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Texas Instruments CY74FCT16244ATPVCT
- Part No.:
- CY74FCT16244ATPVCT
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16244ATPVCT.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,267
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Product details
Overview
CY74FCT16244ATPVCT from Texas Instruments is a 16-bit non-inverting three-state buffer/line driver designed for high-speed memory and bus interface applications. It delivers 64 mA sink and 32 mA source drive capability, supports partial-power-down via Ioff, operates at VCC = 5V ±10%, and features typical output skew <250 ps. It is used in industrial backplane driving where low ground bounce (<1.0V) and fast propagation delay (1.5–4.8 ns) are critical.
For engineers reviewing the CY74FCT16244ATPVCT datasheet, CY74FCT16244ATPVCT pinout, CY74FCT16244ATPVCT application, or CY74FCT16244ATPVCT equivalent, key selection criteria include its 48-pin SSOP package, industrial temperature range (–40°C to +85°C), Ioff-enabled power-down protection, balanced drive strength, and compatibility with TTL-level inputs and 5-V systems.
Technical Context
This device implements four independent 4-bit non-inverting buffers, each with dedicated active-low three-state enable (OE). Its flow-through pinout simplifies PCB layout for parallel bus routing. The Ioff circuitry ensures outputs remain high-impedance during power-down, preventing backflow current when VCC = 0 V.
Edge-rate control circuitry limits slew rate to reduce system-level switching noise and ground bounce. Propagation delays (tPLH/tPHL) are guaranteed ≤4.8 ns over full industrial temperature and voltage range, with output skew ≤0.5 ns between any two outputs switching in the same direction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - compatible with standard TTL/5-V logic rails without level translation |
| Output Drive | 64 mA sink / 32 mA source - sufficient to drive high-capacitance loads and unterminated backplanes |
| Propagation Delay | 1.5–4.8 ns - enables timing-critical bus buffering up to ~200 MHz effective data rates |
| Output Skew | <0.5 ns - ensures deterministic parallel signal alignment across all 16 outputs |
| Ioff Support | Enabled - prevents damaging current flow during partial power-down, critical for hot-swap or multi-rail systems |
| Ground Bounce (VOLP) | <1.0 V at VCC = 5 V, TA = 25°C - reduces noise coupling into adjacent signals and power rails |
| ESD Rating | >2000 V HBM - meets industrial robustness requirements without external protection |
Pinout & Package
Package: 48-pin SSOP (O48), 300-mil body width, 0.5-mm pitch, 1.2-mm max height. RoHS-compliant, MSL Level 3 per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 (Pins 1–4, 7–10, 13–16, 19–22) | Data Inputs | Four groups of 4-bit buffered inputs; each group maps to corresponding Y outputs |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 (Pins 25–28, 31–34, 37–40, 43–46) | Three-State Outputs | Non-inverting buffered outputs; high-impedance when respective OE is HIGH |
| 1OE, 2OE, 3OE, 4OE (Pins 5, 11, 17, 41) | Active-Low Output Enables | Independent control per 4-bit group; allows 4-bit, 8-bit, or full 16-bit bus operation |
| VCC (Pins 24, 48) | Power Supply | Dual VCC pins reduce supply inductance and improve noise immunity across wide bus |
| GND (Pins 23, 47) | Ground | Dual ground pins provide low-inductance return path for high-current switching outputs |
Key Features
| Feature | Design Value |
|---|---|
| Ioff partial-power-down support | Enables safe operation in mixed-voltage or hot-plug systems by disabling outputs when VCC = 0 V |
| Edge-rate controlled outputs | Reduces simultaneous switching noise (SSN) and EMI, improving signal integrity on dense PCBs |
| Flow-through pinout | Minimizes trace length and layer transitions-ideal for compact, high-density bus routing |
| Industrial temperature range | –40°C to +85°C operation ensures reliability in embedded control, instrumentation, and telecom infrastructure |
| High sink/source drive | 64 mA sink capability eliminates need for external drivers when interfacing to heavy capacitive loads |
Applications
| Memory Interface Buffering | Backplane Signal Distribution |
|---|---|
|
Use Scenario: Driving address/data buses between microcontroller and SRAM/Flash in industrial PLC modules. IC Role / Device Role / Timing Role: Non-inverting 16-bit buffer providing level-consistent, low-skew signal extension with Ioff isolation during processor reset. Use Value: Eliminates timing violations caused by capacitive loading; enables reliable 16-bit parallel access at >20 MHz clock rates. |
Use Scenario: Fan-out of clock or control signals across multi-slot industrial backplanes. IC Role / Device Role / Timing Role: High-drive line driver ensuring signal integrity across long traces with multiple stubs and connectors. Use Value: 64 mA sink current maintains logic thresholds under 50–100 pF load; edge-rate control suppresses crosstalk-induced jitter. |
| Legacy Bus Interface | Test Equipment Signal Conditioning |
|
Use Scenario: Interfacing modern FPGA I/O to legacy 5-V TTL peripherals (e.g., ISA-style expansion cards). IC Role / Device Role / Timing Role: Voltage-compatible buffer translating between 3.3-V FPGA outputs and 5-V bus receivers. Use Value: TTL-input thresholds (VIH = 2.0 V, VIL = 0.8 V) ensure robust logic recognition; 4.8 ns max delay preserves setup/hold margins. |
Use Scenario: Signal conditioning stage in automated test equipment (ATE) channel drivers. IC Role / Device Role / Timing Role: Precision-controlled output driver enabling repeatable edge placement and minimal inter-channel skew. Use Value: 0.5 ns output skew guarantees sub-nanosecond synchronization across 16 test channels for timing-critical measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162244ATPVCT | 24 mA balanced drive (sink/source), lower ground bounce (<0.6 V), no Ioff | Better suited for transmission-line driving with termination; not suitable for partial-power-down systems | Select when minimizing SSN on controlled-impedance lines is prioritized over high-current drive or Ioff |
| CY74FCT162H244ATPVCT | 24 mA drive with bus-hold inputs, eliminates need for external pull-up/down resistors | Preferred for floating-bus or hot-swap scenarios where input state retention is required | Select when input signal integrity on unterminated or intermittently connected buses is critical |
Compared with CY74FCT162244ATPVCT and CY74FCT162H244ATPVCT, the CY74FCT16244ATPVCT uniquely combines highest drive strength (64 mA sink), Ioff support, and industrial-grade noise control-making it optimal for high-load, multi-rail, and backplane-critical designs where other variants trade off drive or power-down capability.
