C8051F521-IMR Silicon Labs, C8051F521-IMR Datasheet - Page 136

• Manufacturer Part Number: C8051F521-IMR
• Description: 8-bit Microcontrollers - MCU 8KB 12ADC 125C 10Pin MCU
• Manufacturer: Silicon Labs

Specifications of C8051F521-IMR

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 8 KB
• Data Ram Size: 256 B
• On-chip Adc: Yes
• Package / Case: DFN-10
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 6
• Interface Type: SPI, UART
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 6
• Number Of Timers: 3
• On-chip Dac: No
• Processor Series: C8051
• Program Memory Type: Flash
• Factory Pack Quantity: 1500
• Supply Voltage - Max: 2.7 V, 5.25 V
• Supply Voltage - Min: 2 V, 2.7 V

C8051F52x/F53x
14.1.1. Internal Oscillator Suspend Mode
When software writes a logic 1 to SUSPEND (OSCICN.5), the internal oscillator is suspended. If the sys-
tem clock is derived from the internal oscillator, the input clock to the peripheral or CIP-51 will be stopped
until one of the following events occur:



When one of the internal oscillator awakening events occur, the internal oscillator, CIP-51, and affected
peripherals resume normal operation, regardless of whether the event also causes an interrupt. The CPU
resumes execution at the instruction following the write to SUSPEND.
Note: Please refer to Section “20.7. Internal Oscillator Suspend Mode” on page 212 for a note about suspend mode
136
Port 0 Match Event.
Port 1 Match Event.
Comparator 0 enabled and output is logic 0.
in older silicon revisions.
Rev. 1.4