DS1388 Maxim, DS1388 Datasheet - Page 3

• Manufacturer Part Number: DS1388
• Description: The DS1388 I²C real-time clock (RTC), supervisor, and EEPROM is a multifunction device that provides a clock/calendar, programmable watchdog timer, power-supply monitor with reset, and 512 bytes of EEPROM
• Manufacturer: Maxim

DC ELECTRICAL CHARACTERISTICS (continued)
(V
DC ELECTRICAL CHARACTERISTICS
(V
RST Logic 0 Output
V
Read, I
V
Write Cycle
V
V
(V
V
EEPROM Write/Erase Cycles
V
(EOSC = 0), SDA = SCL = 0V
V
(EOSC = 1), SDA = SCL = 0V
(Data Retention)
CC
CC
CC
BACKUP
CC
BACKUP
BACKUP
CC
CC
BACKUP
Standby Current
Active Current, EEPROM
Active Current, EEPROM
= V
= V
= 0V, V
2
CC(MAX)
CC(MIN)
C Read/Write Access
Current, OSC On
Current, OSC Off
Leakage Current
PARAMETER
PARAMETER
= 3.7V,
BACKUP
)
to V
I
= 3.7V, T
CC(MAX)
2
C RTC/Supervisor with Trickle Charger
, T
A
A
= +25°C, unless otherwise noted.) (Note 2)
= -40°C to +85°C, unless otherwise noted.) (Note 2)
I
BACKUPLKG
I
SYMBOL
BACKUPDR
SYMBOL
I
BACKUP
I
I
I
OLSIR
CCEW
CCER
I
t
CCS
WR
_____________________________________________________________________
V
1.8V < V
1.3V < V
(Note 9)
(Note 9)
(Note 10)
T
T
design)
(Note 11)
(Note 11)
A
A
CC
= +25°C (guaranteed by design)
= -40°C to +85°C (guaranteed by
> 2V; V
CC
CC
OL
< 2V; V
< 1.8V; V
CONDITIONS
CONDITIONS
= 0.4V
and 512 Bytes EEPROM
OL
OL
= 0.2 x V
DS1388Z-5
DS1388Z-33
DS1388Z-3
DS1388Z-5
DS1388Z-33
DS1388Z-3
DS1388Z-5
DS1388Z-33
DS1388Z-3
= 0.2 x V
CC
CC
200k
MIN
50k
MIN
TYP
TYP
100
410
15
10
MAX
MAX
0.70
0.65
250
600
250
225
270
150
140
100
550
100
3.0
3.0
1.0
Cycles
UNITS
UNITS
mA
mA
μA
μA
μA
nA
nA
nA
3