CD74ACT245EE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD74ACT245EE4 is an octal bidirectional bus transceiver with 3-state outputs from Texas Instruments, part of the ACT logic family. It features direction control, 50pF load capacitance handling, and operates in a 20-pin PDIP package. Available as a lead-free, RoHS-compliant component with worldwide distribution.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- CD74ACT245EE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal (8-bit) bidirectional data bus transceiver with common direction control for flexible bus interfacing
- 3-state outputs enable multiple devices to share a common data bus without signal contention
- ACT logic family provides TTL-compatible inputs with CMOS-level speed and lower power consumption
- 20-pin PDIP package for through-hole assembly, ideal for prototyping and industrial control applications
Applications
The CD74ACT245EE4 is used in microprocessor and microcontroller bus interface circuits where bidirectional data transfer between different voltage levels or bus segments is required. It is commonly found in industrial control systems, memory interface boards, and legacy computing platforms that use through-hole PCB construction. The device is also applicable in data communication backplanes and embedded systems where 8-bit parallel bus buffering and direction control are needed.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | WITH DIRECTION CONTROL |
| Control Type | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | ACT |
| JESD-30 Code | R-PDIP-T20 |
| 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 | 8 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| 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 | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74ACT245EE4:
Frequently Asked Questions
What is the CD74ACT245EE4 and how does it work?
The CD74ACT245EE4 is an octal bidirectional non-inverting bus transceiver with 3-state outputs from Texas Instruments. It uses a direction control pin (DIR) to determine the data flow direction between two 8-bit buses (A and B), and an output enable pin (OE) to enable or disable the outputs. It is part of the ACT logic family, which supports TTL-compatible inputs at CMOS speeds.
What are the electrical characteristics of the CD74ACT245EE4?
The CD74ACT245EE4 is part of the ACT logic family and handles a load capacitance of up to 50pF per output. It features bidirectional data transfer with common direction control, 3-state outputs for bus sharing, and is compatible with standard 5V TTL/CMOS logic levels. The device is rated JESD-609 e4 (lead-free) and has a PDIP-20 package with JESD-30 code R-PDIP-T20.
What package does the CD74ACT245EE4 use and is it suitable for prototype assembly?
The CD74ACT245EE4 is supplied in a 20-pin PDIP (Plastic Dual In-Line Package), which is ideal for prototyping on breadboards and for through-hole PCB assembly. The E4 suffix indicates it is supplied in a tube format suitable for manual or low-volume assembly. This through-hole package makes it a popular choice for educational, industrial, and legacy system replacement applications.
What applications is the CD74ACT245EE4 best suited for?
The CD74ACT245EE4 is best suited for microprocessor bus buffering, memory interface circuits, and data bus isolation applications where bidirectional 8-bit data transfer with direction control is required. It is used in industrial automation controllers, legacy computing boards, signal routing in embedded systems, and any design requiring bus-level data translation or buffering with 3-state output capability.
What are common alternatives to the CD74ACT245EE4?
Common alternatives to the CD74ACT245EE4 include the SN74ACT245 series from Texas Instruments in surface-mount packages, as well as the 74HC245 (lower voltage, CMOS) and 74HCT245 (TTL-compatible CMOS) variants. When selecting an alternative, verify logic family compatibility, supply voltage, output drive strength, and package type to ensure pin-for-pin and electrically compatible replacement in your design.
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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.
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