ST72C334N2B6 STMicroelectronics, ST72C334N2B6 Datasheet - Page 105

• Manufacturer Part Number: ST72C334N2B6
• Description: Microcontrollers (MCU) Flash 8K SPI/SCI
• Manufacturer: STMicroelectronics

Specifications of ST72C334N2B6

• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 8 KB
• Data Ram Size: 384 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 44
• Number Of Timers: 16 bit
• Operating Supply Voltage: 3.2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Package / Case: SDIP-56
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / Rohs Status: No

8 ELECTRICAL CHARACTERISTICS
8.1 ABSOLUTE MAXIMUM RATINGS
This product contains devices for protecting the in-
puts against damage due to high static voltages,
however it is advisable to take normal precautions
to avoid applying any voltage higher than the
specified maximum rated voltages.
For proper operation it is recommended that V
and V
Reliability is enhanced if unused inputs are con-
nected to an appropriate logic voltage level (V
or V
Note:
Stresses above those listed as “absolute maximum ratings” may cause permanent damage to the device. This is a stress
rating only and functional operation of the device under these conditions is not implied. Exposure to maximum rating con-
ditions for extended periods may affect device reliability.
General Warning:
Directly connecting the RESET and I/O pins to V
generated or the program counter is corrupted (by an expected change to the I/O configuration). To guarantee safe op-
eration, this connection has to be done through a pull-up or pull-down resistor (10K
Thermal Characteristics
SS
|V
|V
|V
|V
V
O
).
V
DD_i
DDA
DD_i
SS_i
SS_i
Symbol
Symbol
DD
be higher than V
I
I
V
R
T
ESD
VDD_i
VSS_i
T
V
PD
OUT
thJA
Jmax
STG
- V
- V
- V
- V
- V
- V
IN
DD_j
DDA
SS_j
SS
SSA
SSA
|
|
|
|
Supply voltage
Analog reference voltage
V
Max. variations (power line)
Max. variations (ground line)
Input voltage
Output voltage
ESD susceptibility
Total current into V
Total current out of V
Package thermal resistance
Max. junction temperature
Storage temperature range
Power dissipation
DDA
SS
> V
and lower than V
SS
DD_i
Ratings
Ratings
SS_i
DD
(source)
(sink)
or V
DD
DD
I
.
SS
could damage the device if an unintentional internal reset is
Power Considerations. The average chip-junc-
tion temperature, T
from:
Where:
TQFP64
TQFP44
SDIP56
SDIP42
ST72334J/N, ST72314J/N, ST72124J
T
T
RthJA =Package thermal resistance
P
P
P
J
A
D
INT
PORT
=
=
=
= I
V
V
SS
SS
=Port power dissipation
TA + PD x RthJA
Ambient Temperature.
(junction-to ambient).
P
determined by the user)
DD
- 0.3 to V
- 0.3 to V
J
-65 to +150
INT
typical).
, in Celsius can be obtained
x V
Value
Value
TBD
TBD
TBD
2000
150
150
150
6.5
6.5
500
+ P
50
50
60
DD
PORT
DD
DD
(chip internal power).
+ 0.3
+ 0.3
.
Unit
Unit
mW
105/125
mV
mV
mA
C/W
V
V
V
V
V
C
C