1.2 Key Features

1.2.1 General Features

General features are as follows:

1. 32-bit proprietary microcontroller

• Maximum running speed up to 48 MHz

2. Memory architecture

• Program memory: 128 KB flash (TLSR8208B/D), 512 KB flash (TLSR8208C) or external Flash

• 16 KB retention SRAM

• Support 16 KB OTP

3. RTC and other timers

• Clock source of 24 MHz & 32.768 kHz Crystal and 32 kHz / 24 MHz embedded RC oscillator

• Three general 32-bit timers with four selectable modes in active mode

• Watchdog timer

• A low-frequency 32 kHz timer available in low power mode

4. A rich set of digital and analog interfaces

• Up to 38/16/33/10 GPIOs depending on package option. All digital IOs can be used as GPIOS

• SPI

• I2C

• USB 2.0

• UART with hardware flow control and 7816 protocol support

• Swire debug interface

• Up to 6 channels of differential PWM

• IR transmitter with DMA

• One quadrature decoder (QDEC), two-phase input selectable

• 14-bit auxiliary ADC

5. Embedded hardware AES block cipher with 128 bit keys and software AES CCM

6. Hardware OTA upgrade and multiple boot switch, allowing convenient product feature roll outs and

upgrades

7. Support keyboard scan function, maximum matrix is 8*18

8. Operating temperature range: -40°C ~ + 85°C

9. Completely RoHS-compliant package

• TLSR8208A, 56-pin QFN 7×7 mm

• TLSR8208B, 24-pin QFN 4x4 mm

• TLSR8208C, 40-pin QFN 5x5 mm

• TLSR8208D, 16-pin SOP 9.9x6 mm