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| Product attributes | Property Value |
| Manufacturer | Advanced Micro Devices |
| Product Series | |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Transceiver, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 4 |
| Input Type | - |
| Output Type | Open Collector |
| Current - Output High, Low | 800µA, 20mA |
| Voltage - Supply | 4.75V ~ 5.25V |
| Operating Temperature | 0°C ~ 70°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 16-DIP |
| Supplier Device Package | 16-DIP |
The AM26S12PC from Advanced Micro Devices is a single-channel, non-inverting transceiver designed for 5V systems. It features an open collector output capable of sinking 20mA, with a low input current of 800µA. Operating from 4.75V to 5.25V, it is compatible with standard TTL logic levels. The 16-pin DIP package is easy to handle and breadboard. This device is suitable for bidirectional data lines, wired-OR logic, and level shifting applications in industrial and legacy computing systems.
- Open Collector Output: Enables wired-OR connections and allows external pull-up to different voltage levels, providing design flexibility.
- High Sink Current (20mA): Can directly drive relays, LEDs, or other low-power loads.
- Standard 5V Operation: Compatible with legacy TTL systems, simplifying integration into existing designs.
- Bidirectional Transceiver: Reduces component count by combining transmit and receive functions in one package.
5V Bidirectional Data Lines
Use the AM26S12PC to interface a 5V microcontroller with a bidirectional data bus. The transceiver function allows data to flow in both directions, controlled by a direction pin.
Open Collector Wired-OR Logic
The open collector output enables wired-OR connections, where multiple outputs can be tied together to create a logical OR function. This is useful in interrupt lines or shared bus request signals.
Level Shifting to Higher Voltages
By using an external pull-up resistor to a higher voltage (e.g., 12V), the open collector output can shift logic levels from 5V to higher voltage systems, such as industrial sensors.
Legacy TTL System Interfacing
In legacy 5V TTL systems, this transceiver provides a reliable interface for adding new logic modules without redesigning the entire board.
Current Sinking for Relays or LEDs
The output can sink up to 20mA, making it capable of directly driving small relays or LEDs when the input is high, with the pull-up resistor limiting the off-state current.
Test and Measurement Equipment
In bench test equipment, the AM26S12PC can be used to buffer and route signals between different test points, providing isolation and signal conditioning.
- Q: What is the logic family of the AM26S12PC?
- A: This device is not tied to a specific standard logic family like 74LS; it is a proprietary AMD transceiver design.
- Q: What is the function of this IC?
- A: It is a non-inverting transceiver, meaning it can both transmit and receive data on a single line.
- Q: How many channels does it have?
- A: It has 1 channel, suitable for single-bit bidirectional communication.
- Q: What type of output does it have?
- A: It features an Open Collector output, requiring an external pull-up resistor to define the high-level voltage.
- Q: What is the operating voltage range?
- A: It operates from 4.75V to 5.25V, making it compatible with standard 5V TTL systems.
- Q: What package is available?
- A: It comes in a 16-pin DIP (Dual Inline Package).
- Q: What is the logic family of the AM26S12PC?
- A: This device is not tied to a specific standard logic family like 74LS; it is a proprietary AMD transceiver design.
- Q: What is the function of this IC?
- A: It is a non-inverting transceiver, meaning it can both transmit and receive data on a single line.
- Q: How many channels does it have?
- A: It has 1 channel, suitable for single-bit bidirectional communication.
- Q: What type of output does it have?
- A: It features an Open Collector output, requiring an external pull-up resistor to define the high-level voltage.
- Q: What is the operating voltage range?
- A: It operates from 4.75V to 5.25V, making it compatible with standard 5V TTL systems.
- Q: What package is available?
- A: It comes in a 16-pin DIP (Dual Inline Package).
AM26S12PC.pdf