Not Recommended for New Designs: This part is Not Recommended for New Designs (NRND).
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C8051F346-GM

C8051F32x/34x USB Microcontrollers

The C8051F346-GM microcontroller (MCU) features an on-board universal serial bus (USB) 2.0 function controller with an integrated transceiver and on-chip clock recovery. No external resistors, crystal, voltage regulator, EEPROM, or other components are required for USB applications. The MCU includes a powerful 8051 core with 25 MHz performance along with 64 kB Flash, 4.25 kB RAM. On-chip analog features include a 10-bit, 21-ch., 200 ksps ADC, voltage reference, a ±1.5 internal oscillator, 2 comparators, and a temperature sensor. Integrating additional communication interfaces along with rich analog in a 5x5 mm, QFN32, the C8051F346-GM provides a truly single-chip solution for embedded USB applications.

 

Key Specs

 
MCU Core
8051
MHz
25
Flash (kB)
64
RAM (kB)
4.25
EMIF
0
I2C
1
SPI
1
UART
1
USB
Yes
Dig I/O Pins
25
ADC
10-bit, 21-ch., 200 ksps
DAC
Comparators
2
PCA Channels
5
Timers
4
Package Type
QFN32
Package Size (mm)
5x5
MCU Core
8051
MHz
25
Flash (kB)
64
RAM (kB)
4.25
EMIF
0
I2C
1
SPI
1
UART
1
USB
Yes
Dig I/O Pins
25
ADC
10-bit, 21-ch., 200 ksps
DAC
Comparators
2
PCA Channels
5
Timers
4
Package Type
QFN32
Package Size (mm)
5x5
C8051F34x-BD.png

Quality Assurance, Environmental and Packaging Information

Silicon Labs targets a minimum of a 10-year lifecycle for all of its standard products and expects to produce the C8051F346-GM until at least August 2023.

The longevity date shown above is for the preferred revision of this part number, for a complete list of part number revisions, use the search button below.

As part of its ongoing commitment to supply continuity, Silicon Labs may provide pin-compatible and functionally equivalent replacement products if Silicon Labs determines, at its discretion, that supply chain adjustments, product improvements, market conditions, or similar business or technical issues make this necessary or advisable.

If for business, technical or other reasons beyond Silicon Labs’ reasonable control, Silicon Labs finds that it is necessary to discontinue a product, our policy is to issue an EOL notice that provides 6 months from notice to place final orders and 12 months from notice for final shipments. This policy complies with the JEDEC standard EIA/JESD48 that is commonly used in the semiconductor industry. We provide the required support for a product for its full life cycle.

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