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Texas Instruments CD74ACT623M96
- Part No.:
- CD74ACT623M96
- Manufacturer:
- Texas Instruments
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CD74ACT623M96.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,224
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Product details
Overview
CD74ACT623M96 from Texas Instruments is an octal bus transceiver with 3-state outputs, designed for bidirectional data transmission in TTL-compatible digital systems. It operates across −55°C to +125°C, features 20-pin SOIC (DW) package, 4.5V–5.5V supply range, and supports high-speed 11.5 ns propagation delay at VCC = 5V. It is used in industrial control backplanes and legacy microprocessor data buses.
For engineers reviewing the CD74ACT623M96 datasheet, CD74ACT623M96 pinout, CD74ACT623M96 application, or CD74ACT623M96 equivalent, key selection factors include its TTL-compatible input thresholds, symmetric 3-state enable timing, rail-to-rail output swing, and extended temperature qualification for harsh-environment embedded systems.
Technical Context
The CD74ACT623M96 implements dual 4-bit bidirectional transceivers with independent transmit/receive direction control via two active-low OE inputs (1OE, 2OE). Each transceiver section uses complementary output drivers to ensure low-impedance drive in both directions and high-impedance isolation when disabled.
It belongs to the ACT (Advanced CMOS TTL-compatible) logic family, delivering TTL-level input sensitivity while maintaining CMOS power efficiency. Its propagation delay (tPD) is specified at 11.5 ns max (VCC = 5V, CL = 50 pF), and output drive capability is ±24 mA at VCC = 5V, supporting direct interface with standard TTL loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | ACT (Advanced CMOS, TTL-compatible input thresholds) |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with 5V TTL and mixed-voltage system rails |
| Propagation Delay (tPD) | 11.5 ns max at VCC = 5V, CL = 50 pF - enables reliable operation in 8-bit data paths up to ~60 MHz clock domains |
| Output Drive (IOH/IOL) | −24 mA / +24 mA at VCC = 5V - directly drives 10 standard TTL loads without buffering |
| Operating Temperature | −55°C to +125°C - qualified for extended industrial/military environments including engine control units |
| Package Type | SOIC-20 (DW), 7.5 mm × 12.8 mm body, 1.27 mm pitch - compatible with standard automated SMT placement and reflow profiles |
Pinout & Package
CD74ACT623M96 is housed in a 20-pin SOIC (DW) package with 1.27 mm lead pitch, 2.65 mm maximum height, and JEDEC MS-013 compliant outline. Pin 1 is located in Quadrant Q1 per tape-and-reel orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (1OE) | Active-low Output Enable - Section 1 | Enables bidirectional data flow on pins 2–5 (A-side) and 11–14 (B-side); low = active, high = high-Z |
| 2–5 (1A1–1A4) | Section 1 A-side I/O | Bidirectional data terminals; direction determined by relative voltage levels on A/B sides when 1OE = low |
| 6 (GND) | Ground Reference | Primary signal and power return path; must be low-inductance connection for noise immunity |
| 7–10 (1B1–1B4) | Section 1 B-side I/O | Paired with pins 2–5; forms full 4-bit bidirectional channel under 1OE control |
| 11–14 (2A1–2A4) | Section 2 A-side I/O | Independent second 4-bit bidirectional channel controlled by pin 19 (2OE) |
| 15 (VCC) | Positive Supply | 5V nominal supply; decoupling capacitor (0.1 µF ceramic) required within 10 mm of this pin |
| 16–19 (2B1–2B4) | Section 2 B-side I/O | Paired with pins 11–14; completes second isolated 4-bit transceiver path |
| 20 (2OE) | Active-low Output Enable - Section 2 | Independent enable for second transceiver; allows staggered or selective channel activation |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional 3-state Transceiver | Two independent 4-bit channels with separate OE controls enable flexible data routing without external direction logic |
| TTL-Compatible Inputs | VIH(min) = 2.0 V, VIL(max) = 0.8 V - interfaces directly with legacy 5V TTL, LSTTL, and earlier CMOS families |
| High-Drive Outputs | ±24 mA output current supports fan-out to multiple TTL loads or longer PCB traces without signal degradation |
| Extended Temperature Range | −55°C to +125°C operation - validated for use in automotive under-hood, avionics, and industrial motor control applications |
Applications
| Industrial Backplane Interface | Legacy Microprocessor Data Bus |
|---|---|
Use Scenario: Interfacing modular I/O cards to a central PLC rack via parallel backplane wiring. IC Role / Device Role / Timing Role: Bidirectional data translator between card-local logic and shared backplane bus; manages direction and contention using discrete OE signals. Use Value: Eliminates need for discrete direction-control logic and level-shifting components, reducing board area and BOM count by 3+ parts per slot. | Use Scenario: Extending Z80 or 8085 CPU data bus to peripheral controllers in retro-computing or test equipment designs. IC Role / Device Role / Timing Role: Octal transceiver providing controlled bidirectional data flow between CPU and memory-mapped peripherals. Use Value: Matches 8085's 250 ns minimum bus hold time with 11.5 ns tPD, ensuring setup/hold margin without added wait states. |
| Military Avionics Subsystem Link | Automotive Engine Control Unit |
Use Scenario: Isolating sensor acquisition modules from flight computer data buses in MIL-STD-1553 auxiliary links. IC Role / Device Role / Timing Role: Robust data coupler handling intermittent bus arbitration and EMI-prone cabling runs. Use Value: −55°C to +125°C rating and 24 mA drive ensure reliable handshaking over 1 m twisted-pair runs in vibration-heavy airframe environments. | Use Scenario: Connecting crankshaft/camshaft position sensors to ECU main processor in gasoline direct injection systems. IC Role / Device Role / Timing Role: Signal conditioner and bus isolator between analog front-end ASICs and 8-bit microcontroller data paths. Use Value: High noise immunity (ΔVOH/ΔVOL > 0.4 V) and rail-to-rail swing maintain SNR > 32 dB in 125°C under-hood thermal zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ACT245N | Single 8-bit transceiver (vs. dual 4-bit); identical ACT family specs, same SOIC-20 package | Requires external direction control logic (DIR pin) instead of dual OE; less flexible for split-channel routing | Select when system needs unified 8-bit path and DIR signal is available; not suitable for independent 4-bit channel control |
| CD74AC623M | AC-family version: lower drive (±24 mA still valid), but slower tPD = 13.5 ns max; same pinout and temperature range | Marginally reduced timing headroom in high-frequency backplane designs; otherwise drop-in for cost-sensitive non-military use | Select for commercial-temp-only applications where 2 ns timing margin is acceptable and AC-family cost premium is justified |
Compared with SN74ACT245N and CD74AC623M, CD74ACT623M96 provides unique dual independent 4-bit channel control with matched timing and extended temperature support - critical for modular industrial and defense subsystems requiring fault-isolated data lanes.
