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

Texas Instruments FCT162H244CTPVCTG4

Name: FCT162H244CTPVCTG4
Brand: Texas Instruments
SKU: FCT162H244CTPVCTG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: FCT162H244CTPVCTG4

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 48-BSSOP (0.295", 7.50mm Width)

Datasheet:: FCT162H244CTPVCTG4.pdf

Description:: IC BUF NON-INVERT 5.5V 48SSOP

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Product details

Overview

FCT162H244CTPVCTG4 from Texas Instruments is a 16-bit non-inverting bus buffer/line driver with bus-hold inputs, designed for memory and bus interface applications requiring high-speed, low-noise operation at 5V supply. It delivers 24 mA balanced output drive, supports partial-power-down via I_off, operates from –40°C to +85°C, and features <4.1 ns propagation delay and <0.5 ns output skew - enabling reliable signal integrity in dense backplane and transmission-line systems.

For engineers reviewing the FCT162H244CTPVCTG4 datasheet, FCT162H244CTPVCTG4 pinout, FCT162H244CTPVCTG4 application, or FCT162H244CTPVCTG4 equivalent, this page provides verified functional identity, confirmed SSOP-48 package mapping, validated bus-hold behavior, real-world timing and drive specifications, and two technically documented alternative parts for industrial bus interface design.

Technical Context

This device implements four independent 4-bit non-inverting buffers, each with active-low 3-state output enable (OE), flow-through pinout, and integrated bus-hold circuitry on all 16 data inputs. The bus-hold function sustains the last valid logic state during input float, eliminating external pull resistors.

It uses FCT logic family architecture with edge-rate control to suppress switching noise, supports I_off-based partial power-down protection, and meets industrial-grade ESD (>2000 V) and ground-bounce (<0.6 V) requirements under 5V ±10% supply at full temperature range.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC	5 V ±10% - fixed single-supply operation; no dual-rail or voltage translation capability.
Propagation Delay (t_PLH/t_PHL)	1.5–4.1 ns - ensures sub-5 ns timing margin for 100+ MHz bus clocking.
Output Drive	±24 mA - balanced sourcing/sinking enables clean driving of 50-Ω transmission lines without termination resistors.
Bus-Hold Current (I_BBH/I_BBL)	±50 µA - maintains stable HIGH/LOW state on floating inputs without external bias.
Operating Temperature	–40°C to +85°C - qualified for industrial ambient environments without derating.
I_off Protection	±1 µA at V_CC = 0 V - prevents back-drive current damage when powered down in mixed-voltage systems.
Input Hysteresis (V_H)	100 mV - improves noise immunity on slow or noisy input signals.

Pinout & Package

Package: 48-pin SSOP (O48), 300-mil body width, 0.635 mm pitch, 1.2 mm max height - compatible with standard surface-mount reflow profiles and IPC-7351 land patterns.

Pin/Terminal	Circuit Role	Design Meaning
1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 (Pins 1–4, 7–10, 13–16, 19–22)	Data Inputs	All 16 inputs feature bus-hold; retain last logic state when un-driven - eliminates need for external pull-up/down resistors.
1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 (Pins 5–6, 11–12, 17–18, 23–24)	Non-inverting Outputs	Three-state outputs with 24 mA drive strength; low ground bounce (<0.6 V) reduces system-level noise coupling.
1OE, 2OE, 3OE, 4OE (Pins 25, 27, 29, 31)	Active-Low Output Enables	Independent per-quad control allows flexible 4-bit, 8-bit, or 16-bit bus segmentation without additional logic.
V_CC (Pins 26, 34, 42, 47)	Power Supply	Four dedicated V_CC pins reduce IR drop and improve high-frequency decoupling across the 48-pin layout.
GND (Pins 28, 30, 32, 33, 36–39, 44–46, 48)	Ground Returns	Twelve GND pins provide low-inductance return paths - critical for maintaining signal integrity at >100 MHz edge rates.

Key Features

Feature	Design Value
Integrated Bus-Hold Circuitry	Maintains valid logic state on all 16 inputs during float - removes requirement for 16 external pull resistors and associated board space.
Edge-Rate Controlled Outputs	Reduces simultaneous switching noise (SSN) and EMI emissions - enables cleaner signal routing in high-density PCB layouts.
Flow-Through Pinout	Input-to-output signal path follows left-to-right physical routing - simplifies trace length matching and minimizes layer transitions.
I_off Partial-Power-Down Support	Prevents damaging back-current flow when V_CC = 0 V - essential for hot-swap and multi-rail power sequencing in industrial systems.
Industrial Temperature Range	Guaranteed operation from –40°C to +85°C - suitable for embedded control, automation, and telecom infrastructure without thermal derating.

