ST7DALIF2 STMicroelectronics, ST7DALIF2 Datasheet - Page 143

• Manufacturer Part Number: ST7DALIF2
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI
• Manufacturer: STMicroelectronics

Specifications of ST7DALIF2

• 8 Kbytes Single Voltage Flash Program Memory With Read-out Protection, In-circuit Programming And In-application Programming (icp And Iap). 10k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55°C.
• 256 Bytes Data Eeprom With Read-out Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55°C.
• Clock Sources: Internal 1% RC oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Wait and Slow, Auto Wake Up From Halt

ST7DALIF2
20.8
20.8.1
Table 85.
1.
2.
3.
4.
Caution:
Note:
Symbol
t
t
t
r(IO)out
f(IO)out
w(IT)in
Data based on characterization results, not tested in production.
Configuration not recommended, all unused pins must be kept at a fixed voltage: using the output mode of the I/O for example or an external
pull-up or pull-down resistor (see
characteristics, not tested in production. This value depends on V
The R
To generate an external interrupt, a minimum pulse width has to be applied on an I/O port pin configured as an external interrupt source.
V
R
C
V
V
I
I
hys
PU
S
IH
L
IO
IL
PU
pull-up equivalent resistor is based on a resistive transistor (corresponding I
Input low level voltage
Input high level voltage
Schmitt trigger voltage
hysteresis
Input leakage current
Static current consumption
induced by each floating input
pin
Weak pull-up equivalent resistor
I/O pin capacitance
Output high to low level fall time
Output low to high level rise time
(1)
External interrupt pulse time
I/O port pin characteristics
General characteristics
Subject to general operating conditions for V
General characteristics
Figure 70. Two typical applications with unused I/O pin
During normal operation the ICCCLK pin must be pulled-up, internally or externally (external
pull-up of 10k mandatory in noisy environment. This is to avoid entering ICC mode
unexpectedly during a reset.
I/O can be left unconnected if it is configured as output (0 or 1) by the software. This has the
advantage of greater EMC robustness and lower cost.
(2)
(1)
Parameter
Figure
V
DD
10kΩ
70). Static peak current value taken at a fixed V
(4)
UNUSED I/O PORT
(3)
(1)
ST7XXX
V
Floating input mode
V
V
C
Between 10% and
90%
SS
IN
SS
L
=50 pF
=
Conditions
≤
V
DD
IN
V
V
and temperature values.
≤
DD
DD
V
DD
=5 V
=3 V
DD
, f
OSC
PU
V
IN
10kΩ
0.7xV
current characteristics described in
, and T
SS
value, based on design simulation and technology
Min
50
1
- 0.3
DD
UNUSED I/O PORT
A
unless otherwise specified.
ST7XXX
Electrical characteristics
Typ
400
400
120
160
25
25
5
V
0.3xV
DD
Max
250
±1
Figure
+ 0.3
DD
71).
143/171
t
Unit
mV
CPU
kΩ
μA
pF
ns
V