- 您现在的位置：买卖IC网 > PDF目录1787 > DS1231S-20N (Maxim Integrated Products)IC POWER MONITOR 20NS IND 16SOIC PDF资料下载
参数资料
| 型号： | DS1231S-20N |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/9页 |
| 文件大小： | 0K |
| 描述： | IC POWER MONITOR 20NS IND 16SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 45 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 150 ms |
| 电压 - 阀值： | 4.37V，4.62V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 管件 |
DS1231/S
DS1231/S
Power Monitor Chip
FEATURES
? Warns processor of an impending power failure
PIN ASSIGNMENT
? Provides time for an orderly shutdown
? Prevents processor from destroying nonvolatile
memory during power transients
? Automatically restarts processor after power is
IN
MODE
TOL
GND
1
2
3
4
8
7
6
5
VCC
NMI
RST
RST
restored
? Suitable for linear or switching power supplies
DS1231 8–Pin DIP
(300 MIL)
See Mech. Drawings
Section
? Adjusts to hold time of the power supply
? Supplies necessary signals for processor interface
? Accurate 5% or 10% V CC monitoring
? Replaces power-up reset circuitry
? No external capacitors required
NC
IN
NC
MODE
NC
TOL
NC
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NC
VCC
NC
NMI
NC
RST
NC
RST
? Optional 16-pin SOIC surface mount package
DS1231S 16–Pin SOIC
(300 MIL)
See Mech. Drawings
Section
PIN DESCRIPTION
DESCRIPTION
IN
MODE
TOL
GND
RST
RS T
NMI
V CC
NC
–
–
–
–
–
–
–
–
–
Input
Selects input pin characteristics
Selects 5% or 10% V CC detect
Ground
Reset (Active High)
Reset (Active Low, open drain)
Non–Maskable Interrupt
+5V Supply
No Connections
The DS1231 Power Monitor Chip uses a precise tem-
perature-compensated reference circuit which provides
an orderly shutdown and an automatic restart of a pro-
cessor-based system. A signal warning of an impending
power failure is generated well before regulated DC
voltages go out of specification by monitoring high volt-
age inputs to the power supply regulators. If line isola-
tion is required a UL-approved opto-isolator can be di-
rectly interfaced to the DS1231. The time for processor
shutdown is directly proportional to the available
hold-up time of the power supply. Just before the
hold-up time is exhausted, the Power Monitor uncondi-
tionally halts the processor to prevent spurious cycles
by enabling Reset as V CC falls below a selectable 5 or
10 percent threshold. When power returns, the proces-
sor is held inactive until well after power conditions have
stabilized, safeguarding any nonvolatile memory in the
system from inadvertent data changes.
022698 1/9
相关PDF资料 |
PDF描述 |
|---|---|
| DS1232LPSN/T&R | IC MICRO MONITOR LP IND 16-SOIC |
| DS1232SN | IC MICRO MONITOR IND 16-SOIC |
| DS1233AZ-15/T&R | IC ECONORESET 3.3V 15% SOT-223 |
| DS1233D-5+ | IC ECONORESET NO PBR 5% TO92-3 |
| DS1233MS-5/T&R | IC ECONORESET 5V(MC33164)8-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1231S-20N+ | 功能描述:监控电路 Power Monitor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| DS1231S-35 | 功能描述:监控电路 Power Monitor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| DS1231S-35/T&R | 制造商:Maxim Integrated Products 功能描述:POWER MONITOR-35-16PIN-SOIC-TRL - Tape and Reel 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:IC POWER MONITOR 35NS 16-SOIC 制造商:Maxim Integrated Products 功能描述:Supervisory Circuits Power Monitor |
| DS1231S-35/T&R | 功能描述:监控电路 Power Monitor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| DS1231S-35+ | 功能描述:监控电路 Power Monitor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。