PCIMX512CJM6C datasheet(34/184 Pages) FREESCALE

34 / 184 page

i.MX51 Applications Processors for Consumer and Industrial Products, Rev. 1

Freescale Semiconductor

Preliminary—Subject to Change Without Notice

Electrical Characteristics

The electrical characteristics for I2C I/O are listed in the tables from the Table 26 to the Table 29

on page 35. Characteristics are guaranteed using operating ranges per Table 8, unless otherwise noted.

Table 26. I2C Standard- and Fast-Mode Electrical Parameters

for Low/Medium Drive Strength and OVDD = 2.7 V–3.3 V

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Output fall time,

(low driver strength)

from VIHmin to VILmax with CL from 10 pF to 400 pF

—

Output fall time,

(medium driver strength)

from VIHmin to VILmax with CL from 10 pF to 400 pF

—

Table 27. I2C Standard- and Fast-Mode Electrical Parameters

for Low/Medium Drive Strength and OVDD = 1.65 V–1.95 V

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Output fall time,

(low driver strength)

tof

from VIHmin to VILmax with CL from 10 pF to 400 pF

—

Output fall time,

(medium driver strength)

tof

from VIHmin to VILmax with CL from 10 pF to 400 pF

—

Table 28. I2C High-Speed Mode Electrical Parameters

for Low/Medium Drive Strength and OVDD = 2.7 V – 3.3 V

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Output rise time (current-source enabled) and

fall time at SCLH

(low driver strength)

trCL, tfCL

with a 3mA external

pull-up current source

and CL = 100 pF

—

18/21

Output rise time (current-source enabled) and

fall time at SCLH

(medium driver strength)

trCL, tfCL

with a 3mA external

pull-up current source

and CL = 100 pF

——

9/9

Output fall time at SDAH

(low driver strength)

tfDA

with CL from 10 pF to

100 pF

—

Output fall time at SDAH

(medium driver strength)

tfDA

with CL from 10 pF to

100 pF

——

Output fall time at SDAH

(low driver strength)

tfDA

CL = 400 pF

—

Output fall time at SDAH

(medium driver strength)

tfDA

CL = 400 pF

—

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