C8051F023R Silicon Laboratories Inc, C8051F023R Datasheet - Page 79

• Manufacturer Part Number: C8051F023R
• Description: IC 8051 MCU 64K FLASH 64TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F02xr

Specifications of C8051F023R

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: 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: 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 8x8b, 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: -
• Other names: 336-1035-2

Bits7-3:
Bit2:
Bits1-0:
Bits7-3:
Bits2-0:
AD1SC4
R/W
R/W
Bit7
Bit7
-
Figure 7.5. AMX1SL: AMUX1 Channel Select Register (C8051F020/1/2/3)
Figure 7.4. ADC1CF: ADC1 Configuration Register (C8051F020/1/2/3)
AD1SC4-0: ADC1 SAR Conversion Clock Period Bits
SAR Conversion clock is derived from system clock by the following equation, where AD1SC refers
to the 5-bit value held in AD1SC4-0. SAR conversion clock requirements are given in Table 7.1.
AD1SC
UNUSED. Read = 0b. Write = don’t care.
AMP1GN1-0: ADC1 Internal Amplifier Gain (PGA)
00: Gain = 0.5
01: Gain = 1
10: Gain = 2
11: Gain = 4
UNUSED. Read = 00000b; Write = don’t care
AMX1AD2-0: AMX1 Address Bits
000-111b: ADC1 Inputs selected as follows:
000: AIN1.0 selected
001: AIN1.1 selected
010: AIN1.2 selected
011: AIN1.3 selected
100: AIN1.4 selected
101: AIN1.5 selected
110: AIN1.6 selected
111: AIN1.7 selected
AD1SC3
R/W
R/W
Bit6
Bit6
-
=
---------------------- - 1
CLK
SYSCLK
AD1SC2
R/W
R/W
Bit5
Bit5
-
SAR1
–
AD1SC1
R/W
R/W
Bit4
Bit4
-
AD1SC0
R/W
R/W
Bit3
Bit3
-
Rev. 1.4
AMX1AD2 AMX1AD1 AMX1AD0 00000000
R/W
R/W
Bit2
Bit2
-
AMP1GN1 AMP1GN0 11111000
C8051F020/1/2/3
R/W
R/W
Bit1
Bit1
R/W
R/W
Bit0
Bit0
SFR Address:
SFR Address:
Reset Value
Reset Value
0xAB
0xAC
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