C8051F502-IMR Silicon Laboratories Inc, C8051F502-IMR Datasheet - Page 44

• Manufacturer Part Number: C8051F502-IMR
• Description: MCU 8-Bit C8051F50x 8051 CISC 64KB Flash 2.5V/3.3V/5V 32-Pin QFN EP T/R
• Manufacturer: Silicon Laboratories Inc

Specifications of C8051F502-IMR

• Package: 32QFN EP
• Device Core: 8051
• Family Name: C8051F50x
• Maximum Speed: 50 MHz
• Ram Size: 4.25 KB
• Program Memory Size: 64 KB
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 25
• Interface Type: I2C/SPI/UART
• On-chip Adc: 32-chx12-bit
• Operating Temperature: -40 to 125 °C
• Number Of Timers: 4

C8051F50x/F51x
Note: With system clock frequencies greater than 25 MHz, the VDD monitor level should be set to the high threshold
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with an external regulator powering VDD directly. See Figure 10.2 on page 85 for the recommended power
supply connections.
(VDMLVL = 1b in SFR VDM0CN) to prevent undefined CPU operation. The high threshold should only be used
Figure 5.1. Minimum VDD Monitor Threshold vs. System Clock Frequency
Rev. 1.2