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Texas Instruments 74FCT16245CTPVCTG4
- Part No.:
- 74FCT16245CTPVCTG4
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74FCT16245CTPVCTG4.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,822
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Product details
Overview
74FCT16245CTPVCTG4 from Texas Instruments is a 16-bit non-inverting bus transceiver with 3-state outputs, designed for bidirectional synchronous communication between high-capacitance buses and backplanes. It features 64 mA sink / 32 mA source drive capability, 4.1 ns max propagation delay (A↔B), and operates at 5V ±10% over –40°C to +85°C. It is used in industrial control backplane interfaces requiring robust drive strength and low ground bounce.
For engineers reviewing the 74FCT16245CTPVCTG4 datasheet, 74FCT16245CTPVCTG4 pinout, 74FCT16245CTPVCTG4 application, or 74FCT16245CTPVCTG4 equivalent, key selection criteria include output drive asymmetry (64/32 mA), Ioff partial-power-down support, edge-rate controlled switching, and SSOP-48 packaging for legacy board compatibility.
Technical Context
This device implements dual 8-bit bidirectional transceivers in a single 48-pin package, with independent DIR and OE controls per 8-bit section. Directional data flow (A→B or B→A) is determined by the DIR input, while OE enables/disables all outputs simultaneously. The Ioff circuitry ensures outputs remain high-impedance during power-down, preventing backflow current when VCC = 0V.
Unlike the balanced 24-mA variants (e.g., CY74FCT162245T), the 74FCT16245CTPVCTG4 uses asymmetric drivers optimized for driving heavy capacitive loads: 64 mA sink supports strong LOW assertion on stubbed backplanes, while 32 mA source maintains TTL-compatible HIGH levels without excessive overshoot. Ground bounce (VOLP) is specified at <1.0 V under full-load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5V ±10% - compatible with legacy 5V TTL/CMOS systems; no level-shifting required |
| Propagation Delay | 1.5–4.1 ns (A↔B) - enables >200 MHz bus operation with tight timing margins |
| Sink/Source Drive | 64 mA / 32 mA - asymmetrical drive supports heavy capacitive backplane loading and clean LOW-level assertion |
| Ground Bounce (VOLP) | <1.0 V at VCC = 5V, TA = 25°C - reduces noise coupling into shared ground planes |
| Ioff Support | Active at VCC = 0V - prevents damaging current flow during hot-insertion or partial power-down |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and control applications |
| ESD Rating | >2000 V HBM - enhances handling robustness in manufacturing and field service |
Pinout & Package
74FCT16245CTPVCTG4 is housed in a 48-pin SSOP (Shrink Small Outline Package) with 300-mil body width and 25-mil lead pitch, pin-compatible with industry-standard O48 footprint. This package provides mechanical stability for high-vibration environments and thermal performance suitable for sustained 5V operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control inputs (per 8-bit section) | Set data flow direction: DIR = L → B→A; DIR = H → A→B; enables independent octal operation |
| 1OE, 2OE | Output enable inputs (active LOW, per section) | Enable/disable 8-bit output drivers independently; HIGH = high-impedance isolation |
| 1A1–1A8, 2A1–2A8 | Port A data terminals | Bi-directional I/Os connected to local bus; driven or sensed depending on DIR/OE state |
| 1B1–1B8, 2B1–2B8 | Port B data terminals | Bi-directional I/Os connected to remote bus/backplane; functionally identical to Port A |
| VCC (Pins 24, 25, 47, 48) | Power supply | Four dedicated VCC pins reduce IR drop and improve noise immunity across wide bus widths |
| GND (Pins 12, 13, 26, 27, 37, 38) | Ground connections | Six GND pins provide low-inductance return paths critical for minimizing ground bounce under 64 mA switching |
Key Features
| Feature | Design Value |
|---|---|
| Asymmetric output drive | 64 mA sink / 32 mA source enables reliable LOW-level assertion on high-C backplanes without excessive HIGH-level overshoot |
| Edge-rate control | Internally limited slew rate reduces simultaneous switching noise (SSN) and EMI in dense PCB layouts |
| Ioff partial-power-down | Outputs disable safely at VCC = 0V, allowing live insertion into powered-backplane systems without latch-up risk |
| Low ground bounce (VOLP) | <1.0 V under worst-case 64 mA switching - preserves signal integrity on shared ground planes |
| Industrial temperature range | –40°C to +85°C operation validated across full voltage and load conditions - suitable for uncontrolled environments |
Applications
| Industrial Backplane Interface | Legacy System Bus Extension |
|---|---|
Use Scenario: Interfacing a microcontroller-based controller card to a multi-slot industrial backplane carrying sensor/actuator data. IC Role / Device Role / Timing Role: Bidirectional level-consistent transceiver buffering signals between local CPU bus and extended backplane segments. Use Value: 64 mA sink drive ensures clean LOW transitions across 100+ pF per-line backplane capacitance; 4.1 ns delay supports 25 MHz synchronous transfers. | Use Scenario: Extending an aging 5V ISA or VMEbus system with new I/O modules while retaining original timing and drive specifications. IC Role / Device Role / Timing Role: Pin-compatible bus repeater maintaining signal integrity and timing alignment across added board slots. Use Value: SSOP-48 footprint matches legacy layout requirements; Ioff allows safe hot-swap of daughter cards without powering down the main bus. |
| Programmable Logic Interconnect | Test Equipment Signal Routing |
