STM8T141 datasheet(48/50 Pages) STMICROELECTRONICS

48 / 50 page

Revision history

STM8T141

48/50

Doc ID 15699 Rev 7

Revision history

Table 28.

Document revision history

Date

Revision

Changes

09-Jun-2009

Initial release.

02-Jul-2009

VDD range changed to 2.9 to 5.5V. Table 12 and Table 14 updated.

Internal voltage regulator bypassed configuration removed.

IDDLP removed from Table 13.

31-Jul-2009

Upgraded document from Preliminary Data to full Datasheet.

Updated oscillator information in Figure 1: STM8T141 block diagram

on page 8.

Added detection threshold values in Table 16: General capacitive

sensing characteristics on page 33.

Updated values in Table 17: Response times on page 34.

05-Oct-2009

Updated Section 11: Ordering information.

Section 11.2: Orderable favorite device lists: added information on

option byte programming; added option list.

Added Section 12: STM8T141 development tools

24-Feb-2010

Lower operating supply voltage changed from 2.9 V to 2.0 V. The

following tables were impacted: Table 1: Device summary, Table 12:

Operating characteristics, Table 13: Average current consumption

without shield, Table 16: General capacitive sensing characteristics,

and Table 16: General capacitive sensing characteristics.

Introduced trademark for ProxSense (ProxSense™)

Throughout document, “sensitivity threshold or level” replaced with

“detection threshold”, “automatic recalibration” with “reference freeze

timeout”, “STH” with “DTh”, and “SO” with “SO8”.

Section 2: Block diagram: replaced ‘capacitive sensing engine’ with

‘ProxSense engine’.

Added Figure 3: UFDFPN8 pinout.

Updated Table 2: STM8T141 pin descriptions.

Renamed Section 4 as STM8T ProxSense technology

Renamed Section 4.2 as Charge transfer acquisition principle and

updated text.

Figure 5: STM8T measuring circuitry: updated.

Figure 6: Conversion period examples: updated.

Sections 4.3 renamed Section 5: STM8T processing. Section re-

organised and reworked with new figures and tables added.

Section 6: Typical application diagram: removed introductory text;

modified Figure 10, modified footnote 1, added footnote 2, added text

regarding RSHIELD resistor, define a touch or proximity detection.

Section 7: Device operation: Re-organisation of text; removed

reference related to low power modes.

Section 7.1: Option byte description: added reference to Section 12.

Table 5: Option bytes: updated factory default setting of OPT1,

recalibration timeout renamed reference freeze timeout.

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