X1240
ABSOLUTE MAXIMUM RATINGS
Stresses above those listed under “Absolute Maximum
Ratings” 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
specification is not implied. Exposure to absolute max-
imum rating 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
Min
2.7
Typ
Max
3.6
Unit
Notes
Vcc
Main Power Supply
V
V
V
V
Backup Power Supply
Switch to Backup Supply
Switch to Main Supply
Read Active Supply Current
1.8
3.6
V
V
BACK
V
V
=
=
V
-0.2
V
(17)
CB
CC
BACK
BACK -0.1
V
V
V
(17)
BC
CC
BACK
BACK +0.1
400
I
I
I
I
I
V
V
V
V
V
V
= 2.7V
= 3.6V
= 2.7V
= 3.6V
= 2.7V
= 3.6V
µA
µA
(5), (8), (15)
CC1
CC
CC
CC
CC
CC
CC
800
1.5
3.0
1.7
1.5
1.0
1.5
3
Program Supply Current
(nonvolatile)
mA (5), (8), (16), (17)
mA
CC2
Main Timekeeping Current
µA
µA
µA
µA
µA
µA
µA
µA
V
(5), (7), (16), (17)
CC3
Backup Timekeeping Current
V
V
V
V
= 1.8V
= 3.6V
= 1.8V
= 3.6V
(7), (10), (16),
(17)
BACK1
BACK2
BACK
BACK
BACK
BACK
Backup Supply Current
(External crystal network)
1.6
7.5
(7), (10), (16),
(17)
10
I
I
Input Leakage Current
Output Leakage Current
Input LOW Voltage
10
(11)
(11)
LI
10
LO
V
V
V
V
-0.5
V
x 0.2 or
(5), (14)
IL
CC
V
x 0.2
BACK
Input HIGH Voltage
V
x 0.7 or
V
V
+ 0.5
V
V
V
(5), (14)
(14)
IH
CC
CC
V
x 0.7
+ 0.5
BACK
BACK
Schmitt Trigger Input
Hysteresis
Vcc related level
.05 x V
.05 x V
or
HYS
OL
CC
BACK
Output LOW Voltage
V
V
V
V
= 2.7V
= 3.6V
= 2.7V
= 3.6V
0.4
0.4
(12)
CC
CC
CC
CC
V
Output HIGH Voltage
1.6
2.4
V
(13)
OH
Notes: (1) The device enters the Active state after any start, and remains active: for 9 clock cycles if the Device Select Bits in the Slave
AddressByte are incorrect or until 200nS after a stop ending a read or write operation.
(2) The device enters the Program state 200nS after a stop ending a write operation and continues for t
.
WC
13