欢迎访问ic37.com |
会员登录 免费注册
发布采购

X1227S8I-2.7 参数 Datasheet PDF下载

X1227S8I-2.7图片预览
型号: X1227S8I-2.7
PDF下载: 下载PDF文件 查看货源
内容描述: 实时时钟/日历/ CPU监控器, EEPROM [Real Time Clock/Calendar/CPU Supervisor with EEPROM]
分类和应用: 计时器或实时时钟微控制器和处理器外围集成电路光电二极管监控可编程只读存储器电动程控只读存储器电可擦编程只读存储器
文件页数/大小: 28 页 / 442 K
品牌: XICOR [ XICOR INC. ]
 浏览型号X1227S8I-2.7的Datasheet PDF文件第13页浏览型号X1227S8I-2.7的Datasheet PDF文件第14页浏览型号X1227S8I-2.7的Datasheet PDF文件第15页浏览型号X1227S8I-2.7的Datasheet PDF文件第16页浏览型号X1227S8I-2.7的Datasheet PDF文件第18页浏览型号X1227S8I-2.7的Datasheet PDF文件第19页浏览型号X1227S8I-2.7的Datasheet PDF文件第20页浏览型号X1227S8I-2.7的Datasheet PDF文件第21页  
X1227  
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  
after a  
WC  
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)  
(6)  
(7)  
(8)  
(9)  
V
V
V
V
V
= V x 0.1, V = V x 0.9, f  
= 400KHz  
SCL  
IL  
CC  
IH  
CC  
= 0V  
CC  
= 0V  
BACK  
= V  
=V , Others = GND or V  
CC  
SDA  
SDA  
SDA  
SCL CC  
=V  
=V  
, Others = GND or V  
SCL BACK BACK  
(10) V  
= GND or V , V  
= GND or V , V  
= GND or V  
CC SCL  
CC RESET CC  
(11) I = 3.0mA at 5.5V, 1.5mA at 2.7V  
OL  
(12) I  
= -1.0mA at 5.5V, -0.4mA at 2.7V  
OH  
(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 = 25°C  
A
Capacitance T = 25°C, f = 1.0 MHz, V  
= 5V  
A
CC  
Symbol  
Parameter  
Output Capacitance (SDA, RESET)  
Input Capacitance (SCL)  
Max.  
10  
Units  
pF  
Test Conditions  
= 0V  
(1)  
C
V
OUT  
OUT  
(1)  
C
10  
pF  
V
= 0V  
IN  
IN  
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  
Input Pulse Levels  
V
x 0.1 to V x 0.9  
CC  
CC  
Input Rise and Fall Times  
10ns  
Input and Output Timing  
Levels  
V
x 0.5  
CC  
Output Load  
Standard Output Load  
Figure 18. Standard Output Load for testing the device with V = 5.3V  
CC  
Equivalent AC Output Load Circuit for V  
= 5V  
CC  
5.0V  
For V = 0.4V  
OL  
1533Ω  
and I = 3 mA  
OL  
SDA  
100pF  
Characteristics subject to change without notice. 17 of 28  
REV 1.1.20 1/13/03  
www.xicor.com  
 复制成功!