C8051F061 Silicon Laboratories Inc, C8051F061 Datasheet - Page 33
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C8051F061
Manufacturer Part Number
C8051F061
Description
IC 8051 MCU 64K FLASH 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F06xr
Specifications of C8051F061
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
CAN, SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
24
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 2x16b, 8x10b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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1.8.
The C8051F060/1/2/3/4/5/6/7 devices have two on-chip 16-bit SAR ADCs (ADC0 and ADC1), which can
be used independently in single-ended mode, or together in differential mode. ADC0 and ADC1 can
directly access on-chip or external RAM, using the DMA interface. With a maximum throughput of 1 Msps,
the ADCs offer 16 bit performance with two available linearity grades. ADC0 and ADC1 each have the
capability to use dedicated, on-chip voltage reference circuitry or an external voltage reference source.
The ADCs are under full control of the CIP-51 microcontroller via the associated Special Function Regis-
ters. The system controller can also put the ADCs into shutdown mode to save power.
Conversions can be started in four ways; a software command, an overflow of Timer 2, an overflow of
Timer 3, or an external signal input. This flexibility allows the start of conversion to be triggered by software
events, external HW signals, or a periodic timer overflow signal. The two ADCs can operate independently,
or be synchronized to perform conversions at the same time. Conversion completions are indicated by sta-
tus bits, and can generate interrupts. The resulting 16-bit data words are latched into SFRs upon comple-
tion of a conversion. A DMA interface is also provided, which can gather conversions from the ADCs, and
directly store them to on-chip or external RAM.
ADC0 also contains Window Compare registers, which can be configured to interrupt the controller when
ADC0 data is within or outside of a specified range. ADC0 can monitor a key voltage continuously in back-
ground mode, and not interrupt the controller unless the converted data is within the specified window.
16-Bit Analog to Digital Converters
(DC, -0.2 to 0.6 V)
(DC, -0.2 to 0.6 V)
AIN0G
AIN1G
AIN0
AIN1
Figure 1.12. 16-Bit ADC Block Diagram
Configuration and Control
ADC0
ADC1
16-Bit
16-Bit
Registers
SAR
SAR
Start Conversion
Rev. 1.2
Start Conversion
16
16
C8051F060/1/2/3/4/5/6/7
ADC Data
Registers
Write to AD1BUSY
Timer 3 Overflow
CNVSTR1
Timer 2 Overflow
Write to AD0BUSY
Write to AD0BUSY
Timer 3 Overflow
CNVSTR0
Timer 2 Overflow
Interface
Compare
Window
DMA
ADC0
Logic
33
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