My Inquiry
My Account
Texas Instruments CY74FCT541CTSOCTE4
- Part No.:
- CY74FCT541CTSOCTE4
- Manufacturer:
- Texas Instruments
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CY74FCT541CTSOCTE4.pdf
- Description:
- IC BUF NON-INVERT 5.25V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,897
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY74FCT541CTSOCTE4 from Texas Instruments is an 8-bit noninverting buffer/line driver with 3-state outputs, designed for memory address driving, clock distribution, and bus-oriented data transmission in TTL- and CMOS-compatible systems. It delivers 64-mA sink / 32-mA source drive strength, 4.1-ns typical propagation delay (tPLH/tPHL), and operates at 4.75–5.25 V with Ioff partial-power-down support.
For engineers reviewing the CY74FCT541CTSOCTE4 datasheet, CY74FCT541CTSOCTE4 pinout, CY74FCT541CTSOCTE4 application, or CY74FCT541CTSOCTE4 equivalent, key selection criteria include 3-state bus isolation capability, edge-rate controlled noise performance, TTL-level input compatibility, and SOIC-20 packaging for industrial-grade signal integrity and layout flexibility.
Technical Context
This device implements dual active-low 3-state enable inputs (OEA and OEB) controlling eight noninverting output channels. Its edge-rate control circuitry limits slew rate to reduce simultaneous switching noise, while matched rise/fall times ensure clean digital transitions under load.
The Ioff feature disables all outputs when VCC = 0 V, blocking current backflow during partial power-down-critical for hot-swap and mixed-voltage system designs. Input thresholds (VIH = 2 V, VIL = 0.8 V) and output levels (VOH = 2.4 V min @ –32 mA, VOL = 0.55 V max @ 64 mA) guarantee full interoperability with standard TTL logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.75–5.25 V - Ensures stable operation across industrial-grade voltage tolerances without external regulation. |
| Propagation Delay | 4.1 ns max (tPLH/tPHL) - Enables high-speed bus buffering up to ~240 MHz data rate in point-to-point configurations. |
| Output Drive | 64 mA sink / 32 mA source - Supports direct interface to multiple TTL loads or termination-resistor networks. |
| Ioff Current | ±1 µA at VCC = 0 V - Prevents damaging back-current during power sequencing or standby modes. |
| Input Compatibility | TTL-level (VIH ≥ 2 V, VIL ≤ 0.8 V) - Eliminates need for level-shifting components when interfacing legacy TTL systems. |
| ESD Protection | 2000-V HBM, 200-V MM, 1000-V CDM - Meets JEDEC JESD22-A114/A115/C101 for robust handling in manufacturing and field environments. |
Pinout & Package
Package: SOIC-20 (DW), 7.5 mm × 12.8 mm body, 1.27 mm pitch, RoHS-compliant NiPdAu lead finish, MSL Level-1 (unlimited reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OEA, OEB | Active-low 3-state enables - Both must be low to activate outputs; independent control allows channel grouping. |
| 2–9 | D0–D7 | Data inputs - Noninverting logic inputs compatible with TTL/CMOS voltage thresholds. |
| 11–18 | O0–O7 | 3-state buffered outputs - High-impedance state (Z) when either OEA or OEB is high. |
| 10 | GND | Ground reference - Shared return path for all I/O and internal logic; requires low-inductance PCB connection. |
| 20 | VCC | Power supply - Must be decoupled locally with 0.1 µF ceramic capacitor near pin for noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Edge-rate controlled outputs | Reduces simultaneous switching noise (SSN) by limiting dV/dt, enabling cleaner signal integrity on dense PCBs. |
| Matched rise/fall times | Ensures symmetrical waveform edges (<10% skew), minimizing duty-cycle distortion in clock distribution paths. |
| Ioff partial-power-down | Allows safe insertion/removal in live backplanes or multi-rail systems without risk of latch-up or bus contention. |
| 3-state dual-enable architecture | Supports flexible bus arbitration: OEA can gate one subsystem while OEB controls another, reducing external logic count. |
Applications
| Memory Address Buffering | Industrial Bus Transceiver |
|---|---|
Use Scenario: Driving 8-bit address lines from a microcontroller to multiple SRAM or EPROM devices on a shared bus. IC Role / Device Role / Timing Role: Noninverting buffer with 3-state isolation prevents address bus contention during memory access arbitration. Use Value: 64-mA sink drive ensures reliable low-level signaling across 10+ cm traces with 50-pF load, maintaining setup/hold timing margins. | Use Scenario: Isolating two segments of an RS-485 or CAN physical layer bus using discrete control logic. IC Role / Device Role / Timing Role: Direction-controlled line driver enabling half-duplex bidirectional data flow with precise enable timing. Use Value: 4.1-ns propagation delay and sub-10-ns enable/disable times allow synchronization with 25-MHz UART clocks without added latency. |
| Legacy TTL System Interface | Programmable Logic I/O Expansion |
Use Scenario: Interfacing modern FPGA I/O banks (3.3 V LVTTL) to legacy 5-V TTL peripherals like parallel printers or industrial PLC modules. IC Role / Device Role / Timing Role: Level-tolerant buffer translating between voltage domains while preserving signal integrity and timing. Use Value: TTL-compatible input thresholds (VIH = 2 V, VIL = 0.8 V) and 5-V rail operation eliminate external bias resistors or translators. | Use Scenario: Expanding GPIO count of a microcontroller by connecting unused pins to CY74FCT541CTSOCTE4 outputs for LED arrays or relay drivers. IC Role / Device Role / Timing Role: High-drive buffer enabling direct control of 20-mA LEDs or 5-V coil relays without transistor stages. Use Value: 32-mA source / 64-mA sink capability supports multiplexed 8×LED displays with single-resistor current limiting per segment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit noninverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74FCT541CTSOCT | Same pinout, identical electrical specs, TI second-source part with identical DW package and marking. | No functional or layout difference; suitable for dual-sourcing or extended lifecycle procurement. | Select when requiring TI's FCT family consistency across BOMs without design change. |
| 74AC541SCX | Lower drive (24 mA sink/source), higher ICC (2 mA typ), no Ioff, AC logic family (not FCT). | Lacks partial-power-down protection; unsuitable for hot-swap or mixed-rail systems requiring Ioff. | Choose only for cost-sensitive, single-rail 5-V systems where Ioff and noise control are not required. |
Compared with SN74FCT541CTSOCT, CY74FCT541CTSOCTE4 offers identical functionality and sourcing traceability; versus 74AC541SCX, it provides superior noise immunity, Ioff safety, and higher drive-justifying use in industrial control and embedded communications where reliability outweighs marginal cost differences.
