參數(shù)資料
型號： CAP1028-1-BP-TR
廠商： STANDARD MICROSYSTEMS CORP
元件分類： 模擬信號調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, QCC20
封裝： 4 X 4 MM, ROHS COMPLAINT, QFN-20
文件頁數(shù)： 69/69頁
文件大?。?/td> 948K
代理商： CAP1028-1-BP-TR
8 Channel Capacitive Touch Sensor with 2 LED Drivers
Datasheet
SMSC CAP1028
9
Revision 1.0 (06-16-09)
DATASHEET
The pin types are described in detail below. All pins labelled with (5V) are 5V tolerant.
3
SMDATA /
BC_DATA /
SPI_MSIO /
SPI_MISO
SMDATA - Bi-directional, open-drain SMBus data - requires
pull-up resistor
DIOD (5V)
BC_DATA - Bi-directional, open-drain BC-Link data - requires
pull-up resistor
DIO
SPI_MSIO - SPI Master-Slave-In-Out bidirectional port when
used in bi-directional mode
DIO
SPI_MISO - SPI Master-In-Slave-Out port when used in normal
mode
DO
4
SMCLK /
BC_CLK /
SPI_CLK
SMCLK - SMBus clock input - requires pull-up resistor
DI (5V)
BC_CLK - BC-Link clock input
DI (5V)
SPI_CLK - SPI clock input
DI (5V)
5
N/C
Not Internally Connected
n/a
6LED1
Open drain LED 1 driver (default)
OD (5V)
Push-pull LED 1 driver
DO
7LED2
Open drain LED 2 driver (default)
OD (5V)
Push-pull LED 2 driver
DO
8
N/C
Not Internally Connected
n/a
9
RESET
Active high soft reset for system - resets all registers to default
values
DI (5V)
10
ALERT# /
BC_IRQ#
ALERT# - Active low alert / interrupt output usable for SMBus
alert or SPI interrupt
OD (5V)
BC_IRQ# - Active low interrupt / optional for BC-Link
OD (5V)
11
ADDR_COMM
Address / communications select pin - pull-down resistor
determines address / communications mechanism
AI
12
CS8
Capacitive Touch Sensor 8
AIO
13
CS7
Capacitive Touch Sensor 7
AIO
14
CS6
Capacitive Touch Sensor 6
AIO
15
CS5
Capacitive Touch Sensor 5
AIO
16
CS4
Capacitive Touch Sensor 4
AIO
17
CS3
Capacitive Touch Sensor 3
AIO
18
CS2
Capacitive Touch Sensor 2
AIO
19
CS1
Capacitive Touch Sensor 1
AIO
20
VDD
Positive Power supply
Power
Bottom Pad
GND
Ground
Power
Table 1.1 Pin Description for CAP1028 (continued)
PIN
NUMBER
PIN NAME
PIN FUNCTION
PIN TYPE
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