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Texas Instruments CY74FCT16245TPVC
- Part No.:
- CY74FCT16245TPVC
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16245TPVC.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,794
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Product details
Overview
CY74FCT16245TPVC 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, 7.0 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 CY74FCT16245TPVC datasheet, CY74FCT16245TPVC pinout, CY74FCT16245TPVC application, or CY74FCT16245TPVC equivalent, key selection criteria include output drive capability for high-capacitance loads, ground-bounce performance (VOLP <1.0 V), and industrial temperature operation (–40°C to +85°C).
Technical Context
This device implements dual 8-bit transceiver blocks with independent DIR and OE controls per side, supporting synchronous bidirectional data flow between two 16-bit buses. Direction is controlled by DIR (active-HIGH), while three-state output enable is managed by OE (active-LOW), with both signals referenced to VCC = 5 V ±10%.
The CY74FCT16245TPVC uses FCT logic family architecture with edge-rate control circuitry to reduce switching noise, and includes Ioff protection enabling safe operation during partial power-down. It does not incorporate bus-hold circuitry-unlike CY74FCT162H245T-and lacks balanced 24-mA drivers found in CY74FCT162245T variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - compatible with standard TTL/CMOS 5-V systems without level-shifting |
| Propagation Delay | 7.0 ns max (A↔B) - supports ≤140 MHz bus toggle rates in point-to-point configurations |
| Sink/Source Drive | 64 mA sink / 32 mA source - drives heavy capacitive loads (e.g., backplane traces >100 pF) |
| Ground Bounce (VOLP) | <1.0 V at VCC = 5 V, TA = 25°C - minimizes logic upset during simultaneous switching |
| Operating Temp | –40°C to +85°C - qualified for industrial embedded and automation equipment |
| Ioff Support | Enabled - prevents backflow current when VCC = 0 V, allowing hot-insertion in powered-backplane systems |
| ESD Rating | >2000 V HBM - withstands handling and board-level electrostatic discharge events |
Pinout & Package
48-pin SSOP (O48), 300-mil body width, 0.025-inch pitch, JEDEC MO-153 compliant. Pin 1 marked via corner notch; gage plane height ≤1.2 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control inputs (per 8-bit bank) | Active-HIGH signal selects data flow direction: HIGH = A→B, LOW = B→A |
| 1OE, 2OE | Output enable inputs (active-LOW, per bank) | Drives outputs to high-impedance state when HIGH; enables transceiver function when LOW |
| 1A1–1A8, 2A1–2A8 | Port A I/O terminals (Bank 1 & 2) | Bidirectional data lines connected to primary bus (e.g., CPU/local bus) |
| 1B1–1B8, 2B1–2B8 | Port B I/O terminals (Bank 1 & 2) | Bidirectional data lines connected to secondary bus (e.g., peripheral/backplane bus) |
| VCC (Pins 24, 25, 47, 48) | Power supply | Four dedicated VCC pins reduce IR drop and improve noise immunity across wide bus |
| GND (Pins 12, 13, 26, 27, 39, 40) | Ground return | Six GND pins provide low-inductance return paths for high-current switching outputs |
Key Features
| Feature | Design Value |
|---|---|
| High-current drive | 64 mA sink ensures reliable logic LOW under heavy capacitive loading (e.g., 50+ cm PCB traces) |
| Edge-rate control | Controlled slew reduces simultaneous switching output (SSO) noise and EMI emissions |
| Ioff partial-power-down | Outputs disable safely when VCC = 0 V, preventing backfeed into unpowered subsystems |
| Low ground bounce | VOLP <1.0 V limits voltage droop on shared ground planes during multi-bit transitions |
| Industrial temp range | –40°C to +85°C operation supports deployment in factory-floor PLCs and motor drives |
Applications
| Microprocessor Bus Interface | Industrial Backplane Interconnect |
|---|---|
Use Scenario: Isolating and translating data between a 16-bit microcontroller bus and external memory or peripheral ICs in an industrial PLC rack. IC Role / Device Role / Timing Role: Bidirectional level-consistent transceiver managing data flow direction and isolation under software-controlled DIR/OE signals. Use Value: Enables clean bus separation with 7.0 ns propagation delay and 64 mA drive-sufficient for driving 80+ pF trace capacitance without signal degradation. | Use Scenario: Connecting multiple I/O modules to a central controller over a 16-bit parallel backplane in automated test equipment. IC Role / Device Role / Timing Role: High-drive transceiver buffering bidirectional data across long, unterminated backplane traces subject to crosstalk and ground bounce. Use Value: VOLP <1.0 V and edge-rate control suppress ground bounce-induced glitches during full-bus toggling at 10–20 MHz. |
| Legacy System Upgrade | Modular Sensor Hub Interface |
Use Scenario: Replacing obsolete 74ACT or 74AS transceivers in aging instrumentation systems requiring extended lifecycle support. IC Role / Device Role / Timing Role: Pin-compatible upgrade path delivering improved noise immunity and Ioff safety versus older bipolar families. Use Value: Maintains identical timing and logic behavior while adding partial-power-down capability and >2000 V ESD protection. | Use Scenario: Aggregating digital sensor outputs (e.g., 16-channel ADCs or digital encoders) onto a centralized processing bus in robotic joint controllers. IC Role / Device Role / Timing Role: Synchronized bidirectional interface that isolates sensor-side noise from the main processor domain using OE-controlled tri-state. Use Value: Dual independent 8-bit banks allow concurrent read/write operations across separate sensor groups without contention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT16245ATPVC | 4.5 ns max propagation delay (vs. 7.0 ns); otherwise identical electrical specs and pinout | Better suited for higher-speed buses (>200 MHz toggle rate) where timing margin is critical | Select when system timing budget requires sub-5 ns delay; same footprint and thermal profile |
| CY74FCT162245TPVC | 24 mA balanced drive (sink/source), reduced ground bounce (VOLP <0.6 V), no Ioff support | Optimized for transmission-line routing (e.g., matched-impedance PCB traces), not backplane loading | Choose for low-noise, point-to-point interconnects; avoid where high sink current or hot-swap is required |
Compared with CY74FCT16245ATPVC, the CY74FCT16245TPVC trades speed for cost and legacy compatibility; compared with CY74FCT162245TPVC, it prioritizes drive strength and Ioff safety over line-driving precision-making it optimal for industrial backplane and microprocessor interface roles.
