Transport Nodes, Access Nodes, Add/Drop Multiplexers, and Digital Cross-Connects



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Maxim > Solutions > Transport Nodes, Access Nodes, Add/Drop Multiplexers, and Digital Cross-Connects

Battery-Backup

DATA SHEETS

Display

Title / Parts

Key Advantages

QV PDF

I²C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
DS1374, DS1374C, DS1374U

Elapsed Time Counter Provides Power-On Reset, Watchdog or Alarm, and Square Wave

QV PDF

3.3V/5V MicroManager
DS1836

QV PDF

PC Power Fail and Reset Controller
DS1632

Key Specifications: Battery Backup Circuits

Part Number

Reset Threshold Range (V)

Active-Low Reset Output

Active-High Reset Output

Features

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

DS1632

3.3 to 5.5

Open Drain

Push-Pull

•

Low Line

•	Manual Reset

•	Power Fail Comparator

•

Xosl Sel

PDIP/16
SOIC/16

0 to +70

See All Battery Backup Circuits (89)

Key Specifications: Timekeeping & Real-Time Clocks

Part Number

Functions

Time Format (hh = sec/100)

Date Format

Interface

Supply Voltage (V)

Time- keeping Current (typ) (nA)

C_L, Load Capacitance (pF)

Memory Type

Number of Time of Day Alarms

Features

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

DS1374

•	Elapsed Time Counter

•	Watchdog Timekeeper

Binary

I²C

1.8
3
3.3
5

400

None

•

µP Reset

•	Periodic Interrupt

•	SOIC Package with Integrated Crystal

•	Trickle Charger

SOIC/16
uSOP/10

-40 to +85

See All Timekeeping & Real-Time Clocks (86)