B6TS-08NF Omron, B6TS-08NF Datasheet

Capacitance Touch Sensors Sensing IC

B6TS-08NF

Manufacturer Part Number
B6TS-08NF
Description
Capacitance Touch Sensors Sensing IC
Manufacturer
Omron
Series
-r
Type
Capacitiver
Datasheets

Specifications of B6TS-08NF

Supply Voltage
- 0.3 V to 6.5 V
Number Of Channels
8
Dimensions
9 mm L x 9 mm W x 1.7 mm H
Output Voltage
-0.3 V to Vsupply + 0.3 V
Power Dissipation
300 mW
Temperature Range
- 20 C to + 85 C
Termination Style
SMD/SMT
Sensitivity
-
Response Time
-
Interface
SPI
Channel Inputs
8 Key
Voltage - Supply
4.5 V ~ 5.5 V
Actuator Type
-
Package / Case
32-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3713050-2A Ver.080123
TYPE: B6TS-08LF
TOUCH-SENSING IC
USER MANUAL
OMRON KURAYOSHI Co., Ltd.
1

Related parts for B6TS-08NF

B6TS-08NF Summary of contents

Page 1

... TOUCH-SENSING IC OMRON KURAYOSHI Co., Ltd. TYPE: B6TS-08LF USER MANUAL 1 3713050-2A Ver.080123 ...

Page 2

... Points to note when using the touch sensor ・ Although OMRON makes constant efforts to improve the quality and reliability of its semiconductor products, products such as this touch sensor may malfunction or break. Before using the touch sensor, please contact OMRON’s business development personnel, if necessary, to confirm ...

Page 3

Configurable data When setting data with commands, consider the environment and conditions for using the touch sensor (e.g., location and circuit configuration) to determine proper values which may not cause functional or safety problems. 3713050-2A Ver.080123 3 ...

Page 4

Proper usage 1. Method of transportation and storage (1) Do not drop or apply any shock to the touch sensor because precision device. If the sensor is thrown or dropped, it may break. (2) When carrying or ...

Page 5

Recommended soldering Conditions Recommended soldering conditions (Pb free) Temperature conditions for mounting the IC chip When mounting the IC chip at a high temperature by using reflow soldering, the melting temperature of the solder depends on the mounting board ...

Page 6

CONTENT 1. Overview 2. Pin connections 3. Operation mode 4. Measurement 5. Serial communication 6. Commands 7. Teaching 8. Electrical characteristics 9. Appearance and dimensions 3713050-2A Ver.080123 6 ...

Page 7

... OUT0 26 OUT1 27 OUT1 28 OUT3 B6TS-08LF 29 OUT4 30 OUT5 31 OUT6 32 OUT7 Figure 2. Pin assignment Note: Pins TEST1 (6-pin) and TEST2 (8-pin) are used for testing during manufacture of the IC. During normal operation of the IC, connect them to Vdd through a pull-up resistor. 2.2 Pin functions Input/ Pin No. Designation ...

Page 8

Input/ Pin No. Designation Output Power Supply Input (3.0 - 5.5V Vss I Ground 20 An output pin which indicates the operation status. [Normal measurement mode] 9 CHG O [Setup mode I/O Serial ...

Page 9

... Connect a bypass capacitor of about 0.01 µF between /SETUP pin and Vss. VDD VDD 7 V SCK 6 TEST1 TEST2 11 RESET CH0A Cr 12 COM01 MEAS Cr 13 CH1A SETUP B6TS- 14 CH2A SCS 08LF 15 COM23 CHG 16 CH3A OUT0 17 CH4A OUT1 18 COM45 OUT2 19 CH5A OUT3 21 CH6A OUT4 22 ...

Page 10

Operation mode This chip has three operating modes. Each mode is selected by the MEAS pin and /SETUP pin. (1) Normal measurement mode -------------- Normal operation mode to detect touch/no-touch. (1-1) On/off output mode ----------------------- OUT0 - OUT7 pins ...

Page 11

Measurement The chip measures the discharge of the charge stored in the charge capacitor. When a finger is placed close to the touch electrode, the electrostatic capacitance of the electrode increases and the discharge time for the charge becomes ...

Page 12

... It is possible to read out measured values and set the operation mode by sending/receiving data to/from this chip through serial communication. Serial communication is performed with the three-wire SPI using SCS (chip select), SCK (transfer clock), and SD (data transmission and reception: host -> B6TS, B6TS -> host). 5.1 SPI communication The SPI communication method works as follows: (Refer to “ ...

Page 13

Command access Access to commands 0x00 - 0x7F. For read operation: Command Code. For write operation: Command Code. + 0x80 + dummy data (0x00) + data (upper 8 bits) + data (lower 8 bits) * For write accesses, transmit ...

Page 14

Command Desig- code nation 0x08 DCH6 Ch6 measured value 0x09 DCH7 Ch7 measured value 0x0A : 0x0D 0x0E CREF0 Current Ch0 reference value 0x0F CTHR0 Current Ch0 judging change 0x10 CHYS0 Current Ch0 hysteresis value 0x11 CREF1 Current Ch1 reference ...

