STMPE821QTR STMicroelectronics, STMPE821QTR Datasheet - Page 23

• Manufacturer Part Number: STMPE821QTR
• Description: IC CTLR TOUCH KEY 8CH CAP 16-QFN
• Manufacturer: STMicroelectronics
• Type: Capacitiver

Specifications of STMPE821QTR

• Number Of Inputs/keys: 8 Key
• Data Interface: I²C
• Voltage - Supply: 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QFN
• Voltage Supply Source: Single Supply
• Resolution: 7 bit to 10 bit
• Interface Type: I2C
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Number Of Channels: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sampling Rate (per Second): -
• Resolution (bits): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-8826-2

STMPE821
GPIO_INT_EN
Address:
Type:
Reset:
Description:
GPIO_INT_STA
Address:
Type:
Reset:
Description:
7
7
[7:0] IEG[7:0]
[7:0] ISG[x]:
6
6
0x0B, 0x0C
R/W
0x00
The GPIO interrupt enable register is used to enable the interruption from a particular
GPIO interrupt source to the host. The IEg[7:0] bits and the interrupt enable mask bits
correspond to the GPIO[7:0} pins.
Interrupt enable GPIO mask (where x = 7 to 0)
Writing a ‘1’ to the IE[x] bit will enable the interruption to the host.
0x0D
R/W
0x00
The GPIO interrupt status register LSB monitors the status of the interruption from a
particular GPIO pin interrupt source to the host. Regardless whether the IEGPIOR
bits are enabled or not, the INT_STA_GPIO_LSB bits are still updated. The ISG[7:0]
bits are the interrupt status bits correspond to the GPIO[7:0] pins.
Interrupt status GPIO (where x = 7 to 0)
Read:
Interrupt status of the GPIO[x]. Writing ‘1’ clears a bit. Writing ‘0’ has no effect.
5
5
4
4
GPIO interrupt enable registerI
GPIO interrupt status register
3
3
IEG[x]
2
2
Interrupt controller module
1
1
0
0
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