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Texas Instruments CY74FCT162244ATPVC
- Part No.:
- CY74FCT162244ATPVC
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT162244ATPVC.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,751
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Product details
Overview
CY74FCT162244ATPVC from Texas Instruments is a 16-bit non-inverting three-state buffer/line driver with balanced 24-mA output drivers, designed for high-speed transmission-line driving in memory and bus interface applications. It operates at VCC = 5V ±10%, supports –40°C to +85°C industrial temperature range, features Ioff partial-power-down protection, and delivers typical VOL < 0.55V at 24-mA sink current.
For engineers reviewing the CY74FCT162244ATPVC datasheet, CY74FCT162244ATPVC pinout, CY74FCT162244ATPVC application, or CY74FCT162244ATPVC equivalent, key selection criteria include its 4.8-ns max propagation delay, 24-mA balanced drive strength, low ground bounce (<0.6V), flow-through pinout for PCB layout simplification, and SSOP-48 package compatibility with legacy 300-mil footprint designs.
Technical Context
This device implements four independent 4-bit groups of non-inverting buffers, each controlled by dedicated active-low OE inputs (1OE–4OE), enabling flexible 4-bit, 8-bit, or full 16-bit bus operation. Its output drivers integrate internal current-limiting resistors to reduce system switching noise and minimize need for external termination.
The Ioff circuitry ensures outputs are high-impedance when VCC = 0V, preventing backflow current during partial power-down. Edge-rate control limits slew rate to suppress EMI, while typical output skew < 250 ps supports tightly timed parallel data paths in synchronous bus systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5V ±10% - compatible with standard TTL/CMOS logic rails and eliminates need for voltage translation |
| Propagation Delay | Max 4.8 ns - enables reliable operation in 100+ MHz bus systems with margin for trace delays |
| Output Drive | ±24 mA - balanced sourcing/sinking capability supports terminated transmission lines without external resistors |
| Ground Bounce | <0.6V at VCC=5V, TA=25°C - reduces signal integrity risk in dense multi-driver PCB layouts |
| Input Hysteresis | 100 mV - improves noise immunity on slow-rising or noisy control signals like OE lines |
| Ioff Support | Active at VCC = 0V - allows safe hot-insertion and mixed-voltage domain isolation in modular systems |
| ESD Rating | >2000V HBM - meets industrial handling requirements without additional protection circuitry |
Pinout & Package
Package: 48-pin SSOP (O48), 300-mil body width, 0.025-inch pitch, 1.2-mm max height - compatible with standard surface-mount reflow profiles and legacy SSOP footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low three-state enable inputs | Independent control per 4-bit group enables segmented bus arbitration and power-gated subsystems |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data inputs (16 total) | Flow-through arrangement aligns inputs and outputs on opposite sides for straight PCB routing |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | Three-state buffered outputs (16 total) | High-drive outputs support direct connection to 50-Ω transmission lines or high-capacitance backplanes |
| VCC (Pins 24, 48) | Power supply | Dual VCC pins reduce IR drop and improve noise rejection across wide bus widths |
| GND (Pins 1, 12, 25, 36) | Ground reference | Four GND pins provide low-inductance return paths for all 16 drivers, minimizing ground bounce |
Key Features
| Feature | Design Value |
|---|---|
| Balanced ±24-mA output drivers | Eliminates need for external series termination resistors on point-to-point or daisy-chained transmission lines |
| Edge-rate control circuitry | Reduces radiated emissions and crosstalk in high-density digital systems without sacrificing speed |
| Ioff partial-power-down support | Prevents damaging current flow when CY74FCT162244ATPVC is unpowered but connected to live buses |
| Flow-through pinout | Enables single-layer trace routing between connectors and memory controllers, cutting layout time and layer count |
| Industrial temperature range | Validated operation from –40°C to +85°C supports deployment in factory automation, telecom infrastructure, and transportation electronics |
Applications
| Memory Interface Buffering | Backplane Signal Distribution |
|---|---|
Use Scenario: Driving address/data lines between FPGA and SRAM/Flash in embedded control modules. IC Role / Device Role / Timing Role: Non-inverting 16-bit buffer providing level-shifting, fanout expansion, and timing margin via 4.8-ns propagation delay. Use Value: Enables clean signal edges on 10–20 cm traces without termination, reducing BOM cost and board area vs. discrete resistor networks. |
Use Scenario: Distributing clock or control signals across multi-slot industrial backplanes with >30 pF load capacitance. IC Role / Device Role / Timing Role: High-current line driver maintaining signal integrity under heavy capacitive loading and shared ground return paths. Use Value: Delivers stable 24-mA drive into 50-Ω lines, suppressing reflections and ensuring setup/hold compliance at 80-MHz bus rates. |
| Hot-Swappable Module Interface | Legacy Bus Isolation |
Use Scenario: Interfacing hot-pluggable I/O modules to a powered main controller chassis. IC Role / Device Role / Timing Role: Three-state buffer with Ioff protection isolating unpowered module sections from live backplane voltages. Use Value: Prevents backfeed current damage during insertion/removal, eliminating need for complex power-sequencing circuitry. |
Use Scenario: Bridging 5-V TTL logic domains to newer 3.3-V microcontrollers in equipment upgrades. IC Role / Device Role / Timing Role: Level-tolerant buffer accepting 3.3-V or 5-V inputs while driving 5-V loads with rail-aligned output swing. Use Value: Maintains VIH/VIL compatibility across voltage domains without external level shifters or pull-up resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162244CTPVC | 4.1-ns max propagation delay; otherwise identical electrical specs and pinout | Better timing margin for >100-MHz synchronous buses | Select when tighter tPLH/tPHL is required; same PCB layout and thermal profile |
| SN74FCT162244ATPAG | TSSOP-48 (Z48) package; 0.5-mm pitch vs. SSOP's 0.635-mm; identical speed and drive | Higher density layout; requires updated stencil and reflow profile | Choose for space-constrained designs where footprint reduction outweighs rework cost |
Compared with CY74FCT162244CTPVC, the CY74FCT162244ATPVC trades 0.7 ns of speed for broader process margin and lower dynamic current; versus SN74FCT162244ATPAG, it retains legacy SSOP compatibility while delivering identical signal integrity performance in less demanding routing environments.
