IMX93CEC datasheet(54/123 Pages) NXP

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Table 57. HS200 interface timing specification (Nominal and Overdrive mode)[1],[2]...continued

Parameter

Symbols

Min

Max

Unit

uSDHC Output/Card Inputs SD_CMD, SDx_DATAx in HS200 (Reference to CLK)

SD5

uSDHC Output Delay

tOD

-1.6

uSDHC Input/Card Outputs SD_CMD, SDx_DATAx in HS200 (Reference to CLK)[3]

SD8

uSDHC Input Data Window

tODW

0.475 x

tCLK

—

[1] Input timing assumes an input signal slew rate of 1 ns (20%/80%).

[2] Output timing valid for maximum external load CL = 15 pF, which is assumed to be a 8 pF load at the end of a 50 ohm, unterminated, 2-inch microstrip trace

on standard FR4 (3.3 pF/inch). For best signal integrity, the series resistance of the transmission line should be matched closely to the RDSON of the I/O pad

output driver.

[3] HS200 is for 8 bits while SDR104 is for 4 bits.

Table 58. HS200 interface timing specification (Low drive mode)[1],[2]

Parameter

Symbols

Min

Max

Unit

Card Input Clock

SD1

Clock Frequency Period

tCLK

7.5

—

SD2

Clock Low Time

tCL

3.3

—

SD3

Clock High Time

tCH

3.3

—

uSDHC Output/Card Inputs SD_CMD, SDx_DATAx in HS200 (Reference to CLK)

SD5

uSDHC Output Delay

tOD

-1.6

uSDHC Input/Card Outputs SD_CMD, SDx_DATAx in HS200 (Reference to CLK)[3]

SD8

uSDHC Input Data Window

tODW

0.475 x

tCLK

—

[1] Input timing assumes an input signal slew rate of 1 ns (20%/80%).

[2] Output timing valid for maximum external load CL = 15 pF, which is assumed to be a 8 pF load at the end of a 50 ohm, unterminated, 2-inch microstrip trace

on standard FR4 (3.3 pF/inch). For best signal integrity, the series resistance of the transmission line should be matched closely to the RDSON of the I/O pad

output driver.

[3] HS200 is for 8 bits while SDR104 is for 4 bits.

4.12.1.5 SDR50/SDR104 AC timing

Figure 26 depicts the timing of SDR50/SDR104, Table 59 and Table 60 list the SDR50/SDR104 timing characteristics.

NXP Semiconductors

IMX93CEC

i.MX 93 Applications Processors Data Sheet for Commercial Products

IMX93CEC

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Product data sheet

Rev. 7 — 12 February 2026

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