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Q: What types of LCDs can the STM8L152 drive directly?
A: The LCD controller drives passive segment (non-matrix) LCDs: 7-segment numeric displays, 14-segment alphanumeric displays, custom icon/symbol panels, and bar-graph displays. It does NOT drive graphical/TFT LCDs (those require a framebuffer and parallel RGB interface, available only on STM32F4+ MCUs)
Q: Does the LCD driver work in all low-power modes?
A: Yes. The LCD controller has its own clock source (LSI or LSE) and continues refreshing the display independently in Halt, Active-Halt, and Wait modes. The CPU can be completely stopped while the LCD shows static or slowly-updating data — only waking periodically to update displayed values from new s
The STM8L152M8T6 is the only STM8 MCU that combines ultra-low-power operation with an integrated LCD segment driver — a unique combination that eliminates the need for external LCD controller ICs (e.g., HT1621, PCF8576). The LCD controller can drive up to 192 segments in 8-COM mode — sufficient for a 6-digit 7-segment display with icons, a 4×20 character alphanumeric display, or a custom segmented instrument panel showing battery voltage, current, flight time, GPS coordinates, and status indicators. For drone applications, this MCU enables battery-powered handheld telemetry displays that consume only 3 µA in display-ON sleep mode (LCD showing static data, CPU in Halt, RTC running). A CR2032 coin cell can power such a display for months of continuous operation . The dual 12-bit DACs can gen
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Part Number | STM8L152M8T6 |
| Core | STM8 (8-bit, 16 MHz) |
| Flash / SRAM / EEPROM | 64 KB / 4 KB / 2 KB |
| Package | LQFP-80 (14×14 mm, 0.65 mm pitch) |
| Supply Voltage | 1.8V – 3.6V |
| Temperature | −40°C to +85°C |
| GPIO | 68 |
| LCD Driver | Up to 4 COM × 28 SEG (112 segments) or 8 COM × 24 SEG (192 segments) |
| ADC / DAC | 12-bit 25-ch ADC / 2× 12-bit DAC |
| DMA | 4-channel |
| Timers | 5× 16-bit + RTC with calendar |
| Communication | 3× USART, 1× SPI, 1× I²C |
| Power | 0.35 µA Halt (LCD off), 0.9 µA w/ RTC, ~3 µA with LCD + RTC |
| Debug | SWIM |
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