Availability
CY74FCT16245TPVC is available at Aetrix Electronics and suitable for industrial automation, programmable logic controller (PLC) design, and legacy system maintenance requiring stable component supply and long-term obsolescence management.
Supply support for CY74FCT16245TPVC 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 specializing in analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.
The CY74FCT16245TPVC belongs to TI's FCT logic family, designed specifically for high-drive, low-noise 16-bit bus interfacing in industrial control and computing infrastructure applications.
FAQ
What is the maximum propagation delay of the CY74FCT16245TPVC?
The CY74FCT16245TPVC has a maximum propagation delay of 7.0 ns for data transfer between ports A and B under industrial conditions (–40°C to +85°C, VCC = 4.5 V to 5.5 V). This value is specified in the "Switching Characteristics" table of the official datasheet and applies to both A→B and B→A directions with DIR asserted appropriately. The CY74FCT16245TPVC is the slowest speed grade in the CY74FCT16245T series.
Does the CY74FCT16245TPVC support partial-power-down mode?
Yes, the CY74FCT16245TPVC supports partial-power-down mode via its Ioff feature. When VCC = 0 V, the Ioff circuitry disables all outputs, preventing damaging current backflow from live buses into the unpowered device. This capability is explicitly confirmed in the Functional Description and Maximum Ratings sections of the datasheet and is a defining characteristic of the FCT16245T family.
What package type is used for the CY74FCT16245TPVC?
The CY74FCT16245TPVC uses a 48-pin SSOP (Shrink Small Outline Package) with 300-mil body width and 0.025-inch lead pitch, designated O48 in TI's ordering nomenclature. This package is distinct from the TSSOP (Z48) variant used in CY74FCT16245TPACT and is mechanically defined in TI's mechanical drawing DL-048A.
Can the CY74FCT16245TPVC be used as two independent 8-bit transceivers?
No-the CY74FCT16245TPVC is configured exclusively as a single 16-bit transceiver. Unlike the CY74FCT162245T and CY74FCT162H245T variants, the CY74FCT16245TPVC does not support split-octal operation. Its DIR and OE controls are shared across all 16 bits, and the functional description explicitly states that only devices other than CY74FCT16245T can operate as two independent octals.
What is the output drive capability of the CY74FCT16245TPVC?
The CY74FCT16245TPVC provides 64 mA sink current and 32 mA source current per output, as specified in the "CY74FCT16245T Features" section and verified in the Output Drive Characteristics table. This asymmetric drive supports robust LOW-level signaling into high-capacitance loads such as backplane traces, while maintaining TTL-compatible HIGH-level voltage margins (VOH ≥2.0 V at –32 mA).
CY74FCT16245TPVC 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
CY74FCT16245TPVC FAQ
1.How can I place an order for CY74FCT16245TPVC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16245TPVC 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 CY74FCT16245TPVC reliable?
The price and inventory of CY74FCT16245TPVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16245TPVC is usually 5 days.
3.What payment methods are accepted for CY74FCT16245TPVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16245TPVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT16245TPVC?
CY74FCT16245TPVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16245TPVC 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 CY74FCT16245TPVC?
For technical support, including CY74FCT16245TPVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16245TPVC requirements.
6.How does Aetrix verify that CY74FCT16245TPVC is sourced from the original manufacturer or authorized distributors?
All CY74FCT16245TPVC 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 CY74FCT16245TPVC meets industry standards.
7.What is the process for return or replacement of CY74FCT16245TPVC?
All CY74FCT16245TPVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16245TPVC, 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 CY74FCT16245TPVC part is unused and in its original packaging.
Return procedure for CY74FCT16245TPVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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