Data Sheet

AC6921A Datasheet
10
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2Electrical Characteristics
2.1 PMU Characteristics
Table 2-1
Symbol Parameter Min Typ Max Unit Test Conditions
VBAT Voltage Input 2.2 3.7 5.5 V
V
3.3
Voltage output
_ 3.3 _ V LDO5V = 5V, 100mA loading
V
1.2
_ 1.2 _ V LDO5V = 5V, 50mA loading
V13 Voltage output 1.3 V LDO5V=5V, 100mA loading
V
DACVDD
DAC Voltage _ 3.1 _ V LDO5V = 5V, 10mA loading
I
L3.3
Loading current _ _ 150 mA LDO5V = 5V
2.2 IO Input/Output Electrical Logical Characteristics
Table 2-2
IO input characteristics
Symbol Parameter Min Typ Max Unit Test Conditions
V
IL
Low-Level Input
Voltage
-0.3 _ 0.3* VDDIO V VDDIO = 3.3V
V
IH
High-Level Input
Voltage
0.7*
VDDIO
_ VDDIO+0.3 V VDDIO = 3.3V
IO output characteristics
V
OL
Low-Level Output
Voltage
_ _ 0.33 V VDDIO = 3.3V
V
OH
High-Level Output
Voltage
2.7 _ _ V VDDIO = 3.3V
2.3 Internal Resistor Characteristics
Table 2-3
Port
General
Output
High
Drive
Internal
Pull-Up
Resistor
Internal
Pull-Down
Resistor
Comment
PA0~PA12
PC0~PC5
8mA 24mA 10K 10K
1PR0 default input disable
2PR1 default output 0
3PR2 & PR3 default pull up
4USBDM & USBDP default pull
down
5internal pull-up/pull-down
resistance | accuracy ±20%
PB0~PB6 4mA 8mA 10K 10K
PR0-PR3 8mA 10mA 10K 10K
USBDM
USBDP
4mA _ 1.5K 15K