DataSheet.es    


PDF CAP1133 Data sheet ( Hoja de datos )

Número de pieza CAP1133
Descripción 3 Channel Capacitive Touch Sensor
Fabricantes Microchip 
Logotipo Microchip Logotipo



Hay una vista previa y un enlace de descarga de CAP1133 (archivo pdf) en la parte inferior de esta página.


Total 30 Páginas

No Preview Available ! CAP1133 Hoja de datos, Descripción, Manual

CAP1133
3 Channel Capacitive Touch Sensor with 3 LED Drivers
General Description
The CAP1133, which incorporates RightTouch® tech-
nology, is a multiple channel Capacitive Touch sensor
with multiple power LED drivers. It contains three (3)
individual capacitive touch sensor inputs with program-
mable sensitivity for use in touch sensor applications.
Each sensor input automatically recalibrates to com-
pensate for gradual environmental changes.
The CAP1133 also contains three (3) LED drivers that
offer full-on / off, variable rate blinking, dimness con-
trols, and breathing. Each of the LED drivers may be
linked to one of the sensor inputs to be actuated when
a touch is detected. As well, each LED driver may be
individually controlled via a host controller.
The CAP1133 includes Multiple Pattern Touch recogni-
tion that allows the user to select a specific set of but-
tons to be touched simultaneously. If this pattern is
detected, then a status bit is set and an interrupt gen-
erated.
Additionally, the CAP1133 includes circuitry and sup-
port for enhanced sensor proximity detection.
The CAP1133 offers multiple power states operating at
low quiescent currents. In the Standby state of opera-
tion, one or more capacitive touch sensor inputs are
active and all LEDs may be used.
Deep Sleep is the lowest power state available, draw-
ing 5uA (typical) of current. In this state, no sensor
inputs are active. Communications will wake the
device.
Applications
• Desktop and Notebook PCs
• LCD Monitors
• Consumer Electronics
• Appliances
Features
• Three (3) Capacitive Touch Sensor Inputs
- Programmable sensitivity
- Automatic recalibration
- Individual thresholds for each button
• Proximity Detection
• Multiple Button Pattern Detection
• Calibrates for Parasitic Capacitance
• Analog Filtering for System Noise Sources
• Press and Hold feature for Volume-like Applica-
tions
• SMBus / I2C Compliant Communication Interface
• Low Power Operation
- 5uA quiescent current in Deep Sleep
- 50uA quiescent current in Standby (1 sensor
input monitored)
- Samples one or more channels in Standby
• Three (3) LED Driver Outputs
- Open Drain or Push-Pull
- Programmable blink, breathe, and dimness
controls
- Can be linked to Capacitive Touch Sensor
inputs
• Available in 10-pin 3mm x 3mm RoHS compliant
DFN package
2015 Microchip Technology Inc.
DS00001625B-page 1

1 page




CAP1133 pdf
CAP1133
2.0 PIN DESCRIPTION
FIGURE 2-1:
CAP1133 Pin Diagram (10-Pin DFN)
CAP1133
3mm x 3mm DFN
ALERT# 1
10 CS1
SMDATA 2
9 CS2
SMCLK 3
8 CS3
VDD 4
7 LED3
LED1 5
6 LED2
GND
TABLE 2-1: PIN DESCRIPTION FOR CAP1133
Pin
Number
1
2
3
4
5
6
7
Pin Name
ALERT#
SMDATA
SMCLK
VDD
LED1
LED2
LED3
Pin Function
Active low alert / interrupt output usable for SMBus alert
Active high alert / interrupt output usable for SMBus alert
Bi-directional, open-drain SMBus data - requires pull-up
SMBus clock input - requires pull-up resistor
Positive Power supply
Open drain LED 1 driver (default)
Push-pull LED 1 driver
Open drain LED 2 driver (default)
Push-pull LED 2 driver
Open drain LED 3 driver (default)
Push-pull LED 3 driver
Pin Type
OD (5V)
DO
DIOD (5V)
DI (5V)
Power
OD (5V)
DO
OD (5V)
DO
OD (5V)
DO
Unused
Connection
Connect to
Ground
leave open
n/a
n/a
Connect to
Ground
leave open or
connect to Ground
Connect to
Ground
leave open or
connect to Ground
Connect to
Ground
leave open or
connect to Ground
2015 Microchip Technology Inc.
DS00001625B-page 5

5 Page





CAP1133 arduino
CAP1133
4.2.5 SMBUS STOP BIT
The SMBus Stop bit is defined as a transition of the SMBus Data line from a logic ‘0’ state to a logic ‘1’ state while the
SMBus clock line is in a logic ‘1’ state. When the CAP1133 detects an SMBus Stop bit and it has been communicating
with the SMBus protocol, it will reset its slave interface and prepare to receive further communications.
4.2.6 SMBUS TIMEOUT
The CAP1133 includes an SMBus timeout feature. Following a 30ms period of inactivity on the SMBus where the
SMCLK pin is held low, the device will timeout and reset the SMBus interface.
The timeout function defaults to disabled. It can be enabled by setting the TIMEOUT bit in the Configuration register
(see Section 6.6, "Configuration Registers").
4.2.7
SMBUS AND I2C COMPATIBILITY
The major differences between SMBus and I2C devices are highlighted here. For more information, refer to the SMBus
2.0 and I2C specifications. For information on using the CAP1133 in an I2C system, refer to AN 14.0 Dedicated Slave
Devices in I2C Systems.
1. CAP1133 supports I2C fast mode at 400kHz. This covers the SMBus max time of 100kHz.
2. Minimum frequency for SMBus communications is 10kHz.
3. The SMBus slave protocol will reset if the clock is held at a logic ‘0’ for longer than 30ms. This timeout function-
ality is disabled by default in the CAP1133 and can be enabled by writing to the TIMEOUT bit. I2C does not have
a timeout.
4. The SMBus slave protocol will reset if both the clock and data lines are held at a logic ‘1’ for longer than 200µs
(idle condition). This function is disabled by default in the CAP1133 and can be enabled by writing to the TIME-
OUT bit. I2C does not have an idle condition.
5. I2C devices do not support the Alert Response Address functionality (which is optional for SMBus).
6. I2C devices support block read and write differently. I2C protocol allows for unlimited number of bytes to be sent
in either direction. The SMBus protocol requires that an additional data byte indicating number of bytes to read /
write is transmitted. The CAP1133 supports I2C formatting only.
4.3 SMBus Protocols
The CAP1133 is SMBus 2.0 compatible and supports Write Byte, Read Byte, Send Byte, and Receive Byte as valid
protocols as shown below.
All of the below protocols use the convention in Table 4-1.
TABLE 4-1: PROTOCOL FORMAT
Data Sent to Data Sent to the
Device
HOst
Data sent
Data sent
4.3.1 SMBUS WRITE BYTE
The Write Byte is used to write one byte of data to a specific register as shown in Table 4-2.
TABLE 4-2: WRITE BYTE PROTOCOL
Start
Slave
Address
WR ACK
1 ->0
0101_000
0
0
Register
Address
XXh
ACK
0
Register Data
XXh
ACK
0
Stop
0 -> 1
4.3.2 SMBUS READ BYTE
The Read Byte protocol is used to read one byte of data from the registers as shown in Table 4-3.
2015 Microchip Technology Inc.
DS00001625B-page 11

11 Page







PáginasTotal 30 Páginas
PDF Descargar[ Datasheet CAP1133.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
CAP11333 Channel Capacitive Touch SensorMicrochip
Microchip

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar