C8051F502-IMR Silicon Laboratories Inc, C8051F502-IMR Datasheet - Page 85

• 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

SFR Definition 10.1. REG0CN: Regulator Control
SFR Address = 0xC9; SFR Page = 0x00
Name
Reset
Bit
3:1
Type
7
6
5
4
0
Bit
DROPOUT
Reserved
REG0MD
REGDIS
REGDIS
Unused
Unused
Name
R/W
Figure 10.2. External Capacitors for Voltage Regulator Input/Output—
7
0
Reserved
Voltage Regulator Disable Bit.
0: Voltage Regulator Enabled
1: Voltage Regulator Disabled
Read = 1b; Must Write 1b.
Read = 0b; Write = Don’t Care.
Voltage Regulator Mode Select Bit.
0: Voltage Regulator Output is 2.1V.
1: Voltage Regulator Output is 2.6V.
Read = 000b. Write = Don’t Care.
Voltage Regulator Dropout Indicator.
0: Voltage Regulator is not in dropout
1: Voltage Regulator is in or near dropout.
R/W
1
6
V
DD
4.7 µF
R
5
0
Regulator Disabled
REG0MD
R/W
Rev. 1.2
4
1
.1 µF
Function
R
3
0
V
V
C8051F50x/F51x
REGIN
DD
R
2
0
R
1
0
DROPOUT
R
0
0
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