DS1302SN+ 参数 Datasheet PDF下载

DS1302 Trickle-Charge Timekeeping Chip

ABSOLUTE MAXIMUM RATINGS

Voltage Range on Any Pin Relative to Ground……………………………………………………………….-0.5Vto +7.0V

Operating Temperature Range, Commercial………………………………………………………………….0°C to +70°C

Operating Temperature Range, Industrial (IND)……………………………………………………………-40°C to +85°C

Storage Temperature Range……………………………………………………………………………..….-55°C to +125°C

Soldering Temperature (leads, 10 seconds)………………………………………………………………..………….260°C

Soldering Temperature (surface mount)………………………………………………..…….See IPC/JEDEC J-STD-020

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only,

and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is

not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability.

RECOMMENDED DC OPERATING CONDITIONS

(T

A

= 0°C to +70°C or T

A

= -40°C to +85°C.) (Note 1)

PARAMETER

Supply Voltage V

CC1

, V

CC2

Logic 1 Input

Logic 0 Input

SYMBOL

V

CC1,

V

CC2

V

IH

V

IL

V

CC

= 2.0V

V

CC

= 5V

CONDITIONS

(Notes 2, 10)

(Note 2)

(Note 2)

MIN

2.0

2.0

-0.3

-0.3

TYP

3.3

MAX

5.5

V

CC

+

0.3

+0.3

+0.8

UNITS

V

V

V

DC ELECTRICAL CHARACTERISTICS

(T

A

= 0°C to +70°C or T

A

= -40°C to +85°C.) (Note 1)

PARAMETER

Input Leakage

I/O Leakage

Logic 1 Output (I

OH

= -0.4mA)

Logic 1 Output (I

OH

= -1.0mA)

Logic 0 Output (I

OL

= 1.5mA)

Logic 0 Output (I

OL

= 4.0mA)

Active Supply Current

(Oscillator Enabled)

Timekeeping Current

(Oscillator Enabled)

Standby Current (Oscillator

Disabled)

Active Supply Current

(Oscillator Enabled)

Timekeeping Current

(Oscillator Enabled)

Standby Current (Oscillator

Disabled)

Trickle-Charge Resistors

Trickle-Charge Diode Voltage

Drop

I

LI

I

LO

V

OH

V

OL

I

CC1A

I

CC1T

I

CC1S

I

CC2A

I

CC2T

I

CC2S

R1

R2

R3

V

TD

10 of 13

V

CC

= 2.0V

V

CC

= 5V

V

CC

= 2.0V

V

CC

= 5V

V

CC1

= 2.0V

V

CC1

= 5V

V

CC1

= 2.0V

V

CC1

= 5V

V

CC1

= 2.0V

V

CC1

= 5V

IND

V

CC2

= 2.0V

V

CC2

= 5V

V

CC2

= 2.0V

V

CC2

= 5V

V

CC2

= 2.0V

V

CC2

= 5V

2

4

8

0.7

SYMBOL

CONDITIONS

(Notes 5, 13)

(Notes 5, 13)

(Note 2)

(Note 2)

CH = 0

(Notes 4, 11)

CH = 0

(Notes 3, 11,13)

CH = 1

(Notes 9, 11, 13)

CH = 0

(Notes 4, 12)

CH = 0

(Notes 3, 12)

CH = 1

(Notes 9, 12)

0.2

0.45

1

1

5

1.6

2.4

0.4

0.4

0.4

1.2

0.3

1

100

100

200

0.425

1.28

25.3

81

25

80

kΩ

V

MIN

TYP

85

85

MAX

500

500

UNITS

μA

μA

V

V

mA

μA

nA

mA

μA

μA