background image

 

 

 

 

 
 
 

SC7020x User Manual 

 

Low power single touch single output IC 

Rev. 1.1 

 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
P

lease be reminded about following CMS’s policies on intellectual property 

 

Cmsemicron  Limited 

(denoted  as  ‘our  company’  for  later  use)  has  already  applied  for  relative  patents  and  entitled  legal 

rights. Any patents related to CMS’s MCU or other products is not authorized to use. Any individual, organization or company 
which  infringes  our  company’s  interlectual  property  rights will  be  forbidden  and  stopped  by  our  company  through  any  legal 
actions, and our company will claim the lost and required for compensation of any damage to the company. 
 

 The name of Cmsemicron Limited and logo are both trademarks of our company 

 
* Our company preserve the rights to further elaborate on the improvements about product functions, reliability and design in 
this manual. However, our company is not responsible for any usage about this manual. The applications and their purposes in 
this  manual  are  just  for  clarification,  our  company  does  not  guarantee  that  these  applications  are  feasible  without  further 
improvements  and  changes,  and  does  not  recommend  any  usage  of  the  products  in  areas  where  peop

le’s  safety  is 

endangered during accident. Our company’s products are not authorized to be used for life-saving or life support devices and 
systems. our company has the right to change or improve the product without any notification, for latest news, please visit our 
website: www.mcu.com.cn 
 
P

lease be reminded about following CMS’s policies on intellectual property 

Содержание SC7020 Series

Страница 1: ...th trademarks of our company Our company preserve the rights to further elaborate on the improvements about product functions reliability and design in this manual However our company is not responsib...

Страница 2: ...0201 SC70202 Pin Diagram 5 5 2 SC70205 Pin Diagram 6 6 FUNCTION DESCRIPTION 7 6 1 Output Mode and Pad Option 7 6 2 Maximum output time of key 7 6 3 Low Power Mode 7 6 4 Sensitivity adjustment 8 7 APPL...

Страница 3: ...nt anti interference performance built in voltage regulator circuit power on reset low voltage reset function and environment adaptive algorithm and other measures Low power standby current Typical va...

Страница 4: ...ture Diagram Sensor oscillator circuit Sensor Reference detecting circuit Timing counter function option control circuit System oscillator circuit Regulator circuit Touch detecting circuit Key on Timi...

Страница 5: ...output pin 2 GND P Negative power supply ground 3 TK I Touch key sensor input pin 4 AHLB I PL Output QC active high or low selection 0 Default Active high 1 Active low 5 VDD P Positive power supply 6...

Страница 6: ...ive power supply ground 3 TK I Touch key sensor input pin 4 AHLB I PL Output QC active high or low selection 0 Default Active high 1 Active low 5 VDD P Positive power supply 6 TOG I PL Output type sel...

Страница 7: ...output time of key Objects covering the touchpad or sudden changes in the environment may cause touch detection to remain active The system will return to the initial state of power on and the output...

Страница 8: ...conditions are fixed Using a larger touchpad size can increase sensitivity Otherwise it can decrease sensitivity But the touchpad size must use in the effective scope 2 By the panel thickness Under o...

Страница 9: ...nclude the metal or the electric element The paints on the surfaces are the same 4 The C1 capacitor 104 or larger must be used between VDD and GND and should be routed with very short tracks to the de...

Страница 10: ...TA 25 unless otherwise indicated Parameter Symbol Conditions Min Typ Max Unit Working voltage VDD 2 4 3 5 5 V Internal Regulator Output VREG 2 0 2 2 2 4 V High level input voltage VIH 0 75 1 0 VDD Lo...

Страница 11: ...9 1 SOT23 6 Symbol Millimeter Min Nom Max A 1 25 A1 0 04 0 10 A2 1 00 1 10 1 20 A3 0 55 0 65 0 75 b 0 38 0 48 b1 0 37 0 40 0 43 c 0 11 0 21 c1 0 10 0 13 0 16 D 2 72 2 92 3 12 E 2 60 2 80 3 00 E1 1 40...

Страница 12: ...12 12 SC7020x www mcu com cn Rev 1 1 10 Version Revision Version number Time Revised content V1 0 May 2020 Original version V1 1 Dec 2021 Delete some chip products...

Отзывы: