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Texas Instruments CY74FCT16245ATPVC
- Part No.:
- CY74FCT16245ATPVC
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16245ATPVC.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,272
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Product details
Overview
CY74FCT16245ATPVC from Texas Instruments is a 16-bit non-inverting bidirectional transceiver designed for high-speed synchronous bus communication between two data buses. It supports 5V ±10% supply, delivers 64 mA sink / 32 mA source drive strength, and operates across –40°C to +85°C. It is used in industrial backplane interfaces requiring robust low-impedance driving and controlled edge rates.
For engineers reviewing the CY74FCT16245ATPVC datasheet, CY74FCT16245ATPVC pinout, CY74FCT16245ATPVC application, or CY74FCT16245ATPVC equivalent, key selection criteria include output drive capability (64 mA sink), propagation delay (max 4.5 ns), Ioff partial-power-down support, ground-bounce performance (<1.0 V), and SSOP-48 package compatibility with legacy board layouts.
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 flow is determined by DIR (active-HIGH), while bus isolation is managed by OE (active-LOW), enabling three-state operation on both A and B ports.
It features Ioff circuitry that disables outputs during power-down to prevent backflow current, and edge-rate control logic that reduces system-level noise and ground bounce-critical for stable operation on high-capacitance backplanes and dense PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5V ±10% - compatible with standard TTL/CMOS 5V systems without level-shifting |
| Propagation Delay | Max 4.5 ns (A↔B) - enables >200 MHz bus timing in short-path configurations |
| Sink/Source Drive | 64 mA / 32 mA - sufficient to drive heavy capacitive loads and unterminated transmission lines |
| Ground Bounce (VOLP) | <1.0 V at VCC=5V, TA=25°C - minimizes logic errors during simultaneous switching |
| Ioff Support | Enabled - allows safe partial-power-down in mixed-voltage or hot-swap systems |
| Operating Temp | –40°C to +85°C - qualified for industrial ambient environments without derating |
| ESD Rating | >2000 V HBM - provides robust handling margin during assembly and field service |
Pinout & Package
Package: 48-pin SSOP (O48), 300-mil body width, 0.5 mm pitch, 1.2 mm max height - compatible with standard surface-mount reflow profiles and legacy SSOP footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction Control Inputs (per 8-bit section) | Active-HIGH signal selecting data flow direction: HIGH = A→B, LOW = B→A |
| 1OE, 2OE | Output Enable Inputs (active-LOW) | Disables both A and B ports to high-impedance when HIGH; enables bidirectional transfer when LOW |
| 1A1–1A8, 2A1–2A8 | Port A I/O Terminals | Bidirectional data pins for first and second 8-bit bus segments; function as inputs or three-state outputs based on DIR/OE |
| 1B1–1B8, 2B1–2B8 | Port B I/O Terminals | Corresponding bidirectional data pins for second bus side; electrically isolated from A ports when OE is HIGH |
| VCC (Pins 24, 25, 47, 48) | Power Supply | Four dedicated VCC connections reduce IR drop and improve noise immunity across wide bus widths |
| GND (Pins 12, 13, 26, 27, 39, 40) | Ground Return | Six GND pins provide low-inductance return paths essential for stable high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| Ioff partial-power-down | Prevents damaging current backflow when VCC = 0 V, supporting hot-swap and multi-rail system designs |
| Edge-rate control | Reduces simultaneous switching noise (SSN) and EMI without external series resistors |
| Typical output skew | <250 ps - ensures tight timing alignment across all 16 bits for synchronous bus capture |
| High sink current | 64 mA per output - drives long traces, multiple TTL loads, or unterminated backplanes directly |
| Low ground bounce | VOLP <1.0 V - maintains valid logic LOW levels even under full 16-bit switching conditions |
Applications
| Industrial Backplane Interface | Legacy Bus Bridge |
|---|---|
Use Scenario: Interfacing a microcontroller local bus to a 16-bit ISA or VME-style backplane with distributed loads up to 100 pF per line. IC Role / Device Role / Timing Role: Bidirectional level-consistent transceiver managing data flow direction and bus isolation under CPU control via DIR/OE. Use Value: 64 mA sink drive ensures signal integrity across 15 cm traces; 4.5 ns propagation enables 100+ MHz burst transfers without timing closure issues. | Use Scenario: Connecting modern FPGA-based peripherals to aging 5V parallel control buses (e.g., printer port, memory-mapped I/O) requiring precise timing and load tolerance. IC Role / Device Role / Timing Role: Voltage-compatible bus translator providing direction control, three-state isolation, and noise-suppressed edge transitions. Use Value: Edge-rate control and <250 ps skew preserve setup/hold margins across all 16 lines; Ioff prevents backfeed during FPGA configuration reset sequences. |
| Automated Test Equipment (ATE) Fixture | Digital Signal Acquisition System |
Use Scenario: Bidirectional DUT interface in boundary-scan test fixtures where multiple 16-bit channels must be driven/sensed under synchronized control. IC Role / Device Role / Timing Role: High-drive transceiver enabling simultaneous stimulus and response capture with minimal skew-induced sampling error. Use Value: 64 mA sink capability handles fixture parasitics; 4.5 ns max delay supports sub-200 ns test cycle times with deterministic timing. | Use Scenario: Front-end data aggregation from multiple 16-bit ADCs into a central DSP or FPGA, requiring clean, low-noise bus coupling without added termination. IC Role / Device Role / Timing Role: Noise-resilient bus driver isolating ADC digital outputs from shared acquisition bus, with direction control for calibration data upload. Use Value: VOLP <1.0 V prevents false LOW detection during full-word conversions; SSOP-48 footprint fits high-density sensor module layouts. |
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 |
|---|---|---|---|
| CY74FCT16245CTPVC | 4.1 ns max propagation delay (vs. 4.5 ns); identical drive strength, Ioff, and package | Better timing margin for ultra-high-speed synchronous buses (>220 MHz) | Select when propagation delay is critical and layout allows tighter timing closure |
| SN74FCT16245ATPVCT | Same speed grade (4.5 ns), identical electrical specs, but TI-branded marking and RoHS-compliant finish | No functional difference; preferred for TI-sourced BOMs or compliance-driven procurement | Choose for direct TI logistics alignment or when TI part marking is required for traceability |
Compared with CY74FCT16245CTPVC, the CY74FCT16245ATPVC trades 0.4 ns of speed margin for broader availability in SSOP packaging; versus SN74FCT16245ATPVCT, it differs only in manufacturer branding and material finish-both meet identical electrical and thermal specifications.
