C8051F502-IMR Silicon Laboratories Inc, C8051F502-IMR Datasheet - Page 47

• 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

Table 5.6. Internal High-Frequency Oscillator Electrical Characteristics
V
Oscillator Frequency
Oscillator Supply Current 
(from V
Internal Oscillator Suspend
OSCICN[7:6] = 00b
ZTCEN = 1
Wake-up Time From Suspend OSCICN[7:6] = 00b
Power Supply Sensitivity
Temperature Sensitivity
DD
1. VREGMIN is the minimum output of the voltage regulator for its low setting (REG0CN: REG0MD = 0b). See
2. This is the average frequency across the operating temperature range.
3. Use temperature coefficients
= 1.8 to 2.75 V, –40 to +125 °C unless otherwise specified; Using factory-calibrated settings.
Table 5.8, “Voltage Regulator Electrical Characteristics,” on page 48.
following equation:
where f0 is the internal oscillator frequency at 25 °C and T0 is 25 °C.
DD
Parameter
)
3
f(T) = f0 x (1 + TC
IFCN = 111b;
VDD > VREGMIN
IFCN = 111b;
VDD < VREGMIN
Internal Oscillator On
OSCICN[7:6] = 11b
Temp = 25 °C
Temp = 85 °C
Temp = 125 °C
Constant Temperature
Constant Supply
TC
TC
TC
1
2
1
and
Conditions
TC
2
to calculate the new internal oscillator frequency using the
1
x (T – T0) + TC
Rev. 1.2
1
1
24
24
2
Min
–
–
x (T – T0)
—
—
—
—
—
—
—
—
0.5%
1.0%
C8051F50x/F51x
–0.65
0.10
Typ
24
24
830
110
190
2
5.0
66
)
1
2
2
24 + 0.5%
24 + 1.0%
1300
Max
—
—
—
—
—
—
—
ppm/°C
ppm/°C
Units
MHz
%/V
µA
µA
µs
2
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