AM1707BZKB4 datasheet(86/199 Pages) TI

86 / 199 page

AM1707

SPRS637A – FEBRUARY 2010 – REVISED APRIL 2010

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6.14.3 MMC/SD Electrical Data/Timing

Table 6-32. Timing Requirements for MMC/SD Module

(see Figure 6-27 and Figure 6-29)

No.

PARAMETER

MIN

MAX

UNIT

tsu(CMDV-CLKH)

Setup time, MMCSD_CMD valid before MMCSD_CLK high

3.2

th(CLKH-CMDV)

Hold time, MMCSD_CMD valid after MMCSD_CLK high

1.5

tsu(DATV-CLKH)

Setup time, MMCSD_DATx valid before MMCSD_CLK high

3.2

th(CLKH-DATV)

Hold time, MMCSD_DATx valid after MMCSD_CLK high

1.5

Table 6-33. Switching Characteristics Over Recommended Operating Conditions for MMC/SD Module

(see Figure 6-26 through Figure 6-29)

No.

PARAMETER

MIN

MAX

UNIT

f(CLK)

Operating frequency, MMCSD_CLK

MHz

f(CLK_ID)

Identification mode frequency, MMCSD_CLK

400

KHz

tW(CLKL)

Pulse width, MMCSD_CLK low

6.5

tW(CLKH)

Pulse width, MMCSD_CLK high

6.5

tr(CLK)

Rise time, MMCSD_CLK

tf(CLK)

Fall time, MMCSD_CLK

td(CLKL-CMD)

Delay time, MMCSD_CLK low to MMCSD_CMD transition

-4.5

2.5

td(CLKL-DAT)

Delay time, MMCSD_CLK low to MMCSD_DATx transition

-4.5

Peripheral Information and Electrical Specifications

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