Rainbow-electronics DS28DG02 Manual de usuario descargar pdf (Pagina 2)

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

2 of 33

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

Maximum GND and V

Current 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

= -40°C to +85°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Battery monitor off 2.2 5.25

Supply Voltage V

Battery monitor enabled 2.7 5.25

Battery Voltage V

BAT

(Note 1) 1.5 3.0 V

RTC oscillator off 2

RTC oscillator on 0.4 10

Battery Current (V

BAT

= 3.0V,

Note 1)

BAT

RTC oscillator on, +25°C 4.7

µA

Standby Current (Note 2) I

CCS

SPI idle, ALMZ, WDOZ,

RTSZ high, V

= 5.25V,

RTC oscillator on, all

PIOs grounded

60 100 µA

Operating Current I

CCA

Reading EEPROM at 2

Mbps, ALMZ, WDOZ,

RTSZ high, V

= 5.25V,

RTC oscillator on, all

PIOs grounded

550 800 µA

Programming Current I

PROG

= 5.25V 600 1000 µA

Monitor Trip Point V

TRIP

(Note 3) 2.97 3.05 3.14 V

+25°C

-1.5 +1.5

Monitor Trip-Point

Tolerance

TRIPTOL

-40°C to +85°C -2.5 +2.5

TRIP

Monitor Hysteresis V

HYST

0.4 0.5 0.6 %V

TRIP

Power-Up Wait Time t

POIP

60 µs

EEPROM

Programming Time t

PROG

10 ms

Endurance N

CYCLE

At +25°C (Notes 4, 5) 200k —

Data Retention t

RET

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)

= 2.2V 6 9.5

= 3.3V 12.5 22.0

LOW-Level Output Current at

= 0.5V (Note 8)

= 5.25V 19 30

= 2.4V, V

= 3.3V 6.5 11.0 HIGH-Level Output Current

(Note 8)

= 4.5V, V

= 5.25V 12.5 18.0

1 2 3 4 5 6 7 ... 32 33

Comentarios a estos manuales

Sin comentarios

Rainbow-electronics DS28DG02 Manual de usuario Pagina 2

Comentarios a estos manuales

Relacionado con productos y manuales para Almacenamiento Rainbow-electronics DS28DG02