Application | Industrial |
Technology | 2000 |
Manufacturer | VLSI Tech |
Type | Semester Thesis |
Package | DIP64 |
Dimensions | 6400μm x 3200μm |
Gates | 1600 |
Voltage | 5 V |
Power | 125 mW (10MHz, 5V) |
Clock | 44 MHz |
This chip is designed to be a cost counter for shared telephones. It allows every user that has access to the telephone an account and a password. The call duration of each user is kept separatelty and displayed on an external display. Data input is through the standard telephone dial.