ST7FOXK1 STMicroelectronics, ST7FOXK1 Datasheet - Page 204

• Manufacturer Part Number: ST7FOXK1
• Description: Low cost flash 8bit micro
• Manufacturer: STMicroelectronics

Specifications of ST7FOXK1

• 4 To 8 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection In-circuit Programming And In-application Programming (icp And Iap) Endurance: 1K write/erase cycles guaranteed Data retention
• Clock Sources: Internal trimmable 8 MHz RC oscillator, auto wakeup internal low power - low frequency oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Auto Wakeup from Halt, Wait and Slow
• A/d Converter: up to 10 input channels

Electrical characteristics
12.9
12.9.1
Table 87.
1. Data based on validation/design results.
2. Configuration not recommended, all unused pins must be kept at a fixed voltage: using the output mode of the I/O for
3. The R
4. To generate an external interrupt, a minimum pulse width has to be applied on an I/O port pin configured as an external
204/226
Symbol
t
t
t
r(IO)out
f(IO)out
w(IT)in
V
R
example or an external pull-up or pull-down resistor (see
based on design simulation and technology characteristics, not tested in production. This value depends on V
temperature values.
interrupt source.
C
V
V
I
I
hys
PU
S
IH
L
IO
IL
PU
pull-up equivalent resistor is based on a resistive transistor.
Output low to high level rise
Static current consumption
Output high to low level fall
induced by each floating
Weak pull-up equivalent
I/O port pin characteristics
General characteristics
Subject to general operating conditions for V
General characteristics
Figure 88. Two typical applications with unused I/O pin
1. During normal operation the ICCCLK pin must be pulled-up, internally or externally (external pull-up of 10k
2. I/O can be left unconnected if it is configured as output (0 or 1) by the software. This has the advantage of
External interrupt pulse
Input high level voltage
Schmitt trigger voltage
Input low level voltage
Input leakage current
I/O pin capacitance
mandatory in noisy environment). This is to avoid entering ICC mode unexpectedly during a reset.
greater EMC robustness and lower cost.
hysteresis
Parameter
input pin
resistor
time
time
time
(1)
(1)
(4)
V
DD
(3)
(2)
(1)
10kΩ
UNUSED I/O PORT
V
IN
=
ST7XXX
V
Between 10% and 90%
SS
Floating input mode
V
SS
Conditions
C
Figure
L
≤
= 50 pF
V
IN
V
≤
88). Static peak current value taken at a fixed V
DD
V
=5 V
DD
DD
, f
OSC
, and T
ST7FOXF1, ST7FOXK1, ST7FOXK2
10kΩ
V
0.7V
SS
Min
100
A
1
- 0.3
unless otherwise specified.
DD
UNUSED I/O PORT
ST7XXX
Typ
400
400
120
25
25
5
V
0.3V
DD
Max
140
DD
±1
+0.3
IN
DD
and
value,
Unit
t
mV
CPU
kΩ
µA
pF
ns
V