LARA-R6 series - Data sheet

UBX-21004391 - R09

Electrical specifications

Page 29 of 41

C1-Public

4.2.13 I2C pins

I2C lines (SCL and SDA) are compliant with the I2C-bus standard mode specification. See the I2C-bus

specification [15] for detailed electrical characteristics. The values in Table 26 related to I2C-bus

standard mode specifications are for information only.

Parameter

Min

Typical

Max

Unit

Remarks

Internal supply for GDI domain

1.80

V

Digital I/O Interfaces supply (V_INT)

Low-level input

-0.30

0.00

0.63

V

High-level input

1.17

1.80

2.10

V

Low-level output

0.00

0.45

V

Max value at IOL = +2.0 mA

Internal pull-up resistance

2.2

k

Input/output leakage current

-1

1

µ

A

VIN =0 V or VIN =1.8V

Clock frequency on SCL

100

kHz

Table 26: I2C pins characteristics

4.2.14 Generic Digital Interfaces pins

Parameter

Min

Typical

Max

Unit

Remarks

Internal supply for GDI domain

1.80

V

Digital I/O Interfaces supply (V_INT)

Low-level input

-0.30

0.00

0.63

V

High-level input

1.17

1.80

2.10

V

Low-level output

0.00

0.45

V

Max value at IOL = +2.0 mA

High-level output

1.35

1.80

V

Min value at IOH = –2.0 mA

Input leakage current

-1

1

µ

A

VIN =0 V or VIN =1.8V

Internal pull-up /-down resistance

55

390

k

Table 27: GDI pins characteristics

4.2.14.1 AC characteristics of clock output pin (GPIO6)

Parameter Description

Min

Typical

Max

Unit

Remarks

1/T1

GPIO6 clock output frequency

12.288

MHz

AT+UMCLK=2

Table 28: AC characteristics of GPIO6 clock output pin

4.2.14.2 AC characteristics of I2S pins

I2S_CLK

T2

I2S_WA

T1

Figure 3: AC characteristics of digital audio interface (I2S) pins in Normal I2S mode (long synchronization signal), host role

Parameter Description

Min

Typical

Max

Unit

Remarks

1/T1

I2S_WA synchronization signal frequency

16

kHz

<I2S_sample_rate> = 3

1/T2

I2S_CLK bit clock frequency

32

1/T1

<I2S_mode> = 14

Table 29: AC characteristics of digital audio interface (I2S) pins in Normal I2S mode (long synchronization signal), host role