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參數(shù)資料
| 型號： | X1202 |
| 英文描述： | Real Time Clock/Calendar/Alarms/CPU Supervisor(實(shí)時(shí)時(shí)鐘/日歷/鬧鐘/CPU監(jiān)控電路) |
| 中文描述： | 實(shí)時(shí)時(shí)鐘/日歷/報(bào)警/ CPU監(jiān)控（實(shí)時(shí)時(shí)鐘/日歷/鬧鐘/ CPU的監(jiān)控電路） |
| 文件頁數(shù)： | 16/23頁 |
| 文件大?。?/td> | 340K |
| 代理商： | X1202 |
X1202
Characteristics subject to change without notice.
16 of 23
REV 1.1.8 5/17/01
www.xicor.com
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
WC
.
(3) The device goes into the timekeeping state 200ns after any stop, except those that initiate a nonvolatile write cycle; t
WC
after a 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, SDA = open
(6) V
IL
= V
CC
x 0.1, V
IH
= V
CC
x 0.9, f
SCL
= 400kHz, f
SDA
= 400kHz, V
CC
= 1.22 x V
CC
Min
(7) V
CC
= 0V
(8) V
BACK
= 0V
(9) V
SDA
= V
SCL
= V
CC
, Others = GND or V
CC
(10)V
SDA
= V
SCL
= V
BACK
, Others = GND or V
BACK
(11)V
SDA
= GND to V
CC,
V
CLK
= GND or V
CC
(12)I
OL
= 3.0mA at 5V, 1.5mA at 2.7V
(13)I
OH
= -1.0mA at 5V, -0.4mA at 2.7V
(14)Threshold voltages based on the higher of V
CC
or V
BACK
.
(15)Driven by external 32.768kHz square wave oscillator on X1, X2 open.
(16)Using recommended crystal and oscillator network applied to X1 and X2 (25°C).
(17)Periodically sampled and not 100% tested
CAPACITANCE
T
A
= 25°C, F = 1.0 MHZ, V
CC
= 5V
Note:
(1) This parameter is periodically sampled and not 100% tested.
Symbol
C
OUT
(1)
C
IN
(1)
Parameter
Max.
8
6
Unit
pF
pF
Test Condition
V
OUT
= 0V
V
IN
= 0V
Output capacitance (SDA, RESET)
Input capacitance (SCL)
AC CHARACTERISTICS
AC Test Conditions
EQUIVALENT AC OUTPUT LOAD CIRCUIT FOR
V
CC
= 5V
(standard output load for testing the device
with V
CC
= 5.0V)
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
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