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Texas Instruments CY74FCT16827CTPVC
- Part No.:
- CY74FCT16827CTPVC
- Manufacturer:
- Texas Instruments
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16827CTPVC.pdf
- Description:
- IC BUF NON-INVERT 5.5V 56SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,653
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Product details
Overview
CY74FCT16827CTPVC from Texas Instruments is a 20-bit non-inverting three-state buffer/line driver with dual 10-bit sections, each controlled by NANDed output-enable inputs (OE1/OE2). It delivers 64 mA sink and 32 mA source drive capability at 5V ±10%, supports partial-power-down via Ioff, and operates across −40°C to +85°C for industrial bus interface applications including backplane driving and wide data-path buffering.
For engineers reviewing the CY74FCT16827CTPVC datasheet, CY74FCT16827CTPVC pinout, CY74FCT16827CTPVC application, or CY74FCT16827CTPVC equivalent, key selection criteria include its 4.2 ns propagation delay (CL = 50 pF), <250 ps typical output skew, 0.55 V max VOL at 64 mA, and SSOP-56 package compatibility with high-capacitance load environments.
Technical Context
The CY74FCT16827CTPVC implements two independent 10-bit buffer sections, each with logically NANDed OE1/OE2 inputs enabling flexible enable control per section. Its FCT logic family ensures TTL-compatible input thresholds (VIH = 2.0 V, VIL = 0.8 V) and CMOS-level output swing (VOH ≥ 2.5 V at −32 mA).
Designed for high-noise-immunity operation, it integrates edge-rate control circuitry to suppress switching noise and limits ground bounce to <1.0 V (VOLP) at 5 V and 25°C. The Ioff feature actively disables outputs during power-down, blocking reverse current flow and protecting powered system segments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - Enables direct drop-in replacement in legacy 5-V TTL/CMOS systems without level-shifting. |
| tPLH / tPHL | 1.5–4.2 ns (CL = 50 pF) - Ensures sub-5 ns timing margin for 100+ MHz bus clocking in synchronous data transfer. |
| IOL / IOH | 64 mA sink / 32 mA source - Drives heavy capacitive loads (e.g., >100 pF traces or unterminated backplanes) without external buffers. |
| VOL / VOH | 0.2–0.55 V @ 64 mA / 2.0–3.5 V @ −32 mA - Guarantees robust logic-level margins under full drive conditions. |
| tPZH / tPZL | 1.5–5.6 ns (CL = 50 pF) - Supports fast enable/disable sequencing for dynamic bus arbitration and hot-swap readiness. |
| tSK(O) | ≤0.5 ns - Minimizes skew-induced timing jitter across all 20 outputs, critical for parallel data integrity. |
| Operating Temp | −40°C to +85°C - Qualified for continuous operation in industrial control cabinets and telecom line cards. |
| Ioff | ±1 µA @ VCC = 0 V - Prevents backflow current during partial power-down, satisfying IEC 61000-4-2 system-level ESD resilience requirements. |
Pinout & Package
Package: 56-pin SSOP (O56), 300-mil body width, 0.025-inch pitch, 1.2 mm max height - compatible with standard surface-mount reflow profiles and IPC-7351 land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A1–1A10, 2A1–2A10 | Data Inputs (20 total) | CMOS/TTL-compatible inputs accepting 0.8 V/2.0 V thresholds; internally terminated to GND/VCC when unused. |
| 1Y1–1Y10, 2Y1–2Y10 | Three-State Outputs (20 total) | Active-drive or high-impedance states controlled by OE; capable of 64 mA sink without latch-up. |
| 1OE1, 1OE2, 2OE1, 2OE2 | Output Enable Inputs (Active LOW) | NAND logic per 10-bit section: both OE low → outputs active; any OE high → outputs high-Z. |
| VCC (Pins 25, 36, 47) | Power Supply | Decoupling required at each pin; supports simultaneous switching of all 20 outputs without rail collapse. |
| GND (Pins 26, 37, 48, 56) | Ground Reference | Multiple low-inductance GND connections minimize ground bounce and ensure stable VOLP <1.0 V. |
