C8051F131R Silicon Labs, C8051F131R Datasheet - Page 37

• Manufacturer Part Number: C8051F131R
• Description: 8-bit Microcontrollers - MCU 128kB 100MIPS 8448B RAM
• Manufacturer: Silicon Labs

Specifications of C8051F131R

• Product Category: 8-bit Microcontrollers - MCU
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 100 MHz
• Program Memory Size: 128 KB
• Data Ram Size: 8.25 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.7 V to 3.6 V
• Package / Case: TQFP-64
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 9
• Data Rom Size: 64 KB
• Interface Type: I2C, SMBus, SPI, UART
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 32
• Number Of Timers: 16 bit
• Processor Series: C8051
• Program Memory Type: Flash
• Factory Pack Quantity: 500
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 3 V

1.11. Analog Comparators
Two analog comparators with dedicated input pins are included on-chip. The comparators have software
programmable hysteresis and response time. Each comparator can generate an interrupt on a rising edge,
falling edge, or both. The interrupts are capable of waking up the MCU from sleep mode, and Comparator
0 can be used as a reset source. The output state of the comparators can be polled in software or routed to
Port I/O pins via the Crossbar. The comparators can be programmed to a low power shutdown mode when
not in use.
(Port I/O)
CPn+
CPn-
2 Comparators
Figure 1.16. Comparator Block Diagram
CPn Output
+
-
CPn
CROSSBAR
Rev. 1.4
C8051F120/1/2/3/4/5/6/7
Control)
SFR's
(Data
and
C8051F130/1/2/3
Interrupt
Handler
CIP-51
and
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