Availability
CY74FCT541CTSOCTE4 is available at Aetrix Electronics and suitable for industrial automation interfaces, legacy system upgrades, and embedded bus expansion requiring stable component supply, long-term manufacturability, and RoHS-compliant SOIC packaging.
Supply support for CY74FCT541CTSOCTE4 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.
CY74FCT541CTSOCTE4 belongs to the TI FCT logic family-engineered for high-speed, low-noise, TTL-compatible buffering in mission-critical industrial and military-grade systems requiring robust ESD tolerance and partial-power-down capability.
FAQ
What is the maximum operating temperature range for CY74FCT541CTSOCTE4?
CY74FCT541CTSOCTE4 is rated for operation from –40°C to +85°C ambient temperature, meeting industrial-grade thermal requirements. This range is validated per TI's recommended operating conditions and supported by thermal impedance (θJA = 58°C/W) and derating curves in the SCCS072 datasheet. The SOIC-20 package enables reliable thermal dissipation within this envelope under typical 10–20 mA static load conditions.
Does CY74FCT541CTSOCTE4 support hot-swap or partial-power-down operation?
Yes, CY74FCT541CTSOCTE4 supports partial-power-down via its Ioff circuitry. When VCC = 0 V, Ioff limits output leakage to ±1 µA even with input/output voltages up to 4.5 V, preventing damaging back-current during hot-insertion or mixed-supply sequencing. This behavior is explicitly characterized in the electrical characteristics table and confirmed in the functional description of the CY74FCT541T series.
What is the pin 1 orientation for CY74FCT541CTSOCTE4 in tape-and-reel packaging?
CY74FCT541CTSOCTE4 in SOIC-20 (DW) tape-and-reel format uses Quadrant Q1 for pin 1 orientation, as documented in TI's PACKAGE MATERIALS INFORMATION (10-Aug-2026). This aligns with JEDEC-standard carrier tape indexing, ensuring consistent automated placement during SMT assembly without manual rotation verification.
Can CY74FCT541CTSOCTE4 directly drive a 50-pF capacitive load at 10 MHz?
Yes, CY74FCT541CTSOCTE4 is specified to drive 50-pF loads with guaranteed timing: tPLH/tPHL ≤ 4.1 ns and tPZH/tPZL ≤ 5.8 ns under those conditions (per switching characteristics table). Its edge-rate control and 64-mA sink capability maintain signal fidelity across such loads, making it suitable for high-speed board-level interconnects without external termination.
Is CY74FCT541CTSOCTE4 pin-compatible with CY74FCT541ATSOCT?
Yes, CY74FCT541CTSOCTE4 and CY74FCT541ATSOCT share identical SOIC-20 (DW) pinout, terminal functions, and mechanical footprint. They differ only in speed grade (4.1 ns vs. 4.8 ns propagation delay) and output drive (64/32 mA vs. 48/12 mA), allowing drop-in replacement where timing margin permits-no PCB changes required.
CY74FCT541CTSOCTE4 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:
- Discontinued at Digi-Key
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
CY74FCT541CTSOCTE4 FAQ
1.How can I place an order for CY74FCT541CTSOCTE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY74FCT541CTSOCTE4 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 CY74FCT541CTSOCTE4 reliable?
The price and inventory of CY74FCT541CTSOCTE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY74FCT541CTSOCTE4 is usually 5 days.
3.What payment methods are accepted for CY74FCT541CTSOCTE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY74FCT541CTSOCTE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY74FCT541CTSOCTE4?
CY74FCT541CTSOCTE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY74FCT541CTSOCTE4 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 CY74FCT541CTSOCTE4?
For technical support, including CY74FCT541CTSOCTE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY74FCT541CTSOCTE4 requirements.
6.How does Aetrix verify that CY74FCT541CTSOCTE4 is sourced from the original manufacturer or authorized distributors?
All CY74FCT541CTSOCTE4 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 CY74FCT541CTSOCTE4 meets industry standards.
7.What is the process for return or replacement of CY74FCT541CTSOCTE4?
All CY74FCT541CTSOCTE4 units undergo pre-shipment inspection (PSI). If there is an issue with CY74FCT541CTSOCTE4, 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 CY74FCT541CTSOCTE4 part is unused and in its original packaging.
Return procedure for CY74FCT541CTSOCTE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY74FCT541CTSOCTE4 Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
