DS138833 データシートの表示（PDF） - Maxim Integrated
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DS138833 Datasheet PDF : 19 Pages
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I2C RTC/Supervisor with Trickle Charger
and 512 Bytes EEPROM
DC ELECTRICAL CHARACTERISTICS (continued)
(VCC = VCC(MIN) to VCC(MAX), TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
RST Logic 0 Output
VCC Active Current, EEPROM
Read, I2C Read/Write Access
VCC Active Current, EEPROM
Write Cycle
VCC Standby Current
SYMBOL
IOLSIR
ICCER
ICCEW
ICCS
CONDITIONS
VCC > 2V; VOL = 0.4V
1.8V < VCC < 2V; VOL = 0.2 x VCC
1.3V < VCC < 1.8V; VOL = 0.2 x VCC
DS1388Z-5
(Note 8)
DS1388Z-33
DS1388Z-3
DS1388Z-5
(Note 8)
DS1388Z-33
DS1388Z-3
DS1388Z-5
(Note 9)
DS1388Z-33
DS1388Z-3
VBACKUP Leakage Current
(VBACKUP = 3.7V,
VCC = VCC(MAX))
IBACKUPLKG
EEPROM Write/Erase Cycles
TA = +25°C (guaranteed by design)
tWR
TA = -40°C to +85°C (guaranteed by
design)
MIN TYP MAX UNITS
3.0
mA
3.0
250
µA
600
250
µA
225
1.0
0.70
mA
0.65
270
100
150
µA
140
15
100
nA
200k
50k
Cycles
DC ELECTRICAL CHARACTERISTICS
(VCC = 0V, VBACKUP = 3.7V, TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
VBACKUP Current, OSC On
(EOSC = 0), SDA = SCL = 0V
IBACKUP (Note 10)
VBACKUP Current, OSC Off
(EOSC = 1), SDA = SCL = 0V
(Data Retention)
IBACKUPDR (Note 10)
MIN TYP MAX UNITS
410
550
nA
10
100
nA
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