X40015

Features:

• Dual voltage detection and reset assertion
-Standard reset threshold settings See Selection table on page 2.
-Adjust low voltage reset threshold voltages using special programming sequence
-Reset signal valid to V_CC = 1V
-Monitor three voltages or detect power fail
• Independent Core Voltage Monitor (V2MON)
• Fault detection register
• Selectable power on reset timeout (0.05s,0.2s, 0.4s, 0.8s)
• Selectable watchdog timer interval (25ms, 200ms,1.4s, off)
• Low power CMOS
-25A typical standby current, watchdog on
-6A typical standby current, watchdog off
• 400kHz 2-wire interface
• 2.7V to 5.5V power supply operation
• Available packages
-8-lead SOIC, TSSOP




Application

• Communication Equipment
-Routers, Hubs, Switches
-Disk Arrays, Network Storage
• Industrial Systems
-Process Control
-Intelligent Instrumentation
• Computer Systems
-Computers
-Network Servers

Pinout






Specifications

Temperature under bias ................... 65°C to +135°C
Storage temperature ........................ 65°C to +150°C
Voltage on any pin with
respect to V_SS......................................1.0V to +7V
D.C. output current .....................................................5mA
Lead temperature (soldering, 10 seconds)............ 300°C




Description

The X40010/11/14/X40015 combines power-on reset control, watchdog timer, supply voltage supervision, and secondary voltage supervision, in one package. This combination lowers system cost, reduces board space requirements, and increases reliability. Applying voltage to VCC activates the power on reset circuit which holds RESET/RESET active for a period of time. This allows the power supply and system oscillator to stabilize before the processor can execute code.

The X40010/11/14/X40015 combines power-on reset control,watchdog timer, supply voltage supervision, and secondary voltage supervision, in one package. This combination lowers system cost, reduces board space requirements, and increases reliability.

Applying voltage to V_CC activates the power on reset circuit which holds RESET/RESET active for a period of time. This allows the power supply and system oscillator to stabilize before the processor can execute code.

Low V_CC detection circuitry protects the user's system from low voltage conditions, resetting the system when V_CC falls below the minimum V_TRIP1 point. RESET/RESET is active until V_CC returns to proper operating level and stabilizes. A second voltage monitor circuit tracks the unregulated supply to provide a power fail warning or monitors different power supply voltage.

Three common low voltage combinations are available,however, Xicor's unique circuits allows the