IMX35 datasheet(29/148 Pages) FREESCALE

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i.MX35 Applications Processors for Industrial and Consumer Products, Rev. 6

Freescale Semiconductor

4.9

Module-Level AC Electrical Specifications

This section contains the AC electrical information (including timing specifications) for the modules of

the i.MX35. The modules are listed in alphabetical order.

4.9.1

AUDMUX Electrical Specifications

The AUDMUX provides a programmable interconnect logic for voice, audio and data routing between

internal serial interfaces (SSI) and external serial interfaces (audio and voice codecs). The AC timing of

AUDMUX external pins is hence governed by the SSI module. See the electrical specification for SSI.

4.9.2

CSPI AC Electrical Specifications

The i.MX35 provides two CSPI modules. CSPI ports are multiplexed in the i.MX35 with other pins. See

the “External Signals and Multiplexing” chapter of the reference manual for more details.

Output pin di/dt (max. drive)2

didt

25 pF

50 pF

202

213

435

456

mA/ns

Input pin transition times3

trfi

1.0 pF

0.07/0.08

0.11/0.12

0.16/0.20

Input pin propagation delay, 50%–50%

tpi

1.0 pF

0.35/1.17

0.63/1.53

1.16/2.04

Input pin propagation delay, 40%–60%

tpi

1.0 pF

1.18/1.99

1.45/2.35

1.97/2.85

1 Min. condition for tps: wcs model, 1.1 V, IO 1.65 V, and 105 °C. tps is measured between VIL to VIH for rising edge and between

VIH to VIL for falling edge.

2 Max. condition for tdit: bcs model, 1.3 V, IO 1.95 V, and –40 °C.

3 Max. condition for tpi and trfi: wcs model, 1.1 V, IO 1.65 V and 105 °C. Min. condition for tpi and trfi: bcs model, 1.3 V, IO 1.95V

and –40 °C. Input transition time from pad is 5 ns (20%–80%).

Table 24. AC Electrical Characteristics of DDR Type IO Pins in SDRAM Mode Max Drive (1.8 V) (continued)

Parameter

Symbol

Test Condition

Min.

Rise/Fall

Typ.

Max.

Rise/Fall

Units

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