Use Scenario: Connecting FPGA I/O banks to external memory or peripheral interfaces where drive strength exceeds FPGA native capability. IC Role / Device Role / Timing Role: High-drive buffer isolating FPGA pins from noisy or high-C loads while preserving timing predictability. Use Value: Asymmetric drive compensates for FPGA's weaker sink capability; <1.0 V VOLP prevents logic errors caused by ground shift during burst writes. | Use Scenario: Automated test equipment (ATE) channel multiplexing, where one controller must drive multiple DUT interfaces sequentially. IC Role / Device Role / Timing Role: Reconfigurable bidirectional switch enabling flexible signal path routing under software control. Use Value: Independent DIR/OE per octal allows dynamic reassignment of 16-bit lanes; 2000 V HBM ESD withstands repeated probe contact in lab environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162245CTPVCT | Balanced 24 mA drive (sink/source), lower ground bounce (<0.6 V), no Ioff | Better suited for transmission-line routing (e.g., point-to-point LVDS-adjacent traces); not rated for partial-power-down | Select when driving controlled-impedance lines and full-system power cycling is guaranteed |
| SN74LVC16245ADGGR | 3.3V-only operation, 24 mA drive, no Ioff, 3.5 ns max delay, smaller TSSOP-48 | Targets modern low-voltage systems; incompatible with 5V buses; lacks industrial temp rating | Choose only for new 3.3V designs where voltage translation is already handled upstream |
Compared with CY74FCT162245CTPVCT and SN74LVC16245ADGGR, the 74FCT16245CTPVCTG4 uniquely combines 5V operation, asymmetric high-sink drive, Ioff support, and industrial temperature qualification - making it the sole option for upgrading legacy 5V backplanes requiring hot-swap capability and heavy capacitive loading.
Availability
74FCT16245CTPVCTG4 is available at Aetrix Electronics and suitable for industrial backplane interfaces, legacy bus extensions, and programmable logic interconnects requiring stable component supply and long-term obsolescence management.
Supply support for 74FCT16245CTPVCTG4 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
Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The 74FCT family was engineered specifically for high-speed, low-noise 5V TTL-compatible bus interfacing - emphasizing drive strength, timing precision, and robustness in electrically noisy industrial environments.
FAQ
What is the maximum operating frequency supported by the 74FCT16245CTPVCTG4?
The 74FCT16245CTPVCTG4 has a maximum propagation delay of 4.1 ns (A↔B), supporting reliable operation up to approximately 200 MHz in well-terminated, low-skew configurations. Actual usable frequency depends on PCB layout, load capacitance, and signal integrity design - but the device is routinely deployed in 25–50 MHz industrial backplane applications with margin.
Does the 74FCT16245CTPVCTG4 support partial-power-down mode?
Yes, the 74FCT16245CTPVCTG4 includes Ioff circuitry that disables outputs when VCC = 0V, preventing damaging current backflow during partial-power-down or hot-insertion scenarios. This feature is explicitly characterized in the datasheet and tested per JEDEC JESD78.
What is the difference between 74FCT16245CTPVCTG4 and CY74FCT162245CTPVCT?
The 74FCT16245CTPVCTG4 provides asymmetric 64 mA sink / 32 mA source drive optimized for heavy capacitive loads and backplanes, while CY74FCT162245CTPVCT offers balanced 24 mA drive with lower ground bounce (<0.6 V) and no Ioff support. They share pinout and package but differ in drive architecture and power-down capability.
Is the 74FCT16245CTPVCTG4 RoHS compliant?
Yes, the 74FCT16245CTPVCTG4 is RoHS compliant per TI's official packaging addendum. It carries lead-free finish and meets JEDEC J-STD-609 Class 1 marking requirements, with MSL 1 rating and peak reflow tolerance up to 260°C.
Can the 74FCT16245CTPVCTG4 be used in place of the 74FCT16245TPVCT?
Yes - both share identical SSOP-48 packaging and pinout, but the 74FCT16245CTPVCTG4 is the 4.1 ns speed grade ('C' suffix), whereas 74FCT16245TPVCT is the 7.0 ns grade ('T' suffix). The 'C' version offers tighter timing margins and is fully backward-compatible in timing-critical designs.
74FCT16245CTPVCTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
74FCT16245CTPVCTG4 FAQ
1.How can I place an order for 74FCT16245CTPVCTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT16245CTPVCTG4 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 74FCT16245CTPVCTG4 reliable?
The price and inventory of 74FCT16245CTPVCTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT16245CTPVCTG4 is usually 5 days.
3.What payment methods are accepted for 74FCT16245CTPVCTG4?
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4.How is shipping managed for 74FCT16245CTPVCTG4?
74FCT16245CTPVCTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT16245CTPVCTG4 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 74FCT16245CTPVCTG4?
For technical support, including 74FCT16245CTPVCTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT16245CTPVCTG4 requirements.
6.How does Aetrix verify that 74FCT16245CTPVCTG4 is sourced from the original manufacturer or authorized distributors?
All 74FCT16245CTPVCTG4 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 74FCT16245CTPVCTG4 meets industry standards.
7.What is the process for return or replacement of 74FCT16245CTPVCTG4?
All 74FCT16245CTPVCTG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT16245CTPVCTG4, 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 74FCT16245CTPVCTG4 part is unused and in its original packaging.
Return procedure for 74FCT16245CTPVCTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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