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

Texas Instruments CD74FCT244ATM96

Name: CD74FCT244ATM96
Brand: Texas Instruments
SKU: CD74FCT244ATM96
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CD74FCT244ATM96

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 20-SOIC (0.295", 7.50mm Width)

Datasheet:: CD74FCT244ATM96.pdf

Description:: IC BUF NON-INVERT 5.25V 20SOIC

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Product details

Overview

CD74FCT244ATM96 from Texas Instruments is a BiCMOS octal noninverting buffer/line driver with 3-state outputs, designed for bus interface and data routing in 5-V TTL-compatible systems. It features dual 4-bit sections with independent active-low output-enable (OE) controls, 64-mA sink capability per output, 3.7-V limited high-level output swing, and controlled edge rates to suppress EMI. It operates across 0°C to 70°C in SOIC-20 packaging.

For engineers reviewing the CD74FCT244ATM96 datasheet, CD74FCT244ATM96 pinout, CD74FCT244ATM96 application, or CD74FCT244ATM96 equivalent, this device is selected for high-drive, low-noise bidirectional bus buffering where V_CC bounce and ground bounce mitigation are critical - especially in dense PCB layouts with simultaneous switching outputs.

Technical Context

The CD74FCT244ATM96 uses a BiCMOS process combining bipolar pull-down and CMOS pull-up transistors, limiting VOH to ~3.7 V (two diode drops below V_CC) to reduce power-bus ringing and improve signal integrity. Its output stage delivers 64 mA sink current while maintaining VOL ≤ 0.55 V at that load.

Each of the two 4-bit sections has separate OE inputs enabling independent 3-state control. Input/Output isolation from V_CC and buffered inputs ensure noise immunity and compatibility with TTL and CMOS logic families. Propagation delay is 3.8 ns typical (A→Y), with enable/disable times of 4.8 ns (t_en) and 4.5 ns (t_dis) at V_CC = 5 V.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Supply Range	4.75 V to 5.25 V - Ensures stable operation within standard 5-V TTL rail tolerance.
I_OL Sink Current	64 mA per output - Supports direct driving of heavy capacitive loads or multiple TTL inputs without external buffers.
V_OH Output High	2.4 V min at –15 mA - Guarantees TTL-compatible logic-high margin under load.
V_OL Output Low	0.55 V max at 64 mA - Maintains robust logic-low margin even at full sink current.
t_pd Propagation Delay	3.8 ns typical (A→Y) - Enables high-speed data transfer in 20–25 MHz bus applications.
t_en/t_dis	4.8 ns / 4.5 ns typical - Fast 3-state transition minimizes bus contention windows during direction switching.
C_i/C_o	10 pF / 15 pF - Low input/output capacitance reduces loading on driving sources and downstream nets.

Pinout & Package

CD74FCT244ATM96 is housed in a 20-pin SOIC (DW) package, 7.5 mm wide, 12.8 mm long, with 1.27 mm pitch and maximum height of 2.65 mm. RoHS-compliant, NIPDAU lead finish, MSL Level-1.

Pin/Terminal	Circuit Role	Design Meaning
1, 19	1OE, 2OE	Active-low output-enable inputs - Independently disable each 4-bit section into high-Z state.
2–5, 13–16	1A1–1A4, 2A1–2A4	Data inputs - Accept TTL/CMOS logic levels; buffered for noise immunity.
6–9, 11–14	2Y4–2Y1, 1Y1–1Y4	Noninverted 3-state outputs - Drive buses with 64-mA sink strength and 3.7-V VOH limit.
10	GND	Ground reference - Shared return path for all I/O and internal circuitry.
20	V_CC	Positive supply - Powers BiCMOS output stage and input buffers; must be decoupled locally.

Key Features

Feature	Design Value
BiCMOS output architecture	Combines bipolar sink + CMOS source for 64-mA drive and low static power (ICC ≤ 80 µA).
3.7-V output voltage swing	Reduces ΔI/Δt-induced V_CC and ground bounce, cutting EMI in multi-output switching events.
SCR latch-up resistance	Guaranteed immunity to latch-up per JEDEC JESD78, supporting robust operation in noisy industrial environments.
Controlled output edge rates	Slower than pure CMOS but faster than standard TTL - balances speed and EMI reduction without external termination.
Input/Output isolation from V_CC	Prevents back-driving damage and enables hot-swap compatibility when OE is asserted before power sequencing.

