C8051F019 Silicon Laboratories Inc, C8051F019 Datasheet - Page 43

• Manufacturer Part Number: C8051F019
• Description: IC 8051 MCU 16K FLASH 48TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F018r

Specifications of C8051F019

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 2.8 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-TQFP, 48-VQFP
• Data Bus Width: 8 bit
• Data Ram Size: 1.25 KB
• Interface Type: I2C, SMBus, SPI, UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No

VDD = 3.0V, AV+ = 3.0V, -40C to +85C unless otherwise specified.
INTERNAL REFERENCE (REFBE = 1)
Output Voltage
VREF Short Circuit Current
VREF Power Supply
Current (supplied by AV+)
VREF Temperature
Coefficient
Load Regulation
VREF Turn-on Time1
VREF Turn-on Time2
VREF Turn-on Time3
EXTERNAL REFERENCE (REFBE = 0)
Input Voltage Range
Input Current
Note 1: The reference can only source current. When driving an external load, it is recommended to add a load
43
Bits7-3: UNUSED. Read = 00000b; Write = don’t care
Bit2:
Bit1:
Bit0:
C8051F018
C8051F019
R/W
Bit7
PARAMETER
-
resistor to AGND.
TEMPE: Temperature Sensor Enable Bit
0: Internal Temperature Sensor Off.
1: Internal Temperature Sensor On.
BIASE: Bias Enable Bit for ADC
0: Internal Bias Off.
1: Internal Bias On (required for use of ADC).
REFBE: Internal Voltage Reference Buffer Enable Bit
0: Internal Reference Buffer Off. System reference can be driven from external source on
1: Internal Reference Buffer On. System reference provided by internal voltage reference.
VREF pin.
R/W
Bit6
-
Figure 7.2. REF0CN: Reference Control Register
R/W
Bit5
25C ambient
Load = (0-to-200A) to AGND (Note 1)
4.7F tantalum, 0.1F ceramic bypass
0.1F ceramic bypass
no bypass cap
Table 7.1. Reference Electrical Characteristics
-
R/W
Bit4
CONDITIONS
-
Rev. 1.2
R/W
Bit3
-
TEMPE
R/W
Bit2
MIN
2.34
1.00
BIASE
R/W
Bit1
TYP
2.43
0.5
50
15
20
10
2
0
REFBE
R/W
Bit0
(AV+)
– 0.3V
MAX
2.50
30
1
00000000
SFR Address:
Reset Value
ppm/A
0xD1
ppm/C
UNITS
mA
A
A
ms
s
s
V
V