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| 型号： | MAX1232MJA |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/6页 |
| 文件大小： | 0K |
| 描述： | IC VOLT MONITOR PRECISION 8-CDIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 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 250 ms |
| 电压 - 阀值： | 4.37V，4.62V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-CDIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-CERDIP |
| 包装： | 管件 |
19-3899; Rev 1; 11/05
Microprocessor Monitor
General Description
The MAX1232 microprocessor (μP) supervisory circuit
provides μP housekeeping and power-supply supervi-
sion functions while consuming only 1/10th the power of
the DS1232. The MAX1232 enhances circuit reliability
in μP systems by monitoring the power supply, monitor-
ing the software execution, and providing a debounced
manual reset input. The MAX1232 is a plug-in upgrade
of the Dallas DS1232.
A reset pulse of at least 250ms duration is supplied on
power-up, power-down, and low-voltage brownout
conditions (5% or 10% supply tolerances can be
selected digitally). Also featured is a debounced man-
ual reset input that forces the reset outputs to their
active states for a minimum of 250ms. A digitally pro-
Features
o Consumes 1/10th the Power of the DS1232
o Precision Voltage Monitor—Adjustable +4.5V
or +4.75V
o Power-OK/Reset Pulse Width—250ms Min
o No External Components
o Adjustable Watchdog Timer—150ms, 600ms,
or 1.2s
o Debounced Manual Reset Input for External
Override
o Available in 8-Pin PDIP/SO and 16-Pin Wide SO
Packages
Ordering Information
grammable watchdog timer monitors software execu-
tion and can be programmed for timeout settings of
150ms, 600ms, or 1.2s. The MAX1232 requires no
external components.
PART
MAX1232C/D
MAX1232CPA
TEMP RANGE
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
Dice*
8 PDIP
Applications
MAX1232CSA 0°C to +70°C
Ordering Information continued on last page.
8 SO
Computers
Controllers
Intelligent Instruments
Automotive Systems
Critical μP Power Monitoring
*Contact factory for dice specifications.
Devices in PDIP and SO packages are available in both leaded
and lead-free packaging. Specify lead free by adding the +
symbol at the end of the part number when ordering. Lead free
not available for CERDIP package.
Pin Configurations
TOP VIEW
PB RST 1
8
V CC
Typical Operating Circuit
TD 2
3
TOL
GND 4
MAX1232
7
6
5
ST
RST
RST
V CC
RST
TOL
5%/10%
TOLERANCE
SELECT
RESET
GENERATOR
DIP/SO
REF
RST
N.C. 1
PB RST 2
16 N.C.
15 V CC
PB RST
DEBOUNCE
MAX1232
N.C. 3
TD 4
MAX1232
14 N.C.
13 ST
N.C. 5
12 N.C.
TD
WATCHDOG
TIMEBASE
SELECT
GND
WATCHDOG
TIMER
ST
TOL 6
N.C. 7
GND 8
11 RST
10 N.C.
RST
9
WIDE SO
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1232MJA/883B | 功能描述:监控电路 MPU 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 |
| MAX1232MLP/883B | 功能描述:监控电路 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 |
| MAX1232MSA/PR | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX1233EGI | 功能描述:触摸屏转换器和控制器 RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
| MAX1233EGI+ | 制造商:Maxim Integrated Products 功能描述: |
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