C8051F066-GQ Silicon Laboratories Inc, C8051F066-GQ Datasheet - Page 67

• Manufacturer Part Number: C8051F066-GQ
• Description: MCU 8-Bit C8051F06x 8051 CISC 32KB Flash 3.3V 100-Pin TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F06xr

Specifications of C8051F066-GQ

• Package: 100TQFP
• Device Core: 8051
• Family Name: C8051F06x
• Maximum Speed: 25 MHz
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 59
• Interface Type: I2C/SMBus/SPI/UART
• On-chip Adc: 2-chx16-bit
• Number Of Timers: 5
• Ram Size: 4.25 KB
• Program Memory Size: 32 KB
• Program Memory Type: Flash
• Operating Temperature: -40 to 85 °C
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 59
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 2x16b
• Oscillator Type: Internal
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 336-1221

AINnG
The offset register value affects the offset at the analog input as follows:
The gain register value affects the slope of the ADC transfer function as follows:
AINn
Offset Register (14 Bits)
Gain Register (13 Bits)
0x3FFF
0x1FFF
0x2000
0x0000
0x1000
0x0000
Figure 5.21. Offset and Gain Calibration Block Diagram
Offset Change
Figure 5.20. Offset and Gain Register Mapping
Slope Change
+
Offset
-

0x2000 Offset Register
----------------------------------------------------------- -

Gain Register 0x1000
-------------------------------------------------------- -
Approximate Offset Change (V)
Approximate Slope Change
–
Rev. 1.2
8192
ADCn
VREF
+3.125% * VREF
-3.125% * VREF
4096
+
C8051F060/1/2/3/4/5/6/7
+3.125%
-3.125%
–
0
0
Gain

3.125% VREF

3.125%
16

ADCn Data
67