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參數(shù)資料
| 型號： | X1243S8I |
| 廠商： | INTERSIL CORP |
| 元件分類： | XO, clock |
| 英文描述： | Real Time Clock/Calendar/Alarm with EEPROM |
| 中文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封裝： | PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 15/18頁 |
| 文件大?。?/td> | 90K |
| 代理商： | X1243S8I |
X1243
15
3:
V
IL
= V
CC
x 0.1, V
IH
= V
CC
x 0.9, f
SCL
= 400KHz, SDA = Open
V
CC
= 0V.
V
BACK
= 0V.
V
SDA
=V
SCL
=V
BACK
, Others=GND or V
BACK
V
SDA
= GND to V
CC,
V
CLK
= GND or V
CC
I
OL
= 3.0mA at 5V, 1.5mA at 1.8V
Threshold voltages based on the higher of Vcc or Vback.
4:
5:
6:
7:
8:
9:
10:
Driven by external 32.768KHz square wave oscillator on X1, X2 open.
11:
Using recommended crystal and oscillator network applied to X1 and X2 (25°C).
Capacitance (T
A
= 25C, f = 1.0 MHz, V
CC
= 5V)
1.
This parameter is periodically sampled and not 100% tested.
AC CHARACTERISTICS
AC Test Conditions
Symbol
C
OUT
(1)
C
IN
(1)
Parameter
Max
Units
Test Conditions
Output Capacitance (SDA, IRQ)
8
pF
V
OUT
= 0V
Input Capacitance (SCL)
6
pF
V
IN
= 0V
Input Pulse Levels
Input Rise and Fall Times
Input and Output Timing
Levels
Output Load
V
CC
CC
x 0.9
10ns
V
CC
x 0.5
Standard Output Load
Equivalent AC Output Load Circuit for V
CC
= 5V
5.0V
Figure 14. Standard Output Load for testing the
device with V
CC
= 5.0V
SDA.
IRQ
1533
100pF
For V
OL
= 0.4V
and I
OL
= 3 mA
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