SMS64
Preliminary
PROGRAMMABLE AC SPECIFICATIONS
NOTE 1
(Over recommended operating conditions, unless otherwise noted. All voltages are relative to GND.)
Symbol
Description
Programmable delay from VM P
VIT
to PUP power-on (Fast)
Min. Typ. Max. Unit
1.56
3.125
6.25
12.5
25
50
100
200
1.56
3.125
6.25
12.5
25
50
100
200
Off
0.4
0.8
1.6
3.2
6.4
Off
1.6
3.2
6.4
25
50
100
200
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
s
s
s
s
s
s
s
s
ms
ms
ms
ms
t
DPON
Programmable delay from VM P
VIT
to PUP power-on (Slow)
Programmable delay from VM PVIT to PUP power-off (Fast)
t
DPOFF
Programmable delay from VM PVIT to PUP power-off (Slow)
t
WDTO
Programmable Watchdog Timer Time-out Periods
t
LDTO
Programmable Longdog Timer Time-out Periods
t
PRTO
Programmable Reset Time-out Periods
Notes: 1/ Refer to the timing diagrams in Figures 5, 9 and 10.
Summit Microelectronics, Inc
2060 2.22 10/09/03
8
SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
