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参数资料
| 型号： | DS1232 |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | MicroMonitor Chip(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： | 59K |
| 代理商： | DS1232 |
DS1232
MicroMonitor Chip
DS1232/DS1232S
050798 1/7
FEATURES
Halts and restarts an out–of–control microprocessor
Holds microprocessor in check during power
transients
Automatically restarts microprocessor after power
failure
Monitors pushbutton for external override
Accurate 5% or 10% microprocessor power supply
monitoring
Eliminates the need for discrete components
Space–saving, 8–pin mini–DIP
Optional 16–pin SOIC surface mount package
Industrial temperature –40
°
C to +85
°
C available,
designated N
PIN ASSIGNMENT
DS1232 8–PIN DIP
(300 MIL)
See Mech. Drawings
Section
VCC
ST
RST
RST
PBRST
TD
TOL
GND
NC
PBRST
NC
TD
NC
TOL
NC
GND
NC
VCC
NC
ST
NC
RST
NC
RST
DS1232S 16–PIN SOIC
(300 MIL)
See Mech. Drawings
Section
1
2
3
4
5
6
7
8
1
11
10
12
13
14
2
3
4
5
6
7
8
9
15
16
PIN DESCRIPTION
PBRST
TD
TOL
GND
RST
RST
ST
V
CC
NC
– 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
– No Connections
DESCRIPTION
The DS1232 MicroMonitor Chip monitors three vital
conditions for a microprocessor: power supply, software
execution, and external override. First, a precision tem-
perature–compensated reference and comparator cir-
cuit monitors the status of V
CC
. When an out–of–toler-
ance condition occurs, an internal power fail signal is
generated which forces reset to the active state. When
V
CC
returns to an in–tolerance condition, the reset sig-
nals are kept in the active state for a minimum of 250 ms
to allow the power supply and processor to stabilize.
The second function the DS1232 performs is pushbut-
ton reset control. The DS1232 debounces the pushbut-
ton input and guarantees an active reset pulse width of
250 ms minimum. The third function is a watchdog timer.
The DS1232 has an internal timer that forces the reset
signals to the active state if the strobe input is not driven
low prior to time–out. The watchdog timer function can
be set to operate on time–out settings of approximately
150 ms, 600 ms, and 1.2 seconds.
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| DS1236A | MicroManager Chip(微管理器芯片) |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1232+ | 功能描述:监控电路 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 |
| DS1232G | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Detector |
| DS1232GN | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Detector |
| DS1232L | 制造商:Maxim Integrated Products 功能描述: |
| 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 |
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