MB9B360R datasheet(69/166 Pages) CYPRESS

69 / 166 page

Document Number: 002-04872 Rev.*A

Page 69 of 166

MB9B360R Series

WARNING

The recommended operating conditions are required in order to ensure the normal operation of the semiconductor device. All of the

device's electrical characteristics are warranted when the device is operated under these conditions.

Any use of semiconductor devices will be under their recommended operating condition.

Operation under any conditions other than these conditions may adversely affect reliability of device and could result in device

failure.

No warranty is made with respect to any use, operating conditions or combinations not represented on this data sheet. If you are

considering application under any conditions other than listed herein, please contact sales representatives beforehand.

Calculation method of power dissipation (Pd)

The power dissipation is shown in the following formula.

Pd = VCC × ICC + Σ (IOL × VOL) + Σ ((VCC-VOH) × (-IOH))

IOL : "L" level output current

IOH : "H" level output current

VOL : "L" level output voltage

VOH : "H" level output voltage

ICC is a current consumed in device.

It can be analyzed as follows.

ICC = ICC(INT) + ΣICC(IO)

ICC(INT) : Current consumed in internal logic and memory, etc. through regulator

ΣI

CC(IO) : Sum of current (I/O switching current) consumed in output pin

For ICC (INT), it can be anticipated by "(1) Current Rating" in "3. DC Characteristics" (This rating value does not include ICC (IO) for a

value at pin fixed).

For Icc (IO), it depends on system used by customers.

The calculation formula is shown below.

ICC(IO) = (CINT + CEXT) × VCC × fsw

CINT : Pin internal load capacitance

CEXT : External load capacitance of output pin

fSW

: Pin switching frequency

Parameter

Symbol

Conditions

Capacitance value

Pin internal load capacitance

CINT

4mA type

1.93pF

8mA type

3.45pF

12mA type

3.42pF

Calculate ICC (Max) as follows when the power dissipation can be evaluated by yourself.

1. Measure current value ICC (Typ) at normal temperature (+25°C).

2. Add maximum leak current value ICC (leak_max) at operating on a value in (1).

ICC(Max) = ICC(Typ) + ICC(leak_max)

Parameter

Symbol

Conditions

Current value

Maximum leak current at

operating

ICC(leak_max)

Tj = +125°C

45.5mA

Tj = +105°C

26.8mA

Tj = +85°C

16.2mA

MB9B360R Datasheet(PDF) 69 Page - Cypress Semiconductor

MB9B360R Datasheet(HTML) 69 Page - Cypress Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL