16 x 4 Bit Static Random Access Memory (7489) Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12723
Indian Lab Suppliers supplies the 16 x 4 Bit Static Random Access Memory (7489) (Product ID: 12723) as part of its electronics engineering lab equipment range. It demonstrates read, write and chip-enable operation of the 7489, a 16 × 4 bit static RAM.
Quick Answer
The 7489 holds 16 words of 4 bits, addressed by 4 address lines. Students set the address and data on switches, write a word, read it back on the output LEDs and see how chip enable controls access. A logic-indication terminal checks the state of individual IC pins, and a pulse generator can be connected at the marked terminals for dynamic checking; please confirm at quotation whether one is supplied. 4 mm patch cords are supplied. 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 |
|---|---|
| Memory IC | 7489 static RAM, 16 × 4 bit |
| Operations | Read, write, chip enable; dynamic checking with pulse generator |
| Inputs | Switches for address and data |
| Indicators | LEDs for read-out data; logic-indication terminal |
| 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
The simplest of the memory boards; larger memories are on the 1024 x 4 Bit Static Random Access Memory (2114) (Product ID: 12707) and the 1024 x 1 Bit Static Random Access Memory (2102) (Product ID: 12724). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
How many words does the 7489 store?
16 words of 4 bits each.
How many address lines are used?
Four.
How can pin states be checked?
With the built-in logic-indication terminal.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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