C8051F700-GQR Silicon Laboratories Inc, C8051F700-GQR Datasheet - Page 65

• Manufacturer Part Number: C8051F700-GQR
• Description: MCU 8-Bit C8051F70x 8051 CISC 15KB Flash 1.8V/3V 64-Pin TQFP T/R
• Manufacturer: Silicon Laboratories Inc

Specifications of C8051F700-GQR

• Package: 64TQFP
• Device Core: 8051
• Family Name: C8051F70x
• Maximum Speed: 25 MHz
• Ram Size: 512 Byte
• Program Memory Size: 15 KB
• Operating Supply Voltage: 1.8|3 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 54
• Interface Type: I2C/SMBus/SPI/UART
• On-chip Adc: 16-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 4

10.5. ADC0 Analog Multiplexer
ADC0 on the C8051F700/2/4/6/8 and C8051F710/2/4/6 uses an analog input multiplexer to select the pos-
itive input to the ADC. Any of the following may be selected as the positive input: Port 0 or Port 1 I/O pins,
the on-chip temperature sensor, or the positive power supply (V
the ADC0MX register described in SFR Definition 10.9.
Important Note About ADC0 Input Configuration: Port pins selected as ADC0 inputs should be config-
ured as analog inputs, and should be skipped by the Digital Crossbar. To configure a Port pin for analog
input, set the corresponding bit in register PnMDIN to 0. To force the Crossbar to skip a Port pin, set the
corresponding bit in register PnSKIP to 1. See Section “28. Port Input/Output” on page 180 for more Port
I/O configuration details.
Sensor
Temp
VREG Output
Figure 10.6. ADC0 Multiplexer Block Diagram
P0.0
P1.7
GND
VDD
ADC0MX
Rev. 1.0
AMUX
DD
). The ADC0 input channel is selected in
C8051F70x/71x
ADC0
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