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SC84510EP Datasheet(PDF) 5 Page - Silan Microelectronics Joint-stock |
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SC84510EP Datasheet(HTML) 5 Page - Silan Microelectronics Joint-stock |
5 / 17 page Silan Semiconductors SC84510 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2000.12.31 5 PIN DESCRIPTION Pin Name I/O Description OPT I/O INPUT: 200k Ω pull low to VSS. When OPT is connected to VDD, SC84510 will enter test mode. In test mode, L will be the output of X1, while M will be the output of X2. Toggling R key can change these output to be Y1, Y2 or Z1, Z2 respectively. OUTPUT: 2kHz Z-axis LED-driving source. “1” = VDD, “0” = floating High duty is about 60 µs. OSC OUT O OSCR I RC mode oscillation with 50k Ω resistor. CLK I/O Connect to 8042 auxiliary port CLK line. DATA I/O Connect to 8042 auxiliary port DATA line. R M L I Three key-switches inputs. 200k Ω resistor pull low. X1 X2 Y1 Y2 I Three step dynamic input impedance. Use current comparator to measure photo-couples “ON”, or “OFF”. Z1 Z2 I Z-axis input. Photo mode: Three steps dynamic input impedance. Current comparator input. Key mode: 200k Ω resistor pull low. 7 levels increased by “M” key. Voltage mode: 200k Ω resistor pull low. 7 levels voltage comparator. Mechanical mode: 13.2k Ω resistor pull low. VSS Negative power. VDD Power line. |
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