C8051F989-GUR Silicon Labs, C8051F989-GUR Datasheet - Page 162
C8051F989-GUR
Manufacturer Part Number
C8051F989-GUR
Description
8-bit Microcontrollers - MCU 4kB 512B RAM
Manufacturer
Silicon Labs
Datasheet
1.C8051F986-GUR.pdf
(322 pages)
Specifications of C8051F989-GUR
Rohs
yes
Core
8051
Data Bus Width
8 bit
Processor Series
C8051
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C8051F99x-C8051F98x
15.1. Normal Mode
The MCU is fully functional in normal mode. Figure 15.1 shows the on-chip power distribution to various
peripherals. There are two supply voltages powering various sections of the chip: V
nal core supply. All analog peripherals are directly powered from the V
CIP-51 core are powered from the 1.8 V internal core supply. RAM, PMU0 and the SmaRTClock are
always powered directly from the VBAT pin in sleep mode and powered from the core supply in all other
power modes.
162
VDD
SmaRTClock
1.8 to 3.6 V
PMU0
Figure 15.1. C8051F99x-C8051F98x Power Distribution
Sleep
Stop/Suspend
Active/Idle/
RAM
VREG0
Rev. 1.1
1.8 V
M
U
A
X
Analog Peripherals
CIP-51
Digital Peripherals
Core
SENSOR
TEMP
VREF
ADC
DD
Timers
Flash
pin. All digital peripherals and the
COMPARATOR
VOLTAGE
IREF0
+
-
SMBus
UART
SPI
DD
GPIO
and the 1.8 V inter-
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