sp690acp Exar Corporation, sp690acp Datasheet - Page 7

• Manufacturer Part Number: sp690acp
• Description: Low Power Microprocessor Supervisory With Battery Switch-over
• Manufacturer: Exar Corporation

Figure 5A. SP690A RESET Response Time
Figure 6A. SP805L RESET Response Time
Figure 7A. Power-Fail Comparator Response Time (FALL)
Date: 11/29/04
+5V
+4V
+5V
+1.3V
+1.2V
0V
+5V
+4V
+4V
0V
5V
0V
PFO
SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over
PFI
RESET
V
CC
2µs/div
2µs/div
500ns/div
RESET
V
CC
V
V
CC
BATT
= 5V
= 0V
7
Figure 5B. Circuit for the SP690A/802L RESET
Response Time
Figure 6B. Circuit for the SP805 RESET
Response Time
Figure 7B. Circuit for the Power-Fail Comparator
Response Time (FALL)
T
V
V
A
CC
CC
GND
= +25 C
V
CC
= +5V
+1.25V
V
PFI
CC
GND
V
RESET
V
CC
BATT
T
A
= +25 C
RESET
© Copyright 2004 Sipex Corporation
PFO
+5V
330pF
30pF
10KΩ
1KΩ
30pF
10KΩ