C8051F804-GS Silicon Laboratories Inc, C8051F804-GS Datasheet - Page 69

• Manufacturer Part Number: C8051F804-GS
• Description: IC MCU 8BIT 16KB FLASH 16SOIC
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F80xr

Specifications of C8051F804-GS

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Cap Sense, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 13
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-SOIC (3.9mm Width)
• Processor Series: C8051F8x
• Core: 8051
• Data Bus Width: 16 bit
• Data Ram Size: 512 B
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 13
• Number Of Timers: 3
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F800DK
• Minimum Operating Temperature: - 55 C
• On-chip Adc: 10 bit, 12 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 336-1773-5

12.1. Comparator Multiplexer
C8051F80x-83x devices include an analog input multiplexer to connect Port I/O pins to the comparator
inputs. The Comparator0 inputs are selected in the CPT0MX register (SFR Definition 12.3). The CMX0P3–
CMX0P0 bits select the Comparator0 positive input; the CMX0N3–CMX0N0 bits select the Comparator0
negative input. Important Note About Comparator Inputs: The Port pins selected as comparator inputs
should be configured as analog inputs in their associated Port configuration register, and configured to be
skipped by the Crossbar (for details on Port configuration, see Section “23.6. Special Function Registers
for Accessing and Configuring Port I/O” on page 152).
VREG Output
VREG Output
Figure 12.3. Comparator Input Multiplexer Block Diagram
P1.0
P1.2
P1.4
P1.6
P1.1
P1.3
P1.5
P1.7
P0.0
P0.2
P0.4
P0.6
P0.1
P0.3
P0.5
P0.7
CPT0MX
Rev. 1.0
CP0 +
CP0 -
Note: P1.4-P1.7
are not available
on the 16-pin
packages.
+
-
C8051F80x-83x
VDD
GND
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