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Texas Instruments CY74FCT16244ATPVC
- Part No.:
- CY74FCT16244ATPVC
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16244ATPVC.pdf
- Description:
- IC BUF NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,399
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Product details
Overview
CY74FCT16244ATPVC from Texas Instruments is a 16-bit non-inverting three-state buffer/line driver designed for high-speed memory and bus interface applications. It features 64 mA sink / 32 mA source drive capability, Ioff partial-power-down support, typical output skew < 250 ps, and operates across –40°C to +85°C at VCC = 5V ±10%. It drives high-capacitance loads and low-impedance backplanes.
For engineers reviewing the CY74FCT16244ATPVC datasheet, CY74FCT16244ATPVC pinout, CY74FCT16244ATPVC application, or CY74FCT16244ATPVC equivalent, key selection criteria include output drive strength (64 mA sink), Ioff-enabled power-down protection, flow-through pinout for PCB layout simplification, and SSOP-48 packaging with 300-mil width.
Technical Context
This device implements four independent 4-bit groups of non-inverting buffers, each with dedicated active-low three-state enable (OE) inputs. Its Ioff circuitry disables outputs when VCC = 0 V, preventing backflow current during partial power-down sequences.
The CY74FCT16244ATPVC uses standard FCT logic architecture with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max), edge-rate control to reduce switching noise, and supports 4-bit, 8-bit, or full 16-bit bus operation via grouped OE controls.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - Ensures compatibility with legacy 5-V TTL and mixed-voltage systems. |
| Output Drive | 64 mA sink / 32 mA source - Sufficient to drive heavy capacitive loads (e.g., >100 pF) and unterminated backplanes without external termination. |
| Propagation Delay | 1.5–4.8 ns - Enables reliable operation in high-speed address/data bus applications up to ~200 MHz system timing. |
| Ioff Support | Active at VCC = 0 V - Allows safe insertion/removal in live backplane systems and prevents damage during hot-swap or partial power-down. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial environments including factory automation and telecom infrastructure. |
| Input Hysteresis | 100 mV - Improves noise immunity on slow-rising or noisy control lines such as board-level OE signals. |
| ESD Rating | >2000 V HBM - Provides robust handling tolerance during assembly and board-level integration. |
Pinout & Package
Package: 48-pin SSOP (O48), 300-mil body width, 25-mil pitch, JEDEC MO-153 compliant. Pin 1 marked by notch or dot; gull-wing leads, 1.2 mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data Inputs (Grouped) | Four independent 4-bit input banks; each group maps directly to corresponding Y outputs. |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | Three-State Outputs | Non-inverting buffered outputs; high-impedance when respective OE is HIGH. |
| 1OE, 2OE, 3OE, 4OE | Active-Low Output Enables | Per-group control enables flexible bus segmentation (e.g., 4-bit peripheral access or 8-bit memory lanes). |
| VCC (Pins 24, 48) | Power Supply | Dual VCC pins reduce supply inductance and improve noise margin across wide bus operation. |
| GND (Pins 25, 47) | Ground Reference | Dual ground pins provide low-inductance return path for high-current switching outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Ioff partial-power-down | Prevents damaging backflow current when VCC = 0 V - critical for hot-pluggable modules and power-gated subsystems. |
| Edge-rate control | Reduces simultaneous switching noise (SSN) and ground bounce (VOLP < 1.0 V @ 64 mA) - improves signal integrity on dense PCBs. |
| Flow-through pinout | Input–output alignment per group minimizes trace length and crosstalk - simplifies routing in 16-bit parallel buses. |
| Typical output skew < 250 ps | Ensures tight timing alignment across all 16 outputs - essential for synchronous data capture in memory interfaces. |
| Industrial temperature range | –40°C to +85°C operation validated - supports deployment in uncontrolled ambient environments like base stations and PLCs. |
Applications
| Memory Address Buffering | Backplane Data Driver |
|---|---|
Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Non-inverting buffer with per-group OE control isolates memory banks and eliminates contention during bank switching. Use Value: 64 mA sink capability ensures fast rise/fall times into 50–100 pF load capacitance; low skew preserves setup/hold timing margins. |
Use Scenario: Transmitting parallel data across a 16-bit passive backplane connecting CPU and I/O modules. IC Role / Device Role / Timing Role: High-current line driver maintaining signal integrity over 10+ inch traces with stubs. Use Value: Edge-rate control and low VOLP (<1.0 V) suppress ground bounce that would otherwise corrupt adjacent control lines. |
| Industrial Bus Interface | Legacy System Glue Logic |
Use Scenario: Interfacing a modern FPGA I/O bank (3.3 V tolerant) to legacy 5 V TTL peripherals in programmable logic controllers. IC Role / Device Role / Timing Role: Level-shifting buffer with Ioff protection during FPGA configuration or reset sequences. Use Value: Ioff prevents backfeed from powered peripherals into unpowered FPGA I/Os - avoids latch-up and damage. |
Use Scenario: Replacing obsolete 74ACT or 74AS logic in aging test equipment requiring drop-in 5 V compatibility. IC Role / Device Role / Timing Role: Pin-compatible upgrade delivering lower power, higher noise immunity, and extended temp range. Use Value: Identical SSOP-48 footprint and flow-through pinout allow direct replacement without PCB rework. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162244ATPVC | 24 mA balanced drive (sink/source), built-in current-limiting resistors, lower ground bounce (VOLP < 0.6 V). | Better suited for transmission-line driving with controlled impedance; less suitable for high-capacitance loads. | Select when driving controlled-impedance traces >10 cm or minimizing EMI in high-density layouts. |
| CY74FCT162H244ATPVC | 24 mA drive with bus-hold inputs - retains last logic state when inputs float. | Eliminates need for external pull-up/down resistors on unused or intermittently connected data lines. | Select when interfacing to connectors, switches, or hot-swappable modules where input floating is possible. |
Compared with CY74FCT162244ATPVC and CY74FCT162H244ATPVC, the CY74FCT16244ATPVC delivers highest sink current (64 mA) for driving heavy capacitive loads, but lacks bus-hold and uses unbalanced drive - making it optimal for backplane and memory buffering where raw drive strength matters most.
