My Inquiry
My Account
Texas Instruments SN74ACT11245DBLE
- Part No.:
- SN74ACT11245DBLE
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
SN74ACT11245DBLE.pdf
- Description:
- BUS TRANSCEIVER
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74ACT11245DBLE from Texas Instruments is a triple 3-input AND gate IC performing Y = A • B • C logic in positive logic, operating at 4.5V–5.5V VCC, with TTL-compatible inputs, 10.5ns max propagation delay at 5V, and designed for motor controller reset signal conditioning in industrial control systems.
For engineers reviewing the SN74ACT11245DBLE datasheet, SN74ACT11245DBLE pinout, SN74ACT11245DBLE application, or SN74ACT11245DBLE equivalent, key selection considerations include input voltage tolerance (up to 5.5V), output drive capability (±24mA), thermal resistance (96°C/W in SSOP), logic-level compatibility, and unused-input termination requirements.
Technical Context
The SN74ACT11245DBLE implements three independent 3-input AND gates using ACT (Advanced CMOS TTL-compatible) technology, supporting standard positive-logic Boolean operation with defined high/low input thresholds (VIH = 2V, VIL = 0.8V). Each gate exhibits matched tPLH/tPHL switching characteristics and shares common VCC and GND rails.
It operates within –40°C to +85°C ambient temperature, requires all unused inputs tied to VCC or GND to prevent floating states, and delivers rail-to-rail output swing under specified load conditions (IOH/IOL = ±24mA), with input clamp current protection (±20mA) and absolute maximum VI up to VCC + 0.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5V to 5.5V - ensures stable operation across industrial-grade 5V supply tolerances |
| Max Propagation Delay | 10.5ns at 5V - enables timing-critical combinational logic in sub-100MHz control paths |
| Input Voltage Tolerance | Up to 5.5V - allows interfacing with 5V-tolerant I/O without level-shifting |
| Output Drive | ±24mA - supports direct driving of multiple CMOS/TTL loads or moderate-current logic interfaces |
| Input Compatibility | TTL-voltage compatible - accepts standard 0.8V/2.0V logic thresholds for seamless integration with legacy systems |
| Operating Temperature | –40°C to +85°C - qualified for industrial embedded environments including motor control enclosures |
| Power Dissipation Cap | 20pF typical Cpd - limits dynamic power consumption in high-frequency switching applications |
Pinout & Package
SN74ACT11245DBLE is packaged in 14-pin SSOP (DB) with 6.2mm × 7.8mm footprint and 1.75mm max height. The thermal pad is not present in DB package; pin 7 is GND and pin 14 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 1B, 1C | Input A/B/C for Gate 1 | Three dedicated inputs for first AND gate; all must be HIGH for 1Y assertion |
| 1Y | Output Y for Gate 1 | Active-HIGH output reflecting logical AND of pins 1A/1B/1C |
| 2A, 2B, 2C | Input A/B/C for Gate 2 | Three dedicated inputs for second AND gate; independent of other channels |
| 2Y | Output Y for Gate 2 | Active-HIGH output reflecting logical AND of pins 2A/2B/2C |
| 3A, 3B, 3C | Input A/B/C for Gate 3 | Three dedicated inputs for third AND gate; fully isolated channel |
| 3Y | Output Y for Gate 3 | Active-HIGH output reflecting logical AND of pins 3A/3B/3C |
| VCC (Pin 14) | Positive Supply | Primary 4.5–5.5V power rail; requires local 0.1μF bypass capacitor |
| GND (Pin 7) | Ground Reference | Common return path for all gates; must be low-impedance for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Triple independent 3-input AND function | Enables compact implementation of multi-signal enable logic without external gating or additional ICs |
| 4.5V–5.5V supply range | Matches standard industrial 5V rails while accommodating ±5% regulation tolerance |
| TTL-compatible inputs | Eliminates need for external level translators when interfacing with legacy microcontrollers or FPGAs |
| 10.5ns max tPD at 5V | Supports deterministic timing in real-time control loops with ≤100MHz clock domains |
| Input clamp current ±20mA | Provides robustness against transient overvoltage events on input lines without external protection |
Applications
| Motor Controller Reset Logic | Industrial PLC Input Conditioning |
|---|---|
Use Scenario: Combining three independent fault signals (overcurrent, overtemperature, undervoltage) to generate a single active-HIGH reset for a motor driver IC. IC Role / Device Role / Timing Role: Performs synchronous 3-input AND logic to ensure motor shutdown only when all safety conditions are simultaneously satisfied. Use Value: Reduces system-level component count by replacing discrete diode-OR or microcontroller polling with deterministic hardware logic. | Use Scenario: Validating presence of three sensor inputs (limit switch, encoder index, safety interlock) before enabling a machine motion sequence in a programmable logic controller. IC Role / Device Role / Timing Role: Acts as a hardware-based enable gate ensuring motion activation occurs only when all three physical inputs register HIGH. Use Value: Provides fail-safe, zero-latency validation independent of firmware execution, meeting SIL-2 functional safety expectations. |
| Power Sequencing Supervisor | Digital Signal Validation Hub |
Use Scenario: Monitoring three independent power rail monitors (12V, 5V, 3.3V) and asserting a system-ready signal only when all are within specification. IC Role / Device Role / Timing Role: Serves as a combinatorial power-good arbiter with nanosecond response to any rail dropout. Use Value: Enables reliable cold-start sequencing without software dependency or watchdog timer latency. | Use Scenario: Verifying simultaneous assertion of three digital handshake signals (READY, VALID, ACK) from an FPGA peripheral before latching data into a microcontroller interface. IC Role / Device Role / Timing Role: Functions as a synchronous data-valid detector synchronizing asynchronous peripheral handshaking. Use Value: Prevents metastability and data corruption by converting multi-signal readiness into a single clean strobe. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-input AND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ACT11DR | Same logic function and electrical specs; SOIC-14 package (8.65mm × 6mm) vs. SSOP-14 (6.2mm × 7.8mm) | Larger footprint and higher RθJA (119.9°C/W) - less suitable for thermally constrained PCB areas | Preferred when board layout favors SOIC or existing tooling uses D-package reels |
| SN74LVC1G11DBVR | Single 3-input AND in SOT-23-6; 1.65V–5.5V VCC; lower drive (±32mA); 3.7ns tPD at 3.3V | Not pin-compatible; requires three devices for equivalent channel count; optimized for low-voltage portable systems | Select when space-constrained designs require minimal footprint and operate below 3.3V |
Compared with SN74ACT11DR and SN74LVC1G11DBVR, SN74ACT11245DBLE offers optimal balance of industrial temperature range, SSOP density, and proven 5V TTL interoperability - making it the preferred choice for legacy-compatible motor control and PLC interface designs requiring triple-gate integration in one package.
