MAX820_EPE

更新时间： 2024-09-25 22:12:27

品牌	Logo	应用领域
美信 - MAXIM		存储微处理器监控
页数	文件大小	规格书
16页	250K
描述
Microprocessor and Non-Volatile Memory Supervisory Circuits

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

MAX820_EPE 数据手册

19-0147; Rev. 2; 6/98

Mic ro p ro c e s s o r a n d No n -Vo la t ile

Me m o ry S u p e rvis o ry Circ u it s

79/MAX820

Ge n e ra l De s c rip t io n

Fe a t u re s

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

1) µP reset: Assertion of RESET and RESET outputs dur-

ing power-up, power-down, and brownout condi-

tions. RESET is guaranteed valid for V_CCdown to 1V.

♦ 10ns (max) Chip-Enable Gate Propagation Delay

♦ Voltage Monitor for Overvoltage Warning

2) Manual-reset input.

3) Two-stage power-fail warning: A separate low-line

comparator compares V_CCto 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)

Ord e rin g In fo rm a t io n

4) Watchdog fault output: Assertion of WDO if the watch-

dog input is not toggled within a preset timeout

period.

PART**

TEMP. RANGE

0°C to +70°C

PIN-PACKAGE

16 Plastic DIP

16 Narrow SO

Dice*

MAX792_CPE

MAX792_CSE

MAX792_C/D

5) Puls e d wa tc hd og outp ut: Ad va nc e wa rning 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.

6) Write protection of CMOS RAM, EEPROM, or other

memory devices.

**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.

The MAX792 and MAX820 are identical, except the

MAX820 guarantees higher low-line and reset threshold

accuracy (±2%).

SUFFIX

RESET THRESHOLD (V)

Ap p lic a t io n s

Computers

Controllers

4.62

4.37

3.06

2.91

2.61

Intelligent Instruments

Critical µP Power Monitoring

Typ ic a l Op e ra t in g Circ u it

0.1µF

CE OUT

RESET IN/INT

µP

RAM

MAX792

ADDRESS

DECODER

CE IN

OVO

LLIN/

REFOUT

A0-A15

LOW LINE

RESET

NMI

OVI

RESET

SWT

GND

________________________________________________________________ Maxim Integrated Products

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

12 3 4 5 6 7...16

中文翻译

下载PDF

与MAX820_EPE相关器件

型号	品牌	获取价格	描述	数据表
MAX820_ESE	MAXIM	获取价格	Microprocessor and Non-Volatile Memory Supervisory Circuits
MAX820_MJE	MAXIM	获取价格	Microprocessor and Non-Volatile Memory Supervisory Circuits
MAX820CPE	MAXIM	获取价格	Microprocessor and Nonvolatile Memory Supervisory Circuits
MAX820CSE	MAXIM	获取价格	Microprocessor and Nonvolatile Memory Supervisory Circuits
MAX820EJE	MAXIM	获取价格	Microprocessor and Nonvolatile Memory Supervisory Circuits
MAX820EPE	MAXIM	获取价格	Microprocessor and Nonvolatile Memory Supervisory Circuits
MAX820ESE	MAXIM	获取价格	Microprocessor and Nonvolatile Memory Supervisory Circuits
MAX820LC/D	MAXIM	获取价格	Power Supply Supervisor
MAX820LCPE	MAXIM	获取价格	Power Supply Supervisor
MAX820LCPE+	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP16, LEAD FREE, PLASTIC, DIP-16

与MAX820_EPE相关文章

塔塔电子与力积电达成技术转让协议，携手建设印度首座晶圆厂
2024-09-29

9
英特尔震撼发布：128核心256线程的至强6性能核处理器
2024-09-29

8
SK海力士量产12层HBM3E，容量高达36GB
2024-09-27

12
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
2024-09-27

19

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX820_EPE

MAX820_EPE 数据手册

与MAX820_EPE相关器件

与MAX820_EPE相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX820_EPE

MAX820_EPE 数据手册

与MAX820_EPE相关器件

与MAX820_EPE相关文章

您还可以找

您在本页遇到什么问题？