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MAX820TCPE PDF预览

MAX820TCPE

更新时间: 2024-11-14 23:51:59
品牌 Logo 应用领域
美信 - MAXIM 监控
页数 文件大小 规格书
16页 272K
描述
Power Supply Supervisor

MAX820TCPE 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:DIP
包装说明:PLASTIC, DIP-16针数:16
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.15
其他特性:RESET THRESHOLD VOLTAGE IS 3.06V; MANUAL RESET INPUT可调阈值:NO
模拟集成电路 - 其他类型:POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码:R-PDIP-T16
JESD-609代码:e0长度:19.175 mm
湿度敏感等级:1信道数量:1
功能数量:1端子数量:16
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:DIP
封装等效代码:DIP16,.3封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):245
电源:3.3 V认证状态:Not Qualified
座面最大高度:4.572 mm子类别:Power Management Circuits
最大供电电流 (Isup):0.15 mA最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):2.75 V标称供电电压 (Vsup):5 V
表面贴装:NO技术:CMOS
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:7.62 mmBase Number Matches:1

MAX820TCPE 数据手册

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19-0147; Rev. 3; 4/00  
Microprocessor and Nonvolatile  
Memory Supervisory Circuits  
General Description  
Features  
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:  
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  
• µP reset: Assertion of RESET and RESET outputs during  
power-up, power-down, and brownout conditions.  
RESET is guaranteed valid for VCC down to 1V.  
10ns (max) Chip-Enable Gate Propagation Delay  
Voltage Monitor for Overvoltage Warning  
• Manual-reset input.  
• Two-stage power-fail warning: A separate low-line  
comparator compares VCC to a preset threshold  
120mV above the reset threshold; the low-line and  
reset thresholds can be programmed externally.  
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**  
TEMP. RANGE  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
PIN-PACKAGE  
16 Plastic DIP  
16 Narrow SO  
Dice*  
MAX792_CPE  
MAX792_CSE  
MAX792_C/D  
• Pulsed watchdog output: Advance warning of  
impending WDO assertion from watchdog timeout that  
causes hardware shutdown.  
Ordering Information continued at end of data sheet.  
* Dice are tested at T = +25°C, DC parameters only.  
**These parts offer a choice of five different reset threshold volt-  
ages. Select the letter corresponding to the desired nominal  
reset threshold voltage and insert it into the blank to complete the  
part number.  
• Write protection of CMOS RAM, EEPROM, or other  
memory devices.  
A
The MAX792 and MAX820 are identical, except the  
MAX820 guarantees higher low-line and reset threshold  
accuracy ( 2ꢀ).  
SUFFIX  
RESET THRESHOLD (V)  
Applications  
Computers  
Controllers  
L
M
T
S
R
4.62  
4.37  
3.06  
2.91  
2.61  
Intelligent Instruments  
Critical µP Power Monitoring  
Typical Operating Circuit  
V
CC  
0.1µF  
3
V
V
CC  
CC  
13  
14  
CE OUT  
4
5
RESET IN/INT  
µP  
RAM  
MAX792  
ADDRESS  
DECODER  
CE IN  
LLIN/  
A0-A15  
REFOUT  
6
OVO  
LOW LINE  
RESET  
10  
1
NMI  
7
8
OVI  
RESET  
9
MR  
SWT  
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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