M5295AL/AP/AFP

REJ03D0780-0200 Rev.2.00 Jun 15, 2007

Page 8 of 12

Application Example

Clock

MCU/MPU

RST1

(RESET)

RST2

(HOLD)

123456

7

8

M5295A

Figure 8 Application Example

Notice for Use

1. When malfunction occurs due to noise or order related trouble, connect capacitance of approximately 1000 pF

between pin (5) and GND as well as pin (8) and GND to stabilize operation.

2. To adjust detection voltage, add resistance of 15 k

Ω or less to both V

voltage to no less than 3 V.)

110

µs ≤ t

8.3

µs ≤ t

10 k

Ω ≤ R

4. Input clock pulses to pin (1) via capacitor. To determine capacitance, refer to “Relationship between input pulse

width and input capacitance Cin”.

123456

7

8

M5295A

RESET output

3.5V

Backup power supply

Note: Set backup switching voltage to be more than or equal to backup supply voltage.

To System

10k

Ω

× 1.24 (V)

Figure 9 Example of Backup Circuit with M5295AL