參數(shù)資料
型號: X1288V14-2.7
元件分類: CPU監(jiān)測
英文描述: RTC Module With CPU Supervisor
中文描述: 時鐘模塊CPU監(jiān)控
文件頁數(shù): 5/31頁
文件大?。?/td> 560K
代理商: X1288V14-2.7
5 of 31
REV 1.1.30 3/24/04
www.xicor.com
Preliminary Information
X1288
ABSOLUTE MAXIMUM RATINGS
Temperature Under Bias ................... -65°C to +135°C
Storage Temperature......................... -65°C to +150°C
Voltage on V
CC
, V
BACK
and PHZ/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 V
CC
or V
BACK
(whichever is higher)
DC Output Current.............................................. 5 mA
Lead Temperature (Soldering, 10 sec)...............300°C
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 spec-
ification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect
device reliability.
DC OPERATING CHARACTERISTICS
(Temperature = -40°C to +85°C, unless otherwise stated.)
OPERATING CHARACTERISTICS
Symbol
V
CC
V
BACK
V
CB
V
BC
Parameter
Conditions
Min
2.7
1.8
Typ
Max
5.5
5.5
Unit
V
V
V
V
Notes
Main Power Supply
Backup Power Supply
Switch to Backup Supply
Switch to Main Supply
V
BACK
V
BACK
-0.2
V
V
BACK
-0.1
+0.2
BACK
Symbol
I
CC1
Parameter
Conditions
V
CC
= 2.7V
V
CC
= 5.0V
V
CC
= 2.7V
V
CC
= 5.0V
V
CC
= 2.7V
V
CC
= 5.0V
V
BACK
Min
Typ
Max
400
800
2.5
3.0
10
20
Unit
μA
μA
mA
mA
μA
μA
μA
Notes
1, 5, 7, 14
Read Active Supply
Current
I
CC2
Program Supply Current
(nonvolatile)
2, 5, 7, 14
I
CC3
Main Timekeeping
Current
3, 7, 8, 14, 15
I
BACK
Timekeeping Current –
(Low Voltage Sense and
Watchdog Timer dis-
abled
Input Leakage Current
Output Leakage Current
Input LOW Voltage
= 1.8V
1.25
3, 6, 9, 14, 15
“See Perfor-
mance Data”
V
BACK
= 3.3V
1.5
μA
I
LI
10
10
x 0.2 or
BACK
x 0.2
+ 0.5 or
BACK
μA
μA
V
10
10
13
I
V
LO
IL
-0.5
V
V
V
V
CC
V
IH
Input HIGH Voltage
V
V
.05 x V
.05 x V
CC
BACK
x 0.7 or
x 0.7
CC
+ 0.5
V
13
V
HYS
Schmitt Trigger Input
Hysteresis
Output LOW Voltage for
SDA and RESET
V
CC
related level
CC
BACK
or
V
13
V
OL1
V
V
V
V
V
V
CC
= 2.7V
= 5.5V
= 2.7V
= 5.5V
= 2.7V
= 5.5V
0.4
0.4
x 0.3
x 0.3
V
11
CC
V
OL2
Output LOW Voltage for
PHZ/IRQ
CC
V
V
CC
V
11
CC
CC
V
OH2
Output HIGH Voltage for
PHZ/IRQ
CC
V
V
CC
x 0.7
x 0.7
V
12
CC
CC
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