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DS28DG02 Datasheet(PDF) 2 Page - Dallas Semiconductor

No. de Pieza. DS28DG02
Descripción  2kb SPI EEPROM with PIO, RTC, Reset, Battery Monitor, and Watchdog
Descarga  33 Pages
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Fabricante  DALLAS [Dallas Semiconductor]
Página de inicio  http://www.dalsemi.com
Logo DALLAS - Dallas Semiconductor

DS28DG02 Datasheet(HTML) 2 Page - Dallas Semiconductor

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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 VCC 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
(TA = -40°C to +85°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Battery monitor off
2.2
5.25
Supply Voltage
VCC
Battery monitor enabled
2.7
5.25
V
Battery Voltage
VBAT
(Note 1)
1.5
3.0
VCC
V
RTC oscillator off
2
RTC oscillator on
0.4
10
Battery Current (VBAT = 3.0V,
Note 1)
IBAT
RTC oscillator on, +25°C
4.7
µA
Standby Current (Note 2)
ICCS
SPI idle, ALMZ, WDOZ,
RTSZ high, VCC = 5.25V,
RTC oscillator on, all
PIOs grounded
60
100
µA
Operating Current
ICCA
Reading EEPROM at 2
Mbps, ALMZ, WDOZ,
RTSZ high, VCC = 5.25V,
RTC oscillator on, all
PIOs grounded
550
800
µA
Programming Current
IPROG
VCC = 5.25V
600
1000
µA
VCC Monitor Trip Point
VTRIP
(Note 3)
2.97
3.05
3.14
V
+25°C
-1.5
+1.5
VCC Monitor Trip-Point
Tolerance
VTRIPTOL
-40°C to +85°C
-2.5
+2.5
%VTRIP
VCC Monitor Hysteresis
VHYST
0.4
0.5
0.6
%VTRIP
Power-Up Wait Time
tPOIP
60
µs
EEPROM
Programming Time
tPROG
10
ms
Endurance
NCYCLE
At +25°C (Notes 4, 5)
200k
Data Retention
tRET
At +85°C (Notes 5, 6)
40
years
REAL-TIME CLOCK
Frequency Deviation
ΔF
(Notes 5, 7)
-46
+46
PPM
PIO PINS (See Figures 21, 22, 23)
VCC = 2.2V
6
9.5
VCC = 3.3V
12.5
22.0
LOW-Level Output Current at
VOL = 0.5V (Note 8)
IOL
VCC = 5.25V
19
30
mA
VOH = 2.4V, VCC = 3.3V
6.5
11.0
HIGH-Level Output Current
(Note 8)
IOH
VOH = 4.5V, VCC = 5.25V
12.5
18.0
mA


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