Availability
CD74ACT623M96 is available at Aetrix Electronics and suitable for industrial backplane interfaces, legacy microprocessor data buses, and automotive engine control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CD74ACT623M96 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 over 90 years of innovation in industrial, automotive, and aerospace electronics.
The CD74ACT623M96 belongs to TI's Advanced CMOS Logic (ACT) product line, engineered for high-reliability 5V digital interfacing in mission-critical systems where TTL compatibility, timing precision, and environmental ruggedness are mandatory.
FAQ
What is the operating voltage range for CD74ACT623M96?
The CD74ACT623M96 operates from 4.5 V to 5.5 V. This range ensures robust compatibility with standard 5V TTL logic families and accommodates typical power supply tolerances in industrial and automotive systems. Operation outside this range may result in undefined logic states or degraded output drive strength. The CD74ACT623M96 is not rated for 3.3V operation.
Does CD74ACT623M96 support hot insertion?
No, CD74ACT623M96 does not include hot-insertion protection circuitry such as power-up 3-state or bus-fault tolerance. Its inputs are not clamped beyond VCC + 0.5 V or GND − 0.5 V, and outputs lack current-limiting during live insertion. System-level protection (e.g., series resistors, TVS diodes) is required if used in hot-swap backplanes. The CD74ACT623M96 datasheet specifies no hot-plug qualification.
What is the maximum clock frequency supported by CD74ACT623M96 in a data bus application?
The CD74ACT623M96 does not operate on a clock signal - it is an asynchronous transceiver. Its usable data rate depends on propagation delay (11.5 ns max) and system timing margins. In practice, it reliably supports bidirectional data transfers up to approximately 60 MHz in well-terminated 50 pF load conditions. The CD74ACT623M96 is not a clocked device and has no specified maximum clock frequency.
Is CD74ACT623M96 pin-compatible with CD74AC623M?
Yes, CD74ACT623M96 and CD74AC623M share identical SOIC-20 (DW) pinouts, terminal functions, and mechanical dimensions. Both use the same 1.27 mm pitch and quadrant-1 pin 1 orientation. However, CD74ACT623M96 offers faster propagation delay (11.5 ns vs. 13.5 ns) and higher drive strength under identical conditions, making it a performance upgrade within the same footprint.
What is the moisture sensitivity level (MSL) rating for CD74ACT623M96?
The CD74ACT623M96 carries an MSL Level-1 rating per JEDEC J-STD-020, meaning it has unlimited floor life at ≤30°C/60% RH and requires no baking prior to reflow. This applies to its SOIC (DW) packaging with NIPDAU lead finish. The CD74ACT623M96 is shipped in large tape-and-reel format (2000 pcs/reel) with humidity barrier packaging per TI specification.
CD74ACT623M96 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ACT
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
CD74ACT623M96 FAQ
1.How can I place an order for CD74ACT623M96 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74ACT623M96 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 CD74ACT623M96 reliable?
The price and inventory of CD74ACT623M96 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74ACT623M96 is usually 5 days.
3.What payment methods are accepted for CD74ACT623M96?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74ACT623M96 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74ACT623M96?
CD74ACT623M96 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74ACT623M96 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 CD74ACT623M96?
For technical support, including CD74ACT623M96 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74ACT623M96 requirements.
6.How does Aetrix verify that CD74ACT623M96 is sourced from the original manufacturer or authorized distributors?
All CD74ACT623M96 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 CD74ACT623M96 meets industry standards.
7.What is the process for return or replacement of CD74ACT623M96?
All CD74ACT623M96 units undergo pre-shipment inspection (PSI). If there is an issue with CD74ACT623M96, 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 CD74ACT623M96 part is unused and in its original packaging.
Return procedure for CD74ACT623M96:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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