Preliminary
Patent No.:
M371298 (Taiwan)
ZL 2010 2 0300629.5 (CHINA)
TTP112
ELECTRICAL CHARACTERISTICS
‧Absolute Maximum Ratings
Parameter
Operating Temperature
Storage Temperature
Power Supply Voltage
Input Voltage
Symbol
Conditions
─
Value
-20 ~ +70
-50 ~ +125
VSS-0.3 ~ VSS+5.5
VSS-0.3 ~ VDD+0.3
Unit
℃
℃
V
TOP
TSTG
VDD
VIN
─
Ta=25°C
Ta=25°C
V
Note：VSS symbolizes for system ground
‧DC/AC Characteristics：(Test condition at room temperature=25℃)
Parameter
Symbol
VDD
Test Condition
Min. Typ. Max. Unit
Operating Voltage
4.5
-
5.0
6.8
-
V
System oscillator
Sensor oscillator
Operating Current
Fosc
Tosc
1.2M
2.0M
Hz
VDD=5.0V, R_CK=100KΩ
VDD=5.0V, R_TCK=68KΩ
IOP VDD=5.0V ,
Touch Mode
-
600 1200
No load
Switch mode
250
500
R_CK=100KΩ
uA
R_TCK=68KΩ
Input Ports
Input Ports
VIL Input Low Voltage
VIH Input High Voltage
0
0.8
-
-
-
0.2 VDD
1.0 VDD
Output Port Sink Current
IOL VDD=5.0V, VOL=0.5V
Pin : PWM, BUZZER
IOH VDD=5.0V, VOH=VDD-0.5V
Pin : PWM, BUZZER
25
-
mA
mA
ohm
Output Port Source Current
Input Pin Pull-low Resistor
-
8
-
RPL VDD=5.0V,
130K
300K
139K
Pin : NSSEL, SEL,VCHK
Input Pin Pull-high Resistor RPH VDD=5.0V,
Pin : TI
VDD=5.0V,
ohm
Pin : TSSEL, SEN,OPT1,OPT2
12’/07/12
Page 3 of 12
Ver 1.0
Reference Only
TTELEC [ TT Electronics ]
