CD74ACT245MG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments CD74ACT245MG4 is an octal bidirectional bus transceiver with 3-state outputs in a 20-pin SOIC package. It features direction-control and output-enable inputs and drives 50 pF loads with ACT-family speed and noise immunity. Designed for high-speed 5 V logic bus buffering and level interfacing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- CD74ACT245MG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6556(MOQ 575)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD74ACT245MG4?
- Octal 8-bit bidirectional data bus transceiver with 3-state outputs for bus isolation
- Direction and output-enable control pins for flexible master-slave and shared-bus topologies
- ACT family CMOS logic driving 50 pF loads with propagation delay under 7 ns
- 5 V supply compatible with TTL input thresholds for mixed-logic-level system interfacing
- 20-pin SOIC package with standard 1.27 mm pitch easing hand-soldering and rework
What is CD74ACT245MG4 used for?
The CD74ACT245MG4 buffers and isolates 8-bit data buses in microprocessor and FPGA systems where bus-driving strength or bidirectional isolation between subsections is needed. Its direction-control pin simplifies read-write switching in memory interface designs, address buses, and backplane interconnects operating at 5 V TTL-compatible logic levels. The SOIC-20 package and ACT logic family make it a proven drop-in replacement in legacy industrial and telecommunications hardware undergoing board refresh.
What are the specifications of CD74ACT245MG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | WITH DIRECTION CONTROL |
| Control Type | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | ACT |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | 0.024A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.16mA |
| Prop. Delay@Nom-Sup | 8.7ns |
| Propagation Delay (tpd) | 10ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia |
Where can I find the CD74ACT245MG4 datasheet?
CD74ACT245MG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74ACT245MG4?
Compatible alternatives and drop-in replacements for CD74ACT245MG4:
Bus Transceiver, ACT Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20
Frequently Asked Questions
How many data lines does the CD74ACT245MG4 buffer, and in which direction does data flow?
The CD74ACT245MG4 buffers 8 data lines simultaneously in a bidirectional configuration. A dedicated DIR (direction) pin selects whether data propagates from the A port to the B port or from B to A, making it straightforward to implement read-write bus switches for memory and peripheral bus architectures.
What propagation delay and load capacitance rating does the CD74ACT245MG4 support at 5 V?
In the ACT logic family at 5 V VCC, the CD74ACT245MG4 achieves a typical propagation delay of approximately 5 ns to 7 ns while driving a 50 pF capacitive load. This speed makes it appropriate for bus cycles in systems with clock frequencies up to several tens of megahertz where buffered signal integrity is critical.
Can the CD74ACT245MG4 interface between 5 V TTL logic and 5 V CMOS without additional translation circuitry?
Yes. The ACT family uses TTL-compatible input thresholds (VIL max 0.8 V, VIH min 2.0 V) and CMOS output swing levels close to the supply rails. This allows the CD74ACT245MG4 to directly interface TTL-output devices with CMOS-input devices on a 5 V bus without external level-translation ICs or resistor networks.
In what package does the CD74ACT245MG4 ship, and is it suitable for hand-soldering during prototyping?
The device is available in a 20-pin SOIC package with 1.27 mm lead pitch and a body width of 7.5 mm. The 1.27 mm pitch is wide enough for hand-soldering with a standard fine-tip iron, and the SOIC footprint is supported by most PCB design libraries, making prototyping and low-volume assembly straightforward.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 575+ | $0.6556 | $376.99 |
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