MAX696CWE+T Maxim Integrated Products, MAX696CWE+T Datasheet
MAX696CWE+T
Specifications of MAX696CWE+T
Related parts for MAX696CWE+T
MAX696CWE+T Summary of contents
Page 1
... Critical µP Power Monitoring Typical Operating Circuit appears at end of data sheet. Pin Configurations continued at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ♦ Adjustable Low-Line Monitor and Power-Down Reset ♦ ...
Page 2
Microprocessor Supervisory Circuits ABSOLUTE MAXIMUM RATINGS Terminal Voltage (with respect to GND) V .......................................................................-0. ....................................................................-0.3V to +6V BATT All Other Inputs (Note 1).......................-0. Input Current V CC............................................................................................. V BATT............................................................................................ GND .............................................................................................. Output Current V ...
Page 3
Microprocessor Supervisory Circuits ELECTRICAL CHARACTERISTICS (continued full operating range 2.8V BATT PARAMETER Reset Timeout Delay Figure 6, OSC SEL HIGH, V Long period, V Watchdog Timeout Period, Internal Oscillator Short period, V Long period ...
Page 4
Microprocessor Supervisory Circuits (T = +25°C, unless otherwise noted _______________________________________________________________________________________ Typical Operating Characteristics MAX696 SUPPLY CURRENT AS A FUNCTION OF SUPPLY VOLTAGE 1.50 1.50 1.25 1.25 V MODE CC 1.00 1.00 0.75 0.75 0.50 0.50 BATTERY MODE T ...
Page 5
Microprocessor Supervisory Circuits PIN NAME MAX696 MAX697 1 — V BATT 2 — V OUT GND 5 — BATT ON LOW LINE OSC OSC SEL 9 9 ...
Page 6
Microprocessor Supervisory Circuits PIN NAME MAX696 MAX697 — 1 TEST CE OUT — — INPUT 0.1µF 3V BATTERY NO CONNECTION RESET Figure 1. MAX696 Typical Application Typical Applications A typical connection for the ...
Page 7
Microprocessor Supervisory Circuits low for 50ms after LL rises above 1.3V. This prevents IN repeated toggling of RESET even if the V out and recovers with each power line cycle. The crystal oscillator normally used to generate the clock for ...
Page 8
Microprocessor Supervisory Circuits The MAX697 is nearly identical to the MAX696. The MAX697 lacks the battery-backup feature does not have the BATT ON pins. This BATT OUT allows the MAX697 to consume less ...
Page 9
Microprocessor Supervisory Circuits The MAX696 operates with battery voltages from 2.0V to 4.25V. The battery voltage should not be within 0. switchover may occur. High-value capaci- CC tors, either standard electrolytic or the farad-size dou- ble-layer ...
Page 10
Microprocessor Supervisory Circuits LL IN RESET OUTPUT LOW LINE OUTPUT (MAX697 (MAX697) CE OUT Figure 5. MAX697 Reset Timing CE Gating and RAM Write Protection The MAX697 uses two pins to control the CE or WRITE is > ...
Page 11
Microprocessor Supervisory Circuits WATCHDOG INPUT V 2. 1.0V TRANSITION DETECTOR FOR EACH TRANSITION LOW LINE ( < 1.3V) IN Figure 6. Watchdog Timer Block Diagram becomes effective following the first transition of WDI ...
Page 12
Microprocessor Supervisory Circuits Applications Information Adding Hysteresis to the Power-Fail Since the power-fail comparator circuit is noninverting, hysteresis can be added by connecting a resistor between the PFO output and the PFI input as shown in Figure 7. When PFO ...
Page 13
Microprocessor Supervisory Circuits Table 1. MAX696 and MAX697 Reset Pulse Width and Watchdog Timeout Selections (Notes 1, 2) OSC SEL OSC IN (Note 3) Low External Clock Input 1024 clocks Low External Capacitor High/Floating Low High/Floating Floating Note 1: When ...
Page 14
Microprocessor Supervisory Circuits -5V RESET Ordering Information PART TEMP RANGE MAX697C/D 0°C to +70°C MAX697CPE 0°C to +70°C MAX697CWE 0°C to +70°C MAX697EPE -40°C to +85°C MAX697EJE -40°C to +85°C MAX697EWE -40°C to +85°C MAX697MJE -55°C to +125°C Devices in ...
Page 15
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15 © 2005 Maxim Integrated Products For the latest package outline information www ...