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參數(shù)資料
| 型號： | X1242 |
| 英文描述： | Real Time Clock/Calendar/Alarms/CPU Supervisor(實時時鐘/日歷/鬧鐘/帶EEPROM的監(jiān)控) |
| 中文描述： | 實時時鐘/日歷/報警/ CPU監(jiān)控（實時時鐘/日歷/鬧鐘/帶EEPROM中的監(jiān)控） |
| 文件頁數(shù)： | 16/24頁 |
| 文件大?。?/td> | 119K |
| 代理商： | X1242 |
X1242 – Preliminary Information
Characteristics subject to change without notice.
16 of 24
REV 1.1.3 10/15/00
www.xicor.com
ABSOLUTE MAXIMUM RATINGS
Temperature under bias .................... -65°C to +135°C
Storage temperature...........................65°C to +150°C
Voltage on any pin
(respect to ground)...............................-1.0V to 7.0V
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; 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
rating conditions for extended periods may affect
device reliability.
DC OPERATING CHARACTERISTICS
(Temperature = -40°C to +85°C, unless otherwise stated.)
Symbol
V
CC
V
BACK
V
CB
V
BC
I
CC1
Parameter
Conditions
Min.
2.7
1.8
Typ.
Max.
5.5
5.5
Unit
V
V
V
V
μA
μA
mA
mA
μA
μA
μA
μA
μA
μA
Notes
Main Power Supply
Backup Power Supply
Switch to Backup Supply
Switch to Main Supply
Read Active Supply
Current
V
BACK
- 0.2
V
BACK
V
BACK
– 0.1
V
BACK
+ 0.1
400
800
1.5
3.0
2.0
2.5
1.0
1.5
3
15
17
17
V
CC
= 2.7V
V
CC
= 5.5V
V
CC
= 2.7V
V
CC
= 5.5V
V
CC
= 2.7V
V
CC
=5.5V
V
BACK
= 1.8V
V
BACK
= 5.5V
V
BACK
= 1.8V
V
BACK
= 5.5V
4, 5, 8, 15
I
CC2
Program Supply Current
(nonvolatile)
4, 5, 8, 16, 17
I
CC3
Main Timekeeping
Current
4, 5, 7, 16, 17
I
BACK1
Backup Timekeeping
Current
4, 7, 10, 16, 17
I
BACK2
Backup Timekeeping
Current
(External crystal network)
Input Leakage Current
Output Leakage Current
Input LOW Voltage
1.6
7.5
4, 7, 10, 16, 17
I
LI
I
LO
V
IL
10
10
μA
μA
V
11
11
-0.5
V
CC
x 0.2 or
V
BACK
x 0.2
V
CC
+ 0.5
V
BACK
+ 0.5
5, 14
V
IH
Input HIGH Voltage
V
CC
x 0.7 or
V
BACK
x 0.7
.05 x V
CC
or
.05 x V
BACK
V
5, 14
V
HYS
Schmitt Trigger Input
Hysteresis
Output LOW Voltage
V
CC
related level
V
14
V
OL
V
CC
= 2.7V
V
CC
= 5.5V
V
CC
= 2.7V
V
CC
= 5.5V
0.4
0.4
V
12
V
OH
Output HIGH Voltage
1.6
2.4
V
13
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