PCIMX515CJM6C datasheet(25/184 Pages) FREESCALE

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Electrical Characteristics

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

Freescale Semiconductor

Preliminary—Subject to Change Without Notice

3.3.5

I2C I/O DC Parameters

NOTE: See the errata for HS-I2C in i.MX51 Chip Errata document. The two standard I2C modules have

no errata

The DC Electrical Characteristics listed below are guaranteed using operating ranges per Table 8, unless

otherwise noted.

Input Hysteresis

VHYS

low voltage mode

high voltage mode

0.38

0.95

—0.43

1.33

Schmitt trigger VT+2,4

VT+

—

0.5OVDD

—

Schmitt trigger VT–2,4

VT–

—

0.5

× OVDD

Input current (no pull-up/down)

IIN

VI = 0

VI = OVDD

——

TBD

μA

Input current (22 k

Ω Pull-up)

IIN

VI = 0

VI = OVDD

—

202

TBD

μA

Input current (47 k

Ω Pull-up)

IIN

VI = 0

VI = OVDD

——

TBD

μA

Input current (100 k

Ω Pull-up)

IIN

VI = 0

VI = OVDD

——

TBD

μA

Input current (360 k

Ω Pull-down)

IIN

VI = 0

VI = OVDD

——

TBD

5.7

μA

Keeper Circuit Resistance

—

1 This table applies with VCC down to 0.9 V. UHVIO are functional down to 0.85 V with degraded performance.

To maintain a valid level, the transitioning edge of the input must sustain a constant slew rate (monotonic) from the current DC

level through to the target DC level, VIL or VIH. Monotonic input transition time is from 0.1 ns to 1 s.

3 Overshoot and undershoot conditions (transitions above OVDD and below OVSS) on switching pads must be held below 0.6 V,

and the duration of the overshoot/undershoot must not exceed 10% of the system clock cycle. Overshoot/undershoot must be

controlled through printed circuit board layout, transmission line impedance matching, signal line termination, or other methods.

Non-compliance to this specification may affect device reliability or cause permanent damage to the device.

4 Hysteresis of 250 mV is guaranteed over all operating conditions when hysteresis is enabled.

Table 17. I2C Standard/Fast/High-Speed Mode Electrical Parameters for Low/Medium Drive Strength

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Low-level output voltage

Vol

Iol = 3mA

—

0.4

High-Level DC input voltage 1

VIH

—

0.7

× OVDD

—

OVDD

Low-Level DC input voltage1

VIL

—

0.3

× OVDD

Input Hysteresis

VHYS

—

0.25

—

Schmitt trigger VT+1,2

VT+

—

0.5

× OVDD

—

Table 16. UHVIO DC Electrical Characteristics1 (continued)

DC Electrical Characteristics

Symbol

Test Conditions

Min

Typ

Max

Unit

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