ST72344S4 STMicroelectronics, ST72344S4 Datasheet - Page 202

• Manufacturer Part Number: ST72344S4
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST72344S4

• 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
13.3
Note:
202/247
Operating conditions
Table 87.
1. T
When the power supply is between 2.7 and 2.95 V (V
guaranteed functional area or in reset state, thus allowing deterministic application behavior.
However the LVD may generate a reset below 2.95 V and the user should therefore not use
the device below this level when the LVD is enabled.
Figure 87. f
Table 88.
1. T
2. Not tested in production, guaranteed by design
V
V
V
Vt
t
Symbol
CAUTION: RESET MAY
BE ACTIVATED BY LVD
IN THIS AREA
g(VDD)
Symbol
NOT GUARANTEED
IT+(LVD)
IT-(LVD)
hys(LVD)
POR
f
V
FUNCTIONALITY
OSC
A
A
DD
IN THIS AREA
= -40 to +85 °C unless otherwise specified.
= -40 to +85 °C unless otherwise specified.
Reset release threshold
(V
Reset generation threshold
(V
LVD voltage threshold
hysteresis
V
V
Supply voltage
External clock frequency
DD
DD
DD
DD
General operating conditions
LVD thresholds
CPU
rise time rate
glitches filtered by LVD
f
rise)
fall)
CPU
8
4
2
0
[MHz]
maximum operating frequency versus V
Parameter
Parameter
2.7
3.3
Doc ID 12321 Rev 5
3.6
f
f
3.3 V ≤ V
2.7 V ≤ V
High threshold
Med. threshold
Low threshold
High threshold
Med. threshold
Low threshold
V
CPU
CPU
IT+(LVD)
4.0
Conditions
= 8 MHz. max.
= 4 MHz. max.
(1)
DD
DD
-V
Conditions
≤ 5.5 V
IT-(LVD)
< 3.3 V
4.5
IT+(LVD)
(1)
5.0
max), the device is either in the
20
DD
3.85
3.24
2.60
3.66
3.04
2.45
Min
(2)
5.5
supply voltage
ST72344xx ST72345xx
150
4.20
3.56
2.88
3.98
3.36
2.71
Typ
200
Min
3.3
2.7
Up to 16
Up to 8
SUPPLY VOLTAGE [V]
FUNCTIONALITY
GUARANTEED
IN THIS AREA
100
Max
4.61
3.90
3.14
3.66
2.95
4.36
Max
5.5
5.5
(2)
ms/V
Unit
MHz
Unit
mV
ns
V
V