Page 15

Command Desig- code nation 0x22 CHYS6 Current Ch6 hysteresis value 0x23 CREF7 Current Ch7 reference value 0x24 CTHR7 Current Ch7 judging change 0x25 CHYS7 Current Ch7 hysteresis value 0x26 : 0x35 0x36 MSA Max successive On count 0x37 DCI Drift ...

Page 16

Command Desig- code nation 0x4E RHYS2 Ch2 hysteresis ratio 0x4F REF3 Ch3 reference value 0x50 THR3 Ch3 judging change 0x51 HYS3 Ch3 hysteresis 0x52 RTHR3 Ch3 On-judgment ratio 0x53 RHYS3 Ch3 hysteresis ratio 0x54 REF4 Ch4 reference value 0x55 THR4 ...

Page 17

Description of commands 6.2.1 ID: Chip ID (read only) Used the chip. The data is fixed to 0x0281. Command code 0x00 6.2.2 BDATA: Detection result of touch/no-touch for ...

Page 18

CTHRx: Current judging change for each channel (read only) Current judging change for each channel is indicated by an unsigned 16-bit integer. Command code 0x0F..0x24 D15 D14 D13 D12 D11 D10 Channel 0 (CTHR0) Command ...

Page 19

BPOL: On/Off output pole (read/write enabled only in setup mode) Set the output polarity logic of On/Off output signal. 1:High Active (OUTx terminal is HIGH when touched) 0:Low Active (OUTx terminal is LOW when touched) Only the lower-order 8 ...

Page 20

SLP: Sleep time (read/write enabled only in setup mode) Defines the duty cycle between one measurement and the next measurement (operate time and sleep time). Sleep mode is activated for SLP value When SLP is set to “0”, measurements ...

Page 21

REFx: Reference value for each channel (read/write enabled only in setup mode) The reference value for each channel can be set with an unsigned 16-bit integer. Can only be changed in setup mode or rewrite automatically by teaching. It ...

Page 22

RTHRx: On-judgment ratio for each channel (read/write enabled only in setup mode) Used in teaching. Sets the ratio of the quantity of judging change (THRx) to the measured value observed in teaching with an unsigned 4-bit integer. (Refer to ...

Page 23

Default parameters in the EEPROM (shown in the Workbench monitor) Figure 8. Default parameters in the EEPROM 3713050-2A Ver.080123 23 ...

Page 24

Teaching 7.1 Outline of teaching Such parameters as the quantity of judging change can be set automatically through actual touches on the electrode. This operation is called "Teaching". When teaching, the reference value (REFx), quantity of judging change (THRx) ...

Page 25

Preparation for teaching To perform teaching, this chip must be brought into setup mode and some parameters must be set. The parameters (commands) associated with teaching are as follows: 7.2.1 Teaching measurement count (Refer to "6.2.8 TCAL: Teaching measurement ...

Page 26

Performing teaching There are two ways to enter teaching mode: (1) /SETUP pin = low, and MEAS pin = high (2) Write "0" into bit15 (TS) using the MODE command in setup mode. When entering teaching mode by method ...

Page 27

Electrical characteristics 8.1 Absolute maximum ratings Desig- Item nation V Supply voltage dd V Input voltage I V Output voltage O P Power dissipation d Ambient operating T opr temperature T Storage temperature stg 8.2 Recommended operating conditions Note ...

Page 28

Necessary timing conditions SD (input) Command Command SD (output) Dummy data Dummy data Figure 11 . Timing conditions diagram 28 3713050-2A Ver.080123 Data Data ...

Page 29

Table 4 . Necessary timing conditions Designa- Item tion t Serial communication clock cycle time c(SCK) Serial communication clock high pulse t w(SCKH) width Serial communication clock low pulse t w(SCKL) width t /SCS setup time to CLK su(SCS) t ...

Page 30

Measurement characteristics (typical example) measurement value (CH0) (Cc=0.1μF,Cr0=15pF,Cr1=15pF,Cr2=15pF,Cr3=22pF,Cr4=18pF,Cr5=22pF Cr6=22pF,Cr7=22pF,Rr0∼7=10kΩ,Vdd=5V,Topr=20℃) 800 700 600 500 400 300 200 100 Cx(pF) measurement time ( Cc=0.1μF,Cr0=15pF,Cr1=15pF,Cr2=15pF,Cr3=22pF,Cr4=18pF,Cr5=22pF Cr6=22pF,Cr7=22pF,Rr0∼7=10kΩ,Vdd=5V,Topr=20℃) 100 ...

Page 31

... The failure could not have been predicted based on the level of science or technology at the time of shipment. f) The failure has been caused by a natural or other disaster, an accident or the like that is not OMRON’s liability. This warranty applies only to the OMRON product itself, and any damage induced by a failed OMRON product is excluded from this warranty ...

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