STM32F042K4

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Mainstream Arm Cortex-M0 USB line MCU with 16 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions

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Product overview

Description

The STM32F042x4/x6 microcontrollers incorporate the high-performance ARM®Cortex®-M0 32-bit RISC core operating at up to 48 MHz frequency, high-speed embedded memories (up to 32 Kbytes of Flash memory and 6 Kbytes of SRAM), and an extensive range of enhanced peripherals and I/Os. All devices offer standard communication interfaces (one I2C, two SPIs/one I2S, one HDMI CEC and two USARTs), one USB Full-speed device (crystal-less), one CAN, one 12-bit ADC, four 16-bit timers, one 32-bit timer and an advanced-control PWM timer.

The STM32F042x4/x6 microcontrollers operate in the -40 to +85 °C and -40 to +105 °C temperature ranges, from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications.

The STM32F042x4/x6 microcontrollers include devices in seven different packages ranging from 20 pins to 48 pins with a die form also available upon request. Depending on the device chosen, different sets of peripherals are included.

These features make the STM32F042x4/x6 microcontrollers suitable for a wide range of applications such as application control and user interfaces, hand-held equipment, A/V receivers and digital TV, PC peripherals, gaming and GPS platforms, industrial applications, PLCs, inverters, printers, scanners, alarm systems, video intercoms and HVACs.

  • All 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: VDD= 2 V to 3.6 V
      • Analog supply: VDDA= from VDDto 3.6 V
      • Selected I/Os: VDDIO2= 1.65 V to 3.6 V
      • Power-on/Power down reset (POR/PDR)
      • Programmable voltage detector (PVD)
      • Low power modes: Sleep, Stop, Standby
      • VBATsupply 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 VDDIO2
    • 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 I2C 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 I2S 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

Circuit Diagram

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STM32F042K4

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3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM32F042K4T6
Active
LQFP 32 7x7x1.4 mm Industrial Ecopack2
STM32F042K4T6TR
Active
LQFP 32 7x7x1.4 mm Industrial Ecopack2
STM32F042K4U6
Active
UFQFPN 32 5x5x0.55 mm Industrial Ecopack2

STM32F042K4T6

Package:

LQFP 32 7x7x1.4 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP 32 7x7x1.4 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STM32F042K4T6TR

Package:

LQFP 32 7x7x1.4 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP 32 7x7x1.4 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STM32F042K4U6

Package:

UFQFPN 32 5x5x0.55 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

UFQFPN 32 5x5x0.55 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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Part Number
Marketing Status
Budgetary Price (US$)*/Qty
Order from ST
Order from distributors
Package
Packing Type
RoHS
Country of Origin
ECCN (US)
ECCN (EU)
Temperature (°C)
D/A Converters (typ) (12-bit)
Timers (typ) (16-bit)
Timers (typ) (32-bit)
Number of Channels (typ)
SMPS
Number of Channels (typ)
UART (typ)
I/Os (High Current)
Integrated op-amps
Comparator
SPI (typ)
USART (typ)
Number of Channels (typ)
I2S (typ)
Operating Temperature (°C) (min)
CAN (2.0)
CAN (FD)
min
max
STM32F042K4T6
Available at distributors

Distributor availability of STM32F042K4T6

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
LQFP 32 7x7x1.4 mm Tray CHINA 3A991.a.2 NEC -40 85

-

5

1

-

-

-

-

26

-

-

1

2

10

1

-40

1

-

STM32F042K4T6TR
Available at distributors

Distributor availability of STM32F042K4T6TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
LQFP 32 7x7x1.4 mm Tape and Reel CHINA 3A991.a.2 NEC -40 85

-

5

1

-

-

-

-

26

-

-

1

2

10

1

-40

1

-

STM32F042K4U6
Available at distributors

Distributor availability of STM32F042K4U6

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
UFQFPN 32 5x5x0.55 mm Tray PHILIPPINES 3A991.a.2 NEC -40 85

-

5

1

-

-

-

-

28

-

-

1

2

10

1

-40

1

-

STM32F042K4T6 Active

Budgetary Price (US$)*/Qty:
-
Package:
LQFP 32 7x7x1.4 mm
Packing Type:
Tray
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
3A991.a.2
ECCN (EU):
NEC

Part Number:

STM32F042K4T6

D/A Converters (typ) (12-bit):

-

Timers (typ) (16-bit):

5

Timers (typ) (32-bit):

1

Number of Channels (typ):

-

SMPS:

-

Number of Channels (typ):

-

UART (typ):

-

I/Os (High Current):

26

Integrated op-amps:

-

Comparator:

-

SPI (typ):

1

USART (typ):

2

Number of Channels (typ):

10

I2S (typ):

1

Operating Temperature (°C)

Min:

-40

Max:

85

CAN (2.0):

1

CAN (FD):

-

Distributor Name

Distributor reported inventory date:

STM32F042K4T6TR Active

Budgetary Price (US$)*/Qty:
-
Package:
LQFP 32 7x7x1.4 mm
Packing Type:
Tape and Reel
RoHS:
-
Country of Origin:
CHINA
ECCN (US):
3A991.a.2
ECCN (EU):
NEC

Part Number:

STM32F042K4T6TR

D/A Converters (typ) (12-bit):

-

Timers (typ) (16-bit):

5

Timers (typ) (32-bit):

1

Number of Channels (typ):

-

SMPS:

-

Number of Channels (typ):

-

UART (typ):

-

I/Os (High Current):

26

Integrated op-amps:

-

Comparator:

-

SPI (typ):

1

USART (typ):

2

Number of Channels (typ):

10

I2S (typ):

1

Operating Temperature (°C)

Min:

-40

Max:

85

CAN (2.0):

1

CAN (FD):

-

STM32F042K4U6 Active

Budgetary Price (US$)*/Qty:
-
Package:
UFQFPN 32 5x5x0.55 mm
Packing Type:
Tray
RoHS:
-
Country of Origin:
PHILIPPINES
ECCN (US):
3A991.a.2
ECCN (EU):
NEC

Part Number:

STM32F042K4U6

D/A Converters (typ) (12-bit):

-

Timers (typ) (16-bit):

5

Timers (typ) (32-bit):

1

Number of Channels (typ):

-

SMPS:

-

Number of Channels (typ):

-

UART (typ):

-

I/Os (High Current):

28

Integrated op-amps:

-

Comparator:

-

SPI (typ):

1

USART (typ):

2

Number of Channels (typ):

10

I2S (typ):

1

Operating Temperature (°C)

Min:

-40

Max:

85

CAN (2.0):

1

CAN (FD):

-

Distributor Name

Distributor reported inventory date:

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors