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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

Texas Instruments CY74FCT162827ATPVC

Name: CY74FCT162827ATPVC
Brand: Texas Instruments
SKU: CY74FCT162827ATPVC
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY74FCT162827ATPVC

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 56-BSSOP (0.295", 7.50mm Width)

Datasheet:: CY74FCT162827ATPVC.pdf

Description:: IC BUF NON-INVERT 5.5V 56SSOP

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Product details

Overview

CY74FCT162827ATPVC from Texas Instruments is a 20-bit non-inverting 3-state buffer/line driver with balanced 24 mA output drivers, I_off partial-power-down support, and optimized edge-rate control for transmission-line driving in industrial bus interfaces. It operates at 5V ±10%, delivers <0.6 V typical ground bounce (VOLP), and features 5 ns max propagation delay (A→Y, CL=50 pF) in a 56-pin SSOP package.

For engineers reviewing the CY74FCT162827ATPVC datasheet, CY74FCT162827ATPVC pinout, CY74FCT162827ATPVC application, or CY74FCT162827ATPVC equivalent, key selection criteria include its 24 mA balanced drive strength, sub-7 ns enable/disable timing, −40°C to +85°C industrial temperature range, and compatibility with high-speed parallel data/address buses requiring low-noise signal integrity.

Technical Context

This device implements dual 10-bit buffered paths, each controlled by a pair of NANDed active-low Output Enable (OE1/OE2) inputs-enabling flexible channel gating without external logic. Its I_off circuitry actively disables outputs during power-down, preventing backflow current when V_CC = 0 V.

The CY74FCT162827ATPVC uses integrated current-limiting resistors in 24 mA balanced output drivers to suppress undershoot and reduce reliance on external termination. Its edge-rate control minimizes simultaneous switching noise (SSN), and output skew is guaranteed ≤0.5 ns across all 20 outputs under identical switching conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Supply	5 V ±10% - compatible with standard TTL/CMOS logic rails and eliminates need for level-shifting in 5V systems.
Output Drive	±24 mA balanced - enables direct driving of 50 Ω transmission lines without external series resistors.
t_PLH/t_PHL	≤5.0 ns (CL = 50 pF) - supports >100 MHz bus operation with deterministic timing margins.
VOLP (Ground Bounce)	<0.6 V at V_CC = 5 V, T_A = 25°C - reduces noise coupling into adjacent signals and power rails.
I_off	±1 µA at V_CC = 0 V - prevents damaging back-current during hot-insertion or partial system power-down.
Operating Temp	−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 like OE.

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 automated assembly.

Pin/Terminal	Circuit Role	Design Meaning
1A1–1A10, 2A1–2A10	Data Inputs	20-bit parallel input bus; TTL/CMOS-compatible thresholds (V_IL ≤ 0.8 V, V_IH ≥ 2.0 V).
1Y1–1Y10, 2Y1–2Y10	3-State Outputs	20-bit buffered outputs with 24 mA drive; high-impedance state activated when OE1 and/or OE2 = HIGH.
1OE1, 1OE2, 2OE1, 2OE2	Active-Low Output Enables	NAND logic per 10-bit group: both OE inputs must be LOW to enable corresponding Y outputs.
V_CC (Pins 24, 37, 48)	Power Supply	Three distributed V_CC pins minimize IR drop and improve PSRR across wide bus operation.
GND (Pins 25, 36, 49, 56)	Ground	Four dedicated GND pins reduce ground bounce and stabilize reference for all 20 drivers.

Key Features

Feature	Design Value
Balanced 24 mA output drivers	Enables matched rise/fall times and eliminates need for external series termination on PCB traces.
Integrated edge-rate control	Reduces EMI and crosstalk in dense parallel bus layouts without sacrificing propagation speed.
I_off partial-power-down protection	Allows safe insertion/removal in live backplanes and prevents latch-up when V_CC is unpowered.
Guaranteed 0.5 ns output skew	Ensures deterministic timing alignment across all 20 outputs for synchronous bus capture.
Low ground bounce (<0.6 V)	Maintains signal integrity on shared power/ground planes during high-frequency switching events.

