SAF-XC822-1FRI(2010) 查看數據表（PDF） - Infineon Technologies

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SAF-XC822-1FRI
(Rev.:2010)

8-Bit Single-Chip Microcontroller

Infineon Technologies 

XC822/824

Electrical Parameters

3.2.2 Supply Threshold Characteristics

Table 9 provides the characteristics of the supply threshold in the XC822/824.

5.0V

VDDP

VDDPSRR

VDDPPW/VDDPBOPD

VDDPBOA

2.5V

VDDC

VDDCSRR

VDDCPW

VDDCBOA

VDDCBOPD

VDDCRDR

Figure 9 Supply Threshold Parameters

Table 9

Supply Threshold Parameters (Operating Conditions apply)

Parameters

Symbol

Limit Values Unit

Min. Typ. Max.

VDDP prewarning voltage1)2)

VDDP brownout voltage in active mode3)2)

VDDPPW CC 3.0 3.6 4.5 V

VDDPBOA CC 2.65 2.75 2.87 V

VDDP brownout voltage in power down

mode2)3)

VDDPBOPD CC 3.0 3.6 4.5 V

VDDP system reset release voltage2)4)

VDDPSRR CC 2.7 2.8

VDDC prewarning voltage2)5)

VDDCPW CC 2.3 2.4

VDDC brownout voltage in active mode2)

VDDCBOA CC 2.25 2.3

VDDC brownout voltage in power down mode2) VDDCBOPD CC 1.35 1.5

VDDC system reset release voltage2)4)

VDDCSRR CC 2.28 2.3

2.92 V

2.48 V

2.42 V

1.95 V

2.47 V

RAM data retention voltage

VDDCRDR CC 1.1 –

–

V

1) Detection is enabled via SDCON register in active mode. It is automatically disabled in power down mode.

Detection should be disabled for VDDP less than maximum of VDDPPW.

2) This parameter has a hysteresis of 50 mV.

3) Detection is enabled via SDCON register. Detection must be disabled for application with VDDP less than the

specified values.

4) VDDPSRR and VDDCSRR must be met before the system reset is released.

5) Detection is enabled via SDCON register in active mode. It is automatically disabled in power down mode.

Data Sheet

25

V1.1, 2010-10

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