Datasheet

STM690A/692A/703/704/802/805/817/818/819 DC and AC parameters
Doc ID 10522 Rev 10 35/43
V
OH
Output high voltage
(RST
, RST)
I
SOURCE
= 1 mA
V
CC
= V
RST
(max)
2.4 V
Output high voltage
(E
CON
)
V
CC
= V
RST
(max),
I
OUT
= 1.6 mA, E= V
CC
0.8V
CC
V
Output high voltage
(PFO
)
I
SOURCE
= 75 µA,
V
CC
= V
RST
(max)
0.8V
CC
V
V
OH
Output high voltage
I
SOURCE
= 4 µA, V
CC
= 1.1 V,
V
BAT
= V
CC
, T
A
= 0°C to 85°C
0.8 V
I
SOURCE
= 4 µA, V
CC
= 1.2 V,
V
BAT
= V
CC
0.9 V
V
OHB
V
OH
battery backup
(RST
, RST)
I
SOURCE
= 100 µA,
V
CC
= 0, V
BAT
= 2.8 V
0.8V
BAT
V
V
OH
battery backup
(E
CON
)
I
SOURCE
= 75 µA,
V
CC
= 0, V
BAT
= 2.8 V
0.8V
BAT
V
Power-fail comparator (NOT available on STM818)
V
PFI
PFI input threshold
PFI falling
(V
CC
= 5 V)
All other
versions
1.20 1.25 1.30 V
STM802 1.225 1.250 1.275 V
t
PFD
PFI to PFO propagation
delay
2µs
I
SC
PFO output short to GND
current
V
CC
= 5 V, V
PFO
= 0 V 0.1 0.75 2.0 mA
Battery switchover
VSO
Battery backup
switchover voltage
(7)(8)
(V
CC
< V
BAT
&
V
CC
< V
RST
)
Power-down
V
RST
> V
BAT
V
BAT
V
V
RST
< V
BAT
V
RST
V
Power-up
V
RST
> V
BAT
V
BAT
V
V
RST
< V
BAT
V
RST
V
Hysteresis 40 mV
Reset thresholds
V
RST
Reset threshold
(9)
STM690A/703, STM8XXL 4.50 4.65 4.75 V
STM692A/704, STM8XXM 4.25 4.40 4.50 V
Reset threshold
hysteresis
25 mV
V
CC
to RST delay (from
V
RST
, V
CC
falling at
10 V/ms)
STM817/818/819 100 µs
Table 7. DC and AC characteristics (continued)
Sym
Alter-
native
Description Test condition
(1)
Min Typ Max Unit