Applications

Microprocessor Bus Interface	Memory Address/Data Buffering
Use Scenario: Isolating and driving address/data lines between a microprocessor and peripheral ICs on a shared 5-V bus. IC Role / Device Role / Timing Role: Bidirectional buffer with independent OE control per 4-bit group, enabling clean read/write direction switching. Use Value: 64-mA sink current drives 10+ TTL loads directly; 3.7-V VOH prevents overshoot-induced timing violations during fast bus transitions.	Use Scenario: Latching and amplifying memory address signals to drive multiple SRAM or Flash devices. IC Role / Device Role / Timing Role: Noninverting line driver with low propagation delay (3.8 ns typ) and tight skew control across Y outputs. Use Value: Controlled edge rates minimize crosstalk on parallel address traces; low C_o (15 pF) preserves signal rise time over 10-cm PCB runs.
Industrial PLC I/O Expansion	Digital Signal Routing in Test Equipment
Use Scenario: Interfacing FPGA-based controller logic to 5-V discrete I/O modules in programmable logic controllers. IC Role / Device Role / Timing Role: Level-shifting and fan-out buffer with SCR latch-up resistance for field-side transient resilience. Use Value: Input/Output isolation from V_CC allows safe hot-plug insertion; 0.55-V VOL ensures reliable detection by downstream comparators or optocouplers.	Use Scenario: Multiplexing digital stimulus/response paths in automated test equipment with synchronized pattern generators. IC Role / Device Role / Timing Role: Precision timing buffer with matched t_pd across channels and sub-5-ns enable/disable latency. Use Value: Tight t_en/t_dis spec (4.8/4.5 ns) enables <10-ns window control of signal routing - critical for jitter-sensitive ATE timing margins.

Microprocessor Bus Interface

Memory Address/Data Buffering

Use Scenario: Isolating and driving address/data lines between a microprocessor and peripheral ICs on a shared 5-V bus.

IC Role / Device Role / Timing Role: Bidirectional buffer with independent OE control per 4-bit group, enabling clean read/write direction switching.

Use Value: 64-mA sink current drives 10+ TTL loads directly; 3.7-V VOH prevents overshoot-induced timing violations during fast bus transitions.

Use Scenario: Latching and amplifying memory address signals to drive multiple SRAM or Flash devices.

IC Role / Device Role / Timing Role: Noninverting line driver with low propagation delay (3.8 ns typ) and tight skew control across Y outputs.

Use Value: Controlled edge rates minimize crosstalk on parallel address traces; low C_o (15 pF) preserves signal rise time over 10-cm PCB runs.

Industrial PLC I/O Expansion

Digital Signal Routing in Test Equipment

Use Scenario: Interfacing FPGA-based controller logic to 5-V discrete I/O modules in programmable logic controllers.

IC Role / Device Role / Timing Role: Level-shifting and fan-out buffer with SCR latch-up resistance for field-side transient resilience.

Use Value: Input/Output isolation from V_CC allows safe hot-plug insertion; 0.55-V VOL ensures reliable detection by downstream comparators or optocouplers.

Use Scenario: Multiplexing digital stimulus/response paths in automated test equipment with synchronized pattern generators.

IC Role / Device Role / Timing Role: Precision timing buffer with matched t_pd across channels and sub-5-ns enable/disable latency.

Use Value: Tight t_en/t_dis spec (4.8/4.5 ns) enables <10-ns window control of signal routing - critical for jitter-sensitive ATE timing margins.

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal 3-state buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74F244N	Standard TTL (bipolar only), higher ICC (40 mA), 35-mA sink, no VOH limiting - greater V_CC bounce risk.	Limited to lower-speed (<10 MHz), low-fanout designs where EMI is not critical.	Choose SN74F244N only if legacy TTL compatibility is mandatory and layout lacks decoupling headroom.
74ACT244SCX	Advanced CMOS, 5-V tolerant, 24-mA sink, full-rail VOH (V_CC–0.1 V), faster t_pd (3.0 ns), but no BiCMOS EMI suppression.	Better for high-speed point-to-point links; unsuitable for noisy, multi-drop buses with simultaneous switching.	Select 74ACT244SCX when maximum speed and rail-to-rail swing outweigh EMI concerns - e.g., short trace FPGA interconnects.

