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Texas Instruments CY74FCT16245CTPVC
- Part No.:
- CY74FCT16245CTPVC
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16245CTPVC.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,178
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Product details
Overview
CY74FCT16245CTPVC from Texas Instruments is a 16-bit non-inverting bidirectional transceiver in 48-pin SSOP package, featuring 64 mA sink / 32 mA source drive strength, 4.1 ns max propagation delay (A↔B), and Ioff partial-power-down support. It enables high-speed bus interfacing between microprocessor buses and peripheral subsystems in industrial control backplanes.
For engineers reviewing the CY74FCT16245CTPVC datasheet, CY74FCT16245CTPVC pinout, CY74FCT16245CTPVC application, or CY74FCT16245CTPVC equivalent, key selection criteria include its 5V ±10% supply operation, industrial temperature range (–40°C to +85°C), edge-rate controlled outputs for noise reduction, and dual-octet or unified-16-bit configuration flexibility.
Technical Context
This device implements two independent 8-bit transceiver blocks (1A/1B and 2A/2B) with shared directional control (DIR) and output enable (OE) per block. Data flow direction is determined by DIR: LOW enables B→A transfer; HIGH enables A→B transfer. OE is active-low and places outputs in high-impedance state when HIGH.
The CY74FCT16245CTPVC uses FCT logic family architecture with TTL-compatible inputs, CMOS-level outputs, and integrated edge-rate control circuitry to limit di/dt and reduce ground bounce (<1.0 V typical VOLP). Its Ioff protection disables outputs during power-down to prevent backflow current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - compatible with legacy 5V TTL/CMOS systems without level-shifting |
| Propagation Delay | 1.5–4.1 ns (A↔B) - supports >200 MHz bus timing in short trace applications |
| Output Drive | 64 mA sink / 32 mA source - drives high-capacitance backplanes and unterminated stubs |
| Operating Temp | –40°C to +85°C - qualified for industrial embedded environments |
| Ioff Support | Enabled - prevents damaging current flow during partial power-down sequencing |
| Input Hysteresis | 100 mV - improves noise immunity on slow-rising or noisy control signals (DIR/OE) |
| ESD Rating | >2000 V HBM - withstands handling and board-level ESD events without latch-up |
Pinout & Package
Package: 48-pin SSOP (O48), 300-mil body width, 0.025-inch pitch, 1.2 mm max height, JEDEC MO-153 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction Control Input (per octet) | Active-HIGH signal selects A→B data flow; LOW selects B→A |
| 1OE, 2OE | Output Enable Input (active-LOW, per octet) | Drives associated A/B ports to high-Z when HIGH; enables transfer when LOW |
| 1A1–1A8, 2A1–2A8 | Port A I/O terminals | Bidirectional data lines - function as inputs or three-state outputs depending on DIR/OE state |
| 1B1–1B8, 2B1–2B8 | Port B I/O terminals | Bidirectional data lines - mirror A-port behavior with opposite directionality per DIR setting |
| VCC (Pins 24, 25, 47, 48) | Power supply | Four dedicated VCC pins minimize IR drop and improve noise margin across wide bus |
| GND (Pins 12, 13, 26, 27, 39, 40) | Ground reference | Six GND pins provide low-inductance return paths for high-speed switching currents |
Key Features
| Feature | Design Value |
|---|---|
| Edge-rate controlled outputs | Reduces simultaneous switching noise (SSN) and ground bounce to <1.0 V typical at 5V |
| Ioff partial-power-down | Disables outputs when VCC = 0 V, blocking reverse current up to ±1 µA |
| Low output skew | <250 ps typical - ensures deterministic timing alignment across all 16 bits |
| TTL-compatible inputs | VIH = 2.0 V min, VIL = 0.8 V max - interoperable with legacy 5V logic families |
| Industrial temperature range | –40°C to +85°C operation - validated for extended thermal cycling in control cabinets |
Applications
| Industrial PLC Backplane Interface | Legacy Microprocessor Bus Extension |
|---|---|
Use Scenario: Interfacing a 16-bit CPU bus (e.g., Intel 80C188) to distributed I/O modules over a 12-inch PCB backplane with 30 pF/inch trace capacitance. IC Role / Device Role / Timing Role: Bidirectional level-preserving transceiver enabling synchronous read/write cycles between master and slave slots. Use Value: 64 mA sink capability drives full backplane load without external termination; 4.1 ns delay maintains setup/hold margins at 25 MHz clock rates. |
Use Scenario: Extending address/data bus of an aging 80286-based motion controller to add FPGA-based servo interface cards. IC Role / Device Role / Timing Role: Isolates timing-critical CPU bus from slower peripheral expansion while preserving signal integrity. Use Value: Ioff support allows hot-swap of expansion cards without powering down main CPU; edge-rate control suppresses crosstalk into adjacent analog sensor traces. |
| Automated Test Equipment (ATE) Pin Electronics | Industrial Data Acquisition Hub |
Use Scenario: Driving 16-channel DUT interface in modular ATE rack where each slot connects to different voltage-domain peripherals. IC Role / Device Role / Timing Role: Direction-controlled bus translator between system controller and per-slot driver/receiver ICs. Use Value: Dual-octet architecture permits independent control of upper/lower byte lanes; 2000 V HBM ESD rating survives repeated probe contact events. |
