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Texas Instruments CY74FCT827ATSOC
- Part No.:
- CY74FCT827ATSOC
- Manufacturer:
- Texas Instruments
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT827ATSOC.pdf
- Description:
- IC BUF NON-INVERT 5.25V 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,959
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Product details
Overview
CY74FCT827ATSOC from Texas Instruments is a 10-bit noninverting bus buffer with dual 3-state output enables (OE1, OE2), designed for high-capacitance-load data/address bus interfacing in industrial and telecom systems. It delivers 64-mA sink / 32-mA source drive strength, operates at 4.75–5.25 V, and features Ioff partial-power-down protection and edge-rate control for noise suppression.
For engineers reviewing the CY74FCT827ATSOC datasheet, CY74FCT827ATSOC pinout, CY74FCT827ATSOC application, or CY74FCT827ATSOC equivalent, key selection criteria include its SOIC-24 package, 8 ns max propagation delay (CL = 50 pF), matched rise/fall times, TTL-compatible input thresholds, and guaranteed operation from –40°C to +85°C.
Technical Context
The CY74FCT827ATSOC implements dual NAND-gated 3-state enables for independent control of all 10 outputs, enabling flexible bus arbitration in multi-master systems. Its FCT-family architecture ensures full TTL-level compatibility on both inputs and outputs while maintaining CMOS-like low input current and high noise immunity.
Edge-rate control circuitry actively limits slew rate to reduce simultaneous switching noise (SSN), and the Ioff feature disables outputs and blocks current backflow when VCC = 0 V-critical for hot-swap and partial-power-down designs. All 10 Y outputs exhibit matched tPLH/tPHL and low capacitive loading (Ci = 5–10 pF, Co = 9–12 pF) in high-Z state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.75–5.25 V - Ensures stable operation across industrial-grade voltage tolerances without external regulation. |
| Output Drive | 64 mA sink / 32 mA source - Supports direct driving of heavy capacitive buses (≥50 pF) without external buffers. |
| Propagation Delay | 1.5–8 ns (CL = 50 pF) - Enables reliable timing in 100+ MHz bus systems with margin for setup/hold. |
| Ioff Current | ±1 µA at VCC = 0 V - Prevents damaging backfeed current during power sequencing or hot insertion. |
| Input Thresholds | VIL = 0.8 V, VIH = 2.0 V - Fully compatible with standard TTL logic families without level-shifting. |
| ESD Protection | 2000-V HBM, 200-V MM, 1000-V CDM - Meets JEDEC JESD22-A114/A115/C101 for robust board-level handling. |
| Operating Temperature | –40°C to +85°C - Qualified for extended industrial environments including base station and control cabinet applications. |
Pinout & Package
CY74FCT827ATSOC is housed in a 24-pin SOIC (DW) package per JEDEC MS-013, with 0.300-inch body width, 1.27-mm pitch, and RoHS-compliant NiPdAu lead finish. Thermal resistance θJA = 46°C/W supports continuous operation at full drive load without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 | D0–D9 | Data inputs - Accept TTL/CMOS logic levels; low input capacitance (5–10 pF) minimizes bus loading. |
| 11, 12 | OE1, OE2 | Active-low 3-state enables - NANDed logic allows either enable low to activate all 10 outputs simultaneously. |
| 13 | GND | Ground reference - Dedicated power return path; decoupling capacitor placement critical for noise control. |
| 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 | Y0–Y9 | Buffered outputs - Drive-strength-matched, edge-rate-controlled, with low-Z active and high-Z disabled states. |
| 24 | VCC | Power supply - Must be bypassed locally (0.1 µF ceramic + 4.7 µF tantalum) to suppress switching transients. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 3-state enables (OE1/OE2) | Enables independent bus arbitration or split-bus control without external logic gates. |
| Ioff partial-power-down support | Prevents current backflow when VCC is off-essential for hot-plug PCIe carriers and modular backplanes. |
| Edge-rate controlled outputs | Reduces EMI and ground bounce in dense PCB layouts with multiple parallel drivers. |
| TTL-compatible input thresholds | Eliminates need for level shifters when interfacing legacy microcontrollers or ASICs with TTL outputs. |
| Matched rise/fall times | Minimizes duty-cycle distortion on clock or strobe signals routed through the buffer path. |
Applications
| Telecom Line Card Bus Interface | Industrial PLC Backplane Driver |
|---|---|
Use Scenario: Driving 10-bit address/data lines between FPGA and legacy memory or peripheral ICs on a carrier card with shared bus topology. IC Role / Device Role / Timing Role: Bidirectional bus buffer with 3-state isolation, providing signal integrity and contention avoidance during bus arbitration. Use Value: 64-mA sink capability ensures clean edges into 50-pF trace + connector loads; Ioff prevents power rail coupling during FPGA reconfiguration. |
Use Scenario: Isolating CPU-local bus segments from distributed I/O modules in a modular programmable logic controller rack. IC Role / Device Role / Timing Role: Unidirectional data path buffer with dual OE control, enabling selective module activation without bus contention. Use Value: Edge-rate control reduces radiated emissions in noisy factory environments; –40°C to +85°C rating guarantees uptime in unconditioned control cabinets. |
| Automotive Diagnostic Gateway Buffer | Test Equipment Data Path Isolator |