Compared with SN74F244N and 74ACT244SCX, CD74FCT244ATM96 uniquely balances 64-mA drive, EMI-suppressing 3.7-V VOH, and BiCMOS power efficiency - making it optimal for medium-speed, multi-load 5-V bus interfaces where signal integrity and layout robustness are prioritized over raw speed.

Availability

CD74FCT244ATM96 is available at Aetrix Electronics and suitable for microprocessor bus interface, memory address/data buffering, industrial PLC I/O expansion, and digital signal routing in test equipment requiring stable component supply and long-term industrial lifecycle support.

Supply support for CD74FCT244ATM96 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, longevity, and industrial-grade qualification.

The CD74FCT244ATM96 belongs to TI's FCT logic family - engineered specifically for 5-V TTL-compatible bus interfacing with enhanced noise immunity, EMI control, and latch-up resistance in harsh operating environments.

FAQ

What is the maximum recommended operating temperature for CD74FCT244ATM96?

The CD74FCT244ATM96 is rated for operation from 0°C to +70°C ambient temperature. This commercial-grade range aligns with standard industrial board-level environments where airflow and thermal design maintain junction temperatures within safe limits. Exceeding 70°C ambient may violate recommended operating conditions and impact VOL, VOH, and timing specifications.

Does CD74FCT244ATM96 support hot-swap insertion?

Yes - CD74FCT244ATM96 supports hot-swap insertion due to its input/output isolation from V_CC and SCR latch-up-resistant BiCMOS design. To ensure safe operation, tie OE pins to V_CC via a pullup resistor during power-up; TI specifies minimum resistor value based on driver sink capability, typically ≥10 kΩ.

What is the purpose of the 3.7-V output voltage swing limitation in CD74FCT244ATM96?

The 3.7-V VOH limit in CD74FCT244ATM96 results from bipolar-CMOS hybrid output stages clamping high-level output to two diode drops below V_CC. This intentional limitation reduces dI/dt-induced power-bus ringing and V_CC/ground bounce - directly improving EMI performance and signal integrity during simultaneous multi-output switching events.

Can CD74FCT244ATM96 drive standard TTL inputs reliably?

Yes - CD74FCT244ATM96 drives standard TTL inputs reliably: its VOH ≥ 2.4 V at –15 mA meets TTL VIH minimum (2.0 V), and VOL ≤ 0.55 V at 64 mA exceeds TTL VIL maximum (0.8 V). With 64-mA sink capability, it can directly drive up to 10 standard TTL unit loads without degradation.

Is CD74FCT244ATM96 pin-compatible with CD74FCT244M96?

Yes - CD74FCT244ATM96 and CD74FCT244M96 share identical SOIC-20 (DW) package dimensions, pinout, and electrical functionality. The "AT" suffix denotes the advanced FCT version with tighter AC specs (e.g., 3.8 ns vs. 4.5 ns t_pd), but both are mechanically and electrically interchangeable in existing footprints.

CD74FCT244ATM96 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74FCT

Package/Case:: 20-SOIC (0.295", 7.50mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 2

Number of Bits per Element:: 4

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 15mA, 64mA

Voltage - Supply:: 4.75V ~ 5.25V

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-SOIC

CD74FCT244ATM96 FAQ

1.How can I place an order for CD74FCT244ATM96 through Aetrix?

Please submit a Request for Quotation (RFQ) for CD74FCT244ATM96 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 CD74FCT244ATM96 reliable?

The price and inventory of CD74FCT244ATM96 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74FCT244ATM96 is usually 5 days.

3.What payment methods are accepted for CD74FCT244ATM96?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74FCT244ATM96 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CD74FCT244ATM96?

CD74FCT244ATM96 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CD74FCT244ATM96 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 CD74FCT244ATM96?

For technical support, including CD74FCT244ATM96 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74FCT244ATM96 requirements.

6.How does Aetrix verify that CD74FCT244ATM96 is sourced from the original manufacturer or authorized distributors?

All CD74FCT244ATM96 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 CD74FCT244ATM96 meets industry standards.

7.What is the process for return or replacement of CD74FCT244ATM96?

All CD74FCT244ATM96 units undergo pre-shipment inspection (PSI). If there is an issue with CD74FCT244ATM96, 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 CD74FCT244ATM96 part is unused and in its original packaging.

Return procedure for CD74FCT244ATM96:

1.Submit a request within 90 days.

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

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