Applications

Industrial Backplane Interface	Memory Address Buffering
Use Scenario: Driving 20-bit address/data lines across a 12-inch FR-4 backplane with 50 Ω characteristic impedance. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing controlled edge rates and matched drive strength to maintain signal integrity at 80 MHz. Use Value: Eliminates external 33 Ω series resistors per line while holding ground bounce below 0.6 V and skew within 0.5 ns.	Use Scenario: Isolating and buffering CPU address bus to multiple SRAM banks in an industrial PLC controller. IC Role / Device Role / Timing Role: Dual 10-bit buffer enabling independent enable control per memory bank via NANDed OE pairs. Use Value: Supports hot-swap-safe memory expansion with I_off protection and <5 ns propagation delay for tight timing budgets.
Telecom Line Card Bus Driver	Test Equipment Data Path Interface
Use Scenario: Interfacing FPGA I/O to legacy TDM bus in carrier-grade line cards operating at −40°C to +85°C. IC Role / Device Role / Timing Role: High-noise-immunity buffer with 100 mV input hysteresis and robust ESD (>2000 V) for field-replaceable modules. Use Value: Delivers stable 24 mA drive across full temperature range without derating, reducing board-level filtering requirements.	Use Scenario: Routing parallel test vectors between ATE pattern generator and DUT interface in automated test systems. IC Role / Device Role / Timing Role: Low-skew, low-glitch buffer ensuring synchronized 20-bit vector delivery with sub-7 ns enable/disable latency. Use Value: Enables precise timing correlation between stimulus and response measurements, critical for parametric yield analysis.

Industrial Backplane Interface

Memory Address Buffering

Use Scenario: Driving 20-bit address/data lines across a 12-inch FR-4 backplane with 50 Ω characteristic impedance.

IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing controlled edge rates and matched drive strength to maintain signal integrity at 80 MHz.

Use Value: Eliminates external 33 Ω series resistors per line while holding ground bounce below 0.6 V and skew within 0.5 ns.

Use Scenario: Isolating and buffering CPU address bus to multiple SRAM banks in an industrial PLC controller.

IC Role / Device Role / Timing Role: Dual 10-bit buffer enabling independent enable control per memory bank via NANDed OE pairs.

Use Value: Supports hot-swap-safe memory expansion with I_off protection and <5 ns propagation delay for tight timing budgets.

Telecom Line Card Bus Driver

Test Equipment Data Path Interface

Use Scenario: Interfacing FPGA I/O to legacy TDM bus in carrier-grade line cards operating at −40°C to +85°C.

IC Role / Device Role / Timing Role: High-noise-immunity buffer with 100 mV input hysteresis and robust ESD (>2000 V) for field-replaceable modules.

Use Value: Delivers stable 24 mA drive across full temperature range without derating, reducing board-level filtering requirements.

Use Scenario: Routing parallel test vectors between ATE pattern generator and DUT interface in automated test systems.

IC Role / Device Role / Timing Role: Low-skew, low-glitch buffer ensuring synchronized 20-bit vector delivery with sub-7 ns enable/disable latency.

Use Value: Enables precise timing correlation between stimulus and response measurements, critical for parametric yield analysis.

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	4.2 ns max t_PLH/t_PHL (vs. 5.0 ns); same 24 mA drive, I_off, and package.	Suitable where tighter propagation delay is required for >120 MHz bus timing closure.	Select when design requires guaranteed sub-4.5 ns delay with identical noise and power-down behavior.
SN74ALVCH162827GR	3.3 V only (1.65–3.6 V), 24 mA drive, no I_off, 56-pin TSSOP (Z56).	Targeted at low-voltage mixed-signal systems; lacks partial-power-down capability.	Choose only for 3.3 V domains where I_off is not needed and layout accommodates TSSOP footprint.

Compared with CY74FCT162827CTPVC, the CY74FCT162827ATPVC trades 0.8 ns of speed margin for broader availability and cost efficiency in industrial 5V systems; versus SN74ALVCH162827GR, it provides essential I_off and 5V compatibility but requires voltage-domain isolation in mixed-supply designs.

