SC84510 ETC, SC84510 Datasheet
SC84510
Available stocks
Related parts for SC84510
SC84510 Summary of contents
Page 1
... 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 ...
Page 2
Silan Semiconductors VDD OSC OUT Z1 Z2 CLK DATA OPT VSS Z1 3 COMPARATOR Z2 4 OPT COUNTER OSCR 16 OSC.OUT 2 HANGZHOU SILAN MICROELECTRONICS ...
Page 3
Silan Semiconductors Temperature Under Bias Storage Temperature range Input Voltage Output Voltage Operating Voltage Operating Current CLK, DATA Positive-going Threshold Voltage CLK, DATA Negative-going Threshold Voltage DATA, CLK Input Current (pull up resistor) DATA, CLK Low Output Voltage X1, X2, ...
Page 4
Silan Semiconductors Note: 1. All voltage in above table are compared with VSS. 2. All parameters in above table are tested under VDD=5V. 3. CLK & DATA output gates are open drains that connect to pull up resistors. X1, X2, ...
Page 5
... Negative power Power line. DD HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD pull low SC84510 will enter test mode. In test mode, L will DD resistor. resistor pull low. 7 levels increased by “M” key. resistor pull low. 7 levels voltage comparator. resistor pull low. 5 Rev: 1.0 2000.12.31 ...
Page 6
... Data is transmitted only in response to a Read Data command. (d) Wrap Mode: Any byte of data sent by the system, except hex EC (Reset wrap mode) or hex FF (Reset), is returned by SC84510. (B) PS/2 Mouse Data Report: (a) In stream mode: A data report is sent at the end of a sample interval. (b) In remote mode: A data report is sent in response to Read Data command. ...
Page 7
... If CLK is high and DATA is low (request-to-send), data is updated. Data is received from the system and no transmission are started by SC84510 until CLK and DATA both high. If CLK and DATA are both high, the transmission is ready. DATA is valid prior to the falling edge of CLK and beyond the rising edge of CLK. ...
Page 8
... PS/2 Mouse Commands Description: There are 16 valid commands that transmits between the system and SC84510. The “FA” code is always the first response to any valid input received from the system other than a Set Wrap Mode or Resend command. The ...
Page 9
... Resend (FE) a. Any time SC84510 receives an invalid command; it returns a Resend command to the system. b. When SC84510 receives a Resend command, it retransmits its last packet of data. If the last packet was a Resend command, it transmits the packet just prior to the Resend command stream mode if a Resend command is received by SC84510 immediately following a 3-byte data packet transmission to the system ...
Page 10
... Following a Read Data command, the registers are cleared after a data transmission. (l) Set Stream Mode (EA) This command sets SC84510 in stream mode. (m) Status Request (E9) When this command is issued by the system, SC84510 respond with a 3-byte status report as follows ...
Page 11
Silan Semiconductors At the end of a sample interval in the stream mode, the current X and Y data values are converted new values. The sign bits are not involved in this conversion. The conversion is only in stream mode. ...
Page 12
Silan Semiconductors (C) Exiting Microsoft scrolling mode: There are two ways to exit: (a) Power off. (b)Reset command (FF). (A) Photo couples input: Z-axis counter accumulates the Z1, Z2 phase changed by movement. This mode includes noise immunity. Z/1: 1 ...
Page 13
Silan Semiconductors (1) Photo-couples pulse width X1(Y1) X2(Y2) Tr (2) PS/2 Mouse (A) Receiving Data Inhibit CLK CLK Tmca DATA Tmdc Start Bit (B) Sending Data 1st CLK CLK Tscl Tsdc DATA Start Bit Output: V DATA DD CLK PIN ...
Page 14
Silan Semiconductors CLK: PS/2 MOUSE ENABLE CLK INPUT SIGNAL CLK INPUT SIGNAL ( (R,M,L) INTERNAL SIGNAL HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD X1, X2, Y1, Y2: X1,X2,Y1, 13.2kO CLK ...
Page 15
... VDD CLK DATA OSC OUT OPT OSCR VSS R SC84510A/E 15 VDD Y2 14 CLK Y1 13 DATA X2 12 OPT X1 4 OSC OUT OSCR VSS R SC84510B 15 10f 10f Rev: 1.0 2000.12.31 ...
Page 16
... OPT 6 2 OSC OUT 16 OSCR 8 VSS SC84510CP 1 1 VDD 2 5 CLK DATA 5 7 OPT 6 2 OSC OUT 16 OSCR 8 VSS SC84510D/F HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD 10 ...
Page 17
Silan Semiconductors DIP-16-300-2.54 19.4 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD 2.54 1.50 0.46 17 UNIT degree Rev: 1.0 2000.12.31 ...