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DS1238AS-5+T&R PDF预览

DS1238AS-5+T&R

更新时间: 2024-11-14 14:49:07
品牌 Logo 应用领域
美信 - MAXIM 输入元件光电二极管
页数 文件大小 规格书
13页 214K
描述
Power Supply Management Circuit, Fixed, 1 Channel, PDSO16, 0.300 INCH, ROHS COMPLIANT, SOIC-16

DS1238AS-5+T&R 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:SOIC包装说明:SOP,
针数:16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.3其他特性:PUSHBUTTON RESET INPUT
可调阈值:NO模拟集成电路 - 其他类型:POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码:R-PDSO-G16JESD-609代码:e3
长度:10.3 mm信道数量:1
功能数量:1端子数量:16
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:2.65 mm最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):4.75 V标称供电电压 (Vsup):5 V
表面贴装:YES温度等级:COMMERCIAL
端子面层:MATTE TIN端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:7.5 mm
Base Number Matches:1

DS1238AS-5+T&R 数据手册

 浏览型号DS1238AS-5+T&R的Datasheet PDF文件第2页浏览型号DS1238AS-5+T&R的Datasheet PDF文件第3页浏览型号DS1238AS-5+T&R的Datasheet PDF文件第4页浏览型号DS1238AS-5+T&R的Datasheet PDF文件第5页浏览型号DS1238AS-5+T&R的Datasheet PDF文件第6页浏览型号DS1238AS-5+T&R的Datasheet PDF文件第7页 
DS1238A  
MicroManager  
www.dalsemi.com  
FEATURES  
PIN ASSIGNMENT  
Holds microprocessor in check during power  
transients  
VBAT  
VCCO  
VCC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
RST  
RST  
WDS  
CEI  
CEO  
ST  
Halts and restarts an out-of-control  
microprocessor  
Warns microprocessor of an impending power  
failure  
Converts CMOS SRAM into nonvolatile  
memory  
Unconditionally write protects memory when  
power supply is out of tolerance  
Delays write protection until completion of  
the current memory cycle  
VBAT  
VCCO  
VCC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
RST  
RST  
WDS  
CEI  
CEO  
ST  
GND  
PF  
GND  
RVT  
PF  
OSCIN  
OSCSEL  
NMI  
IN  
RVT  
OSCIN  
OSCSEL  
NMI  
IN  
16-Pin DIP (300-mil)  
16-Pin SOIC (300-mil)  
See Mech. Drawings Section  
See Mech. Drawings Section  
Consumes less than 200 nA of battery current  
Controls external power switch for high  
current applications  
Debounces pushbutton reset  
Accurate 10% power supply monitoring  
Optional 5% power supply monitoring  
designated DS1238A-5  
PIN DESCRIPTION  
VBAT  
VCCO  
VCC  
GND  
PF  
- +3-Volt Battery Input  
- Switched SRAM Supply Output  
- +5-Volt Power Supply Input  
- Ground  
Provides orderly shutdown in microprocessor  
applications  
- Power-Fail  
RVT  
OSCIN  
OSCSEL  
IN  
- Reset Voltage Threshold  
- Oscillator In  
- Oscillator Select  
- Early Warning Input  
- Non-Maskable Interrupt  
- Strobe Input  
Pin-for-pin compatible with MAX691  
Standard 16-pin DIP or space-saving 16-pin  
SOIC  
Optional industrial temperature range -40°C  
to +85°C  
NMI  
ST  
CEO  
- Chip Enable Output  
- Chip Enable Input  
- Watchdog Status  
- Reset Output (active low)  
- Reset Output (active high)  
CEI  
WDS  
RST  
RST  
DESCRIPTION  
The DS1238A MicroManager provides all the necessary functions for power supply monitoring, reset  
control, and memory backup in microprocessor-based systems. A precise internal voltage reference and  
comparator circuit monitor power supply status. When an out-of-tolerance condition occurs, the  
microprocessor reset and power-fail outputs are forced active, and static RAM control unconditionally  
write protects external memory. The DS1238A also provides early warning detection of a user-defined  
threshold by driving a non-maskable interrupt. External reset control is provided by a pushbutton reset  
1 of 13  
111899  

DS1238AS-5+T&R 替代型号

型号 品牌 替代类型 描述 数据表
DS1238AS-5 MAXIM

完全替代

Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO16, 0.300 INCH, SOIC-16
DS1238AS-5+ MAXIM

完全替代

Power Supply Management Circuit, Fixed, 1 Channel, PDSO16, 0.300 INCH, ROHS COMPLIANT, SOI

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