C8051F352 Silicon Laboratories Inc, C8051F352 Datasheet - Page 22

• Manufacturer Part Number: C8051F352
• Description: IC 8051 MCU 8K FLASH 32LQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F35xr

Specifications of C8051F352

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 50MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: POR, PWM, Temp Sensor, WDT
• Number Of I /o: 17
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x16b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Processor Series: C8051F35x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 4
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 16 bit
• On-chip Dac: 8 bit
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No

C8051F350/1/2/3
1.4.
The C8051F350/1/2/3 include a fully-differential, 24-bit (C8051F350/1) or 16-bit (C8051F352/3) Sigma-
Delta Analog to Digital Converter (ADC) with on-chip calibration capabiliites. Two separate decimation fil-
ters can be programmed for throughputs of up to 1 kHz. An internal 2.5 V reference is available, or a differ-
ential external reference can be used for ratiometric measurements. A Programmable Gain Amplifier
(PGA) is included, with eight gain settings up to 128x. An analog front-end multiplexer connects the differ-
ential inputs to eight external pins, the internal temperature sensor, or AGND. The on-chip input buffers
can be used to provide a high input impedance for direct connection to sensitive transducers. An 8-bit off-
set DAC allows for correction of large input offset voltages.
22
Temperature
External
Inputs
Sensor
Eight
24 or 16-Bit Analog to Digital Converter (ADC0)
Sources
Burnout
Current
AIN+
AIN-
AGND
AV+
Figure 1.7. ADC0 Block Diagram
Buffers
Input
Offset
8-Bit
DAC
Σ
Rev. 0.4
Σ
1x to 128x
External
Internal
2.5V or
VREF
PGA
Modulator
SINC
Fast Filter
3
Filter