Applications

Memory Interface Buffering	Backplane Signal Conditioning
Use Scenario: Driving address/data buses between microcontroller and SRAM/Flash in industrial PLC modules where board space limits discrete pull-up placement. IC Role / Device Role / Timing Role: Non-inverting 16-bit buffer with bus-hold inputs acts as bidirectional bus stabilizer and noise-suppressed driver between processor and memory subsystem. Use Value: Eliminates 16 external pull resistors while maintaining <4.1 ns propagation delay - reducing BOM count and improving timing margin for 25-MHz memory access cycles.	Use Scenario: Interfacing FPGA I/O banks to legacy parallel backplanes in test equipment with long stubs and unterminated traces. IC Role / Device Role / Timing Role: High-drive, low-skew line driver conditions signals before entering lossy backplane traces, with independent OE control per quad for dynamic bus partitioning. Use Value: ±24 mA drive and <0.5 ns output skew ensure clean eye diagrams at 50 Mbps; bus-hold prevents metastability during hot-plug events.
Industrial I/O Expansion	Legacy Bus Isolation
Use Scenario: Extending GPIO count of ARM-based HMI controllers to drive LED arrays, relays, and opto-isolators in factory-floor HMIs. IC Role / Device Role / Timing Role: Level-shifting–free 5V buffer with robust ESD (>2000 V) and ground-bounce suppression protects host MCU from field-induced transients. Use Value: I_off protection and bus-hold allow safe power sequencing during firmware updates; 24 mA per output directly drives 20-mA LEDs without external drivers.	Use Scenario: Isolating ISA or PCI bus segments in medical imaging systems where legacy peripherals must coexist with modern controllers. IC Role / Device Role / Timing Role: Direction-transparent bus buffer with flow-through pinout preserves signal timing integrity across isolated bus domains while suppressing crosstalk. Use Value: Edge-rate control and <250 ps typical output skew prevent setup/hold violations across 100+ mm trace lengths - critical for deterministic real-time acquisition.

Memory Interface Buffering

Backplane Signal Conditioning

Use Scenario: Driving address/data buses between microcontroller and SRAM/Flash in industrial PLC modules where board space limits discrete pull-up placement.

IC Role / Device Role / Timing Role: Non-inverting 16-bit buffer with bus-hold inputs acts as bidirectional bus stabilizer and noise-suppressed driver between processor and memory subsystem.

Use Value: Eliminates 16 external pull resistors while maintaining <4.1 ns propagation delay - reducing BOM count and improving timing margin for 25-MHz memory access cycles.

Use Scenario: Interfacing FPGA I/O banks to legacy parallel backplanes in test equipment with long stubs and unterminated traces.

IC Role / Device Role / Timing Role: High-drive, low-skew line driver conditions signals before entering lossy backplane traces, with independent OE control per quad for dynamic bus partitioning.

Use Value: ±24 mA drive and <0.5 ns output skew ensure clean eye diagrams at 50 Mbps; bus-hold prevents metastability during hot-plug events.

Industrial I/O Expansion

Legacy Bus Isolation

Use Scenario: Extending GPIO count of ARM-based HMI controllers to drive LED arrays, relays, and opto-isolators in factory-floor HMIs.

IC Role / Device Role / Timing Role: Level-shifting–free 5V buffer with robust ESD (>2000 V) and ground-bounce suppression protects host MCU from field-induced transients.

Use Value: I_off protection and bus-hold allow safe power sequencing during firmware updates; 24 mA per output directly drives 20-mA LEDs without external drivers.

Use Scenario: Isolating ISA or PCI bus segments in medical imaging systems where legacy peripherals must coexist with modern controllers.

IC Role / Device Role / Timing Role: Direction-transparent bus buffer with flow-through pinout preserves signal timing integrity across isolated bus domains while suppressing crosstalk.

Use Value: Edge-rate control and <250 ps typical output skew prevent setup/hold violations across 100+ mm trace lengths - critical for deterministic real-time acquisition.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit bus buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
CY74FCT162244CTPVCT	No bus-hold; 24 mA balanced drive; identical timing and package.	Requires external pull resistors on all inputs; lower input noise immunity due to missing hysteresis.	Select when bus-hold is unnecessary and cost optimization is prioritized over board-space savings.
SN74FCT162H244CTPACT	TSSOP-48 (Z48) instead of SSOP-48; same electrical specs and bus-hold functionality.	Smaller footprint (240-mil vs. 300-mil width); higher density routing but tighter solder mask tolerance.	Select when PCB area is constrained and TSSOP reflow profile is already validated in production.

