Datasheet

Description STM32F334x4 STM32F334x6 STM32F334x8
10/121 DocID025409 Rev 8
2 Description
The STM32F334x4/6/8 family incorporates the high-performance Arm
®
Cortex
®
-M4 32-bit
RISC core operating at up to 72
MHz frequency embedding a floating point unit (FPU),
high-speed embedded memories (up to 64
Kbytes of Flash memory, up to 12 Kbytes of
SRAM), and an extensive range of enhanced I/Os and peripherals connected to two APB
buses.
The STM32F334x4/6/8 microcontrollers offer two fast 12-bit ADCs (5 Msps), up to three
ultra-fast comparators, an operational amplifier, three DAC channels, a low-power RTC, one
high-resolution timer, one general-purpose 32-bit timer, one timer dedicated to motor
control, and four general-purpose 16-bit timers. They also feature standard and advanced
communication interfaces: one I
2
C, one SPI, up to three USARTs and one CAN.
The STM32F334x4/6/8 family operates in the –40 to +85 °C and –40 to +105 °C
temperature ranges from 2.0 to 3.6
V power supply. A comprehensive set of power-saving
modes allows the design of low-power applications.
The STM32F334x4/6/8 family offers devices in 32-, 48- and 64-pin packages.
Depending on the device chosen, different sets of peripherals are included.
Table 2. STM32F334x4/6/8 family device features and peripheral counts
Peripheral STM32F334Kx STM32F334Cx STM32F334Rx
Flash memory (Kbyte) 16 32 64 16 32 64 16 32 64
SRAM on data bus (Kbyte) 12
Core coupled memory SRAM
on instruction bus (CCM
SRAM) (Kbyte)
4
Timers
High-resolution
timer
1 (16-bit / 10 channels)
Advanced control 1 (16-bit)
General purpose
4 (16-bit)
1 (32 bit)
Basic 2 (16-bit)
SysTick timer 1
Watchdog timers
(independent,
window)
2
PWM channels
(all)
(1)
20 26 28
PWM channels
(except
complementary)
14 20 22
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