ADM8697ARU-REEL

ADM8697ARU-REEL Datasheet

ADM8696/ADM8697

Part	Datasheet
ADM8697ARU-REEL	ADM8697ARU-REEL (pdf)

Related Parts	Information
ADM8696ARU-REEL	ADM8696ARU-REEL
ADM8697ARU	ADM8697ARU

PDF Datasheet Preview
Microprocessor Supervisory Circuits ADM8696/ADM8697 FEATURES Upgrade for ADM696/ADM697, MAX696/MAX697 Specified Over Temperature Adjustable Low Line Voltage Monitor Power OK/Reset Time Delay Reset Assertion Down to 1 V VCC Watchdog ms, s, or Adjustable Low Switch On Resistance Normal, 7 in Backup 400 nA Standby Current Automatic Battery Backup Switching ADM8696 Fast On-Board Gating of Chip Enable Signals ADM8697 Voltage Monitor for Power Fail or Low Battery Warning Also Available in TSSOP Package Qualified for Automotive Applications APPLICATIONS Microprocessor Systems Computers Controllers Intelligent Instruments Automotive Systems Critical µP Power Monitoring GENERAL DESCRIPTION The ADM8696/ADM8697 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. The ADM8696/ADM8697 are available in 16-pin DIP and small outline packages including TSSOP and provide the following functions: 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 VCC as low as 1 V. A Reset pulse if the optional watchdog timer has not been toggled within specified time. Separate watchdog timeout and low line status outputs. Adjustable reset and watchdog timeout periods. A V threshold detector for power fail warning, low battery detection or to monitor a power supply other than VCC. Battery backup switching for CMOS RAM, CMOS microprocessor or other low power logic ADM8696 . Write protection of CMOS RAM or EEPROM ADM8697 . FUNCTIONAL BLOCK DIAGRAMS VBATT BATT ON VCC LLIN VOUT LOW LINE RESET GENERATOR OSC IN OSC SEL WATCHDOG INPUT WDI POWER FAIL INPUT PFI TIMEBASE FOR RESET AND WATCHDOG WATCHDOG TIMER WATCHDOG TRANSITION DETECTOR ADM8696 1.3V RESET WATCHDOG OUTPUT WDO POWER FAIL OUTPUT PFO CEIN LLIN OSC IN OSC SEL WATCHDOG INPUT WDI POWER FAIL INPUT PFI RESET GENERATOR TIMEBASE FOR RESET AND WATCHDOG WATCHDOG TRANSITION DETECTOR WATCHDOG TIMER ADM8697 1.3V CEOUT LOW LINE RESET WATCHDOG OUTPUT WDO POWER FAIL OUTPUT PFO ORDERING GUIDE Model1,2 ADM8696AN ADM8696ANZ ADM8696ARW ADM8969ARW-REEL ADM8696ARWZ-REEL ADM8696ARU-REEL ADM8697AN ADM8697ANZ ADM8697ARW-REEL ADM8697ARWZ ADM8697ARU-REEL Notes Temperature Range −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C 1 Z = RoHS Compliant Part. 2 W = Qualified for Automotive Applications. 3 Contact sales for availability and quotation. Package Description 16-Lead Plastic Dual In-Line Package [PDIP] 16-Lead Plastic Dual In-Line Package [PDIP] 16-Lead Standard Small Outline Package [SOIC_W] 16-Lead Standard Small Outline Package [SOIC_W] 16-Lead Standard Small Outline Package [SOIC_W] 16-Lead Standard Small Outline Package [SOIC_W] 16-Lead Thin Shrink Small Outline Package [TSSOP] 16-Lead Thin Shrink Small Outline Package [TSSOP] 16-Lead Plastic Dual In-Line Package [PDIP] 16-Lead Plastic Dual In-Line Package [PDIP] 16-Lead Standard Small Outline Package [SOIC_W] 16-Lead Standard Small Outline Package [SOIC_W] 16-Lead Standard Small Outline Package [SOIC_W] 16-Lead Thin Shrink Small Outline Package [TSSOP] 16-Lead Thin Shrink Small Outline Package [TSSOP] Package Option N-16 N-16 RW-16 RW-16 RW-16 RW-16 RU-16 RU-16 N-16 N-16 RW-16 RW-16 RW-16 RU-16 RU-16 AUTOMOTIVE PRODUCTS ADM8696/ADM8697 1997-2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D09139-0-6/10 A

