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Texas Instruments CY74FCT16827ATPVCT
- Part No.:
- CY74FCT16827ATPVCT
- Manufacturer:
- Texas Instruments
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT16827ATPVCT.pdf
- Description:
- IC BUF NON-INVERT 5.5V 56SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,230
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Product details
Overview
CY74FCT16827ATPVCT from Texas Instruments is a 20-bit non-inverting 3-state buffer/line driver with dual 10-bit sections, 8.0 ns propagation delay (CL = 50 pF), ±10% 5V supply tolerance, and industrial temperature range (−40°C to +85°C); it drives high-capacitance backplanes in data/address bus interface applications.
For engineers reviewing the CY74FCT16827ATPVCT datasheet, CY74FCT16827ATPVCT pinout, CY74FCT16827ATPVCT application, or CY74FCT16827ATPVCT equivalent, key selection criteria include output drive strength (64 mA sink / 32 mA source), ground bounce performance (VOLP < 1.0 V), Ioff partial-power-down support, and SSOP-56 package compatibility for legacy board layouts.
Technical Context
The CY74FCT16827ATPVCT implements two independent 10-bit buffer sections, each with NANDed active-low output enable inputs (OE1/OE2) enabling flexible channel grouping. Its TTL-compatible input thresholds (VIH = 2.0 V, VIL = 0.8 V) and hysteresis (100 mV) ensure noise immunity in noisy industrial environments.
It features edge-rate control circuitry to suppress switching noise, delivers typical output skew < 250 ps, and supports Ioff protection to prevent backflow current during partial power-down-critical for hot-swap and mixed-voltage system designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 5 V ± 10% - operates reliably across 4.5 V–5.5 V, compatible with standard 5V logic rails |
| Propagation Delay | 8.0 ns max (CL = 50 pF) - ensures timing margin for 125 MHz bus operation |
| Output Drive | 64 mA sink / 32 mA source - sufficient to drive 50 Ω transmission lines or high-C loads without external buffers |
| Ground Bounce (VOLP) | < 1.0 V at VCC = 5 V, TA = 25°C - minimizes signal integrity degradation during simultaneous switching |
| Ioff Support | Enabled - prevents damaging current flow when VCC = 0 V and I/O pins are biased, essential for live-insertion systems |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded and automation equipment |
| Input Hysteresis | 100 mV - improves noise rejection on slow-rising or noisy control signals like OE |
Pinout & Package
Package: 56-pin SSOP (O56), 300-mil body width, 25-mil pitch, 1.2 mm max height - compatible with legacy industrial PCB footprints and reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A1–1A10, 2A1–2A10 | Data Inputs | 20 total TTL-compatible inputs accepting 0.8 V / 2.0 V thresholds; each paired with corresponding Y output |
| 1Y1–1Y10, 2Y1–2Y10 | Three-State Outputs | 20 buffered, non-inverting outputs with 64 mA sink capability; high-impedance when OE asserted |
| 1OE1, 1OE2, 2OE1, 2OE2 | Active-Low Output Enables | NAND logic per 10-bit section - enables either full 20-bit or split 10-bit operation with independent control |
| VCC (Pins 25, 36, 48) | Power Supply | Three distributed VCC pins reduce IR drop and improve power delivery stability across wide bus |
| GND (Pins 26, 37, 49) | Ground | Three dedicated GND pins minimize ground bounce and provide low-inductance return paths |
Key Features
| Feature | Design Value |
|---|---|
| Ioff Partial-Power-Down Protection | Disables outputs and blocks reverse current when VCC = 0 V - enables safe hot-swap in modular backplane systems |
| Edge-Rate Controlled Outputs | Reduces EMI and crosstalk by limiting slew rate - eliminates need for external series resistors in most backplane designs |
| Low Ground Bounce (VOLP) | < 1.0 V under full 20-bit switching - preserves signal integrity on shared ground planes in dense digital systems |
| Dual 10-Bit Section Architecture | Independent OE pairs allow asymmetric buffering - e.g., 10-bit address + 10-bit data with separate timing control |
| TTL-Compatible Input Thresholds | VIH = 2.0 V, VIL = 0.8 V - ensures interoperability with legacy 5V microcontrollers, FPGAs, and ASICs without level shifters |
Applications
| Industrial Backplane Interface | Legacy Microprocessor Bus Extension |
|---|---|
Use Scenario: Interfacing a 20-bit local bus (e.g., from an 80C188 or similar controller) to a long, high-capacitance passive backplane with multiple slot connectors. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing drive strength, noise suppression, and OE-controlled isolation between master and peripheral slots. Use Value: Eliminates signal reflections and ground bounce-induced glitches across 30 cm+ traces, enabling reliable 25 MHz bus operation without termination resistors. | Use Scenario: Extending the data/address bus of a vintage industrial PLC CPU module to add memory-mapped I/O expansion cards. IC Role / Device Role / Timing Role: Bidirectional bus repeater with independent 10-bit enable control, allowing selective activation of memory vs. I/O segments. Use Value: Maintains strict 8.0 ns propagation delay budget while supporting hot-plug insertion of expansion modules via Ioff-enabled isolation. |
| Automated Test Equipment (ATE) Signal Conditioning | High-Noise Factory Floor Controller Interface |
Use Scenario: Driving 20 parallel test signals from a pattern generator FPGA to DUT sockets with >100 pF per line capacitance. IC Role / Device Role / Timing Role: Low-skew, high-current line driver ensuring simultaneous edge alignment across all 20 channels. Use Value: Achieves <250 ps output skew and <1.0 V VOLP, guaranteeing setup/hold compliance at 100 MHz test clock rates. | Use Scenario: Buffering sensor data and control outputs between a central motion controller and distributed I/O terminals in a steel mill environment. IC Role / Device Role / Timing Role: Industrial-grade interface IC with hysteresis-enhanced inputs and robust ESD (>2000 V) surviving repeated electrostatic discharge events. Use Value: Sustains error-free operation despite 0.5–2 V common-mode noise on long cable runs, validated over −40°C to +85°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 20-bit buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY74FCT162827ATPVCT | Balanced 24 mA drivers, lower VOLP (<0.6 V), reduced switching noise | Better suited for transmission-line driving; less ideal for high-sink backplane loads | Select when minimizing ground bounce dominates over raw sink current capability |
| SN74FCT162827CTPVCT | 4.2 ns propagation delay, TSSOP-56 package, same drive specs as CY74FCT162827T | Higher speed but incompatible pinout and package; requires PCB redesign | Choose only if timing budget demands sub-5 ns delay and layout revision is feasible |
Compared with CY74FCT162827ATPVCT, the CY74FCT16827ATPVCT offers higher sink current for heavy capacitive loads but greater ground bounce; versus SN74FCT162827CTPVCT, it trades speed for SSOP-56 footprint compatibility and industrial thermal robustness.
