Holtek BS82B12A-3 - Page 22

Rev. 1.20 22 January 23, 2015 Rev. 1.20 23 January 23, 2015
BS82B12A-3/BS82C16A-3/BS82D20A-3
Touch Key 8-Bit Flash MCU with LED/LCD Driver
BS82B12A-3/BS82C16A-3/BS82D20A-3
Touch Key 8-Bit Flash MCU with LED/LCD Driver
Touch Key RC OSC = 1000kHz
Symbol Parameter
Test Conditions
Min. Typ. Max. Unit
V
DD
Condition
I
KEYOSC
Only Sensor (KEY) Oscillator
Operating Current
3V
*f
SENOSC
=1000kHz, MnFILEN=0
— 40 80
μA
5V — 80 160
3V
*f
SENOSC
=1000kHz, MnFILEN=1
— 60 120
μA
5V — 100 200
I
REFOSC
Only Reference Oscillator
Operating Current
3V
*f
REFOSC
=1000kHz,
MnTSS=0, MnFILEN=0
— 40 80
μA
5V — 80 160
3V
*f
REFOSC
=1000kHz,
MnTSS=0, MnFILEN=1
— 40 80
μA
5V — 80 160
3V
*f
REFOSC
=1000kHz,
MnTSS=1, MnFILEN=0
— 40 80
μA
5V — 80 160
3V
*f
REFOSC
=1000kHz,
MnTSS=1, MnFILEN=1
— 60 120
μA
5V — 150 300
C
KEYOSC
Sensor (KEY) Oscillator
External Capacitance
5V *f
SENOSC
=1000kHz 5 10 20 pF
C
REFOSC
Reference Oscillator Internal
Capacitance
5V *f
SENOSC
=1000kHz 5 10 20 pF
f
KEYOSC
Sensor (KEY) Oscillator
Operating Frequency
5V
*External Capacitance
=1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
… 50pF
150 1000 2500 kHz
f
REFYOSC
Reference Oscillator
Operating Frequency
5V
*Internal Capacitance
=1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
… 50pF
150 1000 2500 kHz
Note:*f
SENOSC
=1000kHz:adjusttheKEYncapacitortomaketheSensorOscillatorfrequency=1000kHz.
*f
REFOSC
=1000kHz:adjusttheReferenceOscillatorinternalcapacitortomaketheReferenceOscillator
frequency=1000kHz.