DC and AC parameters

M41TC8025

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DocID022873 Rev 4

Figure 23. Bus timing requirement sequence

Note:

When accessing this device, all communication from transmitting the START condition to

transmitting the STOP condition should be completed within 0.95 seconds.

If such communication requires 0.95 seconds or longer, the I2C bus interface is reset by the

internal bus timeout function. Refer to the detailed description in Section 2.2.8: I2C timeout

function on page 13.

Table 28. AC characteristics

Symbol

Parameter(1)

1. Valid for ambient operating temperature: TA = -40 to 85 °C or TA = -45 to 70 °C; VCC = 1.8 to 5.5 V (except

where noted).

Min

Typ

Max

Unit

fSCL

SCL clock frequency

0

400

kHz

tLOW

Clock low period

1.3

μs

tHIGH

Clock high period

600

ns

tR

SDA and SCL rise time

300

ns

tF

SDA and SCL fall time

300

ns

tHD:STA

START condition hold time

(after this period the first clock pulse is generated)

600

ns

tSU:STA

START condition setup time

(only relevant for a repeated start condition)

600

ns

tSU:DAT(2)

2. tSU:DAT = 100 ns (min) for VCC 2.2 V.

Data setup time

100

ns

tHD:DAT

Data hold time

0

μs

tSU:STO

STOP condition setup time

600

ns

tBUF

Time the bus must be free before a new

transmission can start

1.3

μs

Obsolete

Product(s)

- Obsolete

Product(s)