8-bit CISC microcontroller featuring an 8051 core, 128KB Flash program memory, and 8.25KB RAM. This surface-mount device operates at up to 50 MHz, offers 40 programmable I/Os, and includes 6 timers. Connectivity options include I2C, SPI, and 2 UART interfaces. Housed in a 48-pin QFN EP package with an exposed pad, it supports operating voltages from 2.5V to 5V and operates within a -40°C to 125°C temperature range. 32 ADC channels are available.
PackageQFN EP
MountingSurface Mount
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Technical Specifications
Silicon Labs C8051F581-IMR technical specifications.
General
Basic Package Type
Non-Lead-Frame SMT
Package Family Name
QFN
Package/Case
QFN EP
Package Description
Quad Flat No Lead Package, Exposed Pad
Lead Shape
No Lead
Pin Count
48
PCB
48
Package Length (mm)
7
Package Width (mm)
7
Package Height (mm)
0.95(Max)
Seated Plane Height (mm)
0.9
Pin Pitch (mm)
0.5
Package Material
Plastic
Mounting
Surface Mount
Family Name
C8051F58x
Data Bus Width
8bit
Instruction Set Architecture
CISC
Maximum Clock Rate
50MHz
Maximum CPU Frequency
50MHz
Device Core
8051
Program Memory Type
Flash
Program Memory Size
128KB
RAM Size
8.25KB
Number of Programmable I/Os
40
Core Architecture
8051
Programmability
Yes
Number of Timers
6
Interface Type
I2C/SMBus/SPI/UART
CAN
0
I2C
1
SPI
1
Ethernet
0
UART
2
USART
0
USB
0
I2S
0
Max Operating Supply Voltage
5.25V
Min Operating Temperature
-40°C
Max Operating Temperature
125°C
ADC Channels
32
Number of ADCs
Single
Compliance
Cage Code
6SQ24
EU RoHS
Yes
HTS Code
8542390001
Schedule B
8542390000
ECCN
3A991.a.2
Automotive
Yes
AEC Qualified
Yes
PPAP
No
RoHS Versions
2011/65/EU, 2015/863
Datasheet
Silicon Labs C8051F581-IMR Datasheet
Download the complete datasheet for Silicon Labs C8051F581-IMR to view detailed technical specifications.
This datasheet cannot be embedded due to technical restrictions.