C8051F019 Silicon Laboratories Inc, C8051F019 Datasheet - Page 27

• Manufacturer Part Number: C8051F019
• Description: IC 8051 MCU 16K FLASH 48TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F018r

Specifications of C8051F019

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 2.8 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-TQFP, 48-VQFP
• Data Bus Width: 8 bit
• Data Ram Size: 1.25 KB
• Interface Type: I2C, SMBus, SPI, UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No

27
C8051F018
C8051F019
Timer2, Timer3 Overflow;
(ADSTM[1:0]=00, 01, 11)
1.000
0.900
0.800
0.700
0.600
0.500
(Volts)
Write 1 to ADBUSY
(ADSTM[1:0]=10)
Figure 5.2. 10-Bit ADC Track and Conversion Example Timing
SAR Clocks
SAR Clocks
SAR Clocks
ADCTM=1
ADCTM=0
ADCTM=1
ADCTM=0
CNVSTR
-50
Figure 5.3. Temperature Sensor Transfer Function
A. ADC Timing for External Trigger Source
B. ADC Timing for Internal Trigger Sources
Track or Convert
Low Power or
Low Power or
Convert
Convert
Track Or Convert
1
1
Track
2
2
Track
3
3
0
4
4
1
5
5
2
6
6
Rev. 1.2
3
7
7
Convert
4
8
8
5
9
9
V
10 11 12 13 14 15 16 17 18 19
10 11 12 13 14 15 16
TEMP
6
Convert
7
Convert
Convert
50
8
= 0.00286(TEMP
9
10 11 12 13 14 15 16
100
C
Low Power Mode
) + 0.776
Track
Low Power Mode
Track
(Celsius)