ST25DV64K datasheet(171/220 Pages) STMICROELECTRONICS

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ST25DV04K ST25DV16K ST25DV64K

Device parameters

219

9.2

I2C DC and AC parameters

This section summarizes the operating and measurement conditions, and the DC and AC

characteristics of the device in I2C mode. The parameters in the DC and AC characteristic

tables that follow are derived from tests performed under the measurement conditions

summarized in the relevant tables. Designers should check that the operating conditions in

their circuit match the measurement conditions when relying on the quoted parameters.

Figure 74. AC test measurement I/O waveform

Table 204. I2C operating conditions

Sym

bol

Parameter

Min. Max. Unit

VCC Supply voltage

1.8

5.5

Ambient operating

temperature

Range 6

All packages

-40

°C

Range 8

UFDFPN8,

UFDFPN12

-40

105

°C

SO8N, TSSOP8

-40

125

°C

Table 205. AC test measurement conditions

Symbol

Parameter

Min.

Max.

Unit

Load capacitance

100

tr, tf

Input rise and fall times

Vhi-lo

Input levels

0.2VCC to 0.8VCC

Vref(t)

Input and output timing reference levels

0.3VCC to 0.7VCC

Table 206. Input parameters

Symbol

Parameter

Min.

Max.

Unit

CIN

Input capacitance (SDA)

CIN

Input capacitance (other pins)

tNS(1)

1. Characterized only.

Pulse width ignored (Input filter on SCL and SDA)

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