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| 型号： | MAX792MCPE |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC MPU SUPRVSRY CIRC 4.37V 16DIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 25 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 推挽式，推挽式 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 4.37V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 16-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 16-PDIP |
| 包装： | 管件 |
19-0147; Rev. 4; 11/05
Microprocessor and Nonvolatile
Memory Supervisory Circuits
General Description
The MAX792/MAX820 microprocessor (μP) supervisory
circuits provide the most functions for power-supply
and watchdog monitoring in systems without battery
backup. Built-in features include the following:
? μP reset: Assertion of RESET and RESET outputs during
power-up, power-down, and brownout conditions.
RESET is guaranteed valid for V CC down to 1V.
Features
? Manual-Reset Input
? 200ms Power-OK / Reset Time Delay
? Independent Watchdog Timer—Preset or Adjustable
? On-Board Gating of Chip-Enable Signals
? Memory Write-Cycle Completion
? 10ns (max) Chip-Enable Gate Propagation Delay
? Manual-reset input.
? Two-stage power-fail warning: A separate low-line
comparator compares V CC to a preset threshold
120mV above the reset threshold; the low-line and
reset thresholds can be programmed externally.
?
?
Voltage Monitor for Overvoltage Warning
±2% Reset and Low-Line Threshold Accuracy
(MAX820, external programming mode)
Ordering Information
? Watchdog fault output: Assertion of WDO if the watchdog
input is not toggled within a preset timeout
period.
PART**
MAX792 _CPE
MAX792_CSE
TEMP. RANGE
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
? Pulsed watchdog output: Advance warning of
impending WDO assertion from watchdog timeout that
causes hardware shutdown.
? Write protection of CMOS RAM, EEPROM, or other
memory devices.
The MAX792 and MAX820 are identical, except the
MAX820 guarantees higher low-line and reset threshold
accuracy (±2%).
MAX792_C/D 0°C to +70°C Dice*
Ordering Information continued at end of data sheet.
* Dice are tested at T A = +25°C, DC parameters only.
** These parts offer a choice of five different reset threshold voltages.
Select the letter corresponding to the desired nominal reset threshold
voltage and insert it into the blank to complete the part number.
Devices in PDIP, SO and μMAX packages are available in both lead-
ed and lead-free packaging. Specify lead free by adding the + sym-
bol at the end of the part number when ordering. Lead free not avail-
able for CERDIP package.
Computers
Controllers
Applications
SUFFIX
L
M
T
RESET THRESHOLD (V)
4.62
4.37
3.06
Intelligent Instruments
Critical μP Power Monitoring
V CC
3
0.1μF
S
R
2.91
2.61
Typical Operating Circuit
4
V CC
RESET IN/INT
CE OUT
13
V CC
μ P
MAX792
RAM
5
LLIN/
REFOUT
CE IN
OVO
14
6
ADDRESS
DECODER
A0-A15
LOW LINE
10
NMI
7
8
OVI
SWT
RESET
MR
1
9
RESET
GND
12
GND
________________________________________________________________ Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX792MCPE+ | 功能描述:监控电路 MPU & NV Memory Supervisor 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 |
| MAX792MCSE | 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 |
| MAX792MCSE+ | 功能描述:监控电路 MPU & NV Memory Supervisor 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 |
| MAX792MCSE+T | 功能描述:监控电路 MPU & NV Memory Supervisor 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 |
| MAX792MCSE-T | 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 |
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