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Renesas 74FCT16245CTPAG
- Part No.:
- 74FCT16245CTPAG
- Manufacturer:
- Renesas
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74FCT16245CTPAG.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,295
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Product details
Overview
74FCT16245CTPAG 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, 4.1ns max propagation delay (industrial grade), and hysteresis-equipped inputs for noise immunity. It serves as a high-speed bus interface between A- and B-side data paths in industrial backplane and synchronous communication systems.
For engineers reviewing the 74FCT16245CTPAG datasheet, 74FCT16245CTPAG pinout, 74FCT16245CTPAG application, or 74FCT16245CTPAG equivalent, key selection criteria include output skew (<0.5ns), live-insertion support via power-off disable, TTL-compatible input thresholds, and TSSOP-48 package compatibility with high-density PCB layouts.
Technical Context
The 74FCT16245CTPAG implements two independent direction-control domains (1DIR/2DIR) and two output-enable controls (1OE/2OE), enabling flexible partitioning into two 8-bit transceivers or one 16-bit unit. Its dual-metal CMOS process delivers low static current (≤500µA) and supports operation across –40°C to +85°C at VCC = 5.0V ±10%.
All I/O pins feature hysteresis (≥100mV), clamp diodes (VIK ≤ –1.2V), and power-off leakage ≤±1µA at VCC = 0V. Output buffers are designed for low ground bounce (VOLP < 1.0V) and high-capacitance load driving-critical for backplane termination and hot-swap board interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5.0V ±10% - fixed single-rail operation; no internal regulation or multi-voltage support |
| Propagation Delay | Max 4.1ns (tPLH/tPHL, CL = 50pF) - enables >200MHz bus handshaking in synchronous systems |
| Output Drive | –32mA IOH / +64mA IOL - drives terminated 50Ω backplanes and multiple TTL loads without external buffers |
| Input Hysteresis | ≥100mV - rejects high-frequency noise on shared control lines in electrically noisy industrial environments |
| Output Skew | <0.5ns (tSK(o)) - ensures deterministic timing alignment across all 16 bits for parallel data capture |
| Power-Off Disable | IOFF ≤ ±1µA at VCC = 0V - permits safe live insertion into powered backplanes without bus contention |
| ESD Rating | >2000V HBM, >200V MM - meets MIL-STD-883 Class B requirements for ruggedized industrial deployment |
Pinout & Package
TSSOP-48 (Thin Shrink Small Outline Package, Green, RoHS-compliant) with 0.5mm pitch; 12.5mm × 6.1mm body size; exposed pad not present; moisture sensitivity level (MSL) 1 per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control inputs (active HIGH) | Set data flow direction per 8-bit domain: LOW = B→A, HIGH = A→B; overrides only when xOE is active |
| 1OE, 2OE | Output enable inputs (active LOW) | Force high-impedance state on respective 8-bit port; override xDIR and disable both A/B sides simultaneously |
| 1A1–1A8, 2A1–2A8 | Side-A I/O terminals | Bidirectional data ports connected to local bus or controller; internally buffered with hysteresis and drive capability |
| 1B1–1B8, 2B1–2B8 | Side-B I/O terminals | Bidirectional data ports connected to remote bus or backplane; same electrical specs as Side-A |
| VCC (Pins 11, 24, 37, 48) | Power supply | Four dedicated VCC pins reduce IR drop and improve noise rejection across wide bus widths |
| GND (Pins 10, 23, 36, 47) | Ground reference | Four GND pins provide low-inductance return paths essential for clean switching of 16-bit parallel signals |
Key Features
| Feature | Design Value |
|---|---|
| Live-insertion support | Power-off disable outputs (IOFF ≤ ±1µA) prevent bus contention during hot-swap of daughterboards in modular systems |
| Dual-domain control | Independent 1DIR/1OE and 2DIR/2OE allow asymmetric bus bridging-e.g., A→B on Port 1, B→A on Port 2 |
| Noise-immune inputs | Hysteresis ≥100mV eliminates false triggering from EMI on long traces or shared control buses |
| Backplane-optimized drive | –32mA/64mA output strength sustains signal integrity across 50Ω-terminated stubs up to 15cm in length |
| Low-skew timing | Guaranteed tSK(o) < 0.5ns ensures setup/hold margin preservation in high-speed parallel interfaces |
Applications
| Industrial Backplane Interface | Modular PLC I/O Carrier |
|---|---|
Use Scenario: Interfacing CPU module to distributed I/O expansion slots via passive backplane. IC Role / Device Role / Timing Role: Bidirectional data transceiver buffering 16-bit parallel address/data bus between master and slave cards. Use Value: High drive strength and low skew ensure reliable 20+ MHz bus transfers across 10-slot backplane with stub lengths up to 12cm. | Use Scenario: Hot-swappable analog/digital I/O modules plugged into central controller chassis. IC Role / Device Role / Timing Role: Isolating and translating local module bus to chassis-wide backplane bus with live-insertion safety. Use Value: Power-off disable prevents bus contention during module insertion/removal; hysteresis rejects noise from relay switching and motor drives. |
| Test Equipment Bus Extender | Synchronous Data Acquisition System |
Use Scenario: Extending GPIB or custom parallel control bus between mainframe and peripheral instruments. IC Role / Device Role / Timing Role: Level-shifting and driving high-capacitance cabling between instrument racks. Use Value: 64mA sink current maintains VOL < 0.55V over 2m shielded cable (CL ≈ 120pF), enabling error-free handshaking. | Use Scenario: Synchronizing 16-channel ADC samples across multiple sensor nodes to central FPGA. IC Role / Device Role / Timing Role: Transmitting time-aligned sample data from local ADC FIFO to shared memory bus. Use Value: Sub-0.5ns output skew preserves inter-channel timing correlation critical for phase-coherent signal analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74FCT16245CPAG | Same pinout, identical AC/DC specs, but manufactured by Texas Instruments; lacks MIL-STD-883 screening option | Not qualified for military temperature range (–55°C to +125°C); limited to industrial grade only | Select when cost-sensitive industrial designs require second-source availability without extended temp needs |
| 74LVCH16245APAG | 3.3V-only supply (1.65–3.6V), lower drive (–24mA/24mA), higher propagation delay (max 5.6ns) | Designed for mixed-voltage 3.3V/5V system interfacing; incompatible with 5V-only legacy backplanes | Select only when migrating to 3.3V infrastructure and accepting reduced drive/speed trade-offs |
Compared with SN74FCT16245CPAG and 74LVCH16245APAG, the 74FCT16245CTPAG uniquely combines 5V operation, military-grade temperature support, live-insertion capability, and sub-0.5ns skew-making it irreplaceable in ruggedized, high-reliability backplane architectures where voltage, timing, and robustness are non-negotiable.
