Push-pull mode bus signal level— eMMC

The device input and output voltages shall be within the following specified ranges for any VDD of the allowed

voltage range

For 2.7V-3.6V VCCQ range (compatible with JESD8C.01):

Table 22: Push-pull Signal Level—High-voltage eMMC

Parameter

Symbol

Min.

Max.

Unit

Conditions

Output HIGH voltage

VOH

0.75 * VCCQ

V

IOH = -100 μA @ VCCQ min

Output LOW voltage

VOL

0.125 * VCCQ

V

IOL = 100 μA @ VCCQ min

Input HIGH voltage

VIH

0.625 * VCCQ

VCCQ + 0.3

V

Input LOW voltage

VIL

VSS – 0.3

0.25 * VCCQ

V

For 1.70V – 1.95V VCCQ range (Compatible with EIA/JEDEC Standard “EIA/JESD8-7 Normal Range” as defined in the

following table):

Table 23: Push-pull Signal Level—1.70 -1.95 VCCQ Voltage Range

Parameter

Symbol

Min.

Max.

Unit

Conditions

Output HIGH voltage

VOH

VCCQ – 0.45V

V

IOH = -2mA

Output LOW voltage

VOL

0.45V

V

IOL = 2mA

Input HIGH voltage

VIH

0.65 * VCCQ

1

VCCQ + 0.3

V

Input LOW voltage

VIL

VSS – 0.3

0.35 * VDD

2

V

Note 1: 0.7 * VDD for MMC™4.3 and older revisions.

Note 2: 0.3 * VDD for MMC™4.3 and older revisions.

Bus Operating Conditions for HS200 & HS400

The bus operating conditions for HS200 & HS400 devices is the same as specified in sections 10.5.1 through

10.5.2 of JESD84-B51. The only exception is that VCCQ=3.3v is not supported.

Device Output Driver Requirements for HS200 & HS400

Refer to section 10.5.4 of the JEDEC Standard JESD84-B51.

8.4 Bus Timing

Figure 16: Timing diagram: data input/output

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