CY8C20121-SX1I Cypress Semiconductor Corp, CY8C20121-SX1I Datasheet - Page 10

• Manufacturer Part Number: CY8C20121-SX1I
• Description: CY8C20121-SX1I
• Manufacturer: Cypress Semiconductor Corp
• Series: CapSense Express™ CY8C20xxxr

Specifications of CY8C20121-SX1I

• Controller Type: Capacitive Sensing Controller
• Interface: I²C
• Voltage - Supply: 2.4 V ~ 5.25 V
• Current - Supply: 1.5mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Processor Series: CY8C201xx
• Core: M8C
• Program Memory Type: Flash
• Interface Type: I2C
• Operating Supply Voltage: 2.4 V to 5.25 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: CY3218-CAPEXP1
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.1 OUTPUT_STATUS
OUTPUT_STATUS: 00h
The Output Status register represents the actual logical levels on the output pins.
8.2 OUTPUT_PORT
OUTPUT_PORT: 04h
This register is used to write data to DIG output port. Pins defined as output of combinational logic (in OP_SEL_x register) cannot be
changed using this register.
8.3 CS_ENABLE
CS_ENABLE: 07h
(
Document Number: 001-53516 Rev. *E
Bit
1:0
Bit
1:0
Writable only in Setup mode)
Access: FD
Access: FD
Access: FD
Access: FD
Access: FD
Access: FD
1 Button
Bit Name
2 Button
Bit Name
1 Button
Bit Name
2 Button
Bit Name
1 Button
Bit Name
2 Button
Bit Name
Output Status Register
Output Port Register
Select CapSense Input Register
Name
STS [1:0]
Name
DIG [1:0]
7
7
7
7
7
7
6
6
6
6
6
6
5
5
5
5
5
5
Description
Used to represent the output status
0
1
Description
A bit set in this register sets the logic level of the output.
0
1
4
4
4
4
4
4
Output low
Output high
Logic ‘0’
Logic ‘1’
3
3
3
3
3
3
2
2
2
2
2
2
CY8C20111, CY8C20121
1
1
1
1
1
1
STS[1:0]
DIG[1:0]
CS[1:0]
RW:03
W:03
R:03
STS[0]
DIG[0]
RW:01
CS[0]
W:01
R:01
0
0
0
0
0
0
Page 10 of 43
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