SC84502AP Silan, SC84502AP Datasheet

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SC84502AP

Manufacturer Part Number
SC84502AP
Description
Manufacturer
Silan
Datasheet

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Part Number:
SC84502AP
Manufacturer:
PHI
Quantity:
6 242
PS/2 MOUSE CONTROLLER
DESCRIPTION
PS/2 mouse device. This single chip can interface three key-
switches and four photo-couples direct to 8042. SC84502 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.
generated when the grid is partially closed or opened. These noise
are usually mistaken for movement signals by conventional mouse
controller and the cursor of the display screen is thus moved
frequently up and down or back and forth. This will consumes a
great amount of energy. The SC84502 PS/2 mouse controller
provides noise immunity circuits to eliminate this noise In order to
reduce energy consumption.
FEATURES
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
* Being compatible with PS/2 mouse mode
* Built-in noise immunity circuit
* Low power dissipation
* RC oscillation
* Three key-switches and four photo-couples inputs
* Both key-press and key-release debounce interval 12ms
* Through three key-switches input, SC84502 can exert seven
* The motion detector of the SC84502 could sense 8m/sec
The SC84502 Mouse Controller is specially designed to control
In the conventional mouse, a great number of noises are
different output
maximum with 200 DPI wheels
ORDERING INFORMATION
APPLICATIONS
* Optical mouse or pen-mouse
* Mechanical mouse or pen-mouse
* Optomechanical mouse or pen-mouse
* Mechanical track ball
* Optomechanical track ball
SC84502AP
SC84502BP
Device
DIP-14-300-2.54
DIP-16-300-2.54
REV: 1.1
Package
SC84502
DIP-16
DIP-14
Page 1 of 15
2004.08.03

Related parts for SC84502AP

SC84502AP Summary of contents

Page 1

... The motion detector of the SC84502 could sense 8m/sec maximum with 200 DPI wheels HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC84502 DIP-14 DIP-16 ORDERING INFORMATION Device Package SC84502AP DIP-14-300-2.54 SC84502BP DIP-16-300-2.54 APPLICATIONS * Optical mouse or pen-mouse * Mechanical mouse or pen-mouse * Optomechanical mouse or pen-mouse * Mechanical track ball * Optomechanical track ball REV: 1 ...

Page 2

... Low Input Voltage, Other Pins High Input Voltage, Other Pins L,M,R Input Current PS/2 mouse mode DATA,CLK input Current PS/2 mouse mode DATA,CLK low output Voltage L,M,R,X1,X2,Y1,Y2 Input Leakage Current HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn COUNTER TIMING CONTROLLER SYSTEM CLOCK GENERATOR (T =25~70 C) ...

Page 3

... Time from rising Edge of CLK to DATA Transition Time to mouse Inhibit after the 11th CLK to ensure mouse does not start another Transmission Note: The AC timings are measured under using 35kHz system clock signal. X1, X2, Y1, Y2 INPUT IMPEDANCE HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com. =5V. ...

Page 4

... During the scanning period, as long as the photo-couples change their states, the value vertical or horizontal, counter will increase or decrease accordingly OSCR 50k 5% pull low for 35kHz oscillation HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Description Floating: Comparator input. GND: Schmitt trigger input. Short to OSC OUT: Testing Mode. SC84502 REV: 1.1 2004.08.03 Page ...

Page 5

... In stream mode: A data report is sent at the end of a sample interval. ii) In remote mode: A data report is sent in response to Read Data command. iii) Data report format: Byte HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Bit Description 0 Left button status pressed 1 Right button status pressed 2 Middle button status ...

Page 6

... SC84501 receives a Resend command (FE), it transmit its last packet of data the stream mode “ Resend” is received by SC84502 following a 3-byte data packet transmission to the system. SC84502 resend the 3-byte data packet prior to clearing the counter. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Bit ...

Page 7

... Resend ( FE ) i). Any time SC84502 receives an invalid command, it returns a Resend command to the system. ii). When SC84502 receives a Resend command, it retransmits its last packet of data. If the last packet HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Command SC84502 echo code Reset FA, AA, 00 ...

Page 8

... Set Stream Mode (EA) This command sets SC84502 in stream mode. m). Status Request (E9) When this command is issued by the system, SC84502 respond with a 3-byte status report as follows: HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Sample Rate 10/sec 20/sec 40/sec ...

Page 9

... Whenever OPT is connected to OSC OUT, the chip will enter buyer's testing mode. The X direction output signals of comparators will present to L and M pin. Pressing "R" key can toggle the output from X direction to Y direction. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Bit ...

Page 10

... CLK DATA (B) Sending Data CLK DATA AC TIMING POINT Output: V DATA CLK PIN (PS/2 mouse mode) Input: X1, X2, Y1, Y2 PIN CLK, DATA PIN PIN HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com. 1st 2rd 9th Inhibit CLK CLK CLK Tmca Tmci Tmdc Start ...

Page 11

... SC84502 I/O PIN EQUIVALENT CIRCUITS CLK (R,M,L) INTERNAL SIGNAL HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn X1,X2,Y1,Y2: X1,X2,Y1, PP/4 DATA: ( SC84502 MOUSE DIGITAL SIGNAL 13. 13.2k 10k REV: 1.1 2004.08.03 Page ...

Page 12

... HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com. OSC OSC OUT 12 X1 CLK 11 L DATA Vss R SC84502BP SC84502AP SC84502 +5V 10¦Ìf 510 510 + 510 510 REV: 1.1 2004.08.03 Page ...

Page 13

... PACKAGE OUTLINE DIP-14-300-2.54 0.5MIN DIP-16-300-2.54 HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn 2.54 1.52 19.55±0.3 0.46 2.40MAX SC84502 UNIT degree UNIT: mm REV: 1.1 2004.08.03 Page ...

Page 14

... Persons at a work bench should be earthed via a wrist strap. Equipment cases should be earthed. All tools used during assembly, including soldering tools and solder baths, must be earthed. MOS devices should be packed for dispatch in antistatic/conductive containers. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC84502 REV: 1.1 2004 ...

Page 15

... ATTACHMENT Revision History Data REV 2000.12.31 1.0 Original Add the “ APPLICATION CIRCUIT” for DIP-14 2002.06.14 1.1 Modify the “ PACKAGE OUTLINE” HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Description REV: 1.1 SC84502 Page 12 13 2004.08.03 Page ...

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