Availability

CY74FCT162827ATPVC is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory subsystem buffering, telecom line card designs, and automated test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CY74FCT162827ATPVC 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 expertise in high-reliability industrial and automotive ICs.

The CY74FCT162827ATPVC belongs to TI's FCT logic family-designed specifically for noise-sensitive, high-speed 5V bus interfacing in industrial control, communications infrastructure, and test instrumentation.

FAQ

What is the maximum clock frequency supported by CY74FCT162827ATPVC in a 20-bit bus application?

CY74FCT162827ATPVC is not a clocked device-it has no internal clock and functions as a combinatorial buffer. Its 5.0 ns max propagation delay (A→Y, CL = 50 pF) supports reliable operation in asynchronous 20-bit data/address buses running up to 100–120 MHz, assuming proper PCB layout, termination, and timing margin allocation. The CY74FCT162827ATPVC datasheet specifies no maximum frequency limit because it is level-sensitive, not edge-triggered.

Does CY74FCT162827ATPVC support hot-swap operation in live backplanes?

Yes, CY74FCT162827ATPVC supports hot-swap operation via its I_off circuitry, which limits off-state leakage to ±1 µA when V_CC = 0 V. This prevents damaging back-current flow from powered bus lines into the unpowered device, making CY74FCT162827ATPVC suitable for field-replaceable modules in telecom and industrial backplanes where live insertion is required.

What is the purpose of the NANDed OE inputs (1OE1/1OE2 and 2OE1/2OE2) on CY74FCT162827ATPVC?

The NANDed OE structure means each 10-bit output group (1Y1–1Y10 or 2Y1–2Y10) activates only when both corresponding OE inputs are LOW. This allows CY74FCT162827ATPVC to function as either a single 20-bit buffer (tie all OEs LOW) or two independent 10-bit buffers (control OE pairs separately), increasing routing flexibility and reducing need for external gating logic in complex bus architectures.

Can CY74FCT162827ATPVC replace CY74FCT16827ATPVC in existing designs?

No-CY74FCT162827ATPVC and CY74FCT16827ATPVC are not functionally interchangeable. CY74FCT16827ATPVC provides 64 mA sink / 32 mA source drive and targets high-capacitance loads, while CY74FCT162827ATPVC delivers balanced ±24 mA drive optimized for transmission-line termination. Their output characteristics, noise behavior, and drive architecture differ fundamentally; substituting one for the other risks signal integrity failure or excessive ground bounce.

What package variants are available for CY74FCT162827ATPVC, and is there a TSSOP option?

CY74FCT162827ATPVC is specified exclusively in the 56-pin SSOP (O56) package with 300-mil body width and 0.025-inch pitch. While other speed grades of CY74FCT162827 (e.g., 'C' and 'B') offer TSSOP (Z56) variants, the 'A' speed grade-including CY74FCT162827ATPVC-is only available in SSOP per TI's official ordering information. No TSSOP variant exists for CY74FCT162827ATPVC.

CY74FCT162827ATPVC 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:: 24mA, 24mA

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 56-SSOP

CY74FCT162827ATPVC FAQ

1.How can I place an order for CY74FCT162827ATPVC through Aetrix?

Please submit a Request for Quotation (RFQ) for CY74FCT162827ATPVC 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 CY74FCT162827ATPVC reliable?

The price and inventory of CY74FCT162827ATPVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT162827ATPVC is usually 5 days.

3.What payment methods are accepted for CY74FCT162827ATPVC?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT162827ATPVC transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY74FCT162827ATPVC?

CY74FCT162827ATPVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY74FCT162827ATPVC 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 CY74FCT162827ATPVC?

For technical support, including CY74FCT162827ATPVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT162827ATPVC requirements.

6.How does Aetrix verify that CY74FCT162827ATPVC is sourced from the original manufacturer or authorized distributors?

All CY74FCT162827ATPVC 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 CY74FCT162827ATPVC meets industry standards.

7.What is the process for return or replacement of CY74FCT162827ATPVC?

All CY74FCT162827ATPVC units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT162827ATPVC, 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 CY74FCT162827ATPVC part is unused and in its original packaging.

Return procedure for CY74FCT162827ATPVC:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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