ST72345C4 STMicroelectronics, ST72345C4 Datasheet - Page 216

• Manufacturer Part Number: ST72345C4
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST72345C4

• Up To 16 Kbytes Program Memory: single voltage extended Flash (XFlash) with readout and write protection, in-circuit and inapplication programming (ICP and IAP). 10K write/erase cycles guaranteed, data retention
• 256 Bytes Data Eeprom With Readout Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55 °C.
• Clock Sources: crystal/ceramic resonator oscillators, high-accuracy internal RC oscillator or external clock
• 5 Power-saving Modes: Slow, Wait, Halt, Auto-wakeup from Halt and Active-halt
• 16-bit Timer A With: 1 input capture, 1 output compares, external clock input, PWM and pulse generator modes
• 16-bit Timer B With: 2 input captures, 2 output compares, PWM and pulse generator modes

Electrical characteristics
Caution:
216/247
Figure 98. Two typical applications with unused I/O pin
1. I/O can be left unconnected if it is configured as output (0 or 1) by the software. This has the advantage of
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.
Table 108. Output driving current
1. Subject to general operating conditions for V
2. The I
3. The I
4. Not tested in production, based on characterization results.
Symbol
V
V
(2)(4)
(3)(4)
(2)(4)
(3)(4)
V
V
OH
OL
V
V
greater EMC robustness and lower cost.
characteristics
characteristics
OH
OH
OL
OL
(2)
(3)
IO
IO
current sunk must always respect the absolute maximum rating specified in
current sourced must always respect the absolute maximum rating specified in
Output low level voltage for a standard I/O
pin when 8 pins are sunk at same time
(see
Output low level voltage for a high sink I/O
pin when 4 pins are sunk at same time
(see
Output high level voltage for an I/O pin
when 4 pins are sourced at same time
(see
Output low level voltage for a standard I/O
pin when 8 pins are sunk at same time
(see
Output low level voltage for a high sink I/O
pin when 4 pins are sunk at same time
Output high level voltage for an I/O pin
when 4 pins are sourced at same time
(Figure
Output low level voltage for a standard I/O
pin when 8 pins are sunk at same time
(see
Output low level voltage for a high sink I/O
pin when 4 pins are sunk at same time
Output high level voltage for an I/O pin
when 4 pins are sourced at same time
(see
V
DD
Figure
Figure
Figure
Figure
Figure
Figure
10kΩ
and the sum of I
and the sum of I
111)
101)
104)
113)
100)
102)
110)
UNUSED I/O PORT
Parameter
IO
IO
ST7XXX
(I/O ports and control pins) must not exceed I
(I/O ports and control pins) must not exceed I
Doc ID 12321 Rev 5
(1)
DD
, f
CPU
, and T
A
unless otherwise specified.
Conditions
I
I
I
I
I
I
I
I
I
I
I
I
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
10kΩ
= +5 mA
= +2 mA
= +20 mA
= +8 mA
= -5 mA
= -2 mA
= +2 mA
= +8 mA
= -2 mA
= +2 mA
= +8 mA
= -2 mA
UNUSED I/O PORT
VSS
VDD
ST72344xx ST72345xx
V
V
V
V
.
.
DD
DD
DD
DD
Table 85: Current
Min
ST7XXX
-1.5
-0.8
-0.8
-0.9
Table 85: Current
Max
0.75
1.0
0.4
1.3
0.7
0.5
0.9
0.6
Unit
V