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Texas Instruments CY74FCT162245ATPVC
- Part No.:
- CY74FCT162245ATPVC
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT162245ATPVC.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,253
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Product details
Overview
CY74FCT162245ATPVC from Texas Instruments is a 16-bit non-inverting bus transceiver with balanced 24-mA output drivers, Ioff partial-power-down support, and industrial-grade operation (–40°C to +85°C) at VCC = 5V ±10%. It enables bidirectional data flow between two buses in high-speed digital systems such as memory interfaces and backplane drivers.
For engineers reviewing the CY74FCT162245ATPVC datasheet, CY74FCT162245ATPVC pinout, CY74FCT162245ATPVC application, or CY74FCT162245ATPVC equivalent, key selection criteria include its 4.5-ns max propagation delay, 24-mA balanced drive strength, <0.6V typical ground bounce, TSSOP/SSOP package compatibility, and bus-noise-reduction features for transmission-line driving.
Technical Context
This device operates as a dual-octal or unified 16-bit transceiver controlled by DIR (direction) and OE (output enable, active-low). Its balanced output drivers incorporate internal current-limiting resistors to minimize undershoot and reduce system switching noise without external termination.
The CY74FCT162245ATPVC integrates Ioff circuitry to disable outputs during power-down, preventing damaging current backflow, and features edge-rate control for improved noise immunity. It does not include bus-hold functionality-unlike the CY74FCT162H245T variant-and is specified only for 5-V operation with TTL-compatible input thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - fixed single-rail operation; no 3.3-V or mixed-voltage support. |
| Propagation Delay (tPLH/tPHL) | Max 4.5 ns - ensures sub-5-ns timing margin for 200-MHz bus cycles. |
| Output Drive Strength | ±24 mA - balanced sourcing/sinking enables clean signal integrity on unterminated lines. |
| Ground Bounce (VOLP) | <0.6 V typical at VCC = 5 V, TA = 25°C - reduces simultaneous switching noise in dense PCB layouts. |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments without derating. |
| Ioff Support | Yes - disables outputs during partial power-down to prevent back-current into powered sections. |
| Input Hysteresis | 100 mV - improves noise immunity on slow or noisy control signals like DIR/OE. |
Pinout & Package
Package: 48-pin SSOP (O48), 300-mil body width, 0.025-inch pitch, 1.2-mm max height. RoHS-compliant, moisture sensitivity level (MSL) per JEDEC MO-153.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control inputs (dual-octal mode) | Set data flow direction per octal bank: HIGH = A→B, LOW = B→A. |
| 1OE, 2OE | Output enable inputs (active LOW) | Enable/disable respective octal banks independently; HIGH = high-impedance state. |
| 1A1–1A8, 2A1–2A8 | Port A data terminals | Bi-directional I/O pins; function as inputs or three-state outputs depending on DIR/OE state. |
| 1B1–1B8, 2B1–2B8 | Port B data terminals | Bi-directional I/O pins; mirror Port A behavior with opposite directionality per DIR setting. |
| VCC (Pins 24, 25, 47, 48) | Power supply | Four dedicated VCC pins reduce IR drop and improve noise rejection across wide bus. |
| GND (Pins 12, 13, 26, 27, 39, 40) | Ground reference | Six GND pins provide low-inductance return paths for all 16 drivers and internal logic. |
Key Features
| Feature | Design Value |
|---|---|
| Balanced ±24-mA output drivers | Enables direct driving of 50-Ω transmission lines without external series termination resistors. |
| Edge-rate control circuitry | Reduces EMI and crosstalk in high-density routing by limiting slew rate without compromising speed. |
| Ioff partial-power-down support | Prevents back-current when VCC = 0 V and I/O pins are driven externally - critical for hot-swap and multi-rail systems. |
| Typical output skew <250 ps | Ensures tight timing alignment across all 16 bits, minimizing setup/hold violations in synchronous buses. |
| ESD rating >2000 V | Meets human-body model (HBM) requirements for robust handling in manufacturing and field service. |
Applications
| Memory Interface Buffering | Industrial Backplane Driver |
|---|---|
|
Use Scenario: Bidirectional data transfer between microcontroller and SRAM/Flash memory banks with strict timing margins. IC Role / Device Role / Timing Role: Acts as a timing-transparent bus transceiver synchronizing read/write handshaking between CPU and memory subsystems. Use Value: 4.5-ns max propagation delay and <250-ps output skew preserve setup/hold timing across 16-bit data paths at 200-MHz clock rates. |
Use Scenario: Signal conditioning and level-shifting across modular chassis backplanes in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Provides isolated, noise-immune bidirectional communication between slot-mounted I/O modules and central controller. Use Value: ±24-mA drive strength and <0.6-V ground bounce ensure reliable signaling over 10-cm+ FR-4 traces without added termination or shielding. |
| High-Speed Bus Isolation | Legacy System Interfacing |
|
Use Scenario: Galvanically isolated data exchange between FPGA-based processing unit and legacy ASIC subsystem operating at different voltage domains. IC Role / Device Role / Timing Role: Serves as a 5-V tolerant, direction-controlled buffer enabling clean domain boundary crossing without signal degradation. Use Value: Ioff protection prevents latch-up when one side is powered down while the other remains active - essential for staged power sequencing. |
