st10f273m STMicroelectronics, st10f273m Datasheet - Page 130

• Manufacturer Part Number: st10f273m
• Description: 16-bit Mcu With 512 Kbyte Flash Memory And 36 Kbyte Ram
• Manufacturer: STMicroelectronics

Electrical characteristics
24.2
24.3
130/182
Recommended operating conditions
Table 54.
1. The value of the V
2. For details on operating conditions concerning the usage of A/D converter refer to
Power considerations
The average chip-junction temperature, T
following equation:
Where:
T
Θ
P
P
P
Most of the time for the applications P
P
and/or memories.
An approximate relationship between P
Therefore (solving equations 1 and 2):
Where:
K is a constant for the particular part, which may be determined from equation (3) by
measuring P
may be obtained by solving equations (1) and (2) iteratively for any value of T
A
D
INT
I/O
I/O
JA
Symbol
is the Ambient Temperature in °C,
exceed the upper limit (up to 6.0 Volt) for a maximum of 100 hours over the global 300000 hours,
representing the lifetime of the device (about 30 years). On the other hand, it is possible to exceed the
lower limit (down to 4.0 Volt) whenever RTC and 32 kHz on-chip oscillator amplifier are turned off (only
Standby RAM powered through VSTBY pin in Standby mode). When V
V
(in the range of tenth of µA).
is the sum of P
V
V
DD
is the Package Junction-to-Ambient Thermal Resistance, in °C/W,
represents the Power Dissipation on Input and Output Pins; User Determined.
may be significant if the device is configured to drive continuously external modules
V
is the product of I
AREF
STBY
T
T
DD
, the input section of V
A
J
D
Recommended operating conditions
Operating supply voltage
Operating standby supply voltage
Operating analog reference voltage
Ambient temperature under bias
Junction temperature under bias
(at equilibrium) for a known T
STBY
INT
and P
voltage is specified in the range of 4.5 to 5.5 Volt. Nevertheless, it is acceptable to
DD
STBY
and V
K = P
I/O
/EA pin can generate a spurious static consumption on V
(P
Parameter
DD
D
D
P
T
x (T
, expressed in Watt. This is the Chip Internal Power,
D
J
= P
= T
= K / (T
A
I/O
INT
+ 273°C) + Θ
D
A
< P
J
and T
+ (P
, in degrees Celsius, may be calculated using the
+ P
A.
INT
J
(1)
+ 273°C) (2)
I/O
D
(2)
Using this value of K, the values of P
J
and may be neglected. On the other hand,
x Θ
),
(if P
JA
JA
I/O
) (1)
x P
is neglected) is given by:
D
2
STBY
(3)
Min
4.5
-40
voltage is lower than main
0
Value
Section
V
DD
DD
+125
+150
Max
5.5
24.7.
power supply
+ 0.1
A
.
ST10F273M
D
and T
Unit
°C
V
J