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X1205 Datasheet, PDF (12/22 Pages) Xicor Inc. – Real Time Clock/Calendar | |||
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X1205 â Preliminary Information
ABSOLUTE MAXIMUM RATINGS
Temperature Under Bias ................... -65°C to +135°C
Storage Temperature......................... -65°C to +150°C
Voltage on VCC, VBACK and IRQ
pin (respect to ground) ............................-0.5V to 7.0V
Voltage on SCL, SDA, X1 and X2
pin (respect to ground) ............... -0.5V to 7.0V or 0.5V
above VCC or VBACK (whichever is higher)
DC Output Current .............................................. 5 mA
Lead Temperature (Soldering, 10 sec) ...............300°C
Stresses above those listed under âAbsolute Maximum
Ratingsâ may cause permanent damage to the device.
This is a stress rating only and the functional operation
of the device at these or any other conditions above
those indicated in the operational sections of this
speciï¬cation is not implied. Exposure to absolute max-
imum rating conditions for extended periods may affect
device reliability.
DC OPERATING CHARACTERISTICS (Temperature = -40°C to +85°C, unless otherwise stated.)
Symbol
VCC
VBACK
VCB
VBC
Parameter
Main Power Supply
Backup Power Supply
Switch to Backup Supply
Switch to Main Supply
Conditions
Min
Typ
Max
Unit
2.7
5.5
V
1.8
5.5
V
VBACK -0.2
VBACK
VBACK -0.1 V
VBACK +0.2 V
Notes
OPERATING CHARACTERISTICS
Symbol
Parameter
Conditions
Min
ICC1
ICC2
ICC3
IBACK
Read Active Supply
Current
Program Supply Current
(nonvolatile)
Main Timekeeping
Current
Timekeeping Current
VCC = 2.7V
VCC = 5.5V
VCC = 2.7V
VCC = 5.5V
VCC = 2.7V
VCC = 5.5V
VBACK = 1.8V
VBACK = 3.3V
ILI
Input Leakage Current
ILO
Output Leakage Current
VIL
Input LOW Voltage
-0.5
VIH
VHYS
VOL
Input HIGH Voltage
Schmitt Trigger Input
Hysteresis
Output LOW Voltage for
SDA/IRQ
VCC related level
VCC = 2.7V
VCC = 5.5V
VCC x 0.7 or
VBACK x 0.7
.05 x VCC or
.05 x VBACK
Typ
1.25
1.5
Max
400
800
2.5
3.0
5
10
10
10
VCC x 0.2 or
VBACK x 0.2
VCC + 0.5 or
VBACK + 0.5
Unit
µA
µA
mA
mA
µA
µA
µA
µA
µA
µA
V
V
Notes
1, 5, 7, 14
2, 5, 7, 14
3, 7, 8, 14, 15
3, 6, 9, 14, 15
âSee Perfor-
mance Dataâ
10
10
13
13
V
13
0.4
V
11
0.4
REV 1.0.9 8/29/02
www.xicor.com
Characteristics subject to change without notice. 12 of 22
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