str712 STMicroelectronics, str712 Datasheet - Page 55

• Manufacturer Part Number: str712
• Description: 144/64-pin Arm7tdmi Mcu With Up To 256kb Flash, 64kb Ram And Emi
• Manufacturer: STMicroelectronics

STR71xF
RSTIN pin
The RSTIN pin input driver is CMOS. A permanent pull-up is present which is the same as
as R
Subject to general operating conditions for V
Table 31.
Notes:
1. Data based on characterization results, not tested in production.
2) Data guaranteed by design, not tested in production.
Figure 24. Recommended RSTIN pin protection.
Notes:
1. The R
2. The reset network protects the device against parasitic resets.
3. The user must ensure that the level on the RSTIN pin can go below the V
V
V
V
V
NF(RSTINn)
Symbol
IH(RSTINn)
IL(RSTINn)
F(RSTINn)
characteristics described in
Table
Required
PU
EXTERNAL
CIRCUIT
RESET
(seeTable 29 on page
PU
31. Otherwise the reset will not be taken into account internally.
pull-up equivalent resistor is based on a resistive transistor (corresponding I
Recommended
RESET pin characteristics
RSTIN Input low level voltage
RSTIN Input high level voltage
RSTIN Input filtered pulse
RSTIN Input not filtered pulse
V
33
0.01µF
0.01µF
Parameter
Figure
V
50)
33
4.7kΩ
18).
RSTIN
2)
2)
1)
V
1)
33
R
33
PU
Filter
and T
Conditions
A
1)
unless otherwise specified.
INTERNAL RESET
IL(RSTINn)
Min
1.2
2
Electrical parameters
max. level specified in
Typ
PU
current
1)
STR7X
Max
500
0.8
Unit
55/78
ns
µs
V