Key Features
| Feature | Design Value |
|---|---|
| Ioff Partial-Power-Down Support | Enables safe integration into mixed-voltage systems where subsystems power up/down asynchronously without risk of damaging back-current. |
| Edge-Rate Controlled Outputs | Reduces EMI emissions and crosstalk in dense PCB layouts by limiting dV/dt without compromising propagation speed. |
| Low Ground Bounce (VOLP <1.0 V) | Maintains signal integrity during simultaneous switching of multiple outputs on shared ground planes. |
| High Drive Strength (64 mA sink) | Eliminates need for external buffer stages when driving long traces, connectors, or unterminated transmission lines. |
| Industrial Temperature Range | Validated operation from −40°C to +85°C ensures reliability in uncontrolled ambient environments like factory automation controllers. |
Applications
| Backplane Interface Buffering | Industrial PLC I/O Expansion |
|---|---|
|
Use Scenario: Driving 20-bit address/data buses across multi-slot VME or CompactPCI backplanes with >100 pF trace capacitance per line. IC Role / Device Role / Timing Role: Non-inverting three-state buffer providing level-consistent drive, skew-controlled timing, and hot-swap-safe isolation. Use Value: Eliminates timing violations caused by inter-slot skew and sustains signal integrity without external termination resistors. |
Use Scenario: Expanding digital I/O capacity in modular programmable logic controllers using ribbon-cable-connected I/O modules. IC Role / Device Role / Timing Role: Bus transceiver enabling bidirectional data latching between CPU and remote I/O banks via OE-controlled directionality. Use Value: Delivers deterministic 4.2 ns propagation delay and <0.5 ns output skew for synchronized sampling of 20-channel sensor inputs. |
| Legacy System Bus Extension | Test Equipment Signal Conditioning |
|
Use Scenario: Interfacing modern microcontrollers to legacy ISA or NuBus peripherals requiring 5-V TTL-compatible drive and three-state bus sharing. IC Role / Device Role / Timing Role: Voltage- and logic-family translator ensuring VIH/VIL compliance while maintaining bus contention safety. Use Value: Provides guaranteed 2.5 V VOH at −32 mA and 0.55 V VOL at 64 mA-meeting strict TTL input thresholds across temperature. |
Use Scenario: Conditioning parallel trigger and status signals in automated test equipment (ATE) racks handling multi-DUT synchronization. IC Role / Device Role / Timing Role: Skew-minimized fanout buffer distributing clock-aligned strobes and pass/fail flags to 20 DUT sites. Use Value: Achieves ≤0.5 ns inter-output skew and 5.6 ns max enable time-enabling sub-nanosecond timing correlation across DUT channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 20-bit buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162827CTPVC | 24 mA balanced drivers, lower ground bounce (VOLP <0.6 V), reduced switching noise | Better suited for transmission-line driving with controlled impedance; less ideal for high-current backplane loads | Select when minimizing EMI and undershoot is prioritized over maximum sink current. |
| SN74FCT16827CTPAG | Same logic function and timing, but in 56-pin TSSOP (Z56) package with 0.5 mm pitch | Requires different PCB footprint and stencil design; higher density layout possible | Choose for space-constrained designs where 240-mil TSSOP fits thermal/mechanical constraints better than 300-mil SSOP. |
Compared with CY74FCT162827CTPVC and SN74FCT16827CTPAG, the CY74FCT16827CTPVC offers superior current drive for heavy capacitive loads but trades off slightly higher ground bounce and no built-in current-limiting resistors-making it optimal for backplane and legacy bus applications rather than high-speed transmission lines or ultra-dense layouts.
