ST72F321BR9T6 STMicroelectronics, ST72F321BR9T6 Datasheet - Page 139

• Manufacturer Part Number: ST72F321BR9T6
• Description: MCU 8BIT 60KB FLASH/ROM 64-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F321BR9T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 48
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3.8 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Processor Series: ST72F3x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: I2C, SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 48
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7232X-EVAL, ST7232X-SK/RAIS, ST72321B-D/RAIS, ST7MDT20-DVP3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• Cpu Family: ST7
• Device Core Size: 8b
• Frequency (max): 8MHz
• Total Internal Ram Size: 2KB
• # I/os (max): 48
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 3.8V
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 64
• Package Type: LQFP
• For Use With: 497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 497-5586

12.2 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-
12.2.1 Voltage Characteristics
12.2.2 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: 4.7kΩ for
RESET, 10kΩ for I/Os). For the same reason, unused I/O pins must not be directly tied to V
2. I
respected, the injection current must be limited externally to the I
while a negative injection is induced by V
corresponding V
3. All power (V
4. Negative injection disturbs the analog performance of the device. See note in
For best reliability, it is recommended to avoid negative injection of more than 1.6mA.
5. When several inputs are submitted to a current injection, the maximum ΣI
and negative injected currents (instantaneous values). These results are based on characterisation with ΣI
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.
|ΔV
INJ(PIN)
I
DDx
|V
INJ(PIN)
ΣI
V
V
V
V
V
SSA
Symbol
Symbol
ESD(HBM)
DD
INJ(PIN)
PP
IN
ESD(MM)
| and |ΔV
I
I
VDD
VSS
must never be exceeded. This is implicitly insured if V
I
1) & 2)
IO
- V
- V
- V
2) & 4)
DD
SS
SS
SSx
2)
IN
) and ground (V
|
SSx
maximum must always be respected
|
Supply voltage
Programming 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 ground 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 V
Injected current on RESET pin
Injected current on OSC1 and OSC2 pins
Injected current on PB0 (Flash devices only)
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.
IN
<V
ST72321BRx, ST72321BARx ST72321BJx, ST72321BKx
DD
SS
PP
SS
. For true open-drain pads, there is no positive injection current, and the
power lines (source)
Ratings
Ratings
pin
ground lines (sink)
DD
or V
5) & 6)
SS
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.
INJ(PIN)
IN
maximum is respected. If V
3)
3)
value. A positive injection is induced by V
INJ(PIN)
5)
“ADC Accuracy” on page
see
is the absolute sum of the positive
V
Maximum value
Maximum value
SS
section 12.7.3 on page 154
V
-0.3 to V
SS
-0.3 to 6.5
DD
± 25
150
150
- 25
± 5
± 5
± 5
+ 5
± 5
25
50
6.5
13
50
50
or V
IN
DD
SS
maximum cannot be
+0.3
.
169.
INJ(PIN)
Unit
Unit
mA
mA
139/187
mV
IN
V
maxi-
>V
DD