Use Scenario: Interfacing modern microcontrollers with legacy parallel peripherals (e.g., dot-matrix displays, printer controllers) requiring 5-V TTL-level signaling. IC Role / Device Role / Timing Role: Translates and buffers 16-bit parallel data streams while maintaining TTL-compatible voltage thresholds and drive capability. Use Value: 2.0-V VIH and 0.8-V VIL thresholds guarantee reliable recognition of legacy TTL logic levels, even under marginal noise conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162245CTPVC | Slower 4.1-ns max propagation delay; identical 24-mA drive, package, and pinout. | Better suited for cost-sensitive designs where tighter timing margins are unnecessary. | Select when design timing budget allows ≥0.4-ns relaxation versus CY74FCT162245ATPVC. |
| CY74FCT162H245ATPVC | Adds bus-hold on all data inputs; same speed, drive, and package but no external pull resistors required. | Preferred for floating-input scenarios (e.g., unpopulated daughter cards, hot-plug slots) where input stability is critical. | Choose only if bus-hold functionality is explicitly needed - adds no benefit in fully driven systems. |
Compared with CY74FCT162245CTPVC, the CY74FCT162245ATPVC delivers faster timing for high-throughput buses; compared with CY74FCT162H245ATPVC, it omits bus-hold to reduce input leakage and simplify biasing in actively driven topologies.
Availability
CY74FCT162245ATPVC is available at Aetrix Electronics and suitable for industrial backplane drivers, memory interface buffering, and legacy system interfacing requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for CY74FCT162245ATPVC 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 with decades of industrial-grade reliability validation.
The CY74FCT162245ATPVC belongs to TI's FCT logic family, engineered specifically for high-speed, low-noise bidirectional bus interfacing in industrial and telecom infrastructure equipment.
FAQ
What is the maximum operating frequency supported by CY74FCT162245ATPVC?
CY74FCT162245ATPVC does not specify a maximum clock frequency directly, but its 4.5-ns max propagation delay supports reliable operation in synchronous buses up to approximately 200 MHz (assuming 2× delay margin). Actual achievable frequency depends on board layout, load capacitance, and system timing constraints-not internal clock generation.
Does CY74FCT162245ATPVC support 3.3-V logic levels?
No. CY74FCT162245ATPVC is strictly a 5-V device with VCC = 5 V ±10% and TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max). It lacks 3.3-V tolerance and must be used in 5-V systems or with level-shifting circuitry for mixed-voltage interfaces.
Is CY74FCT162245ATPVC pin-compatible with CY74FCT16245ATPVC?
Yes. CY74FCT162245ATPVC and CY74FCT16245ATPVC share identical 48-pin SSOP packaging, pinout, and functional mapping. The key difference lies in output drive strength: CY74FCT162245ATPVC provides balanced ±24 mA, while CY74FCT16245ATPVC offers asymmetric 32-mA source / 64-mA sink capability.
What is the purpose of the Ioff feature in CY74FCT162245ATPVC?
The Ioff feature in CY74FCT162245ATPVC disables all outputs when VCC = 0 V, blocking current flow from live I/O lines into the unpowered device. This protects downstream circuitry during partial power-down sequences and enables safe hot-swap operation in modular systems.
Can CY74FCT162245ATPVC be used as two independent 8-bit transceivers?
Yes. CY74FCT162245ATPVC supports dual-octal operation using separate DIR and OE controls (1DIR/1OE for first octal, 2DIR/2OE for second). Each octal bank functions independently-enabling flexible partitioning of the 16-bit path for distinct data channels or protocol layers.
CY74FCT162245ATPVC 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:
- 24mA, 24mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
CY74FCT162245ATPVC FAQ
1.How can I place an order for CY74FCT162245ATPVC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT162245ATPVC 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 CY74FCT162245ATPVC reliable?
The price and inventory of CY74FCT162245ATPVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT162245ATPVC is usually 5 days.
3.What payment methods are accepted for CY74FCT162245ATPVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT162245ATPVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT162245ATPVC?
CY74FCT162245ATPVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT162245ATPVC 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 CY74FCT162245ATPVC?
For technical support, including CY74FCT162245ATPVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT162245ATPVC requirements.
6.How does Aetrix verify that CY74FCT162245ATPVC is sourced from the original manufacturer or authorized distributors?
All CY74FCT162245ATPVC 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 CY74FCT162245ATPVC meets industry standards.
7.What is the process for return or replacement of CY74FCT162245ATPVC?
All CY74FCT162245ATPVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT162245ATPVC, 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 CY74FCT162245ATPVC part is unused and in its original packaging.
Return procedure for CY74FCT162245ATPVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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