Availability
CY74FCT16245ATPVC is available at Aetrix Electronics and suitable for industrial backplane interfaces, legacy bus bridging, automated test equipment fixtures, and digital signal acquisition systems requiring stable component supply, long-term lifecycle support, and SSOP-48 footprint compatibility.
Supply support for CY74FCT16245ATPVC 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 specializing in analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.
The CY74FCT16245ATPVC belongs to TI's FCT logic family, engineered for high-speed, low-noise 5V bus interfacing in industrial and instrumentation systems where drive strength, timing predictability, and power-down safety are critical.
FAQ
What is the maximum propagation delay specification for CY74FCT16245ATPVC?
The maximum propagation delay (tPLH/tPHL) for CY74FCT16245ATPVC is 4.5 ns over the full industrial temperature range (–40°C to +85°C) and VCC = 5V ±10%. This value applies to data transfer in either direction (A↔B) and is measured under standard load conditions. The CY74FCT16245ATPVC datasheet confirms this speed grade in its Ordering Information table and Switching Characteristics section.
Does CY74FCT16245ATPVC support partial-power-down operation?
Yes, CY74FCT16245ATPVC includes Ioff circuitry that disables outputs when VCC = 0 V, preventing damaging current backflow from live buses into a powered-down device. This feature is explicitly documented in the Functional Description and Maximum Ratings sections of the CY74FCT16245ATPVC datasheet and is verified across the industrial temperature range.
What are the output drive capabilities of CY74FCT16245ATPVC?
CY74FCT16245ATPVC provides 64 mA sink current and 32 mA source current per output, as specified in the CY74FCT16245T Features section and confirmed in the Output Drive Characteristics table. These values are guaranteed over VCC = 4.5 V to 5.5 V and ambient temperatures from –40°C to +85°C, making CY74FCT16245ATPVC suitable for driving high-capacitance loads and low-impedance backplanes.
Which package type does CY74FCT16245ATPVC use?
CY74FCT16245ATPVC uses a 48-pin SSOP (Shrink Small Outline Package) with 300-mil body width and 0.5 mm lead pitch, designated O48 in TI's ordering nomenclature. This package is confirmed in the Ordering Information table and Package Diagrams section of the CY74FCT16245ATPVC datasheet, and its mechanical dimensions are fully detailed in the DGG0048A outline drawing.
How does CY74FCT16245ATPVC manage ground bounce during switching?
CY74FCT16245ATPVC limits ground bounce (VOLP) to less than 1.0 V at VCC = 5 V and TA = 25°C, as measured under full 16-bit switching conditions. This performance is achieved through integrated edge-rate control circuitry and optimized output driver design-both explicitly cited in the CY74FCT16245ATPVC Features and Functional Description sections.
CY74FCT16245ATPVC 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
CY74FCT16245ATPVC FAQ
1.How can I place an order for CY74FCT16245ATPVC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16245ATPVC 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 CY74FCT16245ATPVC reliable?
The price and inventory of CY74FCT16245ATPVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16245ATPVC is usually 5 days.
3.What payment methods are accepted for CY74FCT16245ATPVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16245ATPVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT16245ATPVC?
CY74FCT16245ATPVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16245ATPVC 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 CY74FCT16245ATPVC?
For technical support, including CY74FCT16245ATPVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16245ATPVC requirements.
6.How does Aetrix verify that CY74FCT16245ATPVC is sourced from the original manufacturer or authorized distributors?
All CY74FCT16245ATPVC 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 CY74FCT16245ATPVC meets industry standards.
7.What is the process for return or replacement of CY74FCT16245ATPVC?
All CY74FCT16245ATPVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16245ATPVC, 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 CY74FCT16245ATPVC part is unused and in its original packaging.
Return procedure for CY74FCT16245ATPVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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