M5295AP - Renesas

M5295AP Watchdog Timer

M5295A is a semiconductor integrated circuit which is designed for system reset to detect +5 V power supply. This IC keeps the operation microcomputer watching. When the system is abnormal, it generates reset output until the system returns to normal states of the system. It is possible to vary the two detective voltage by connecting the resistor, so it is s.

Features

• Watchdog timer
• Power on reset timer
• Low circuit current: 0.8 mA (Typ, VCC = 5 V)
• Wide supply voltage range: VCC(max) = 15 V Application
• Microcomputer system Recommended Operating Condition
• Supply voltage range: 4 V to 15 V
• Rated supply voltage: 5 V Block Diagram F.F F.F
  – +
  – + W.D.T F.F 49.6k
  – + 20.4k 51.2k +
  – 18.8k 1.24V Reference voltage generator circuit 20k 30k 1 WD 2 TC 3 RST1 4 GND 5 ADJ1 678 VCC RST2 ADJ2 REJ03D0780-0200 Rev.2.00 Jun 15, 2007 Page 1 of 12 M5295AL/AP/AFP Pin Arrangement M5295AL 8 ADJ2 7 RST2 6 VCC 5 ADJ1 4 GND 3 RST1 2 TC 1 WD (Top view.