MSM58321 查看數據表（PDF） - Oki Electric Industry

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MSM58321

REAL TIME CLOCK/CALENDAR

Oki Electric Industry 

¡ Semiconductor

ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings

Rating

Power voltage

Input voltage

Output voltage

Storage temperature

Symbol

VDD

VI

VO

Tstg

MSM58321

Condition

Value

Unit

Ta = 25°C

–0.3 to 6.5

V

Ta = 25°C –0.3 to VDD+0.3

V

Ta = 25°C –0.3 to VDD+0.3

V

–

–55 to +150

°C

Operating Conditions

Rating

Power voltage

Date hold voltage

Crystal frequency

Operating temperature

Symbol

VDD

VDH

ƒ(XT)

TOP

Condition

–

–

–

–

Value

Unit

4.5 to 6

V

2.2 to 6

V

32.768

kHz

–30 to +85

°C

Note:

The data hold voltage guarantees the clock operations, though it does not guarantee operations outside

the IC and data input/output.

DC Characteristics

(VDD = 5V ±5%, Ta = –30 ~ +85°C)

Rating

H input voltage

L input voltage

L output voltage

L output current

H input current

L input current

Input capacity

Current consumption

Symbol

VIH1

VIH2

VIL

VOL

IOL

IIH1

IIH2

IIL

CI

IDD

Condition

Min. Typ.

– Note 1

– Note 2

–

IO = 1.6 mA

VO = 0.4 V

VI = VDD Note3

VI = VDD Note4

VI = 0V

ƒ = 1 MHz

ƒ = 32.768 kHz

VDD = 5V/VDD = 3V

3.6

VDD–0.5

–

–

1.6

10

–

–

–

–

–

–

–

–

–

30

–

–

5

100/15

Max.

–

–

0.8

0.4

–

80

1

–1

–

500/30

Unit

V

V

V

mA

µA

µA

pF

µA

Note:

1. CS2, WRITE, READ, ADDRESS WRITE, STOP, TEST, D0 ~ D3

2. CS1

3. CS1, CS2, WRITE, READ, ADDRESS WRITE, STOP, TEST

4. D0 ~ D3

9

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