Availability
74FCT16245CTPAG is available at Aetrix Electronics and suitable for industrial backplane interfaces, modular PLC carrier designs, test equipment bus extension, and synchronous data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74FCT16245CTPAG 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 74FCT16245CTPAG belongs to Renesas' legacy IDT logic family-designed specifically for high-reliability, high-speed parallel bus bridging in industrial control, instrumentation, and military-grade computing platforms.
FAQ
What is the operating temperature range for the 74FCT16245CTPAG?
The 74FCT16245CTPAG is rated for industrial temperature operation from –40°C to +85°C. This range is explicitly defined in the ordering information and electrical characteristics tables of the official Renesas datasheet, and applies to the "CT" variant denoted in the part number. It does not support the extended military range (–55°C to +125°C) reserved for "54FCT" and "T" suffix variants.
Does the 74FCT16245CTPAG support live insertion, and how is this implemented?
Yes, the 74FCT16245CTPAG supports live insertion through its power-off disable functionality. When VCC = 0V, the I/O pins exhibit ≤±1µA off-state leakage (IOFF), placing them in a high-impedance state that prevents bus contention during hot-swap events. This behavior is confirmed in the DC Electrical Characteristics table under "Input/Output Power Off Leakage" and is a defining feature of the FCT logic family.
What are the absolute maximum ratings for input voltage on the 74FCT16245CTPAG?
The 74FCT16245CTPAG specifies two absolute maximum input voltage ratings: –0.5V to +7.0V for non-I/O pins (e.g., xOE, xDIR), and –0.5V to VCC+0.5V for A-port and B-port I/O pins. These limits are documented in the Absolute Maximum Ratings table and reflect the presence of internal clamp diodes, which conduct below –0.7V or above VCC+0.5V to protect the core circuitry.
Can the 74FCT16245CTPAG be used with 3.3V logic systems?
No, the 74FCT16245CTPAG is a 5V-only device. Its DC electrical specifications-including VIH (min 2.0V), VIL (max 0.8V), VOH (min 2.4V at –12mA), and VOL (max 0.55V at 64mA)-are guaranteed only at VCC = 5.0V ±10%. It lacks 3.3V tolerance or dual-supply capability, and interfacing directly with 3.3V systems risks violating input voltage limits or degrading noise margins.
How many independent control domains does the 74FCT16245CTPAG provide?
The 74FCT16245CTPAG provides two independent control domains: one for bits 1–8 (1DIR/1OE) and another for bits 9–16 (2DIR/2OE). This allows simultaneous but asymmetric operation-for example, transmitting A→B on the first byte while receiving B→A on the second byte-enabling flexible bus arbitration in custom protocol implementations.
74FCT16245CTPAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74FCT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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
74FCT16245CTPAG FAQ
1.How can I place an order for 74FCT16245CTPAG through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT16245CTPAG 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 74FCT16245CTPAG reliable?
The price and inventory of 74FCT16245CTPAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT16245CTPAG is usually 5 days.
3.What payment methods are accepted for 74FCT16245CTPAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74FCT16245CTPAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74FCT16245CTPAG?
74FCT16245CTPAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT16245CTPAG 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 74FCT16245CTPAG?
For technical support, including 74FCT16245CTPAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT16245CTPAG requirements.
6.How does Aetrix verify that 74FCT16245CTPAG is sourced from the original manufacturer or authorized distributors?
All 74FCT16245CTPAG 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 74FCT16245CTPAG meets industry standards.
7.What is the process for return or replacement of 74FCT16245CTPAG?
All 74FCT16245CTPAG units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT16245CTPAG, 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 74FCT16245CTPAG part is unused and in its original packaging.
Return procedure for 74FCT16245CTPAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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