SPC58EN80C3RMSBY datasheet(27/158 Pages) STMICROELECTRONICS

27 / 158 page

DS11734 Rev 6

27/158

SPC584Nx, SPC58ENx, SPC58NNx

Electrical characteristics

3.8

I/O pad specification

The following table describes the different pad type configurations.

Note:

Each I/O pin on the device supports specific drive configurations. See the signal description

table in the device reference manual for the available drive configurations for each I/O pin.

PMC_DIG_VSIO register has to be configured to select the voltage level (3.3 V or 5.0 V) for

each IO segment.

3.8.1

I/O input DC characteristics

The following table provides input DC electrical characteristics, as described in Figure 3.

Figure 3. I/O input electrical characteristics

In the following table, in case of current injection pulses on one pad under the conditions

and limits described in IINJ2 parameter in Section 3.3: Operating conditions, other pads of

Table 10. I/O pad specification descriptions

Pad type

Description

Weak configuration

Provides a good compromise between transition time and low electromagnetic emission.

Medium configuration

Provides transition fast enough for the serial communication channels with controlled

current to reduce electromagnetic emission.

Strong configuration

Provides fast transition speed; used for fast interface.

Very strong

configuration

Provides maximum speed and controlled symmetric behavior for rise and fall transition.

Used for fast interface including Ethernet and FlexRay interfaces requiring fine control of

rising/falling edge jitter.

Differential

configuration

A few pads provide differential capability providing very fast interface together with good

EMC performances.

Input only pads

These low input leakage pads are associated with the ADC channels.

VIL

VIN

VIH

VINTERNAL

VDD

VHYS

(SIUL register)

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