Holtek BS82B12A-3 - Page 23

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 =1500kHz
Symbol Parameter
Test Conditions
Min. Typ. Max. Unit
V
DD
Condition
I
KEYOSC
Only Sensor (KEY) Oscillator
Operating Current
3V
*f
SENOSC
=1500kHz, MnFILEN=0
— 60 120
μA
5V — 120 240
3V
*f
SENOSC
=1500kHz, MnFILEN=1
— 90 180
μA
5V — 150 300
I
REFOSC
Only Reference Oscillator
Operating Current
3V
*f
REFOSC
=1500kHz,
MnTSS=0, MnFILEN=0
— 60 120
μA
5V — 120 240
3V
*f
REFOSC
=1500kHz,
MnTSS=0, MnFILEN=1
— 60 120
μA
5V — 120 240
3V
*f
REFOSC
=1500kHz,
MnTSS=1, MnFILEN=0
— 60 120
μA
5V — 120 240
3V
*f
REFOSC
=1500kHz,
MnTSS=1, MnFILEN=1
— 90 180
μA
5V — 225 450
C
KEYOSC
Sensor (KEY) Oscillator
External Capacitance
3V
*f
SENOSC
=1500kHz
4 8 16
pF
5V 5 10 20
C
REFOSC
Reference Oscillator Internal
Capacitance
3V
*f
SENOSC
=1500kHz
4 8 16
pF
5V 5 10 20
f
KEYOSC
Sensor (KEY) Oscillator
Operating Frequency
3V
*
External Capacitance
=1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
… 50pF
150 1500 3000
kHz
5V 150 1500 3000
f
REFYOSC
Reference Oscillator
Operating Frequency
3V
*
Internal Capacitance
=1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
… 50pF
150 1500 3000
kHz
5V 150 1500 3000
Note:*f
SENOSC
=1500kHz:adjusttheKEYncapacitortomaketheSensorOscillatorfrequency=1500kHz.
*f
REFOSC
=1500kHz:adjusttheReferenceOscillatorinternalcapacitortomaketheReferenceOscillator
frequency=1500kHz.