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SC84510CP Datasheet(PDF) 1 Page - Silan Microelectronics Joint-stock |
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SC84510CP Datasheet(HTML) 1 Page - Silan Microelectronics Joint-stock |
1 / 17 page Silan Semiconductors SC84510 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2000.12.31 1 PS/2 SCROLLING MOUSE CONTROLIER DESCRIPTION The SC84510 Scrolling Mouse Controller is specially designed to control PS/2 mouse device. This single chip can interface three key- switches four photo-couples plus x-axis direct to 8042 controller. SC84510 can receive command and echo status or data format which are compatible with IBM PS/2 mode mouse. Key debouncing circuit is provided to prevent false entry and improve the accuracy. In the traditional mouse, a great number of noises are generated when the grid is partially closed or opened. These noises are usually mistaken for movement signals by traditional mouse controller and the cursor of the display screen is thus moved frequently up and down or back and forth. This will consume a great amount of energy. The SC84510 mouse controller provides noise immunity circuits to eliminate these noises in order to reduce energy consumption. FEATURES * Using 50k ±5% resistor for RC oscillation. * Compatible with legacy PS/2 mouse. * Compatible with Microsoft scrolling mouse. * Built-in noise immunity circuit. * Built-in current comparator for photo-couples input. * Built-in three steps dynamic input impedance. * Three key-switches and four photo-couples inputs. * Both key-press and key-release debounce interval 12 ms. * The sampling rate of motion detector is about 65KHz. DIP-16 * Low power dissipation. * Six types Z direction input: 1. Photo couples input. (Z/1) 2. Key-switches input. 3. Voltage-sensing input. 4. Mechanical input. (Z/1) 5. Photo couples input. (Z/4) 6. Mechanical input. (Z/2) ORDERING INFORMATION SC84510AP DIP-16 Package, Photo couples input. (Z/1) SC84510BP DIP-16 Package, Key-switches input. SC84510CP DIP-16 Package, Voltage-sensing input. SC84510DP DIP-16 Package, Mechanical input. (Z/1) SC84510EP DIP-16 Package, Photo couples input. (Z/4) SC84510FP DIP-16 Package, Mechanical input. (Z/2) |
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