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参数资料
| 型号： | DS1232LP |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | Low Power MicroMonitor Chip(低功耗微监控芯片) |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8 |
| 封装： | 0.300 INCH, DIP-8 |
| 文件页数： | 1/7页 |
| 文件大小： | 61K |
| 代理商： | DS1232LP |
DS1232LP/LPS
Low Power MicroMonitor Chip
DS1232LP/LPS
062698 1/7
FEATURES
Super low-power version of DS1232
50 A quiescent current
Halts and restarts an out–of–control microprocessor
Automatically restarts microprocessor after power
failure
Monitors pushbutton for external override
Accurate 5% or 10% microprocessor power supply
monitoring
8–pin DIP, 8–pin SOIC or space saving
μ
–SOP pack-
age available
Optional 16–pin SOIC package available
Industrial temperature –40
°
C to +85
°
C available, des-
ignated N
PIN ASSIGNMENT
1
2
3
4
8
7
6
5
V
CC
ST
RST
RST
PBRST
TD
TOL
GND
DS1232LP 8–Pin DIP
(300 Mil)
See Mech. Drawings
Section
DS1232LPS 16–Pin SOIC
(300 Mil)
See Mech. Drawings
Section
1
2
3
4
5
6
7
8
TD
TOL
GND
PBRST
VCC
ST
RST
RST
DS1232LPS–2 8–Pin
SOIC
(150 Mil)
See Mech. Drawings
Section
NC
PBRST
NC
TD
NC
TOL
NC
GND
NC
VCC
NC
ST
NC
RST
NC
RST
1
11
10
12
13
14
2
3
4
5
6
7
8
9
15
16
DS1232LP
μ
(118 MIL
μ
–SOP)
See Mech. Drawings
Section
V
CC
ST
RST
RST
8
7
6
5
1
2
3
4
PBRST
TD
TOL
GND
PIN DESCRIPTION
PBRST
TD
TOL
GND
RST
RST
ST
V
CC
– Pushbutton Reset Input
– Time Delay Set
– Selects 5% or 10% V
CC
Detect
– Ground
– Reset Output (Active High)
– Reset Output (Active Low, open drain)
– Strobe Input
– +5 Volt Power
DESCRIPTION
The DS1232LP/LPS Low Power MicroMonitor Chip
monitors three vital conditions for a microprocessor:
power supply, software execution, and external over-
ride. First, a precision temperature–compensated refer-
ence and comparator circuit monitors the status of V
CC
.
When an out–of–tolerance condition occurs, an internal
power fail signal is generated which forces reset to the
active state. When V
CC
returns to an in-tolerance condi-
tion, the reset signals are kept in the active state for a
minimum of 250 ms to allow the power supply and pro-
cessor to stabilize.
The second function the DS1232LP/LPS performs is
pushbutton reset control. The DS1232LP/LPS de-
bounces the pushbutton input and guarantees an active
reset pulse width of 250 ms minimum. The third function
is a watchdog timer. The DS1232LP/LPS has an inter-
nal timer that forces the reset signals to the active state if
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1232LP+ | 功能描述:监控电路 Low Power MicroMonitor Chip 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 |
| DS1232LPN | 功能描述:监控电路 Low Power MicroMonitor Chip 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 |
| DS1232LPN+ | 功能描述:监控电路 Low Power MicroMonitor Chip 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 |
| DS1232LPS | 功能描述:监控电路 Low Power MicroMonitor Chip 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 |
| DS1232LPS/T&R | 制造商:Maxim Integrated Products 功能描述:MICROMONITOR LOW POWER 16PIN SO TRL - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MICRO MONITOR LP 16-SOIC 制造商:Maxim Integrated Products 功能描述:Supervisory Circuits Low Power MicroMonitor Chip |
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