5 and 6 Channel Capacitive Touch Sensor
Datasheet
Table 2.2 Electrical Specifications (continued)
VDD = 3V to 3.6V, TA = 0°C to 100°C, all Typical values at TA = 27°C unless otherwise noted.
CHARACTERISTIC
SYMBOL
MIN
TYP
MAX
UNIT
CONDITIONS
Maximum Base
Capacitance
CBASE
50
pF
Pad untouched
Detectable
Capacitive Shift
ΔCTOUCH
0.1
2
pF
Pad touched
I/O Pins - SPI_CS#, SPI_MOSI, and ALERT# pins
Output Low Voltage
Input High Voltage
Input Low Voltage
Leakage Current
VOL
VIH
0.4
V
V
ISINK_IO = 4mA
2.0
VIL
0.8
±5
V
ILEAK
uA
powered or unpowered
TA < 85°C
SMDATA / BC_DATA / SPI_MSIO / SPI_MISO and SMCLK / BC_CLK / SPI_CLK pins
Output Low Voltage
Output High Voltage
VOL
VOH
0.4
V
V
ISINK_IO = 8mA
VDD
0.4
-
ISOURCE_IO = 8mA
Input High Voltage
Input Low Voltage
Leakage Current
VIH
VIL
2.0
V
V
0.8
±5
ILEAK
uA
powered or unpowered
TA < 85°C
pull-up voltage < 3.6V
SMBus First
tSMB
15
ms
Communication
SMBus Timing (CAP1006-1 only)
pF
Input Capacitance
Clock Frequency
Spike Suppression
CIN
fSMB
tSP
5
10
400
50
kHz
ns
Bus free time Start to
Stop
tBUF
1.3
us
Setup Time: Start
Setup Time: Stop
Data Hold Time
tSU:STA
tSU:STP
tHD:DAT
tSU:DAT
tLOW
0.6
0.6
0.6
0.6
1.3
0.6
us
us
us
us
us
us
ns
ns
6
Data Setup Time
Clock Low Period
Clock High Period
Clock/Data Fall time
Clock/Data Rise time
72
tHIGH
tFALL
300
300
Min = 20+0.1CLOAD ns
Min = 20+0.1CLOAD ns
tRISE
SMSC CAP1005 / CAP1006
Revision 1.1 (08-05-09)
DATAS11HEET
SMSC [ SMSC CORPORATION ]
