fm3204 Ramtron Corporation, fm3204 Datasheet - Page 19

• Manufacturer Part Number: fm3204
• Description: Integrated Processor Companion With Memory
• Manufacturer: Ramtron Corporation

Supervisor Timing
Notes
1
2
3
/RST Timing
Rev. 2.4
Mar. 2008
t
t
t
t
t
t
f
Symbol
VDD
RPU
RNR
VR
VF
WDP
WDOG
CNT
VTP
VRST
RST
This parameter is characterized but not tested.
Slope measured at any point on V
t
DOG
is the programmed time in register 0Ah, V
/RST Active (low) after V
V
V
V
Pulse Width of /RST for Watchdog Reset
Timeout of Watchdog
Frequency of Event Counters
DD
DD
DD
< V
Rise Time
Fall Time
(T
TP
A
t
= -40 C to + 85 C, V
Noise Immunity
RNR
DD
Parameter
waveform.
DD
>V
DD
TP
DD
= 2.7V to 5.5V)
> V
TP
and t
RPU
satisfied.
t
RPU
Min
t
100
100
100
DOG
10
50
0
2*t
Max
200
200
25
10
-
-
DOG
FM3204/16/64/256
Units
MHz
ms
ms
ms
s/V
s/V
s
Page 19 of 22
Notes
1,2
1,2
1
3