ADM696AR

更新时间： 2024-11-30 22:50:07

品牌	Logo	应用领域
亚德诺 - ADI		微处理器监控
页数	文件大小	规格书
12页	410K
描述
Microprocessor Supervisory Circuits

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ADM696AR 数据手册

Microprocessor

Supervisory Circuits

ADM696/ADM697

FUNCTIONAL BLOCK DIAGRAMS

FEATURES

Superior Upgrade for MAX696/MAX697

Specified Over Temperature

BATT ON

Adjustable Low Line Voltage Monitor

Power OK/Reset Time Delay

BATT

Reset Assertion Down to 1 V V_CC

Watchdog Timer—100 ms, 1.6 s, or Adjustable

Low Switch On Resistance

OUT

1.5 ⍀ Normal, 20 ⍀ in Backup

600 nA Standby Current

Automatic Battery Backup Switching (ADM696)

Fast On-Board Gating of Chip Enable Signals (ADM697)

Voltage Monitor for Power Fail or Low Battery Warning

LOW LINE

RESET

RESET GENERATOR

RESET

OSC IN

TIMEBASE FOR RESET

AND WATCHDOG

APPLICATIONS

Microprocessor Systems

Computers

OSC SEL

WATCHDOG

TIMER

WATCHDOG

OUTPUT (WDO)

WATCHDOG

INPUT (WDI)

WATCHDOG

TRANSITION DETECTOR

Controllers

Intelligent Instruments

Automotive Systems

Critical ␮P Power Monitoring

ADM696

POWER FAIL

INPUT (PFI)

POWER FAIL

OUTPUT (PFO)

1.3V

GENERAL DESCRIPTION

The ADM696/ADM697 supervisory circuits offer complete

single chip solutions for power supply monitoring and battery

control functions in microprocessor systems. These functions

include µP reset, backup-battery switchover, watchdog timer,

CMOS RAM write protection, and power failure warning.

OUT

LOW LINE

RESET

RESET GENERATOR

The ADM696/ADM697 are available in 16-pin DIP and small

outline packages and provide the following functions:

RESET

OSC IN

TIMEBASE FOR RESET

AND WATCHDOG

1. Power-On Reset output during power-up, power-down and

brownout conditions. The RESET voltage threshold is

adjustable using an external voltage divider. The RESET

output remains operational with V_CCas low as 1 V.

OSC SEL

WATCHDOG

TIMER

WATCHDOG

OUTPUT (WDO)

WATCHDOG

INPUT (WDI)

WATCHDOG

TRANSITION DETECTOR

2. A Reset pulse if the optional watchdog timer has not been

toggled within specified time.

ADM697

POWER FAIL

INPUT (PFI)

POWER FAIL

OUTPUT (PFO)

1.3V

3. Separate watchdog time-out and low line status outputs.

4. Adjustable reset and watchdog timeout periods.

5. A 1.3 V threshold detector for power fail warning, low bat-

The ADM696/ADM697 is fabricated using an advanced epitaxial

CMOS process combining low power consumption (5 mW),

extremely fast Chip Enable gating (5 ns) and high reliability.

RESET assertion is guaranteed with V_CCas low as 1 V. In

addition, the power switching circuitry is designed for minimal

voltage drop thereby permitting increased output current drive

of up to 100 mA without the need for an external pass transistor.

tery detection, or to monitor a power supply other than V_CC

6. Battery backup switching for CMOS RAM, CMOS micro-

processor or other low power logic (ADM696).

7. Write protection of CMOS RAM or EEPROM (ADM697).

REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 617/329-4700

Fax: 617/326-8703

12 3 4 5 6 7...12

中文翻译

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ADM696AR 替代型号

型号	品牌	替代类型	描述	数据表
ADM696ARZ	ADI	类似代替	Microprocessor Supervisory Circuits
ADM696SQ	ADI	类似代替	Microprocessor Supervisory Circuits

与ADM696AR相关器件

型号	品牌	获取价格	描述	数据表
ADM696AR-REEL	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO16, SO-16, Power Management Circuit
ADM696AR-REEL	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO16, SO-16
ADM696ARZ	ADI	获取价格	Microprocessor Supervisory Circuits
ADM696ARZ-REEL	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO16, ROHS COMPLIANT, SOP-16
ADM696SQ	ADI	获取价格	Microprocessor Supervisory Circuits
ADM697	ADI	获取价格	Microprocessor Supervisory Circuits
ADM697_15	ADI	获取价格	Microprocessor Supervisory Circuits
ADM697AN	ADI	获取价格	Microprocessor Supervisory Circuits
ADM697ANZ	ADI	获取价格	暂无描述
ADM697ANZ	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP16, PLASTIC, DIP-16

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