sc84512 Silan, sc84512 Datasheet

no-image

sc84512

Manufacturer Part Number
sc84512
Description
Ps/2 3d Scrolling Mouse Controller
Manufacturer
Silan
Datasheet
PS/2 3D SCROLLING MOUSE CONTROLLER
DESCRIPTION
control PS/2 mouse device. This single chip can interface three
key-switches four photo-couples plus x-axis direct to 8042
controller.
photo-couples inputs of XYZ in a wide range of voltage.
improve the accuracy.
of OPT is connected to VDD. The pin named L is the output of X1,
while M used for X2. Triggering by button of R, the pin of L and M
will be the output of Y1Y2 or Z1Z2.
FEATURES
ORDERING INFORMATION
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
The SC84512 Scrolling Mouse Controller is specially designed to
Containing a self-adjusting circuit, SC84512 can adapt to receive
Key debouncing circuit is provided to prevent false entry and
The test module in SC84512 will run into function when the pin
* Using 50k
* Compatible with legacy PS/2 mouse.
* Compatible with Microsoft scrolling mouse.
* Built-in noise immunity circuit.
* Built-in testing circuit.
* Built-in key debouncing circuit.
* Self-adjusting circuit for photo-couples input.
* The sampling rate of motion detector is about 65KHz.
* Low power dissipation.
SC84512CP
SC84512DP
SC84512AP
SC84512BP
SC84512EP
SC84512FP
Device
5% resistor for RC oscillation.
DIP-16 Package, Photo couples input. (Z/1)
DIP-16 Package, Key-switches input.
DIP-16 Package, Voltage-sensing input.
DIP-16 Package, Mechanical input. (Z/1)
DIP-16 Package, Photo couples input. (Z/4)
DIP-16 Package, Mechanical input. (Z/2)
Package
* Six types Z direction input:
APPLICATIONS
* PS/2 mouse device
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)
DIP-16-300-2.54
REV: 1.0
SC84512
Page 1 of 12
2005.04.22

Related parts for sc84512

sc84512 Summary of contents

Page 1

... Key debouncing circuit is provided to prevent false entry and improve the accuracy. The test module in SC84512 will run into function when the pin of OPT is connected to VDD. The pin named L is the output of X1, while M used for X2. Triggering by button of R, the pin of L and M will be the output of Y1Y2 or Z1Z2 ...

Page 2

... ABSOLUTE MAXIMUM RATINGS Characteristics Temperature Under Bias Storage Temperature range Input Voltage Output Voltage HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn (T =25 C, unless otherwise specified) amb Symbol T OPR T -65 ~ +150 STR V -0 -0.3 ~ +6.0 O SC84512 Value Unit REV: 1.0 2005.04.22 Page ...

Page 3

... prl 0 1 ail V 0.7 V aih 133 xi V 4.5 opt 3.2 I 4 =5V. DD SC84512 Typ. Max. Unit 110 310 k -- 400 -1 ...

Page 4

... mca T mci T mdc T sca T sci T sdc T scd OSCR OSC OUT CLK DATA OPT VSS R SC84512 Min Typ Max Unit 34.3-10% 34.3 34.3+10% kHz -- REV: 1.0 2005 ...

Page 5

... Connect to 8042 auxiliary port DATA line. 6 DATA INPUT: 200k pull low to VSS. When OPT is connected to VDD, SC84512 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 7 OPT change these output Z1, Z2 respectively. ...

Page 6

... Data Output and Input: If required to send data (When CLK is high and DATA is low), SC84512 receive data from the system. and no transmission are started by SC84512 until CLK and DATA both high. DATA is valid at the falling edge of CLK and is read by system at the rising edge of CLK. ...

Page 7

... SC84512 will store the data in its internal buffer and returns DATA and CLK to an active level. If the contention does not occur by the tenth clock, the transmission is complete. Following a transmission, the system inhibits SC84512 by holding CLK low until it can service the input or until the system receives a request to send a response from SC84512 ...

Page 8

... Mechanical mode: The function is the same as photo couples input mode, except there is no noise immunity. Z/1: 1 dot per count. Z/2: 2 dots per count. Counted by Z2 changing phase. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn Value Rate per second 1 2.7 2 6.4 3 9 Value Voltage 1.0V – 1.6V 2 1.6V – 2.2V 3 2.2V - 2.8V 4 2.8V – 3.4V 5 3.4V – 4.0V 6 4.0V – 4.6V 7 4.6V SC84512 REV: 1.0 2005.04.22 Page ...

Page 9

... CLK CLK Tmca Tmci Tmdc Start Parity Bit0-Bit7 Bit 1st 2nd CLK CLK Tscl Tsca Tsdc Tscd Start Bit0-Bit7 Bit -2.6 DD SC84512 10th 11th CLK CLK Line Stop Bit Bit Control Bit 10th 11th CLK CLK Tpi Parity Stop Bit Bit V +0. ...

Page 10

... APPLICATIONS CIRCUITS HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC84512 REV: 1.0 2005.04.22 Page ...

Page 11

... APPLICATIONS CIRCUITS (Continued) HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SC84512 REV: 1.0 2005.04.22 Page ...

Page 12

... 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 SC84512 UNIT: mm REV: 1.0 2005.04.22 Page ...

Related keywords