DS28DG02: 2kb SPI EEPROM with PIO, RTC, Reset, Battery Monitor, and Watchdog

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ABSOLUTE MAXIMUM RATINGS

Voltage Range on Any Pin Relative to Ground

-0.5V, +6V

Maximum Current SO, ALMZ, RSTZ, WDOZ Pins

±20mA

Maximum Current Each PIO Pin

±50mA

270mA

Operating Temperature Range

-40°C to +85°C

Junction Temperature

+150°C

Storage Temperature Range

-55°C to +125°C

Soldering Temperature

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.

ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Battery monitor off

2.2

5.25

Supply Voltage

Battery monitor enabled

2.7

5.25

V

Battery Voltage

(Note 1)

1.5

3.0

V

RTC oscillator off

2

RTC oscillator on

0.4

10

Note 1)

RTC oscillator on, +25°C

4.7

µA

Standby Current (Note 2)

SPI idle, ALMZ, WDOZ,

RTC oscillator on, all

PIOs grounded

60

100

µA

Operating Current

Reading EEPROM at 2

Mbps, ALMZ, WDOZ,

RTC oscillator on, all

PIOs grounded

550

800

µA

Programming Current

600

1000

µA

(Note 3)

2.97

3.05

3.14

V

+25°C

-1.5

+1.5

Tolerance

-40°C to +85°C

-2.5

+2.5

0.4

0.5

0.6

Power-Up Wait Time

60

µs

EEPROM

Programming Time

10

ms

Endurance

At +25°C (Notes 4, 5)

200k

—

Data Retention

At +85°C (Notes 5, 6)

40

years

REAL-TIME CLOCK

Frequency Deviation

(Notes 5, 7)

-46

+46

PPM

PIO PINS (See Figures 21, 22, 23)

6

9.5

12.5

22.0

LOW-Level Output Current at

19

30

mA

6.5

11.0

HIGH-Level Output Current

(Note 8)

12.5

18.0

mA