DS1340_06 Datasheet, PDF (3/14 Pages) Maxim Integrated Products – I2C RTC with Trickle Charger

I²C RTC with Trickle Charger
RECOMMENDED DC OPERATING CONDITIONS
(V_CC = V_{CC MIN} to V_{CC MAX}, T_A = -40°C to +85°C, unless otherwise noted. Typical values are at V_CC = 3.3V, T_A = +25°C, unless
otherwise noted.) (Note 1)
PARAMETER
Supply Voltage (Note 8)
Input Logic 1 (SDA, SCL)
Input Logic 0 (SDA, SCL)
Supply Voltage, Pullup
(FT/OUT, SDA, SCL), V_CC = 0V
Backup Supply Voltage (Note 8)
Trickle-Charge Current-Limiting
Resistors
Power-Fail Voltage (Note 8)
Input Leakage (SCL, CLK)
I/O Leakage (SDA, FT/OUT)
SDA Logic 0 Output
FT/OUT Logic 0 Output
Active Supply Current (Note 13)
Standby Current (Note 14)
V_BACKUP Leakage Current
SYMBOL
V_CC
V_IH
V_IL
DS1340-18
DS1340-3
DS1340-33
(Note 8)
(Note 8)
CONDITIONS
V_PU
(Note 8)
DS1340-18
V_BACKUP DS1340-3
DS1340-33
R1
(Notes 9, 10)
R2
(Note 11)
R3
(Note 12)
DS1340-18
V_PF
DS1340-3
DS1340-33
I_LI
I_LO
I_OLSDA
V_CC > 2V; V_OL = 0.4V
1.7V < V_CC < 2V; V_OL = 0.2 x V_CC
V_CC > 2V; V_OL = 0.4V
I_OLSQW
1.7V < V_CC < 2V; V_OL = 0.2 x V_CC
1.3V < V_CC < 1.7V; V_OL = 0.2x V_CC
DS1340-18
I_CCA
DS1340-3
DS1340-33
DS1340-18
I_CCS
DS1340-3
DS1340-33
I_BACKUPLKG V_BACKUP = 3.7V
MIN TYP MAX
1.71
1.8
1.89
2.7
3.0
3.3
2.97
3.3
5.5
0.7 x V_CC
V_CC + 0.3
-0.3
+0.3 x V_CC
UNITS
V
V
V
5.5
V
1.3
3.7
1.3
3.7
V
1.3
5.5
250
2000
Ω
4000
1.51
1.6
1.71
2.45
2.6
2.7
V
2.70 2.88 2.97
-1
+1
µA
-1
+1
µA
3.0
mA
3.0
3.0
mA
3.0
250
µA
72
150
108
200
µA
192
300
60
100
81
125
µA
100
150
100
nA
DC ELECTRICAL CHARACTERISTICS
(V_CC = 0V, V_BACKUP = 3.7V, T_A = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
I_BACKUP1 OSC ON, FT = 0 (Note 15)
V_BACKUP Current
I_BACKUP2
I_BACKUP3
OSC ON, FT = 1 (Note 15)
OSC ON, FT = 0, V_BACKUP = 3.0V,
T_A = +25°C (Notes 15, 16)
V_BACKUP Data-Retention Current I_BACKUPDR OSC OFF
MIN TYP MAX UNITS
800 1150
850 1250
nA
800 1000
25.0 100
nA
_____________________________________________________________________ 3