This is information on a product in full production.
January 2017
DocID025832 Rev 5
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STM32F042x4 STM32F042x6
ARM
®
-based 32-bit MCU, up to 32 KB Flash, crystal-less USB
FS 2.0, CAN, 9 timers, ADC and comm. interfaces, 2.0 - 3.6 V
Datasheet
-
production data
Features
•
Core: ARM
®
32-bit Cortex
®
-M0 CPU,
frequency up to 48 MHz
•
Memories
– 16 to 32 Kbytes of Flash memory
– 6 Kbytes of SRAM with HW parity
•
CRC calculation unit
•
Reset and power management
– Digital and I/Os supply: V
DD
= 2 V to 3.6 V
– Analog supply: V
DDA
= from V
DD
to 3.6 V
– Selected I/Os: V
DDIO2
= 1.65 V to 3.6 V
– Power-on/Power down reset (POR/PDR)
– Programmable voltage detector (PVD)
– Low power modes: Sleep, Stop, Standby
– V
BAT
supply for RTC and backup registers
•
Clock management
– 4 to 32 MHz crystal oscillator
– 32 kHz oscillator for RTC with calibration
– Internal 8 MHz RC with x6 PLL option
– Internal 40 kHz RC oscillator
– Internal 48 MHz oscillator with automatic
trimming based on
ext. synchronization
•
Up to 38 fast I/Os
– All mappable on external interrupt vectors
– Up to 24 I/Os with 5 V tolerant capability
and 8 with independent supply V
DDIO2
•
5-channel DMA controller
•
One 12-bit, 1.0 µs ADC (up to 10 channels)
– Conversion range: 0 to 3.6 V
– Separate analog supply: 2.4 V to 3.6 V
•
Up to 14 capacitive sensing channels for
touchkey, linear and rotary touch sensors
•
Calendar RTC with alarm and periodic wakeup
from Stop/Standby
•
Nine timers
– One 16-bit advanced-control timer for six
channel PWM output
– One 32-bit and four 16-bit timers, with up to
four IC/OC, OCN, usable for IR control
decoding
– Independent and system watchdog timers
– SysTick timer
•
Communication interfaces
– One I
2
C interface supporting Fast Mode
Plus (1 Mbit/s) with 20 mA
current sink,
SMBus/PMBus and wakeup
– Two USARTs supporting master
synchronous SPI and modem control, one
with ISO7816 interface, LIN, IrDA, auto
baud rate detection and wakeup feature
– Two SPIs (18 Mbit/s) with 4 to 16
programmable bit frames, one with I
2
S
interface multiplexed
– CAN interface
– USB 2.0 full-speed interface, able to run
from internal 48 MHz oscillator and with
BCD and LPM support
•
HDMI CEC, wakeup on header reception
•
Serial wire debug (SWD)
•
96-bit unique ID
•
All packages ECOPACK
®
2
Table 1. Device summary
Reference
Part number
STM32F042x4
STM32F042F4, STM32F042G4,
STM32F042K4, STM32F042T4, STM32F042C4
STM32F042x6
STM32F042F6, STM32F042G6,
STM32F042K6, STM32F042T6, STM32F042C6
LQFP48 7x7 mm
UFQFPN48 7x7 mm WLCSP36
UFQFPN32 5x5 mm
UFQFPN28 4x4 mm
TSSOP20
LQFP32 7x7 mm
2.6x2.7 mm
6.5x4.4 mm
