ASM813L

ASM705, ASM706, ASM707, ASM708, ASM813L Low Power mP Supervisor Circuits Description The ASM705 / 706 / 707 / 708 and ASM813L are cost effective CMOS supervisor circuits that monitor power−supply and battery voltage level, and mP/mC operation. The family offers several functional options. Each device generates a reset signal during power−up, power−down and during brownout conditions. A reset is generated when the supply drops below 4.65 V (ASM705/707/813L) or 4.40 V (ASM706/708). For 3 V power supply applications, refer to the ASM705P/R/S/T data sheet. In addition, the ASM705/706/813L feature a 1.6 second watchdog timer. The ASM707/708 have both active−HIGH and active−LOW reset outputs but no watchdog function. The ASM813L has the same pin−out and functions as the ASM705 but has an active−HIGH reset output. A versatile power−fail circuit has a 1.25 V threshold, useful in low battery detection and for monitoring non−5 V supplies. All devices have a manual reset (MR) input. The watchdog timer output will trigger a reset if connected to MR. All devices are available in 8−pin DIP, SO and MicroSO packages. Features Precision Power Supply Monitor 4.65 V Threshold (ASM705/707/813L) 4.40 V Threshold (ASM706/708) Debounced Manual Reset Input Voltage Monitor 1.25 V Threshold Battery Monitor / Auxiliary Supply Monitor Watchdog Timer (ASM705/706/813L) 200 ms Reset Pulse Width Active HIGH Reset Output (ASM707/708/813L) MicroSO Package Applications Computers and Embedded C...