characterized for CL = 50pF in switching specifications, but its +64mA output sink current enables reliable driving of significantly higher capacitance-up to ~100pF on short traces or multi-drop buses-while maintaining sub-5ns propagation delay and <0.5ns skew. Layout-dependent trace impedance and termination must be verified per application.
Is the 74FCT16245ETPAG8 pin-compatible with earlier FCT16245 variants like the AT or CT versions?
Yes, the 74FCT16245ETPAG8 is fully pin-compatible with other FCT16245 variants (e.g., 74FCT16245ATPAG, 74FCT16245CTPAG) in the same TSSOP-48 package. All share identical pinout, electrical interface, and control logic; differences are limited to speed grade (propagation delay) and drive strength consistency across temperature-no PCB redesign is needed when upgrading to the E-grade.
74FCT16245ETPAG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- 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
74FCT16245ETPAG8 FAQ
1.How can I place an order for 74FCT16245ETPAG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT16245ETPAG8 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 74FCT16245ETPAG8 reliable?
The price and inventory of 74FCT16245ETPAG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT16245ETPAG8 is usually 5 days.
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74FCT16245ETPAG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT16245ETPAG8 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 74FCT16245ETPAG8?
For technical support, including 74FCT16245ETPAG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT16245ETPAG8 requirements.
6.How does Aetrix verify that 74FCT16245ETPAG8 is sourced from the original manufacturer or authorized distributors?
All 74FCT16245ETPAG8 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 74FCT16245ETPAG8 meets industry standards.
7.What is the process for return or replacement of 74FCT16245ETPAG8?
All 74FCT16245ETPAG8 units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT16245ETPAG8, 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 74FCT16245ETPAG8 part is unused and in its original packaging.
Return procedure for 74FCT16245ETPAG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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