參數(shù)資料
型號(hào)： SAK-TC1782-320F180HL
廠商： INFINEON TECHNOLOGIES AG
元件分類(lèi)： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 180 MHz, RISC MICROCONTROLLER, PQFP176
封裝： GREEN, PLASTIC, LQFP-176
文件頁(yè)數(shù)： 93/113頁(yè)
文件大?。?/td> 3371K
代理商： SAK-TC1782-320F180HL
TC1782
Electrical ParametersAC Parameters
Target Data Sheet/ACDC Target Specification 39
V 0.7 Preliminary, 2010-03
are internally directly connected. It is recommended that the power pins of the same
voltage are driven by a single power supply.
1. The PORST signal may be deactivated after all
V
DD5, VDD3.3, VDD1.3, and VAREF power-
supplies and the oscillator have reached stable operation, within the normal
operating conditions.
2. At normal power down the PORST signal should be activated within the normal
operating range, and then the power supplies may be switched off. Care must be
taken that all Flash write or delete sequences have been completed.
3. At power fail the PORST signal must be activated at latest when any 3.3 V or 1.3 V
power supply voltage falls 12% below the nominal level. If, under these conditions,
the PORST is activated during a Flash write, only the memory row that was the target
of the write at the moment of the power loss will contain unreliable content. In order
to ensure clean power-down behavior, the PORST signal should be activated as
close as possible to the normal operating voltage range.
4. In case of a power-loss at any power-supply, all power supplies must be powered-
down, conforming at the same time to the rules number 2 and 4.
5. Although not necessary, it is additionally recommended that all power supplies are
powered-up/down together in a controlled way, as tight to each other as possible.
6. Additionally, regarding the ADC reference voltage
V
AREF:
–
V
AREF must power-up at the same time or later then VDDM, and
–
V
AREF
must power-down either earlier or at latest to satisfy the condition
V
AREF < VDDM + 0.5 V. This is required in order to prevent discharge of VAREF filter
capacitance through the ESD diodes through the
V
DDM power supply. In case of
discharging the reference capacitance through the ESD diodes, the current must
be lower than 5 mA.
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