参数资料
| 型号： | ISL1221IUZ-T |
| 厂商： | Intersil |
| 文件页数： | 2/24页 |
| 文件大小： | 0K |
| 描述： | IC RTC LP BATT BACK SRAM 10MSOP |
| 产品培训模块： | Solutions for Industrial Control Applications |
| 标准包装： | 1 |
| 类型： | 时间事件记录器 |
| 特点： | 警报器，闰年，SRAM |
| 存储容量： | 2B |
| 时间格式： | HH:MM:SS（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | I²C，2 线串口 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电压 - 电源，电池： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 标准包装 |
| 产品目录页面： | 1245 (CN2011-ZH PDF) |
| 其它名称： | ISL1221IUZ-TDKR |
10
FN6316.1
July 15, 2010
Event Detect Timing Diagram with
Sampling Mode Enabled
Case 1, Switch Opened Before Ipu
Case 2, Switch Opened After Ipu
Case 3, Switch Bounced
The ISL1221 can operate independently or in conjunction
with a microcontroller for low power operation modes or in
battery backup modes.
The event detection and time stamp circuits operate in either
main VDD power or battery backup mode.
Users have the option to connect EVIN (see EVINEB bit) to an
internal pull-up current source that operates at 1A (always on
mode), which can drop to 400nA in battery backup mode. User
selectable event sampling modes are also available which will
effectively reduce power consumption with 1/4-Hz, 1-Hz and 2-
Hz sample detection rates. The EVIN input is pulsed ON/OFF
when in sampling mode for power savings advantages (see
The EVIN also has a user selectable time based hysteresis
filter (see EHYS bits) to implement switch de-bouncing
during an event detection. The EVIN signal must be high for
the duration of the selected time period. The time periods
available are 0 times delay (no time based hysteresis) to
Real Time Clock Operation
The Real Time Clock (RTC) uses an external 32.768kHz
quartz crystal to maintain an accurate internal representation
of second, minute, hour, day of week, date, month, and year.
The RTC also has leap-year correction. The clock also
corrects for months having fewer than 31 days and has a bit
that controls 24 hour or AM/PM format. When the ISL1221
powers up after the loss of both VDD and VBAT, the clock will
not begin incrementing until at least one byte is written to the
clock register.
8 CLKS (8x)
15 CLKS (8x)
OFF
ON
OPEN
CLOSED
LOW
HIGH
LOW
EVDET
EVIN
EXT.
SWITCH
Ipu
8 CLKS (8x)
15 CLKS (8x)
OFF
ON
OPEN
CLOSED
LOW
HIGH
LOW
EVDET
EVIN
EXT.
SWITCH
Ipu
15 CLKS (8x)
OFF
ON
OPEN
CLOSED
LOW
HIGH
LOW
EVDET
EVIN
EXT.
SWITCH
Ipu
8 CLKS (8x)
TABLE 1.
ΔIDD (VDD = 3V, tHYS = 3.9ms)
fSMP
DELTA IDD
1/4Hz
20.5nA
1Hz
82nA
2Hz
164nA
TABLE 2.
ΔIDD (VDD = 5.0V, tHYS = 3.9ms)
fSMP
DELTA IDD
1/4Hz
65.8nA
1Hz
263.3nA
2Hz
526.5nA
TABLE 3.
ΔIDD (VDD = 3.0V, tHYS = 15.625ms)
fSMP
DELTA IDD
1/4Hz
82nA
1Hz
328nA
2Hz
656.3nA
TABLE 4.
ΔIDD (VDD = 5.0V, tHYS = 15.625ms)
fSMP
DELTA IDD
1/4Hz
264nA
1Hz
1.05A
2Hz
2.1A
ISL1221
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL14010 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Low Jitter Clock Generators for Set-Top Box |
| ISL14010IRZ | 功能描述:时钟合成器/抖动清除器 REAL TIME CLKRTC 16LD 3X3 RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| ISL14010IRZ-T | 功能描述:实时时钟 REAL TIME CLKRTC 16LD 3X3 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| ISL14011 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Low Jitter Clock Generators for Set-Top Box |
| ISL14011IRZ | 功能描述:时钟合成器/抖动清除器 REAL TIME CLKRTC 16LD 3X3 RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
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