Use Scenario: Level-shifting and buffering diagnostic command streams between 3.3-V microcontroller and 5-V legacy ECU interface circuits. IC Role / Device Role / Timing Role: TTL-compatible voltage translator and driver, ensuring signal fidelity across mixed-voltage subsystem boundaries. Use Value: VIH = 2.0 V and VOL ≤ 0.55 V guarantee robust logic recognition despite automotive supply ripple; ESD ratings exceed ISO 10605 requirements. |
Use Scenario: Protecting ATE instrument digital I/O channels from overvoltage or latch-up during device under test (DUT) power-up sequences. IC Role / Device Role / Timing Role: High-Z isolation gate with fast disable (tPZL ≤ 13 ns), preventing backdrive during DUT initialization. Use Value: Ioff < ±1 µA eliminates leakage paths during DUT power cycling; matched tPLH/tPHL preserves test pattern timing integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT827ATSOCT | Tape-and-reel packaging (2000 pcs/reel); identical electrical specs and pinout. | Suitable for automated SMT production; same thermal and timing behavior as CY74FCT827ATSOC. | Select for high-volume assembly where reel feed compatibility is required. |
| CY74FCT827CTSOC | Faster 4.4 ns max propagation delay; lower drive (32-mA sink / 12-mA source). | Better for low-noise, low-power applications where drive strength is secondary to speed. | Choose when system timing budget is tight but bus load is light (<20 pF). |
Compared with CY74FCT827ATSOCT, CY74FCT827ATSOC offers identical performance in tube packaging for prototyping and low-volume builds; versus CY74FCT827CTSOC, it trades speed for higher drive strength and noise resilience-making it optimal for industrial backplanes and telecom line cards.
Availability
CY74FCT827ATSOC is available at Aetrix Electronics and suitable for industrial PLC backplanes, telecom line card interfaces, and automotive diagnostic gateways requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CY74FCT827ATSOC 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 interface and bus technology.
The CY74FCT827ATSOC belongs to TI's FCT logic family-designed specifically for robust, noise-immune bus interfacing in industrial, telecom, and automotive systems where signal integrity and power sequencing resilience are critical.
FAQ
What is the maximum operating temperature range for CY74FCT827ATSOC?
CY74FCT827ATSOC is rated for continuous operation from –40°C to +85°C ambient temperature. This range is validated per TI's production test flow and supports deployment in industrial enclosures, telecom base stations, and automotive under-hood diagnostic modules where thermal margins are constrained.
Does CY74FCT827ATSOC support hot-swap or partial-power-down operation?
Yes, CY74FCT827ATSOC includes Ioff circuitry that disables all outputs and limits reverse current to ±1 µA when VCC = 0 V. This feature enables safe insertion/removal in live backplanes and prevents power rail contamination during staged power-up sequences-key for modular server and test equipment designs.
What is the pinout configuration of CY74FCT827ATSOC and how does it differ from CY74FCT827ATQCT?
CY74FCT827ATSOC uses a 24-pin SOIC (DW) package with pin 1 at top-left, D0–D9 on left side, OE1/OE2/GND on bottom row, Y0–Y9 on right side, and VCC at top-right. CY74FCT827ATQCT uses an identical pinout but in a 24-pin SSOP (DBQ) package-mechanically incompatible but electrically and functionally interchangeable.
Can CY74FCT827ATSOC drive a 100-pF bus load reliably?
CY74FCT827ATSOC is characterized up to 300-pF load (tPLH/tPHL ≤ 17 ns), so it drives 100-pF loads with margin. At CL = 100 pF, typical propagation delay remains <12 ns with VOL ≤ 0.55 V and VOH ≥ 2.4 V-ensuring timing closure and noise margin in high-density routing scenarios.
Is CY74FCT827ATSOC RoHS compliant and what is its moisture sensitivity level?
Yes, CY74FCT827ATSOC is RoHS compliant with NiPdAu lead finish and carries MSL Level-1 (unlimited floor life at ≤30°C/60% RH). Its SOIC-24 package requires no baking prior to reflow, simplifying manufacturing and reducing process risk in high-mix SMT lines.
CY74FCT827ATSOC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 10
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SOIC
CY74FCT827ATSOC FAQ
1.How can I place an order for CY74FCT827ATSOC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT827ATSOC 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 CY74FCT827ATSOC reliable?
The price and inventory of CY74FCT827ATSOC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT827ATSOC is usually 5 days.
3.What payment methods are accepted for CY74FCT827ATSOC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT827ATSOC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT827ATSOC?
CY74FCT827ATSOC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT827ATSOC 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 CY74FCT827ATSOC?
For technical support, including CY74FCT827ATSOC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT827ATSOC requirements.
6.How does Aetrix verify that CY74FCT827ATSOC is sourced from the original manufacturer or authorized distributors?
All CY74FCT827ATSOC 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 CY74FCT827ATSOC meets industry standards.
7.What is the process for return or replacement of CY74FCT827ATSOC?
All CY74FCT827ATSOC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT827ATSOC, 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 CY74FCT827ATSOC part is unused and in its original packaging.
Return procedure for CY74FCT827ATSOC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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