IDT1338
REAL-TIME CLOCK WITH BATTERY BACKED NON-VOLATILE RAM
RTC
DC Electrical Characteristics
(VCC = VCC(MIN) to VCC(MAX), TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = 3.3 V,
TA = +25°C, unless otherwise noted.) (Note 1)
Parameter
Input Leakage
Symbol
ILI
Conditions
Min.
Typ. Max. Units
Note 3
Note 4
1
µA
µA
I/O Leakage
ILO
1
VCC > 2 V; VOL = 0.4 V
VCC < 2 V; VOL = 0.2VCC
VCC > 2 V; VOL = 0.4 V
1.71 V < VCC < 2 V;
3.0
3.0
3.0
3.0
mA
SDA Logic 0 Output
IOLSDA
mA
mA
SQW/OUT Logic 0 Output
IOLSQW VOL = 0.2VCC
1.3 V < VCC < 1.71 V;
VOL = 0.2VCC
250
µA
IDT1338-18
75
150
200
325
IDT1338-31; VCC < 3.63 V
120
Active Supply Current (Note 5)
Standby Current (Note 6)
ICCA
µA
IDT1338-31; 3.63 V < VCC
5.5 V
<
<
IDT1338-18
60
85
100
125
200
IDT1338-31; VCC < 3.63 V
ICCS
µA
nA
IDT1338-31; 3.63 V < VCC
5.5 V
VBAT Leakage Current (VCC Active)
IBATLKG
25
100
DC Electrical Characteristics
(VCC = 0V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VBAT = 3.0 V, TA = +25°C, unless
otherwise noted.) (Note 1)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
VBAT Current (OSC ON); VBAT =3.7 V, IBATOSC1 Note 7
SQW/OUT OFF
800
1200
nA
VBAT Current (OSC ON); VBAT =3.7 V, IBATOSC2 Note 7
SQW/OUT ON
1025
10
1400
100
nA
nA
VBAT Data-Retention Current
(OSC OFF); VBAT =3.7 V
IBATDAT Note 7
IDT® REAL-TIME CLOCK WITH BATTERY BACKED NON-VOLATILE RAM 12
IDT1338
REV K 032910
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
