參數(shù)資料
型號: SAL-XC866L-4FRA
廠商: INFINEON TECHNOLOGIES AG
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 75 MHz, MICROCONTROLLER, PDSO38
封裝: GREEN, PLASTIC, TSSOP-38
文件頁數(shù): 67/113頁
文件大小: 2289K
代理商: SAL-XC866L-4FRA
SAL-XC866
Functional Description
PRELIMINARY
Data Sheet
53
V1.0, 2011-02
3.6
Power Supply System with Embedded Voltage Regulator
The SAL-XC866 microcontroller requires two different levels of power supply:
3.3 V or 5.0 V for the Embedded Voltage Regulator (EVR) and Ports
2.5 V for the core, memory, on-chip oscillator, and peripherals
Figure 19 shows the SAL-XC866 power supply system. A power supply of 3.3 V or
5.0 V must be provided from the external power supply pin. The 2.5 V power supply for
the logic is generated by the EVR. The EVR helps to reduce the power consumption of
the whole chip and the complexity of the application board design.
The EVR consists of a main voltage regulator and a low power voltage regulator. In
active mode, both voltage regulators are enabled. In power-down mode, the main
voltage regulator is switched off, while the low power voltage regulator continues to
function and provide power supply to the system with low power consumption.
Figure 19
SAL-XC866 Power Supply System
EVR Features:
Input voltage (VDDP): 3.3 V/5.0 V
Output voltage (VDDC): 2.5 V ± 7.5%
Low power voltage regulator provided in power-down mode
VDDC and VDDP prewarning detection
VDDC brownout detection
On-chip
OSC
CPU &
Memory
VDDC(2.5V)
VDDP
VSSP
GPIO
Ports
(P0-P3)
EVR
Peripheral
logic
FLASH
ADC
PLL
XTAL1&
XTAL2
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