Texas Instruments CY74FCT16827CTPVCT
- Part No.:
- CY74FCT16827CTPVCT
- Manufacturer:
- Texas Instruments
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16827CTPVCT.pdf
- Description:
- IC BUF NON-INVERT 5.5V 56SSOP
- Quantity:
- Payment:

- Shipping:

Inventory:3,357
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Product details
Overview
CY74FCT16827CTPVCT from Texas Instruments is a 20-bit non-inverting three-state buffer/line driver with dual 10-bit sections, each featuring NANDed output-enable inputs (OE1/OE2), 64 mA sink / 32 mA source drive capability, <4.2 ns propagation delay (CL = 50 pF), and operation across −40°C to +85°C at VCC = 5V ±10%. It is used for high-speed bus interface buffering in industrial backplane and wide-data-path systems.
For engineers reviewing the CY74FCT16827CTPVCT datasheet, CY74FCT16827CTPVCT pinout, CY74FCT16827CTPVCT application, or CY74FCT16827CTPVCT equivalent, key selection criteria include output drive strength (64 mA sink), low ground bounce (<1.0 V), Ioff partial-power-down support, and SSOP-56 package compatibility with high-density PCB layouts.
Technical Context
The CY74FCT16827CTPVCT implements two independent 10-bit buffer sections, each controlled by a pair of active-low NANDed OE inputs-enabling flexible enable logic per section. Its FCT-family TTL-compatible inputs accept 2.0 V VIH and 0.8 V VIL thresholds, while outputs drive 50-pF loads with sub-5 ns timing and <0.5 ns output skew.
It features Ioff circuitry that disables outputs and blocks current backflow during partial power-down, and edge-rate control that reduces system switching noise. The device is not designed for transmission-line termination; that role is assigned to the balanced 24-mA-output CY74FCT162827T variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 5 V ±10% - compatible with standard TTL/CMOS 5-V systems without regulation overhead |
| Propagation Delay | 1.5–4.2 ns (CL = 50 pF) - enables >200 MHz data throughput on short traces |
| Output Drive | 64 mA sink / 32 mA source - sufficient to drive heavy capacitive loads (e.g., 100+ pF backplanes) |
| Ground Bounce (VOLP) | <1.0 V at VCC = 5 V, TA = 25°C - minimizes logic errors during simultaneous switching |
| Ioff Support | Yes - prevents damaging back-current when VCC = 0 V and I/O pins are biased externally |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade embedded and control applications |
| ESD Rating | >2000 V HBM - provides robust handling in manufacturing and field environments |
Pinout & Package
Package: 56-pin SSOP (O56), 300-mil body width, 0.025-inch pitch, 1.2 mm max height. RoHS-compliant, MSL-1 rated.
| 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 pulled via bus-hold not specified |
| 1Y1–1Y10, 2Y1–2Y10 | Three-State Outputs (20 total) | Active-HIGH non-inverting outputs; high-impedance when OE asserted; 64 mA sink capable |
| 1OE1, 1OE2, 2OE1, 2OE2 | Output Enable Inputs (active LOW, NANDed per section) | Each 10-bit section enabled only when both OE pins are LOW; supports hierarchical bus gating |
| VCC (Pins 25, 36, 47) | Power Supply | Single 5-V supply; three distributed pins reduce IR drop and improve noise immunity |
| GND (Pins 12, 24, 35, 46, 56) | Ground | Five dedicated GND pins minimize ground bounce and provide low-inductance return paths |
Key Features
| Feature | Design Value |
|---|---|
| Ioff Partial-Power-Down | Enables safe hot-insertion and mixed-voltage board designs by blocking reverse current flow when unpowered |
| Edge-Rate Control | Reduces EMI and crosstalk in dense routing environments without requiring external series resistors |
| Low Output Skew | <250 ps typical skew between any two outputs ensures deterministic timing alignment across 20-bit buses |
| Dual 10-Bit Sectioning | Allows independent enable control of two 10-bit segments-ideal for split address/data or parity bus architectures |
| Industrial Temperature Range | Validated operation from −40°C to +85°C supports deployment in factory automation, motor drives, and telecom line cards |
Applications
| Industrial Backplane Interface | High-Density Data Bus Buffering |
|---|---|
|
Use Scenario: Driving 20-bit parallel address/data buses across multi-slot industrial backplanes with >50 pF trace capacitance. IC Role / Device Role / Timing Role: Non-inverting three-state buffer providing level translation, fanout expansion, and timing-controlled bus isolation. Use Value: 64 mA sink drive ensures signal integrity into heavy capacitive loads; <4.2 ns delay maintains setup/hold margins at 100+ MHz clock rates. |
Use Scenario: Isolating and buffering CPU-to-peripheral data paths in programmable logic controllers (PLCs) with strict EMI limits. IC Role / Device Role / Timing Role: Dual-section bus driver enabling independent gating of upper/lower data nibbles during DMA transfers. Use Value: NANDed OE architecture allows hierarchical enable control; edge-rate control cuts radiated emissions by >6 dB compared to standard FCT buffers. |
| Automated Test Equipment (ATE) Fixture Logic | Legacy System Bus Extender |
|
Use Scenario: Interfacing FPGA-based pattern generators to DUT boards with mixed-voltage (3.3 V/5 V) signaling domains. IC Role / Device Role / Timing Role: Level-tolerant buffer with Ioff protection, preventing damage during hot-swap test head insertion. Use Value: Ioff specification guarantees no back-current when DUT power is off but tester signals remain active-eliminating need for external isolation switches. |
Use Scenario: Extending 16/20-bit ISA or VMEbus segments in retrofitted industrial control cabinets with aging motherboard traces. IC Role / Device Role / Timing Role: High-drive buffer compensating for increased trace impedance and capacitance in legacy copper runs. Use Value: VOLP <1.0 V prevents false triggering on adjacent lines; 20-bit channel coherence avoids data skew-induced CRC errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 20-bit buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162827CTPVCT | Balanced 24 mA output drivers; lower ground bounce (<0.6 V); optimized for transmission-line driving | Better suited for point-to-point or stub-free bus topologies; less ideal for high-capacitance multidrop backplanes | Select when minimizing undershoot and matching 50-Ω lines is prioritized over raw sink current |
| SN74FCT162827CTPVCT | Same pinout and function; TI-branded variant with identical electrical specs and SSOP-56 packaging | No functional difference; branding and ordering code differ per manufacturer sourcing policy | Drop-in alternative if Cypress-sourced CY prefix is unavailable; verify marking and lot traceability per OEM requirements |
Compared with CY74FCT16827CTPVCT, CY74FCT162827CTPVCT trades higher sink current for tighter output balance and lower noise-making it preferable for clean signal integrity, while SN74FCT162827CTPVCT offers identical performance under TI's product branding and supply chain.
