SDIC Microelectronics SD93F115-JBS

This chip is a SoC product featuring a 32-bit MCU with LCD driver and 24-bit high-precision ADC, providing 120KB of Flash for user program storage. This chip is a 32-bit system chip supporting byte, half-word (16-bit), and full-word (32-bit) access. The system clock defaults to 12MHz at power-on and can be configured via registers to select different clock sources, with a maximum configurable frequency of 24MHz. This chip offers four operating modes, allowing users to achieve the optimal balance between performance and power consumption. The four modes are: Normal Operating Mode, Standby (WAIT) Mode, Sleep (DOZE) Mode, and Deep Sleep (STOP) Mode.

• High-precision ADC, ENOB = 18.6bits@8sps (Gain=256), 4 differential channels or 8 single-ended channels
• Low-noise, high-input-impedance PGA with selectable gains of 1, 4, 8, 16, 32, 64, 128, and 256, with offset correction
• Built-in 12-bit SAR ADC with self-calibration, selectable sampling time and operating modes
• 32-bit MCU (24MHz max), 120k Bytes FLASH, 8k Bytes Boot, 8k Bytes SRAM
• Built-in high-frequency RC oscillator, 24MHz, ±1% accuracy after calibration
• Built-in low-frequency RC oscillator, 32kHz
• External high-frequency crystal oscillator support, 8~24MHz
• External low-frequency crystal oscillator support, 32.768kHz
• RTC module supporting year, month, day of week, date, hour, minute, and second, with automatic leap year calculation
• LCD driver module supporting up to four drive modes: 44SEG×4COM, 43SEG×5COM, 42SEG×6COM, and 40SEG×8COM; ultra-low power consumption with high drive capability, built-in programmable boost module for high-brightness display under low-voltage conditions; selectable drive voltage, 2.7~5.2V
• Built-in sensor excitation output, selectable output voltage 2.4~4.5V in 0.3V steps
• Built-in Burnout Detect Current Source
• 1.2V reference output
• Built-in sine wave generator with selectable output frequencies: 5kHz, 50kHz, 100kHz, and 200kHz, supporting 8-electrode BIA body fat measurement
• Two built-in op-amps: OPA and OPB
• Built-in low-voltage detection circuit comprising an 8-bit DAC and a rail-to-rail input comparator for flexible battery monitoring and touch key detection; voltage detection range 2.0~5.3V
• Built-in silicon temperature sensor with single-point calibration, supporting automatic forward/reverse measurement
• Up to 2 built-in UART interfaces; falling edge on RXD0/RXD1 automatically wakes MCU from standby
• 1 built-in I2C interface
• 1 built-in SPI interface
• 2 independent built-in 16-bit PWM/PDM outputs
• 1 built-in capture input CCP
• Built-in 16-bit Timer0/1/2 for timed interrupts and more
• Built-in buzzer output driver with configurable clock and frequency
• 2 external interrupts, INT1~0
• 7 key interrupts, KEY6~0
• All digital inputs with Schmitt trigger input, optional pull-up resistors of 50kΩ
• Operating voltage range: 2.4~5.5V
• Operating temperature range: -40~85℃

• Blood pressure monitor
• Body fat scale
• Blood glucose meter
• Infrared thermometer