ST72C334J4T6 STMicroelectronics, ST72C334J4T6 Datasheet - Page 108

• Manufacturer Part Number: ST72C334J4T6
• Description: MCU 8BIT FLASH SPI SCI 44TQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72C334J4T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 3.2 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: ST72C3x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 4 bit
• Operating Supply Voltage: 3.2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7C334-INDART, ST7MDT2-EPB2/US
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-4838

ST72334J/N, ST72314J/N, ST72124J
16.2 ABSOLUTE MAXIMUM RATINGS
Stresses above those listed as “absolute maxi-
mum ratings” may cause permanent damage to
the device. This is a stress rating only and func-
tional operation of the device under these condi-
16.2.1 Voltage Characteristics
16.2.2 Current Characteristics
Notes:
1. Directly connecting the RESET and I/O pins to V
is generated or an unexpected change of the I/O configuration occurs (for example, due to a corrupted program counter).
To guarantee safe operation, this connection has to be done through a pull-up or pull-down resistor (typical: 4.7k
RESET, 10k for I/Os). Unused I/O pins must be tied in the same way to V
2. When the current limitation is not possible, the V
I
3. All power (V
4. Negative injection disturbs the analog performance of the device. In particular, it induces leakage currents throughout
the device including the analog inputs. To avoid undesirable effects on the analog functions, care must be taken:
- Analog input pins must have a negative injection less than 0.8 mA (assuming that the impedance of the analog voltage
is lower than the specified limits)
- Pure digital pins must have a negative injection less than 1.6mA. In addition, it is recommended to inject the current as
far as possible from the analog input pins.
5. When several inputs are submitted to a current injection, the maximum I
and negative injected currents (instantaneous values). These results are based on characterisation with I
mum current injection on four I/O port pins of the device.
6. True open drain I/O port pins do not accept positive injection.
108/153
INJ(PIN)
| V
I
DDx
|V
V
INJ(PIN)
V
V
V
DDA
V
V
DDX
SSA
specification. A positive injection is induced by V
Symbol
Symbol
I
ESD(HBM)
INJ(PIN)
DD
ESD(MM)
IN
| and | V
I
I
VDD
VSS
I
1) & 2)
- V
IO
- V
- V
- V
2) & 4)
DDA
DD
SS
SSA
SSx
2)
) and ground (V
|
SSx
|
Supply voltage
Analog Reference Voltage
Input voltage on true open drain pin
Input voltage on any other pin
Variations between different digital power pins
Variations between digital and analog power pins
Electro-static discharge voltage (Human Body Model)
Electro-static discharge voltage (Machine Model)
Total current into V
Total current out of V
Output current sunk by any standard I/O and control pin
Output current sunk by any high sink I/O pin
Output current source by any I/Os and control pin
Injected current on ISPSEL pin
Injected current on RESET pin
Injected current on OSC1 and OSC2 pins
Injected current on any other pin
Total injected current (sum of all I/O and control pins)
SS
) lines must always be connected to the external supply.
DD
SS
power lines (source)
Ratings
Ratings
ground lines (sink)
DD
IN
or V
absolute maximum rating must be respected, otherwise refer to
IN
>V
5) & 6)
SS
DD
could damage the device if an unintentional internal reset
tions is not implied. Exposure to maximum rating
conditions for extended periods may affect device
reliability.
while a negative injection is induced by V
3)
3)
DD
or V
INJ(PIN)
5)
SS
according to their reset configuration.
see
cal Sensitivity" on page 124
is the absolute sum of the positive
V
Maximum value
Maximum value
SS
Section 16.7.2 "Absolute Electri-
V
-0.3 to V
SS
-0.3 to 6.5
± 20
150
150
- 25
6.5
6.5
± 5
± 5
± 5
± 5
50
50
25
50
DD
+0.3
IN
INJ(PIN)
<V
SS
Unit
Unit
mV
mA
V
.
maxi-
for