SimCom SIM8905A User Manual page 32

Digital-logic Characteristics
Table 22: 1.8 V digital I/O characteristics
Parameter Description
V
High-level input voltage
IH
V
Low-level input voltage
IL
V
High-level output voltage
OH
V
Low-level output voltage
OL
Table 23: USIM interface characteristics (USIM_VDD=1.8V/2.95V)
Parameter Description
V
High-level input voltage
IH
V
Low-level input voltage
IL
V
High-level output voltage
OH
V
Low-level output voltage
OL
Table 24: SD interface characteristics (SD_LDO11 =1.8V)
Parameter Description
V
High-level input voltage
IH
V
Low-level input voltage
IL
V
High-level output voltage
OH
V
Low-level output voltage
OL
Table 25: SD interface characteristics (SD_LDO11 =2.95V)
Parameter Description
V
High-level input voltage
IH
V
Low-level input voltage
IL
V
High-level output voltage
OH
V
Low-level output voltage
OL
Min
1.17
-
1.35
-
Min
0.7* USIM_VDD
-0.3
0.8*USIM_VDD
0
Min
1.27
-0.3
1.4
0
Min
0.625* SD_LDO11
-0.3
0.75* SD_LDO11
0
- 32 -
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Typ Max
- -
- 0.63
- -
- 0.45
Typ Max
-
USIM_VDD+0.3
-
0.2* USIM_VDD
-
USIM_VDD
-
0.4
Typ Max
-
2
-
0.58
-
-
-
0.45
Typ Max
-
SD_LDO11+0.3
-
0.25* SD_LDO11
-
SD_LDO11
-
0.125* SD_LDO11
Unit
V
V
V
V
Unit
V
V
V
V
Unit
V
V
V
V
Unit
V
V
V
V