Eorex Corporation

www.eorex.com

4/8

Temperature Characteristic

Parameter

Min

Max

Unit

Storage temperature

-40

85

℃

Operating temperature

-25

85

℃

Junction temperature

-20

95

℃

Electrical Characteristics

1. Absolute Maximum Ratings

Parameter

Symbol

Min

Max

Unit

Remark

Supply voltage

Vcc

-0.5

4.6

V

Total power dissipation

0.2

W

ESD protection

-4

4

KV

Human body model

Input voltage

VImax

-0.5

Vcc+0.5

V

≦

max(Vcc)

Output voltage

VOmax

-0.5

Vcc+0.5

V

≦

max(Vcc)

High-level output current

VOHmax

-100

mA

Short cut protected

Low-level output current

IOHmax

150

mA

Short cut protected

2. Bus Signal Line Load

The total capacitance CL of each line of the MultiMediaCard

master capacitance CHOST, the bus capacitance CBUS itself and the capacitance CCARD of

each card connected to this line:

CL = CHOST + CBUS + N*CCARD

Where N is the number of connected cards. Requiring the sum of the host and bus

capacitance’s not to exceed 30pF for up to 10 cards, and 40pF up to 30 cards, the following

values must not be exceeded:

Parameter

Symbol

Min

Max

Unit

Remark

Pull-up resistance for CMD

RCMD

4.7

100

KΩ

To prevent bus floating

Pull-up resistance for DAT

RDAT

50

100

KΩ

To prevent bus floating

Bus signal line capacitance

CL

250

pF

fpp≦5MHz, 30 cards

Bus signal line capacitance

CL

100

pF

fpp≦20MHz, 10 cards

Signal card capacitance

CCARD

7

pF

Maximum signal line inductance

16

nH

fpp≦20MHz