X1241 – Preliminary Information
ABSOLUTE MAXIMUM RATINGS
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only; the functional operation of
the device (at these or any other conditions above those
indicated in the operational sections of this specifica-
tion) is not implied. Exposure to absolute maximum rat-
ing conditions for extended periods may affect device
reliability.
Temperature under bias .................... -65°C to +135°C
Storage temperature ......................... -65°C to +150°C
Voltage on any pin with
respect to ground.................................-1.0V to 7.0V
DC output current................................................ 5 mA
Lead temperature (soldering, 10 seconds)........ 300°C
DC OPERATING CHARACTERISTICS (Temperature = -40°C to +85°C, unless otherwise stated.)
Symbol
Parameter
Conditions
Min.
2.7
Typ.
Max.
5.5
Unit
V
Notes
V
Main Power Supply
Backup Power Supply
Switch to Backup Supply
Switch to Main Supply
CC
V
1.8
5.5
V
BACK
V
V
V
– 0.2
V
V
– 0.1
V
17
17
CB
BACK
BACK
V
+ 0.1
V
BC
BACK
BACK
I
I
I
Read Active Supply
Current
V
V
V
V
V
V
= 2.7V
= 5.5V
= 2.7V
= 5.5V
= 2.7V
= 5.5V
400
µA
µA
µA
mA
mA
µA
µA
µA
µA
µA
µA
µA
V
5, 8, 15
CC1
CC
CC
CC
CC
CC
CC
800
1.5
3.0
2.0
2.5
1.0
1.5
3
Program Supply Current
(nonvolatile)
5, 8, 16, 17
5, 7, 16, 17
7, 10, 16, 17
7, 10, 16, 17
CC2
CC3
Main Timekeeping
Current
I
I
Backup Timekeeping
Current
V
= 1.8V
= 5.5V
= 1.8V
= 5.5V
BACK1
BACK2
BACK
BACK
BACK
BACK
V
V
V
Backup Supply Current
(External crystal network)
1.6
7.5
10
I
Input Leakage Current
Output Leakage Current
Input LOW Voltage
10
11
11
LI
I
10
LO
V
-0.5
V
V
x 0.2 or
CC
5, 14
IL
x 0.2
BACK
V
Input HIGH Voltage
V
V
x 0.7 or
V
+ 0.5
+ 0.5
V
V
V
5, 14
14
IH
CC
CC
x 0.7
V
BACK
BACK
V
Schmitt Trigger Input
Hysteresis
V
related level .05 x V or
HYS
CC CC
.05 x V
BACK
V
Output LOW Voltage
V
V
V
V
= 2.7V
= 5.5V
= 2.7V
= 5.5V
0.4
0.4
12
OL
CC
CC
CC
CC
V
Output HIGH Voltage
1.6
2.4
V
13
OH
Characteristics subject to change without notice. 15 of 22
REV 1.1.3 2/13/01
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