Standard 16-Touch Keys -- BS8116A-3 + HT48R003

Standard 16-Touch Keys
BS8116A-3 + HT48R003
Characteristics
 Touch Keys : BS8116A-3
20-pin SOP + HT48R003
 Operating voltage : 2.2V ~ 5.5V
 Low standby current
 Auto-calibration
 Reliable touch key detections
 High power supply rejection
 Standby and normal operating power modes
 Maximum key on duration time detection
 Power supply voltage drop Rejection function
 16 touch key inputs
2
 I C interface
 3 Option
◆
◆
◆
LSC ‒ lower standby current
Key12 / IRQ function select
Key wakeup function
 Sensitivity adjustment using an external capacitor
 Minimal number of external components
16-pin NSOP
Applications
Consumer Products, Home Appliances, Industrial Control,
Health Care Products, etc.
Application Circuit
LED10
LED11
LED12
OUT
OUT
OUT
OUT
OUT
LED13
LED14
LED15
OUT
LED9
OUT
LED8
OUT
LED7
OUT4
LED6
OUT1
OUT4
OUT3
OUT2
OUT1
LED5
5
4
3
2
1
OUT8
LED4
OUT3
LED3
OUT2
LED2
OUT7
OUT6
OUT5
LED1
JP1
CN1
LED16
5
4
3
2
1
U2
OUT8
OUT7
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
R4
R3
R2
R1
220
220
220
220
1
2
3
4
5
6
7
8
PA4
PC5
PC4
PC3
PC2
PC1
PC0
PA3
PA5
PA6
PA7
VDD
VSS
PA0
PA1
PA2
16
15
14
13
12
11
10
9
LSC
OMS
VDD
GND
IRQ
SCL
SDA
OptionB
OptionA
VDD
C1
HT48R003 16NSOP
0
0
104
BAT1
CR2032
KEY3
KEY2
KEY4
KEY1
KEY5
U1
KEY6
KEY7
KEY8
1
2
3
4
5
6
7
8
9
10
KEY3
KEY4
KEY5
KEY6
KEY7
KEY8
KEY9
KEY10
KEY11
KEY12
KEY2
KEY1
SDA
SCL
VDD
VSS
KEY16/IRQ
KEY15
KEY14
KEY13
20
19
18
17
16
15
14
13
12
11
SDA
SCL
VDD
GND
IRQ
R6 1K VDD
R5 1K
C2
104
CR2032
BAT1
BS8116A-3 20SOP
KEY9
KEY10
KEY11
KEY12
KEY116
KEY15
KEY14
KEY13
GND
VDD
SDA
SCL
IRQ
GND
VDD
SDA
SCL
IRQ