Availability
CY74FCT16827CTPVC is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, legacy bus extension, and backplane interface buffering requiring stable component supply, long-term lifecycle support, and guaranteed SSOP-56 packaging consistency.
Supply support for CY74FCT16827CTPVC 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 delivering analog, embedded processing, and logic solutions with emphasis on reliability, industrial-grade qualification, and long-term product availability.
The CY74FCT16827CTPVC belongs to TI's FCT logic family-engineered specifically for robust 5-V bus interface applications demanding high drive strength, low skew, and partial-power-down safety in harsh industrial environments.
FAQ
What is the maximum output sink current specification for CY74FCT16827CTPVC?
The CY74FCT16827CTPVC is rated for 64 mA maximum sink current per output pin under DC conditions, verified at VCC = 4.5 V and TA = 25°C. This value is guaranteed across the full industrial temperature range and enables direct driving of high-capacitance loads without external buffers. The CY74FCT16827CTPVC maintains this rating while keeping VOL ≤ 0.55 V, ensuring reliable LOW-level logic margins.
Does CY74FCT16827CTPVC support partial-power-down operation?
Yes, CY74FCT16827CTPVC incorporates Ioff circuitry that disables all outputs when VCC = 0 V, limiting reverse current to ±1 µA. This feature allows safe integration into systems where other components remain powered while CY74FCT16827CTPVC is unpowered-preventing damage from back-current flow. The Ioff behavior is specified and tested per JEDEC standards.
What package type and dimensions does CY74FCT16827CTPVC use?
CY74FCT16827CTPVC uses a 56-pin SSOP (Shrunk Small Outline Package) with O56 designation: 300-mil body width, 0.025-inch lead pitch, and 1.2 mm maximum height. Its footprint matches JEDEC MO-153 and IPC-7351 guidelines, with recommended land pattern dimensions of 1.5 mm × 0.3 mm pads and 0.5 mm solder mask openings. Pin 1 is marked by a beveled corner.
How does the dual-OE architecture of CY74FCT16827CTPVC improve system flexibility?
CY74FCT16827CTPVC groups its 20-bit structure into two independent 10-bit sections, each with NANDed OE1/OE2 inputs. This allows either section to be enabled or disabled separately-supporting split-bus configurations, dynamic bandwidth allocation, or fault-isolation modes. For example, one 10-bit segment can drive address lines while the other handles data, with independent gating for power-aware operation.
What is the typical output skew performance of CY74FCT16827CTPVC, and why does it matter?
CY74FCT16827CTPVC guarantees ≤0.5 ns typical output skew between any two outputs switching in the same direction. This tight skew ensures simultaneous assertion of parallel bus signals-critical for setup/hold timing in synchronous interfaces like memory-mapped I/O or backplane data transfers. Low skew directly reduces timing margin erosion and prevents metastability in downstream latches.
CY74FCT16827CTPVC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 56-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 10
- 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:
- 56-SSOP
CY74FCT16827CTPVC FAQ
1.How can I place an order for CY74FCT16827CTPVC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16827CTPVC 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 CY74FCT16827CTPVC reliable?
The price and inventory of CY74FCT16827CTPVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16827CTPVC is usually 5 days.
3.What payment methods are accepted for CY74FCT16827CTPVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16827CTPVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT16827CTPVC?
CY74FCT16827CTPVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16827CTPVC 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 CY74FCT16827CTPVC?
For technical support, including CY74FCT16827CTPVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16827CTPVC requirements.
6.How does Aetrix verify that CY74FCT16827CTPVC is sourced from the original manufacturer or authorized distributors?
All CY74FCT16827CTPVC 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 CY74FCT16827CTPVC meets industry standards.
7.What is the process for return or replacement of CY74FCT16827CTPVC?
All CY74FCT16827CTPVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16827CTPVC, 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 CY74FCT16827CTPVC part is unused and in its original packaging.
Return procedure for CY74FCT16827CTPVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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