Availability
CY74FCT16827CTPVCT is available at Aetrix Electronics and suitable for industrial backplane interfaces, automated test equipment fixtures, PLC data path buffering, and legacy bus extension requiring stable component supply and long-term lifecycle support.
Supply support for CY74FCT16827CTPVCT 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 company delivering analog and embedded processing solutions, with leadership in industrial, automotive, and communications markets since 1930.
The CY74FCT16827CTPVCT belongs to TI's FCT logic family-designed specifically for high-speed, low-noise, industrial-grade bus interface applications where drive strength, timing predictability, and power-down safety are critical.
FAQ
What is the maximum output sink current rating for CY74FCT16827CTPVCT?
The CY74FCT16827CTPVCT is rated for 64 mA maximum sink current per output pin under steady-state conditions, verified at VCC = 4.5 V and TA = 25°C. This rating enables reliable driving of high-capacitance backplane traces and multiple TTL inputs without external buffering. The CY74FCT16827CTPVCT maintains this drive strength across its full industrial temperature range.
Does CY74FCT16827CTPVCT support partial power-down operation?
Yes, CY74FCT16827CTPVCT includes Ioff circuitry that disables all outputs and blocks current backflow when VCC = 0 V, even if input or output pins are biased to valid logic levels. This feature is fully characterized per JEDEC JESD78 and supports hot-plug and mixed-supply system designs without risk of latch-up or damage.
What package type and dimensions does CY74FCT16827CTPVCT use?
CY74FCT16827CTPVCT uses a 56-pin SSOP (Shrunk Small Outline Package), designated O56, with 300-mil body width, 0.025-inch lead pitch, and 1.2 mm maximum height. Pin 1 is marked by a beveled corner; the package complies with JEDEC MO-153 and is RoHS-compliant with MSL-1 reflow rating.
How does the dual OE architecture of CY74FCT16827CTPVCT improve bus control flexibility?
CY74FCT16827CTPVCT divides its 20-bit array into two independent 10-bit sections, each with two active-low OE inputs (OE1/OE2) wired as a NAND gate. This allows either section to be enabled only when both OE signals are LOW-supporting hierarchical gating, priority arbitration, or fault-isolation schemes without external logic. The CY74FCT16827CTPVCT thus reduces board-level gate count in complex bus architectures.
What is the typical ground bounce (VOLP) performance of CY74FCT16827CTPVCT?
The CY74FCT16827CTPVCT exhibits typical ground bounce (VOLP) of less than 1.0 V at VCC = 5 V and TA = 25°C under full-output switching conditions. This low VOLP-achieved via internal edge-rate control and distributed GND pins-prevents false logic transitions on adjacent signals and improves noise margin in high-speed digital systems using the CY74FCT16827CTPVCT.
CY74FCT16827CTPVCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 56-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
CY74FCT16827CTPVCT FAQ
1.How can I place an order for CY74FCT16827CTPVCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16827CTPVCT 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 CY74FCT16827CTPVCT reliable?
The price and inventory of CY74FCT16827CTPVCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16827CTPVCT is usually 5 days.
3.What payment methods are accepted for CY74FCT16827CTPVCT?
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CY74FCT16827CTPVCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16827CTPVCT 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 CY74FCT16827CTPVCT?
For technical support, including CY74FCT16827CTPVCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16827CTPVCT requirements.
6.How does Aetrix verify that CY74FCT16827CTPVCT is sourced from the original manufacturer or authorized distributors?
All CY74FCT16827CTPVCT 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 CY74FCT16827CTPVCT meets industry standards.
7.What is the process for return or replacement of CY74FCT16827CTPVCT?
All CY74FCT16827CTPVCT units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16827CTPVCT, 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 CY74FCT16827CTPVCT part is unused and in its original packaging.
Return procedure for CY74FCT16827CTPVCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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