C8051F311 Silicon Laboratories Inc, C8051F311 Datasheet - Page 68

• Manufacturer Part Number: C8051F311
• Description: IC 8051 MCU 16K FLASH 28MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F31xr

Specifications of C8051F311

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: POR, PWM, Temp Sensor, WDT
• Number Of I /o: 25
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 17x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

C8051F310/1/2/3/4/5/6/7
68
V
Input Voltage Range
Input Current
Bits7–4: UNUSED. Read = 0000b; Write = don’t care.
Bit3:
Bit2:
Bit1:
Bit0:
DD
= 3.0 V; –40 to +85 °C unless otherwise specified
R/W
Bit7
Table 6.1. External Voltage Reference Circuit Electrical Characteristics
Parameter
REFSL: Voltage Reference Select.
This bit selects the source for the internal voltage reference.
0: VREF input pin used as voltage reference.
1: V
TEMPE: Temperature Sensor Enable Bit.
0: Internal Temperature Sensor off.
1: Internal Temperature Sensor on.
BIASE: Internal Analog Bias Generator Enable Bit. (Must be ‘1’ if using ADC).
0: Internal Bias Generator off.
1: Internal Bias Generator on.
UNUSED. Read = 0b. Write = don’t care.
DD
R/W
Bit6
used as voltage reference.
SFR Definition 6.1. REF0CN: Reference Control
R/W
Bit5
Sample Rate = 200 ksps;
R/W
Bit4
VREF = 3.0 V
Conditions
Rev. 1.7
REFSL
R/W
Bit3
TEMPE
R/W
Bit2
Min
0
BIASE
R/W
Bit1
Typ
12
R/W
Bit0
Max
V
DD
SFR Address:
00000000
Reset Value
0xD1
Units
µA
V