STM32F102xB datasheet(12/76 Pages) STMICROELECTRONICS

12 / 76 page

Description

STM32F102x8, STM32F102xB

12/76

Doc ID 15056 Rev 4

2.2

Full compatibility throughout the family

The STM32F102xx is a complete family whose members are fully pin-to-pin, software and

feature compatible. In the reference manual, the STM32F102x4 and STM32F102x6 are

referred to as low-density devices and the STM32F102x8 and STM32F102xB are referred to

as medium-density devices.

Low-density devices are an extension of the STM32F102x8/B devices, they are specified in

the STM32F102x4/6 datasheet. Low-density devices feature lower Flash memory and RAM

capacities, a timer and a few communication interfaces less.

The STM32F102x4 and STM32F102x6 are a drop-in replacement for the STM32F102x8/B

medium-density devices, allowing the user to try different memory densities and providing a

greater degree of freedom during the development cycle.

Moreover the STM32F102xx family is fully compatible with all existing STM32F101xx

access line and STM32F103xx performance line devices.

2.3

Overview

ARM® Cortex™-M3 core with embedded Flash and SRAM

The ARM Cortex™-M3 processor is the latest generation of ARM processors for embedded

systems. It has been developed to provide a low-cost platform that meets the needs of MCU

implementation, with a reduced pin count and low-power consumption, while delivering

outstanding computational performance and an advanced system response to interrupts.

The ARM Cortex™-M3 32-bit RISC processor features exceptional code-efficiency,

delivering the high-performance expected from an ARM core in the memory size usually

associated with 8- and 16-bit devices.

The STM32F102xx medium-density USB access line having an embedded ARM core, is

therefore compatible with all ARM tools and software.

Embedded Flash memory

64 or 128 Kbytes of embedded Flash is available for storing programs and data.

Table 3.

STM32F102xx USB access line family

Pinout

Low-density STM32F102xx devices

Medium-density STM32F102xx devices

16 KB Flash

32 KB Flash(1)

For orderable part numbers that do not show the A internal code after the temperature range code (6), the

reference datasheet for electrical characteristics is that of the STM32F102x8/B medium-density devices.

64 KB Flash

128 KB Flash

4 KB RAM

6 KB RAM

10 KB RAM

16 KB RAM

2 × USARTs, 2 × 16-bit timers

1 × SPI, 1 × I2C, 1 × ADC, 1 × USB

3 × USARTs, 3 × 16-bit timers

2 × SPIs, 2 × I2Cs, 1 × ADC, 1 × USB

2 × USARTs, 3 × 16-

bit timers

1× SPI, 1× I2C, 1 ×

ADC, 1 × USB

STM32F102xB Datasheet(PDF) 12 Page - STMicroelectronics

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