Compaq Battery-Lifetime, BUS SIGNALS 3.1. Addressing PCI Devices, MSB900 and MSB900L

Models: MSB900 MSB900L

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2.11. Battery-Lifetime

DIGITAL-LOGIC AG

MSB900/L Detailed Technical Manual V1.0

2.11. Battery-Lifetime

Battery specs:

 

Lowest temp.

Nominal temp.

Highest temp.

 

 

-40°C

+20°C

+85°C

Manufacturer:

pba

 

 

 

Type:

ER10280

 

 

 

Capacity versus Temp:

10uA

420mAh

400mAh

350mAh

Voltage versus Temp.

10uA

3.6V

3.6V

Ca. 3.6V

Nominal values:

3.6V / 400mAh @ 0.5mA / -55°C...~+85°C

 

 

Information taken from the datasheet of ER10280

PRODUCT:

Temperature

Battery voltage

VCC (+5)

VCC (+5V)

 

°C

V

switched ON

switched off

 

 

 

µA

µA

Battery current:

+25°C

3.6

< 1

< 3

 

 

 

 

 

Battery-Lifetime:

+25°C

 

>3.5 years

>3.5 year

2.11.1.External battery assembling (for the MSB900L):

On the MSB900L board, an external battery can be connected to J3. Attach the battery ground to pin 2. If the customer wants to connect an external battery, then some precautions have to be taken:

The battery is prohibited from charging. Do not use a rechargeable battery!

The RTC device defines a voltage level of 3.0-3.6V, so use an external battery within this range (inclusive of the diode which is pre-assembled onboard).

3.BUS SIGNALS

3.1.Addressing PCI Devices

3.1.1.MSB900 and MSB900L

DEVICE

IDSEL

PIRQ

#REG

#GNT

Remarks

SLOT 1

AD20

A / B / C / D

3

3

For additional cards (peripheral boards)

 

 

 

 

 

 

Onboard used:

 

 

 

 

 

LAN A

AD28

C

1

1

Onboard device

LAN B

AD29

A

4

4

Onboard device

Mini-PCI

AD27

A / B

5

5

Optional device

 

 

 

 

 

 

CPU

AD11

A

2

2

Onboard device

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Compaq Battery-Lifetime, BUS SIGNALS 3.1. Addressing PCI Devices, External battery assembling for the MSB900L