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STM8TL52/L53 is the most advanced solution of ST’s STM8T capacitive proximity and touch-key controller family. It offers up to 300 channels using the ProxSense™ charge-transfer capacitive acquisition principle. The hardware peripheral combines advanced analog and digital processing to measure the electrode capacitance with no CPU load.
The fast projected capacitive acquisition minimizes the use of external components for a robust multiplexing of channels using a matrix of up to 15 Tx and 20 Rx.
| Part Number | Package | Marketing Status | Operating Frequency(F) (Processor speed) | FLASH Size (Prog) | Internal RAM Size | Data E2PROM nom (B) | 8-bit timer (IC/OC/PWM) | 16-bit timers (IC/OC/PWM) | Other timer functions | A/D Converter | D/A Converter | Comparator | I/Os (High Current) | Serial Interface | Supply Voltage(Vcc) min (V) | Supply Voltage(Vcc) max (V) | Supply Current(Icc) (Lowest power mode) typ (µA) | Supply Current(Icc) (Run mode (per Mhz)) typ (µA) | Display controller | Operating Temperature min (°C) | Operating Temperature max (°C) | Touch sensing FW library | Number Of Outputs nom () | Number of Channels nom () | Proximity capability | Response Time(T_d) nom (mS) | Signal processing | Technology | Wheel/Slider |
| STM8TL52F4 | TSSOP 20 | Active | 16 | 16 | - | 2048 | 1x8-bit | 2x16-bit | - | - | - | - | 12 | I2C;SPI;USART | 1.65 | 3.6 | 12 | 250 | - | -40 | 85 | - | - | - | - | - | - | - | Yes |
| STM8TL52G4 | UFQFPN 28 4x4x0.55 | Active | 16 | 16 | - | 2048 | 1x8-bit | 2x16-bit | - | - | - | - | 17 | I2C;SPI;USART | 1.65 | 3.6 | 12 | 250 | - | -40 | 85 | - | - | - | - | - | - | - | Yes |
| STM8TL53C4 | UFQFPN 48 7x7x0.55 | Active | 16 | 16 | - | 2048 | 1x8-bit | 2x16-bit | - | - | - | - | 23 | I2C;SPI;USART | 1.65 | 3.6 | 12 | 250 | - | -40 | 85 | - | - | - | - | - | - | - | Yes |
| STM8TL53F4 | TSSOP 20 | Active | 16 | 16 | - | 2048 | 1x8-bit | 2x16-bit | - | - | - | - | 12 | I2C;SPI;USART | 1.65 | 3.6 | 12 | 250 | - | -40 | 85 | - | - | - | - | - | - | - | Yes |
| STM8TL53G4 | UFQFPN 28 4x4x0.55 | Active | 16 | 16 | - | 2048 | 1x8-bit | 2x16-bit | - | - | - | - | 17 | I2C;SPI;USART | 1.65 | 3.6 | 12 | 250 | - | -40 | 85 | - | - | - | - | - | - | - | Yes |
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