Availability
CY74FCT162244ATPVC is available at Aetrix Electronics and suitable for memory interface buffering, backplane signal distribution, hot-swappable module interfaces, and legacy bus isolation requiring stable component supply and long-term industrial lifecycle support.
Supply support for CY74FCT162244ATPVC 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 heritage in high-reliability industrial and automotive ICs.
The CY74FCT162244ATPVC belongs to TI's FCT logic family, engineered specifically for noise-sensitive, high-speed bus interface applications where balanced drive strength, low ground bounce, and partial-power-down safety are critical design requirements.
FAQ
What is the maximum operating frequency supported by CY74FCT162244ATPVC?
The CY74FCT162244ATPVC does not specify a maximum clock frequency directly, but its 4.8-ns maximum propagation delay enables reliable use in bus systems operating up to approximately 100 MHz-assuming trace delays and setup/hold margins are accounted for in the system-level timing budget. The device is optimized for burst-mode or asynchronous data transfers rather than continuous clocked operation.
Does CY74FCT162244ATPVC support mixed-voltage operation between 3.3-V and 5-V logic domains?
CY74FCT162244ATPVC accepts 3.3-V TTL-compatible inputs (VIH = 2.0V min) and outputs full 5-V swing (VOH ≥ 2.4V at –24 mA), making it suitable as a unidirectional level translator from 3.3-V controllers to 5-V peripherals. However, it is not bidirectional and requires external direction control; input hysteresis enhances noise immunity on marginal 3.3-V signals.
How does the Ioff feature function in CY74FCT162244ATPVC during partial power-down?
In CY74FCT162244ATPVC, the Ioff circuitry actively disables all outputs when VCC = 0V, forcing them into high-impedance state regardless of OE or input states. This prevents current backflow from live system buses into the unpowered device, protecting both CY74FCT162244ATPVC and upstream drivers-a critical safeguard in hot-swap and modular power architectures.
Can CY74FCT162244ATPVC replace CY74FCT16244ATPVC in an existing design?
CY74FCT162244ATPVC is not a direct replacement for CY74FCT16244ATPVC due to differing output drive strengths: the latter provides 64-mA sink / 32-mA source, while CY74FCT162244ATPVC offers balanced ±24-mA. Substitution may cause undershoot/overshoot issues on unterminated lines or fail to drive low-impedance loads; verify signal integrity and load conditions before interchange.
What package variants are available for CY74FCT162244ATPVC besides the SSOP-48?
CY74FCT162244ATPVC is exclusively offered in the 48-pin SSOP (O48) package per TI's official ordering information. Alternate speed grades like CY74FCT162244CTPVC share the same SSOP-48, while the TSSOP-48 variant (e.g., CY74FCT162244ATPACT) uses a different part number and 0.5-mm pitch-making it mechanically incompatible with CY74FCT162244ATPVC's 0.635-mm SSOP footprint.
CY74FCT162244ATPVC 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:
- Buffer, Non-Inverting
- Number of Elements:
- 4
- Number of Bits per Element:
- 4
- 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
CY74FCT162244ATPVC FAQ
1.How can I place an order for CY74FCT162244ATPVC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT162244ATPVC 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 CY74FCT162244ATPVC reliable?
The price and inventory of CY74FCT162244ATPVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT162244ATPVC is usually 5 days.
3.What payment methods are accepted for CY74FCT162244ATPVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT162244ATPVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT162244ATPVC?
CY74FCT162244ATPVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT162244ATPVC 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 CY74FCT162244ATPVC?
For technical support, including CY74FCT162244ATPVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT162244ATPVC requirements.
6.How does Aetrix verify that CY74FCT162244ATPVC is sourced from the original manufacturer or authorized distributors?
All CY74FCT162244ATPVC 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 CY74FCT162244ATPVC meets industry standards.
7.What is the process for return or replacement of CY74FCT162244ATPVC?
All CY74FCT162244ATPVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT162244ATPVC, 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 CY74FCT162244ATPVC part is unused and in its original packaging.
Return procedure for CY74FCT162244ATPVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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