Availability
SN74ACT11245DBLE is available at Aetrix Electronics and suitable for motor controller reset logic, industrial PLC input conditioning, power sequencing supervision, and digital signal validation hubs requiring stable component supply and long-term industrial lifecycle support.
Supply support for SN74ACT11245DBLE 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 company delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The SN74ACT11245DBLE belongs to TI's ACT logic family, engineered for high-speed, TTL-compatible 5V digital interfacing in industrial control and automation systems where reliability and noise immunity are critical.
FAQ
What is the recommended operating voltage range for SN74ACT11245DBLE?
The SN74ACT11245DBLE is specified for 4.5V to 5.5V VCC operation. Operation outside this range may cause unreliable logic behavior or damage. At 5V nominal supply, it delivers 10.5ns max propagation delay and ±24mA output drive. The device tolerates input voltages up to 5.5V regardless of VCC level, supporting mixed-voltage interface scenarios.
How should unused inputs be handled on SN74ACT11245DBLE?
All unused inputs on SN74ACT11245DBLE must be terminated to either VCC or GND to prevent floating states that cause increased power consumption, oscillation, or undefined outputs. TI recommends direct connection (not pull-up/down resistors) unless dynamic control is needed. For example, tying unused 1C to VCC ensures Gate 1 remains enabled only by 1A and 1B - preserving deterministic behavior per the function table.
Does SN74ACT11245DBLE support hot-swap or live-insertion?
SN74ACT11245DBLE does not include explicit hot-swap circuitry such as power-on reset or bus-hold. Its absolute maximum ratings allow VI up to VCC + 0.5V and clamp current ±20mA, but uncontrolled power sequencing during insertion can exceed these limits. For live-insertion applications, external current-limiting resistors and controlled ramp-up of VCC are required to avoid violating absolute maximum ratings during transition periods.
What is the thermal resistance (RθJA) of SN74ACT11245DBLE in its SSOP package?
The SN74ACT11245DBLE in SSOP (DB) package has a junction-to-ambient thermal resistance (RθJA) of 96°C/W, as measured per JEDEC JESD51 standards. This value assumes standard 2-layer PCB with 1-in² copper pour under the package. Actual thermal performance improves with enhanced copper area, internal planes, or airflow - critical for sustained operation near maximum ambient temperature (85°C).
Can SN74ACT11245DBLE drive a 50pF capacitive load reliably?
Yes, SN74ACT11245DBLE is characterized with CL = 50pF in its switching specifications and delivers 10.5ns max tPD under those conditions. The device's 20pF typical power dissipation capacitance (Cpd) confirms suitability for moderate-speed digital routing. For loads exceeding 70pF, TI recommends verifying timing margins using the load circuit in Figure 5-1 and accounting for trace capacitance in PCB layout.
SN74ACT11245DBLE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
SN74ACT11245DBLE FAQ
1.How can I place an order for SN74ACT11245DBLE through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ACT11245DBLE 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 SN74ACT11245DBLE reliable?
The price and inventory of SN74ACT11245DBLE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ACT11245DBLE is usually 5 days.
3.What payment methods are accepted for SN74ACT11245DBLE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ACT11245DBLE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ACT11245DBLE?
SN74ACT11245DBLE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ACT11245DBLE 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 SN74ACT11245DBLE?
For technical support, including SN74ACT11245DBLE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ACT11245DBLE requirements.
6.How does Aetrix verify that SN74ACT11245DBLE is sourced from the original manufacturer or authorized distributors?
All SN74ACT11245DBLE 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 SN74ACT11245DBLE meets industry standards.
7.What is the process for return or replacement of SN74ACT11245DBLE?
All SN74ACT11245DBLE units undergo pre-shipment inspection (PSI). If there is an issue with SN74ACT11245DBLE, 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 SN74ACT11245DBLE part is unused and in its original packaging.
Return procedure for SN74ACT11245DBLE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74ACT11245DBLE 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…