Use Scenario: Aggregating RS-485, CAN, and analog input module data onto a central ARM-based host via parallel FIFO interface. IC Role / Device Role / Timing Role: High-drive transceiver buffering parallel data path between FPGA FIFO controller and microcontroller data bus. Use Value: 32 mA source strength ensures clean logic-high transitions into 100+ pF bus capacitance; industrial temp range matches enclosure ambient conditions. |
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 |
|---|---|---|---|
| CY74FCT162245CTPVC | 24 mA balanced drive (sink/source), lower ground bounce (<0.6 V), no high-drive capability | Better suited for transmission-line routing; not recommended for heavy capacitive loads | Select when driving controlled-impedance traces >6 inches or when minimizing SSN is primary concern |
| CY74FCT162H245CTPVC | Includes bus-hold on all A/B inputs (±50 µA sustain current), same 24 mA drive as 162245 | Eliminates external pull-ups on floating data lines; adds ~1.5 ns delay penalty vs. 16245 | Select when interfacing to unpowered or intermittently connected peripherals requiring input state retention |
Compared with CY74FCT16245CTPVC, the 162245CTPVC trades drive strength for lower noise and better transmission-line compatibility, while the 162H245CTPVC adds bus-hold functionality at the cost of speed and drive-making CY74FCT16245CTPVC optimal for high-capacitance, high-speed backplane use cases where raw drive and minimal delay are critical.
Availability
CY74FCT16245CTPVC is available at Aetrix Electronics and suitable for industrial PLC backplane interfaces, legacy microprocessor bus extensions, and automated test equipment requiring stable component supply across long-lifecycle programs.
Supply support for CY74FCT16245CTPVC 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
CY74FCT16245CTPVC belongs to TI's FCT logic family, engineered specifically for high-speed, low-noise 5V bus interfacing in industrial control and instrumentation systems where reliability under thermal stress and ESD exposure is mandatory.
FAQ
What is the maximum operating frequency supported by CY74FCT16245CTPVC?
CY74FCT16245CTPVC does not specify a maximum clock frequency directly, but its 4.1 ns max propagation delay and 250 ps output skew support reliable operation at bus clock rates up to 25 MHz in typical PCB layouts with ≤30 pF total load capacitance. System-level timing must account for board trace delays and setup/hold requirements of connected devices.
Does CY74FCT16245CTPVC support hot-swap or partial-power-down operation?
Yes, CY74FCT16245CTPVC includes Ioff circuitry that disables all outputs when VCC = 0 V, limiting reverse current to ±1 µA. This allows safe insertion/removal in live backplanes and enables partial-power-down modes in multi-rail systems without risk of damaging current backflow through the device.
Can CY74FCT16245CTPVC be used as two independent 8-bit transceivers?
Yes, CY74FCT16245CTPVC contains two fully independent 8-bit transceiver sections (1A/1B and 2A/2B), each with dedicated DIR and OE controls. This allows separate direction and enable control for upper and lower bytes - essential for byte-wide memory or peripheral interfacing where A/B port roles differ per octet.
What is the purpose of the multiple VCC and GND pins on CY74FCT16245CTPVC?
CY74FCT16245CTPVC has four VCC pins (24, 25, 47, 48) and six GND pins (12, 13, 26, 27, 39, 40) to reduce power distribution impedance, minimize ground bounce during simultaneous switching, and maintain stable supply voltage across all 16 drivers. This layout is critical for maintaining signal integrity in high-current, high-speed bus applications.
How does CY74FCT16245CTPVC differ from CY74FCT162245CTPVC in terms of drive capability?
CY74FCT16245CTPVC provides asymmetric 64 mA sink / 32 mA source drive, optimized for driving heavy capacitive loads like backplanes. In contrast, CY74FCT162245CTPVC offers symmetric 24 mA sink/source drive with built-in current-limiting resistors - reducing ground bounce and eliminating need for external terminations, but sacrificing peak drive strength.
CY74FCT16245CTPVC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Bulk
- 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
CY74FCT16245CTPVC FAQ
1.How can I place an order for CY74FCT16245CTPVC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16245CTPVC 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 CY74FCT16245CTPVC reliable?
The price and inventory of CY74FCT16245CTPVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16245CTPVC is usually 5 days.
3.What payment methods are accepted for CY74FCT16245CTPVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16245CTPVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT16245CTPVC?
CY74FCT16245CTPVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16245CTPVC 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 CY74FCT16245CTPVC?
For technical support, including CY74FCT16245CTPVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16245CTPVC requirements.
6.How does Aetrix verify that CY74FCT16245CTPVC is sourced from the original manufacturer or authorized distributors?
All CY74FCT16245CTPVC 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 CY74FCT16245CTPVC meets industry standards.
7.What is the process for return or replacement of CY74FCT16245CTPVC?
All CY74FCT16245CTPVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16245CTPVC, 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 CY74FCT16245CTPVC part is unused and in its original packaging.
Return procedure for CY74FCT16245CTPVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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