C8051F047 Silicon Laboratories Inc, C8051F047 Datasheet - Page 97

• Manufacturer Part Number: C8051F047
• Description: IC 8051 MCU 32K FLASH 64TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F04xr

Specifications of C8051F047

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: CAN, EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K 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 13x10b
• 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: -
• Other names: 336-1159

Bits7-3:
Bit2:
Bits1-0:
AD2SC4
R/W
Bit7
AD2SC4-0: ADC2 SAR Conversion Clock Period Bits
SAR Conversion clock is derived from system clock by the following equation, where
AD2SC refers to the 5-bit value held in AD2SC4-0. SAR conversion clock requirements are
given in Table 7.2.
UNUSED. Read = 0b. Write = don’t care.
AMP2GN1-0: ADC2 Internal Amplifier Gain (PGA)
00: Gain = 0.5
01: Gain = 1
10: Gain = 2
11: Gain = 4
*Note: AD2SC is the rounded-up result.
AD2SC
AD2SC3
R/W
Bit6
SFR Definition 7.3. ADC2CF: ADC2 Configuration

SYSCLK
---------------------- - 1
CLK
AD2SC2
R/W
Bit5
SAR2
–
AD2SC1
R/W
Bit4
*
or
AD2SC0
Rev. 1.5
R/W
Bit3
CLK
C8051F040/1/2/3/4/5/6/7
SAR2
Bit2
R
-
=
---------------------------- –
AD2SC
SYSCLK
AMP2GN1 AMP2GN0 11111000
R/W
Bit1
+
1
SFR Address:
SFR Page:
R/W
Bit0
0xBC
2
Reset Value
97