參數(shù)資料
型號： X1288V14I-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)： 6/31頁
文件大?。?/td> 560K
代理商： X1288V14I-2.7
6 of 31
REV 1.1.30 3/24/04
www.xicor.com
Preliminary Information
X1288
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
Address Byte 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
(3) The device goes into the Timekeeping state 200nS after any stop, except those that initiate a nonvolatile write cycle; t
stop that initiates a nonvolatile write cycle; or 9 clock cycles after any start that is not followed by the correct Device Select Bits in
the Slave Address Byte.
(4) For reference only and not tested.
(5) V
IL
= V
CC
x 0.1, V
IH
= V
CC
x 0.9, f
SCL
= 400KHz
(6) V
CC
= 0V
(7) V
BACK
= 0V
(8) V
SDA
= V
SCL
=V
CC
, Others = GND or V
CC
(9) V
SDA
=V
SCL
=V
BACK
, Others = GND or V
BACK
(10)V
SDA
= GND or V
CC
,
V
SCL
= GND or V
CC
,
V
RESET
= GND or V
CC
(11)I
OL
= 3.0mA at 5.5V, 1.5mA at 2.7V
(12)
I
OH
= -1.0mA at 5.5V, -0.4mA at 2.7V
(13)Threshold voltages based on the higher of Vcc or Vback.
(14)Using recommended crystal and oscillator network applied to X1 and X2 (25°C).
(15)Typical values are for T
A
= 25°C
WC
.
WC
after a
Capacitance
T
A
= 25°C, f = 1.0 MHz, V
CC
= 5V
Symbol
C
OUT
(1)
Output Capacitance (SDA, PHZ/IRQ, RESET)
C
IN
(1)
Input Capacitance (SCL)
Notes:
(1) This parameter is not 100% tested.
(2) The input capacitance between x1 and x2 pins can be varied between 5pF and 19.75pF by using analog trimming registers
AC CHARACTERISTICS
AC Test Conditions
Figure 1. Standard Output Load for testing the device with V
CC
= 5.0V
Parameter
Max.
10
10
Units
pF
pF
Test Conditions
V
OUT
= 0V
V
IN
= 0V
Input Pulse Levels
Input Rise and Fall Times
Input and Output Timing
Levels
Output Load
V
CC
x 0.1 to V
CC
x 0.9
10ns
V
CC
x 0.5
Standard Output Load
SDA
1533
100pF
5.0V
For V
OL
= 0.4V
and I
OL
= 3 mA
Equivalent AC Output Load Circuit for V
CC
= 5V
1316
5.0V
PHZ/IRQ
100pF
806
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