STM8L151K6U3 STMICROELECTRONICS [STMicroelectronics], STM8L151K6U3 Datasheet - Page 7

• Manufacturer Part Number: STM8L151K6U3
• Description: 8-bit ultralow power MCU, up to 32 KB Flash, 1 KB Data EEPROM RTC, LCD, timers, USART, I2C, SPI, ADC, DAC, comparators
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STM8L151xx, STM8L152xx
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Figure 28.
STM8L15xxx device block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
STM8L15x clock tree diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
STM8L151Gx 28-pin package pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
STM8L151Kx 32-pin package pinout (without LCD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
STM8L152Kx 32-pin package pinout (with LCD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
STM8L151Cx 48-pin pinout (without LCD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
STM8L152Cx 48-pin pinout (with LCD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Pin loading conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Pin input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
POR/BOR thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
HSE oscillator circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
LSE oscillator circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Recommended NRST pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
SPI timing diagram - slave mode and CPHA=0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
SPI timing diagram - slave mode and CPHA=1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
SPI timing diagram - master mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Typical application with I2C bus and timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Power supply and reference decoupling (V
Power supply and reference decoupling (VREF+ connected to VDDA) . . . . . . . . . . . . . . . 89
WFQFPN28 – 28-lead very very thin fine pitch quad flat no-lead package outline (4 x 4) . 94
Recommended footprint (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
WFQFPN32 – 32-lead very very thin fine pitch quad flat no-lead package
LQFP32 – 32-pin low profile quad flat package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
VFQFPN48 7 x 7 mm, 0.5 mm pitch, package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Recommended footprint (dimensions in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
LQFP48 – 48-pin low profile quad flat package outline (7x7) . . . . . . . . . . . . . . . . . . . . . . . 98
STM8L15xxx ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
outline (5 x 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Doc ID 15962 Rev 2
REF+
not connected to V
DDA
). . . . . . . . . . . . . . 88
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