Availability
CY74FCT16244ATPVC is available at Aetrix Electronics and suitable for industrial bus interface, memory address buffering, and legacy system glue logic applications requiring stable component supply and long-term lifecycle support.
Supply support for CY74FCT16244ATPVC 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 broad industrial and automotive qualification.
The CY74FCT16244ATPVC belongs to TI's FCT logic family, engineered for high-speed, low-noise 5 V bus interfacing in industrial control, communications infrastructure, and legacy system upgrades.
FAQ
What is the maximum output sink current specification for CY74FCT16244ATPVC?
The CY74FCT16244ATPVC is rated for 64 mA maximum sink current per output pin under specified conditions (VCC = 5 V min, TA = 25°C). This value is guaranteed across the full industrial temperature range and enables reliable driving of high-capacitance loads and unterminated backplanes. The CY74FCT16244ATPVC maintains this drive strength while keeping VOL ≤ 0.55 V at 64 mA.
Does CY74FCT16244ATPVC support partial power-down operation?
Yes, CY74FCT16244ATPVC 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 characterized per JEDEC JESD78 and allows safe use in modular systems where subsystems power up/down independently - a key reliability advantage of the CY74FCT16244ATPVC.
What package type and dimensions does CY74FCT16244ATPVC use?
CY74FCT16244ATPVC uses a 48-pin SSOP (Shrunk Small Outline Package) with O48 designation, 300-mil body width, and 25-mil lead pitch. Its mechanical outline conforms to JEDEC MO-153, with overall dimensions of 12.6 × 6.2 mm and max height of 2.0 mm. This package provides proven manufacturability and thermal performance for industrial PCB assemblies using the CY74FCT16244ATPVC.
How does the flow-through pinout of CY74FCT16244ATPVC benefit PCB layout?
The CY74FCT16244ATPVC features a flow-through pinout where inputs and corresponding outputs are aligned on opposite sides of the package (e.g., 1A1–1A4 on left, 1Y1–1Y4 on right). This reduces trace length, minimizes crosstalk, and simplifies layer stacking in 16-bit parallel bus designs - directly improving signal integrity and easing layout validation for systems relying on the CY74FCT16244ATPVC as a core interface component.
What is the propagation delay range for CY74FCT16244ATPVC across temperature and voltage?
CY74FCT16244ATPVC guarantees propagation delay (tPLH/tPHL) between 1.5 ns (min) and 4.8 ns (max) over the full industrial range (–40°C to +85°C, VCC = 4.5 V to 5.5 V). Typical delay is 3.2 ns at VCC = 5.0 V and TA = 25°C. This consistent, low-latency performance makes the CY74FCT16244ATPVC suitable for timing-critical memory and bus applications where jitter and skew must be tightly controlled.
CY74FCT16244ATPVC 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:
- 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
CY74FCT16244ATPVC FAQ
1.How can I place an order for CY74FCT16244ATPVC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16244ATPVC 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 CY74FCT16244ATPVC reliable?
The price and inventory of CY74FCT16244ATPVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16244ATPVC is usually 5 days.
3.What payment methods are accepted for CY74FCT16244ATPVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16244ATPVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT16244ATPVC?
CY74FCT16244ATPVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16244ATPVC 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 CY74FCT16244ATPVC?
For technical support, including CY74FCT16244ATPVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16244ATPVC requirements.
6.How does Aetrix verify that CY74FCT16244ATPVC is sourced from the original manufacturer or authorized distributors?
All CY74FCT16244ATPVC 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 CY74FCT16244ATPVC meets industry standards.
7.What is the process for return or replacement of CY74FCT16244ATPVC?
All CY74FCT16244ATPVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16244ATPVC, 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 CY74FCT16244ATPVC part is unused and in its original packaging.
Return procedure for CY74FCT16244ATPVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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