AN2556 datasheet(30/35 Pages) STMICROELECTRONICS

30 / 35 page

Electrical characteristics

AN2556

30/35

Electrical characteristics

Note:

In the tables where the device provides signals with their respective timing characteristics,

the symbol CC (Controller Characteristics) is included in the Symbol column.

In the tables where the external system must provide signals with their respective timing

characteristics to the device, the symbol SR (System Requirement) is included in the

Symbol column.

5.1

DC characteristics

5.1.1

Absolute maximum ratings

They are the same.

5.1.2

Overview of the DC characteristics

The pads of ST10F273Z4 have been redesigned according to the new technology and

therefore the characteristics are different. The user should verify the DC characteristics.

Table 19 below lists the parameters that might have the biggest impact.

Table 19.

DC characteristics

Symbol

Parameter

ST10F269Zx limit values

ST10F273Z4 limit values

Unit

Min

Max

Min

Max

VILSR

Input low voltage

(all other inputs)

-0.5

0.2 VDD - 0.1

-0.3

0.8

VILSSR

-0.5

2.0, special

threshold

-0.3

0.3 VDD,

special

threshold

VIL1SR

Input low voltage

(RSTIN, EA, NMI,

and RPD)

N.A.

-0.3

0.3 VDD

VIL2SR

Input low voltage

(XTAL1 and XTAL3)

-0.3

0.3 VDD

VIHSR

Input high voltage

(all except RSTIN,

EA, NMI, RPD,

XTAL1 and XTAL3)

0.2 VDD + 0.9

VDD + 0.5

2.0

VDD + 0.3

VIHSSR

0.8 VDD - 0.2

VDD + 0.5,

special

threshold

0.7 VDD

VDD + 0.3,

special

threshold

HYS

Input hysteresis

400, default

700

400, special

threshold

700, special

threshold

1400

VHYS1CC

Input hysteresis

RSTIN, EA, NMI

750

1400

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