C8051F320 Silicon Laboratories Inc, C8051F320 Datasheet - Page 56
C8051F320
Manufacturer Part Number
C8051F320
Description
IC 8051 MCU 16K FLASH 32LQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F32xr
Datasheet
1.C8051F320R.pdf
(256 pages)
Specifications of C8051F320
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
25
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
2.25K 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
32-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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C8051F320/1
56
INTERNAL REFERENCE (REFBE = 1)
Output Voltage
VREF Short-Circuit Current
VREF Temperature Coefficient
Load Regulation
VREF Turn-on Time 1
VREF Turn-on Time 2
VREF Turn-on Time 3
Power Supply Rejection
EXTERNAL REFERENCE (REFBE = 0)
Input Voltage Range
Input Current
BIAS GENERATORS
ADC Bias Generator
Reference Bias Generator
Bits7-3:
Bit3:
Bit2:
Bit1:
Bit0:
R/W
Bit7
-
PARAMETER
UNUSED. Read = 00000b; Write = don’t care.
REFSL: Voltage Reference Select.
This bit selects the source for the internal voltage reference.
0: VREF pin used as voltage reference.
1: VDD used as voltage reference.
TEMPE: Temperature Sensor Enable Bit.
0: Internal Temperature Sensor off.
1: Internal Temperature Sensor on.
BIASE: Internal Analog Bias Generator Enable Bit.
0: Internal Bias Generator off.
1: Internal Bias Generator on.
REFBE: Internal Reference Buffer Enable Bit.
0: Internal Reference Buffer disabled.
1: Internal Reference Buffer enabled. Internal voltage reference driven on the VREF pin.
R/W
Bit6
-
VDD = 3.0 V; -40°C TO +85°C UNLESS OTHERWISE SPECIFIED
Table 6.1. Voltage Reference Electrical Characteristics
Figure 6.2. REF0CN: Reference Control Register
R/W
Bit5
-
25°C ambient
Load = 0 to 200 µA to GND
4.7µF tantalum, 0.1µF ceramic bypass
0.1µF ceramic bypass
no bypass cap
Sample Rate = 200 ksps; VREF = 3.0 V
BIASE = ‘1’
R/W
Bit4
-
CONDITIONS
Rev. 1.1
REFSL
R/W
Bit3
TEMPE
R/W
Bit2
MIN
2.38
BIASE
0
R/W
Bit1
TYP
2.44
140
100
1.5
15
20
10
12
40
2
REFBE
R/W
Bit0
MAX
VDD
2.50
10
SFR Address:
00000000
Reset Value
0xD1
ppm/µA
UNITS
ppm/°C
ppm/V
mA
µA
µA
µA
ms
µs
µs
V
V