Availability
CY74FCT16827ATPVCT is available at Aetrix Electronics and suitable for industrial backplane interfaces, legacy microprocessor bus extensions, and automated test equipment requiring stable component supply and long-term obsolescence management.
Supply support for CY74FCT16827ATPVCT 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 for industrial, automotive, and communications markets.
The CY74FCT logic family was engineered for high-speed, low-noise 5V bus interfacing in industrial control and computing systems - emphasizing robustness, timing predictability, and compatibility with legacy TTL/CMOS designs.
FAQ
What is the maximum propagation delay specification for CY74FCT16827ATPVCT?
The CY74FCT16827ATPVCT has a maximum propagation delay of 8.0 ns under standard test conditions (CL = 50 pF, RL = 500 Ω). This value applies across the full industrial temperature range (−40°C to +85°C) and ensures timing compliance in 20-bit synchronous bus applications up to 125 MHz. The CY74FCT16827ATPVCT datasheet confirms this limit in the "Switching Characteristics" table.
Does CY74FCT16827ATPVCT support partial power-down operation?
Yes, CY74FCT16827ATPVCT includes Ioff circuitry that disables outputs and blocks reverse current when VCC = 0 V, enabling safe partial-power-down operation. This feature protects the device and upstream circuitry during hot-swap events or mixed-voltage system sequencing. The CY74FCT16827ATPVCT functional description explicitly states Ioff support for such applications.
What package type and dimensions does CY74FCT16827ATPVCT use?
CY74FCT16827ATPVCT uses a 56-pin SSOP (Shrunk Small Outline Package) with O56 designation, 300-mil body width, 25-mil lead pitch, and 1.2 mm maximum height. Its mechanical drawing (TI package code DL) specifies 13.9–14.1 mm length, 6.0–6.2 mm width, and 1.2 mm max profile - matching legacy industrial PCB footprints. The CY74FCT16827ATPVCT ordering information confirms "O56" package type.
How much output current can CY74FCT16827ATPVCT sink and source per pin?
CY74FCT16827ATPVCT provides 64 mA sink current and 32 mA source current per output pin under specified conditions (VCC = 4.5 V min, TA = 25°C). These values are confirmed in the "CY74FCT16827T Features" section and electrical characteristics tables. The CY74FCT16827ATPVCT is rated for continuous operation within these limits across its industrial temperature range.
Is CY74FCT16827ATPVCT pin-compatible with CY74FCT162827ATPVCT?
No, CY74FCT16827ATPVCT is not pin-compatible with CY74FCT162827ATPVCT. Although both use 56-pin SSOP packages, their internal logic architectures differ: CY74FCT16827ATPVCT uses unbalanced drivers (64 mA sink) and dual-NAND OE structure, while CY74FCT162827ATPVCT employs balanced 24 mA drivers and different OE implementation. The CY74FCT16827ATPVCT pin configuration diagram and functional description confirm distinct signal routing and terminal assignments.
CY74FCT16827ATPVCT 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
CY74FCT16827ATPVCT FAQ
1.How can I place an order for CY74FCT16827ATPVCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT16827ATPVCT 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 CY74FCT16827ATPVCT reliable?
The price and inventory of CY74FCT16827ATPVCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT16827ATPVCT is usually 5 days.
3.What payment methods are accepted for CY74FCT16827ATPVCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT16827ATPVCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT16827ATPVCT?
CY74FCT16827ATPVCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT16827ATPVCT 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 CY74FCT16827ATPVCT?
For technical support, including CY74FCT16827ATPVCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT16827ATPVCT requirements.
6.How does Aetrix verify that CY74FCT16827ATPVCT is sourced from the original manufacturer or authorized distributors?
All CY74FCT16827ATPVCT 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 CY74FCT16827ATPVCT meets industry standards.
7.What is the process for return or replacement of CY74FCT16827ATPVCT?
All CY74FCT16827ATPVCT units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT16827ATPVCT, 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 CY74FCT16827ATPVCT part is unused and in its original packaging.
Return procedure for CY74FCT16827ATPVCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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