Availability
CY74FCT16244ATPVCT is available at Aetrix Electronics and suitable for industrial control systems, test equipment signal distribution, and legacy bus interface applications requiring stable component supply, long-term lifecycle support, and verified RoHS compliance.
Supply support for CY74FCT16244ATPVCT 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 CY74FCT16244ATPVCT belongs to TI's FCT logic family-designed specifically for high-speed, low-noise 5-V bus interface applications in industrial, telecom, and instrumentation systems.
FAQ
What is the maximum operating frequency supported by CY74FCT16244ATPVCT?
CY74FCT16244ATPVCT does not specify a maximum clock frequency directly, but its 4.8 ns maximum propagation delay (tPLH/tPHL) and 0.5 ns output skew support reliable operation in 16-bit parallel buses running at effective data rates up to ~200 MHz. System-level timing must account for board trace delays and load capacitance, but the device itself is commonly deployed in 25–100 MHz synchronous bus interfaces.
Does CY74FCT16244ATPVCT support hot-swap or partial-power-down operation?
Yes, CY74FCT16244ATPVCT includes Ioff circuitry that disables outputs when VCC = 0 V, preventing damaging current backflow during partial-power-down or hot-swap events. This feature is fully specified over the industrial temperature range and is a defining characteristic distinguishing it from non-Ioff variants like CY74FCT162244ATPVCT.
What is the pin-compatible alternative to CY74FCT16244ATPVCT in TSSOP package?
CY74FCT16244ATPACT is the TSSOP (Z48) variant of the same device-identical logic, timing, and electrical specs-but in a 240-mil, 0.5-mm pitch thin shrink small-outline package. Both share identical pinout, function table, and thermal characteristics; only package dimensions and moisture sensitivity level differ.
How does CY74FCT16244ATPVCT handle ground bounce compared to other FCT buffers?
CY74FCT16244ATPVCT specifies typical VOLP (ground bounce) <1.0 V at VCC = 5 V and TA = 25°C-higher than the 0.6 V of CY74FCT162244ATPVCT due to its higher drive strength. However, its integrated edge-rate control circuitry actively limits slew rate to mitigate peak noise, making it more predictable under heavy capacitive loads than non-controlled alternatives.
Can CY74FCT16244ATPVCT be used with 3.3-V input logic levels?
Yes, CY74FCT16244ATPVCT accepts TTL-compatible inputs: VIH = 2.0 V minimum and VIL = 0.8 V maximum. Since 3.3-V CMOS outputs typically exceed 2.0 V for HIGH and fall below 0.8 V for LOW, they interface reliably without level shifters-confirmed by TI's application guidance for mixed-voltage FCT systems.
CY74FCT16244ATPVCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- 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
CY74FCT16244ATPVCT FAQ
1.How can I place an order for CY74FCT16244ATPVCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16244ATPVCT 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 CY74FCT16244ATPVCT reliable?
The price and inventory of CY74FCT16244ATPVCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16244ATPVCT is usually 5 days.
3.What payment methods are accepted for CY74FCT16244ATPVCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16244ATPVCT transactions.
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4.How is shipping managed for CY74FCT16244ATPVCT?
CY74FCT16244ATPVCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16244ATPVCT 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 CY74FCT16244ATPVCT?
For technical support, including CY74FCT16244ATPVCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16244ATPVCT requirements.
6.How does Aetrix verify that CY74FCT16244ATPVCT is sourced from the original manufacturer or authorized distributors?
All CY74FCT16244ATPVCT 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 CY74FCT16244ATPVCT meets industry standards.
7.What is the process for return or replacement of CY74FCT16244ATPVCT?
All CY74FCT16244ATPVCT units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16244ATPVCT, 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 CY74FCT16244ATPVCT part is unused and in its original packaging.
Return procedure for CY74FCT16244ATPVCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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