PDF Datasheet Preview

Microprocessor Supervisory Circuits

ADM8696/ADM8697

FEATURES Upgrade for ADM696/ADM697, MAX696/MAX697 Specified Over Temperature Adjustable Low Line Voltage Monitor Power OK/Reset Time Delay Reset Assertion Down to 1 V VCC Watchdog ms, s, or Adjustable Low Switch On Resistance Normal, 7 in Backup 400 nA Standby Current Automatic Battery Backup Switching ADM8696 Fast On-Board Gating of Chip Enable Signals ADM8697 Voltage Monitor for Power Fail or Low Battery Warning Also Available in TSSOP Package Qualified for Automotive Applications

APPLICATIONS Microprocessor Systems Computers Controllers Intelligent Instruments Automotive Systems Critical µP Power Monitoring

GENERAL DESCRIPTION The ADM8696/ADM8697 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.

The ADM8696/ADM8697 are available in 16-pin DIP and small outline packages including TSSOP and provide the following functions:

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 VCC as low as 1 V.

A Reset pulse if the optional watchdog timer has not been toggled within specified time.

Separate watchdog timeout and low line status outputs.

Adjustable reset and watchdog timeout periods.

A V threshold detector for power fail warning, low battery detection or to monitor a power supply other than VCC.

Battery backup switching for CMOS RAM, CMOS microprocessor or other low power logic ADM8696 .

Write protection of CMOS RAM or EEPROM ADM8697 .

FUNCTIONAL BLOCK DIAGRAMS

VBATT

BATT ON

VCC LLIN

VOUT LOW LINE

RESET GENERATOR

OSC IN OSC SEL

WATCHDOG INPUT WDI POWER FAIL INPUT PFI

TIMEBASE FOR RESET AND WATCHDOG

WATCHDOG TIMER

WATCHDOG TRANSITION DETECTOR

ADM8696
1.3V

RESET

WATCHDOG OUTPUT WDO

POWER FAIL OUTPUT PFO

CEIN LLIN

OSC IN OSC SEL

WATCHDOG INPUT WDI POWER FAIL INPUT PFI

RESET GENERATOR

TIMEBASE FOR RESET AND WATCHDOG

WATCHDOG TRANSITION DETECTOR

WATCHDOG TIMER

ADM8697
1.3V

CEOUT LOW LINE RESET

WATCHDOG OUTPUT WDO

POWER FAIL OUTPUT PFO
ORDERING GUIDE

Model1,2 ADM8696AN ADM8696ANZ ADM8696ARW ADM8969ARW-REEL ADM8696ARWZ-REEL ADM8696ARU-REEL ADM8697AN ADM8697ANZ ADM8697ARW-REEL ADM8697ARWZ ADM8697ARU-REEL

Notes

Temperature Range −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C −40°C to + 85°C
1 Z = RoHS Compliant Part. 2 W = Qualified for Automotive Applications. 3 Contact sales for availability and quotation.

Package Description 16-Lead Plastic Dual In-Line Package [PDIP] 16-Lead Plastic Dual In-Line Package [PDIP] 16-Lead Standard Small Outline Package [SOIC_W] 16-Lead Standard Small Outline Package [SOIC_W] 16-Lead Standard Small Outline Package [SOIC_W] 16-Lead Standard Small Outline Package [SOIC_W] 16-Lead Thin Shrink Small Outline Package [TSSOP] 16-Lead Thin Shrink Small Outline Package [TSSOP] 16-Lead Plastic Dual In-Line Package [PDIP] 16-Lead Plastic Dual In-Line Package [PDIP] 16-Lead Standard Small Outline Package [SOIC_W] 16-Lead Standard Small Outline Package [SOIC_W] 16-Lead Standard Small Outline Package [SOIC_W] 16-Lead Thin Shrink Small Outline Package [TSSOP] 16-Lead Thin Shrink Small Outline Package [TSSOP]

Package Option N-16 N-16 RW-16 RW-16 RW-16 RW-16 RU-16 RU-16 N-16 N-16 RW-16 RW-16 RW-16 RU-16 RU-16

AUTOMOTIVE PRODUCTS
ADM8696/ADM8697
1997-2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.

D09139-0-6/10 A

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ADM8697ARU-REEL Datasheet file may be downloaded here without warranties.

Datasheet ID: ADM8697ARU-REEL 517842