STM8T141 datasheet(8/50 Pages) STMICROELECTRONICS

部件名	STM8T141

功能描述	Single-channel capacitive sensor for touch or proximity detection with shielded sensing electrode

PDF	50 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

8 / 50 page

Block diagram

STM8T141

8/50

Doc ID 15699 Rev 7

Block diagram

Figure 1.

STM8T141 block diagram

RC oscillator

The 500-kHz RC oscillator is an internal fixed frequency oscillator used to supply the clock

to the MCU system engine.

Power-On-Reset (POR)

The POR generates a reset signal depending on the power supply level and the clock

pulses received from the RC oscillator.

Voltage regulator

The voltage regulator has an internal comparison and feedback circuit that ensures the

VREG voltage is kept stable and constant. The regulator requires an external smoothing

capacitor.

MCU system engine

The MCU system engine controls the capacitive sensing engine and processes touch and

proximity detection signals.

ProxSense engine

The ProxSense engine circuitry employs a charge-transfer method to detect changes in

capacitance.

500 kHz RC

oscillator

VSS

TOUT/POUT

VDD

POR

VREG

ai17207

Voltage

regulator

MCU system engine

SHLDOUT

SHLDIN

ProxSense

engine

STM8T141 数据表(PDF) 8 Page - STMicroelectronics

STM8T141 数据表(HTML) 8 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

数据表下载