MC1GH128NACA-2SA00 데이터 시트보기 (PDF) - Samsung

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MC1GH128NACA-2SA00

SAMSUNG MultiMediaCard

Samsung 

Revision 0.3

MultiMediaCardTM

5.4.4 Bus Signal Levels

As the bus can be supplied with a variable supply voltage, all signal levels are related to the supply voltage.

V

input

high level

input

low level

VDD

output

VOH

high level

VIH

VIL

undefined

VOL

VSS

t

Figure 5-4 : Bus Signal Levels

output

low level

5.4.5 Open-Drain Mode Bus Signal Level

Parameter

Symbol

Min

Max.

Output HIGH voltage

Output LOW voltage

VOH

VDD-0.2

VOL

0.3

Table 5-6 : Open Drain Mode Bus Signal Levels

The input levels are identical with the push-pull mode bus signal levels.

Unit

V

V

Conditions

IOH = -100 µA

IOL = 2 mA

5.4.6 Push-Pull Mode Bus Signal Level - High Voltage MultiMediaCard

To meet the requirements of the JEDEC specification JESD8-1A, the card input and output voltages shall be within the fol-

lowing specified ranges for any VDD of the allowed voltage range:

Parameter

Output HIGH voltage

Output LOW voltage

Input HIGH voltage

Input LOW voltage

Symbol

VOH

VOL

VIH

VIL

Min

0.75*VDD

0.625*VDD

VSS-0.3

Max.

0.125*VDD

VDD + 0.3

0.25*VDD

Unit

V

V

V

V

Conditions

IOH=-100 µA @VDD min

IOL=100 µA @VDD min

Table 5-7 : Push-Pull Mode Bus Signal Level - High Voltage MulultiMediaCard

5.4.7 Push-Pull Mode Bus Signal Level - Dual Voltage MultiMediaCard

The definition of the I/O signal levels for the Dual voltage MultiMediaCard changes as a function of VDD

2.7V - 3.6V: Identical to the High Voltage MultiMediaCard (refer to Chapter above)

1.95 - 2.7V: Undefined. The card is not operating at this voltage range

1.65 - 1.95V: Compatible with EIA/JEDEC Standard “EIA/JESD8-7 Wide Range” as defined in the following table

20

Sep.22.2005

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