C8051F411EK Silicon Laboratories Inc, C8051F411EK Datasheet - Page 81
![KIT EVAL FOR C8051F411](/photos/9/25/92547/c8051f411ek_sml.jpg)
C8051F411EK
Manufacturer Part Number
C8051F411EK
Description
KIT EVAL FOR C8051F411
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F411EK
Contents
Evaluation Board, CD-ROM, USB Cable, Batteries and User Guide
Processor To Be Evaluated
C8051F41x
Interface Type
USB
Silicon Manufacturer
Silicon Labs
Core Architecture
8051
Silicon Core Number
C8051F411
Silicon Family Name
C8051F41x
Kit Contents
LCD Based Evaluation Board, USB Cable, Software CD And Quick-Start Guide
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
Silicon Laboratories C8051F41x
For Use With
336-1315 - KIT REF DESIGN VOICE RECORD F41X
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1317
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8.
C8051F41x devices include an on-chip low dropout voltage regulator (REG0). The input to REG0 at the
V
enabled, the output of REG0 appears on the V
power external devices. On reset, REG0 is enabled and can be disabled by software.
The input (V
tor (4.7 µF + 0.1 µF) to ground. This capacitor will eliminate power spikes and provide any immediate
power required by the microcontroller. A settling time associated with the voltage regulator is shown in
Table 8.1.
If the internal voltage regulator is not used, the V
REGIN
Voltage Regulator (REG0)
pin can be as high as 5.25 V. The output can be selected by software to 2.1 V or 2.5 V. When
Figure 8.1. External Capacitors for Voltage Regulator Input/Output
Figure 8.2. External Capacitors for Voltage Regulator Input/Output
REGIN
) and output (V
REG0
V
V
DD
DD
DD
4.7 µF
) of the voltage regulator should both be protected with a large capaci-
4.7 µF
4.7 µF
DD
REGIN
Rev. 1.1
pin, powers the microcontroller core, and can be used to
input should be tied to V
.1 µF
.1 µF
.1 µF
V
V
C8051F410/1/2/3
V
V
REGIN
DD
REGIN
DD
DD
, as shown in Figure 8.2.
81
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