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| Product attributes | Property Value |
| Manufacturer | Motorola |
| Product Series | MC3459 |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Address Driver |
| Number of Elements | 4 |
| Number of Bits per Element | 1 |
| Input Type | - |
| Output Type | - |
| Current - Output High, Low | 2mA, 80mA |
| Voltage - Supply | 4.75V ~ 5.25V |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 14-DIP (0.300", 7.62mm) |
| Supplier Device Package | 14-DIP |
The MC3459P from Motorola is a 4-channel address driver designed for high-current bus interfacing in 5V logic systems. Operating from 4.75V to 5.25V, it delivers 2mA source and 80mA sink current, making it ideal for driving memory address lines and capacitive loads. The 14-pin DIP package supports through-hole assembly, while the 0°C to 70°C temperature range covers commercial applications. Typical uses include memory systems, industrial controls, and test equipment requiring robust signal buffering.
- High Sink Current (80mA): Drives heavily loaded address buses with multiple memory chips, ensuring signal integrity.
- 4-Channel Integration: Reduces component count by buffering four address lines in one package, saving PCB space.
- Standard 5V Operation (4.75V-5.25V): Directly compatible with legacy TTL and CMOS logic systems without level shifting.
- Through-Hole DIP Package: Facilitates easy prototyping and manual assembly in industrial and repair environments.
Memory Address Line Driving
Use the MC3459P to buffer address lines between a CPU and SRAM/DRAM arrays. Its 80mA sink current handles the high capacitance of multiple memory chips, ensuring reliable address setup and hold times.
Bus Signal Distribution
In systems requiring fan-out to multiple peripherals, the 4-channel design allows clean distribution of address signals without loading the source. The 2mA source capability maintains logic levels across long PCB traces.
Industrial Control Logic
For PLCs and industrial controllers operating at 5V, this driver provides robust signal conditioning for addressable I/O modules. The 0°C to 70°C temperature range suits factory floor environments.
Legacy 5V System Interfacing
When interfacing older 5V microprocessors with memory-mapped devices, the MC3459P ensures proper drive strength. Its DIP package simplifies prototyping and repair in legacy equipment.
Test Equipment Address Decoding
In benchtop test instruments, use this driver to fan out address signals to multiple test points. The high sink current prevents signal degradation when probing multiple nodes simultaneously.
Telecom Line Card Addressing
For telecom line cards with multiple channel controllers, the MC3459P buffers address buses to each channel. Its 4.75V-5.25V range ensures compatibility with standard telecom logic rails.
- Q: What is the logic family of the MC3459P?
- A: The MC3459P belongs to the MC3459 logic family, designed for address driver applications.
- Q: What is the function of this IC?
- A: It is a 4-channel Address Driver used to buffer and drive address lines in memory systems.
- Q: How many channels does the MC3459P have?
- A: It features 4 independent channels for driving multiple address signals.
- Q: What is the supply voltage range?
- A: The operating voltage range is 4.75V to 5.25V, making it suitable for standard 5V logic systems.
- Q: What is the output current capability?
- A: It can source 2mA and sink 80mA, providing strong drive for capacitive loads.
- Q: What package is available?
- A: It comes in a 14-pin DIP (0.300", 7.62mm) package, ideal for through-hole PCB mounting.
MC3459P.pdf
- Q: What is the logic family of the MC3459P?
- A: The MC3459P belongs to the MC3459 logic family, designed for address driver applications.
- Q: What is the function of this IC?
- A: It is a 4-channel Address Driver used to buffer and drive address lines in memory systems.
- Q: How many channels does the MC3459P have?
- A: It features 4 independent channels for driving multiple address signals.
- Q: What is the supply voltage range?
- A: The operating voltage range is 4.75V to 5.25V, making it suitable for standard 5V logic systems.
- Q: What is the output current capability?
- A: It can source 2mA and sink 80mA, providing strong drive for capacitive loads.
- Q: What package is available?
- A: It comes in a 14-pin DIP (0.300", 7.62mm) package, ideal for through-hole PCB mounting.