5 and 6 Channel Capacitive Touch Sensor
Datasheet
Table 2.2 Electrical Specifications (continued)
V
DD
= 3V to 3.6V, T
A
= 0°C to 100°C, all Typical values at T
A
= 27°C unless otherwise noted.
CHARACTERISTIC
Maximum Base
Capacitance
Detectable
Capacitive Shift
SYMBOL
C
BASE
MIN
TYP
50
0.1
2
MAX
UNIT
pF
pF
CONDITIONS
Pad untouched
Pad touched
Δ
C
TOUCH
I/O Pins - SPI_CS#, SPI_MOSI, and ALERT# pins
Output Low Voltage
Input High Voltage
Input Low Voltage
Leakage Current
V
OL
V
IH
V
IL
I
LEAK
2.0
0.8
±5
0.4
V
V
V
uA
powered or unpowered
T
A
< 85°C
I
SINK_IO
= 4mA
SMDATA / BC_DATA / SPI_MSIO / SPI_MISO and SMCLK / BC_CLK / SPI_CLK pins
Output Low Voltage
Output High Voltage
Input High Voltage
Input Low Voltage
Leakage Current
V
OL
V
OH
V
IH
V
IL
I
LEAK
V
DD
-
0.4
2.0
0.8
±5
0.4
V
V
V
V
uA
powered or unpowered
T
A
< 85°C
pull-up voltage < 3.6V
I
SINK_IO
= 8mA
I
SOURCE_IO
= 8mA
SMBus First
Communication
t
SMB
15
ms
SMBus Timing (CAP1006-1 only)
Input Capacitance
Clock Frequency
Spike Suppression
Bus free time Start to
Stop
Setup Time: Start
Setup Time: Stop
Data Hold Time
Data Setup Time
Clock Low Period
Clock High Period
Clock/Data Fall time
Clock/Data Rise time
C
IN
f
SMB
t
SP
t
BUF
t
SU:STA
t
SU:STP
t
HD:DAT
t
SU:DAT
t
LOW
t
HIGH
t
FALL
t
RISE
1.3
0.6
0.6
0.6
0.6
1.3
0.6
300
300
6
72
10
5
400
50
pF
kHz
ns
us
us
us
us
us
us
us
ns
ns
Min = 20+0.1C
LOAD
ns
Min = 20+0.1C
LOAD
ns
SMSC CAP1005 / CAP1006
11
Revision 1.1 (08-05-09)
DATASHEET
SMSC [ SMSC CORPORATION ]