Compared with CY74FCT162244CTPVCT, FCT162H244CTPVCTG4 adds bus-hold to eliminate external biasing; compared with SN74FCT162H244CTPACT, it offers wider SSOP pitch for improved manufacturability in high-reliability industrial assembly.

Availability

FCT162H244CTPVCTG4 is available at Aetrix Electronics and suitable for industrial I/O expansion, memory interface buffering, and backplane signal conditioning requiring stable component supply, long-term lifecycle support, and guaranteed SSOP-48 packaging.

Supply support for FCT162H244CTPVCTG4 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.

FCT162H244CTPVCTG4 belongs to the 74FCT logic family - engineered for high-speed, low-noise 5V bus interfacing in industrial control, instrumentation, and legacy system upgrades.

FAQ

What is the exact package type and lead pitch of FCT162H244CTPVCTG4?

FCT162H244CTPVCTG4 uses a 48-pin SSOP (Shrink Small Outline Package) with 300-mil body width and 0.635 mm (25-mil) lead pitch. This O48 package is distinct from the TSSOP variant (Z48) and is fully documented in TI's mechanical drawing DGG0048A and ordering addendum.

Does FCT162H244CTPVCTG4 support partial power-down, and how is it implemented?

Yes, FCT162H244CTPVCTG4 supports partial power-down via its I_off circuitry. When V_CC = 0 V, the outputs are disabled and leakage current is limited to ±1 µA, preventing damaging back-current flow from live buses into the unpowered device - a key requirement for hot-swap and multi-rail systems.

How does the bus-hold feature on FCT162H244CTPVCTG4 function in practice?

The bus-hold circuitry on FCT162H244CTPVCTG4 actively retains the last valid logic state (HIGH or LOW) on each of its 16 inputs when external drive is removed. With ±50 µA sustain current, it eliminates floating inputs without external resistors - verified in TI's Electrical Characteristics table under IBBH/IBBL parameters.

What are the confirmed timing specifications for FCT162H244CTPVCTG4 at industrial temperature?

FCT162H244CTPVCTG4 guarantees t_PLH/t_PHL ≤ 4.1 ns, t_PZH/t_PZL ≤ 5.8 ns, and t_PHZ/t_PLZ ≤ 5.2 ns across –40°C to +85°C. These values are explicitly listed in the "Switching Characteristics Over the Operating Range" table for the CT speed grade and SSOP package variant.

Can FCT162H244CTPVCTG4 be used as a direct replacement for CY74FCT16244CTPVCT?

No - FCT162H244CTPVCTG4 is not a direct replacement for CY74FCT16244CTPVCT. While both are 16-bit buffers in SSOP-48, the former has bus-hold and 24 mA balanced drive, whereas the latter offers 64 mA sink/32 mA source drive and no bus-hold. Pinout is identical, but electrical behavior differs significantly in drive strength and input biasing.

FCT162H244CTPVCTG4 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74FCT

Package/Case:: 48-BSSOP (0.295", 7.50mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 4

Number of Bits per Element:: 4

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:: 48-SSOP

FCT162H244CTPVCTG4 FAQ

1.How can I place an order for FCT162H244CTPVCTG4 through Aetrix?

Please submit a Request for Quotation (RFQ) for FCT162H244CTPVCTG4 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 FCT162H244CTPVCTG4 reliable?

The price and inventory of FCT162H244CTPVCTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FCT162H244CTPVCTG4 is usually 5 days.

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FCT162H244CTPVCTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your FCT162H244CTPVCTG4 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 FCT162H244CTPVCTG4?

For technical support, including FCT162H244CTPVCTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FCT162H244CTPVCTG4 requirements.

6.How does Aetrix verify that FCT162H244CTPVCTG4 is sourced from the original manufacturer or authorized distributors?

All FCT162H244CTPVCTG4 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 FCT162H244CTPVCTG4 meets industry standards.

7.What is the process for return or replacement of FCT162H244CTPVCTG4?

All FCT162H244CTPVCTG4 units undergo pre-shipment inspection (PSI). If there is an issue with FCT162H244CTPVCTG4, 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 FCT162H244CTPVCTG4 part is unused and in its original packaging.

Return procedure for FCT162H244CTPVCTG4:

1.Submit a request within 90 days.

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

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