MF365A-LYCATXX 데이터 시트보기 (PDF) - Mitsumi

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MF365A-LYCATXX

8/16-bit Data Bus Static RAM Card

Mitsumi 

MITSUBISHI MEMORY CARD

STATIC RAM CARDS

18. ELECTRICAL CHARACTERISTICS

BATTERY BACKUP (Ta=0~55°C, unless otherwise noted)

Symbol

Parameter

Test conditions

VBATT Back-up enable battery voltage

Vi(CE) Card enable voltage

Battery back-up supply current

Icc

(Bup)

Battery back-up supply current

All pins open

3.5V≤VCC≤5.25V

0V≤VCC<3.5V

64KB

128KB

All pins open,

256KB

VBATT=3V,

512KB

Ta=25°C

1MB

2MB

4MB

64KB

128KB

All pins open,

256KB

VBATT=3V

512KB

1MB

2MB

4MB

Min.

2.6

3.5

Vcc-0.1

Limits

Unit

Typ. Max.

V

V

Vcc Vcc+0.1

3

3

3

5

µA

3

5

9

30

30

30

50

µA

30

50

90

19. TIMING REQUIREMENTS (Ta=0~55°C, unless otherwise noted)

Symbol

Parameter

Tpr

tpf

tsu(Vcc)

trec(Vcc)

Power supply rise time

Power supply fall time

Setup time at power on

Recovery time at power off

Limits

Min. Typ. Max.

0.1

300 ms

3

300 ms

20

ms

1000

ns

CARD INSERTION/REMOVAL TIMING DIAGRAM

VCC

CE1#,

CE2#

VCC MIN

trec(VCC)

tpf

90%

VIH

10%

tpr

90%

VIH

10%

VCC MIN

tsu(VCC)

VCC

CE1#,

CE2#

MITSUBISHI

ELECTRIC

11/14

Apr. 1999 Rev. 1.2

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