C8051F331 Silicon Laboratories Inc, C8051F331 Datasheet - Page 57

• Manufacturer Part Number: C8051F331
• Description: IC 8051 MCU 8K FLASH 20MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F33xr

Specifications of C8051F331

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: POR, PWM, 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
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

Table 7.1. Voltage Reference Electrical Characteristics
VDD = 3.0 V; –40 to +85 °C unless otherwise specified.
VREF Short-Circuit Current
Reference Bias Generator
Power Supply Rejection
VREF Turn-on Time 1
VREF Turn-on Time 2
VREF Turn-on Time 3
Input Voltage Range
ADC Bias Generator
VREF Temperature
Load Regulation
Output Voltage
Input Current
Parameter
Coefficient
Sample Rate = 200 ksps; VREF =
4.7 µF tantalum, 0.1 µF ceramic
REFBE = ‘1’ or TEMPE = ‘1’ or
BIASE = ‘1’ or AD0EN = ‘1’ or
Load = 0 to 200 µA to AGND
External Reference (REFBE = 0)
Internal Reference (REFBE = 1)
0.1 µF ceramic bypass
Power Specifications
25 °C ambient
no bypass cap
IOSCEN = ‘1’
IDA0EN = ‘1’
Conditions
bypass
3.0 V
C8051F330/1, C8051F330D
Rev. 1.2
2.38
Min
—
—
—
—
—
—
—
—
—
—
0
2.44
Typ
140
100
0.5
15
20
10
12
40
—
—
2
V
Max
2.50
10
—
—
—
—
—
—
—
—
—
DD
ppm/µA
ppm/°C
ppm/V
Units
mA
ms
µA
µA
µA
µs
µs
V
V
57