C8051F121

IC MCU 8BIT 128KB FLASH 64TQFP
Part Description

8051 C8051F12x Microcontroller IC 8-Bit 100MHz 128KB (128K x 8) FLASH 64-TQFP (10x10)

Quantity 888 Available (as of May 5, 2026)
Product CategoryMicrocontrollers
ManufacturerSilicon Labs
Manufacturing StatusObsolete
Datasheet

Specifications

Part Package 64-TQFP
Device Package 64-TQFP (10×10)
Mounting Method Surface Mount
Operating Temperature -40°C ~ 85°C (TA)
Core Processor: 8051
Core Size: 8-Bit
Speed: 100MHz
Connectivity: EBI/EMI, SMBus (2-Wire/I2C), SPI, UART/USART
Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number of I/O: 32
Program Memory Size: 128KB (128K x 8)
Program Memory Type: FLASH
RAM Size: 8.25K x 8
Voltage – Supply (Vcc/Vdd): 3V ~ 3.6V
Data Converters: A/D 8x8b, 8x12b; D/A 2x12b
Oscillator Type: Internal

Environmental

REACH ComplianceREACH Unknown
RoHS ComplianceRoHS non-compliant
Moisture Sensitivity Level3 (168 Hours)
ECCN3A001A3
HTS Code8542.31.0001
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