STM8T143 STMicroelectronics, STM8T143 Datasheet - Page 58

• Manufacturer Part Number: STM8T143
• Description: Single-channel capacitive sensor for touch and proximity detection
• Manufacturer: STMicroelectronics

Revision history
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Revision history
Table 31.
17-May-2011
31-Aug-2011
Date
Document revision history
Revision
1
2
Initial release
Features: updated bullet about low power management.
Block
removed
engine.
Section 4.3: Internal sampling
of applications
Section 5: STM8T143
to order of subsections.
Section 5.2: Signal calculation and reference
Section 5.3: Detection and release
Figure 7: Automatic electrode tuning
Figure 8: Signal reference and detection threshold (not
replaced.
Figure 9: DYCAL general
Figure 10: DYCAL operation with water
Figure 11: No
Added
Section 5.5.2: ECS
by the reference freeze
‘Reference - PTh’; added note 5.5.4.
Section 5.4: Dynamic calibration
Added
ECS filter K constant
Removed
Section 5.7: Host control
Table 4: Option byte
[7:5] and [4:3]).
Table 7: Data streaming
Table 9: Current
values.
Table 12: Average current
values; updated footnotes.
Table 13: OUT/TOUT/DATA streaming pin
all TBDs with values; added condition 25 °C; added footnote
Table 14: POUT/TOUT pin
values; added condition 25 °C; added footnote
Table 15: CTRL pin
added condition 25 °C; added footnote
Section 9.5: Capacitive sensing
25 °C.
Doc ID 18315 Rev 3
diagram: updated
Figure 12: IIR filter formula
Section 5.5.4: ECS filter constant adjustment
Power-on-reset
Reference freeze timeout
DYCAL: updated
’.
characteristics: updated I
halt: in
characteristics: replaced all TBDs with values;
description: updated OPT2 (bit 4), OPT0 (bits
management.
processing: realigned bullet points according
timeout: replaced ‘reference - D
Figure 1: STM8T143 block
frame: updated description of bit 47 (byte 5).
(POR), and updated
input: updated
operation: replaced
consumption: updated all typ and max
Figure 14: Unwanted detection managed
characteristics: replaced all TBDs with
Changes
capacitor: added ‘
characteristics: added test condition
(DYCAL): updated
thresholds: updated
figure
(AET): replaced
1.
residue: replaced
VDD
characteristics: replaced
calibration: updated
, I
Advanced ProxSense
1.
VSS
to fit a wide range
, and I
diagram,
and
detailed):
Th
STM8T143
Figure 15:
IO
’ with
max
1.