8-bit CISC microcontroller featuring an 8051 core, 8KB Flash program memory, and 512B RAM. This surface-mount device offers 16 programmable I/Os, four timers, and I2C, SMBus, SPI, and UART interfaces. Housed in a 20-pin QFN EP package with exposed pad, it operates up to 25 MHz and supports a voltage range of 2.4V to 3.6V, with an automotive temperature range of -40°C to 85°C.
PackageQFN EP
MountingSurface Mount
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Technical Specifications
Silicon Labs C8051F991-GMR 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
20
PCB
20
Package Length (mm)
3
Package Width (mm)
3
Package Height (mm)
0.53
Seated Plane Height (mm)
0.55
Pin Pitch (mm)
0.5
Package Material
Plastic
Mounting
Surface Mount
Family Name
C8051F99x
Data Bus Width
8bit
Instruction Set Architecture
CISC
Maximum Clock Rate
25MHz
Maximum CPU Frequency
25MHz
Device Core
8051
Program Memory Type
Flash
Program Memory Size
8KB
RAM Size
512B
Number of Programmable I/Os
16
Core Architecture
8051
Programmability
Yes
Number of Timers
4
Interface Type
I2C/SMBus/SPI/UART
CAN
0
I2C
1
SPI
1
Ethernet
0
UART
1
USART
0
USB
0
I2S
0
Max Operating Supply Voltage
3.6V
Min Operating Temperature
-40°C
Max Operating Temperature
85°C
Compliance
Cage Code
6SQ24
EU RoHS
Yes
HTS Code
8542390001
Schedule B
8542390000
ECCN
EAR99
Automotive
Yes
RoHS Versions
2011/65/EU, 2015/863
Datasheet
Silicon Labs C8051F991-GMR Datasheet
Download the complete datasheet for Silicon Labs C8051F991-GMR to view detailed technical specifications.
This datasheet cannot be embedded due to technical restrictions.