ST72F321AR6T6 STMicroelectronics, ST72F321AR6T6 Datasheet - Page 150

• Manufacturer Part Number: ST72F321AR6T6
• Description: MCU 8BIT 32KB FLASH 64TQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F321AR6T6

• 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: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K 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-TQFP, 64-VQFP
• Processor Series: ST72F3x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 1024 B
• Interface Type: I2C, SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 48
• Number Of Timers: 5
• Operating Supply Voltage: 3.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7F521-IND/USB, ST7232X-EVAL, ST7MDT20-DVP3, ST7MDT20J-EMU3, ST7MDT20M-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 497-4842

ST72321Rx ST72321ARx ST72321Jx
CLOCK CHARACTERISTICS (Cont’d)
12.5.4 RC Oscillators
Figure 79. Typical f
150/193
f
OSC (RCINT)
Symbol
3.8
3.6
3.4
3.2
4
3
-45
Internal RC oscillator frequency
See
0
Figure 79
OSC(RCINT)
T
Parameter
A
25
(°C)
vs T
Vdd = 5V
Vdd = 5.5V
70
A
130
T
A
=25°C, V
Conditions
Note: To reduce disturbance to the RC oscillator,
it is recommended to place decoupling capacitors
between V
DD
=5V
DD
and V
Min
SS
2
as shown in
Typ
3.5
Figure 99
Max
5.6
MHz
Unit