STM32L151CB-A datasheet(7/129 Pages) STMICROELECTRONICS

7 / 129 page

DocID024330 Rev 4

7/129

STM32L151x6/8/B-A STM32L152x6/8/B-A

List of figures

Figure 1.

Ultra-low-power STM32L151x6/8/B-A and STM32L152x6/8/B-A block diagram . . . . . . . . 13

Figure 2.

Clock tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 3.

STM32L15xVxxxA UFBGA100 ballout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 4.

STM32L15xVxxxA LQFP100 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 5.

STM32L15xRxxxA TFBGA64 ballout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 6.

STM32L15xRxxxA LQFP64 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 7.

STM32L15xCxxxA LQFP48 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 8.

STM32L15xCxxxA UFQFPN48 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 9.

Memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Figure 10.

Pin loading conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Figure 11.

Pin input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Figure 12.

Power supply scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Figure 13.

Optional LCD power supply scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Figure 14.

Current consumption measurement scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Figure 15.

High-speed external clock source AC timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Figure 16.

Low-speed external clock source AC timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Figure 17.

HSE oscillator circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Figure 18.

Typical application with a 32.768 kHz crystal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Figure 19.

I/O AC characteristics definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Figure 20.

Recommended NRST pin protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Figure 21.

I2C bus AC waveforms and measurement circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Figure 22.

SPI timing diagram - slave mode and CPHA = 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Figure 23.

SPI timing diagram - slave mode and CPHA = 1(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Figure 24.

SPI timing diagram - master mode(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Figure 25.

USB timings: definition of data signal rise and fall time . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Figure 26.

ADC accuracy characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Figure 27.

Typical connection diagram using the ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Figure 28.

Maximum dynamic current consumption on VREF+ supply pin during ADC

conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Figure 29.

12-bit buffered /non-buffered DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Figure 30.

LQFP100 14 x 14 mm, 100-pin low-profile quad flat package outline . . . . . . . . . . . . . . . 106

Figure 31.

LQPF100 14 x 14 mm, 100-pin low-profile quad flat package recommended footprint . . 108

Figure 32.

LQFP100 14 x 14 mm, 100-pin package top view example . . . . . . . . . . . . . . . . . . . . . . . 108

Figure 33.

LQFP64 10 x 10 mm, 64-pin low-profile quad flat package outline . . . . . . . . . . . . . . . . . 109

Figure 34.

LQFP64 10 x 10 mm, 64-pin low-profile quad flat package recommended footprint . . . . 110

Figure 35.

LQFP64 10 x 10 mm, 64-pin low-profile quad flat package top view example . . . . . . . . . 111

Figure 36.

LQFP48 7 x 7 mm, 48-pin low-profile quad flat package outline . . . . . . . . . . . . . . . . . . . 112

Figure 37.

LQFP48 7 x 7 mm, 48-pin low-profile quad flat package recommended footprint . . . . . . 114

Figure 38.

LQFP48 7 x 7 mm, 48-pin low-profile quad flat package top view example . . . . . . . . . . . 114

Figure 39.

UFQFPN48 7 x 7 mm, 0.5 mm pitch, package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Figure 40.

UFQFPN48 7 x 7 mm, 0.5 mm pitch, package recommended footprint . . . . . . . . . . . . . . 116

Figure 41.

UFQFPN48 7 x 7 mm, 0.5 mm pitch, package top view example . . . . . . . . . . . . . . . . . . 117

Figure 42.

UFBGA100, 7 x 7 mm, 0.5 mm pitch, ultra thin fine-pitch ball grid array

package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Figure 43.

UFBGA100 7 x 7 mm, 0.5 mm pitch, ultra thin fine-pitch ball grid array

package recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Figure 44.

UFBGA100 7 x 7 mm, 0.5 mm pitch, package top view example. . . . . . . . . . . . . . . . . . . 120

Figure 45.

TFBGA64 5 x 5 mm, 0.5 mm pitch, thin fine-pitch ball grid array

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