8212 Single Input/Output (I/O) Port Manufacturer,Supplier and Exporter in India
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Product Code : SCL-EELE-12717
Indian Lab Suppliers supplies the 8212 Single Input/Output (I/O) Port (Product ID: 12717) as part of its electronics engineering lab equipment range. It studies the input and output modes of the 8212 8-bit input/output port used in microprocessor systems.
Quick Answer
The 8212 is an 8-bit latch with tri-state output buffers, device-select inputs and a mode input. In output mode it latches data from the bus and holds it for a peripheral; in input mode it latches data from a device when strobed, ready to be read onto the bus. SPDT switches set the data and control lines, a 74244 tri-state buffer and a BC177 transistor complete the circuit, and terminals allow waveforms to be observed. A 5 V, 50 mA regulated supply is built in, and the board runs from 230 V ±10%, 50 Hz mains with fuse and jewel light. Operating instructions with theory, design procedure and report suggestions are supplied.
Key Specifications
| Parameter | Detail |
|---|---|
| Port IC | 8212, 8-bit I/O port |
| Buffer | 74244 tri-state |
| Other parts | BC177 transistor; SPDT switches |
| Modes studied | Input mode; output mode |
| Internal supply | 5 V DC, 50 mA, IC regulated |
| Mains supply | 230 V ±10%, 50 Hz, with fuse and jewel light |
Where This Is Used
Used in microprocessor interfacing courses before the programmable 8255 Programmable Peripheral Interface (Product ID: 12719) and 8155 Simple Programmable Interface (Product ID: 12718). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
What is the 8212 used for?
As a latched 8-bit input or output port between a microprocessor bus and a peripheral.
Which modes are studied?
Input mode and output mode.
Is the board self-contained?
Yes, it has its own 5 V regulated supply.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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