ST72F325K4T6 STMicroelectronics, ST72F325K4T6 Datasheet - Page 151

• Manufacturer Part Number: ST72F325K4T6
• Description: MCU 8BIT 16KB FLASH/ROM 32-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F325K4T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 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: 32-LQFP
• Processor Series: ST72F3x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• 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, ST72325-D/RAIS, ST7MDT20-DVP3, ST7MDT20J-EMU3, ST7MDT20M-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• 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: 497-5605

Figure 76. Typical Application with a Crystal or Ceramic Resonator
1. The relatively low value of the RF resistor, offers a good protection against issues resulting from use in a humid envi-
ronment, due to the induced leakage and the bias condition change. However, it is recommended to take this point into
account if the µC is used in tough humidity conditions.
2. For C
for high-frequency applications and selected to match the requirements of the crystal or resonator. C
ally the same size. The crystal manufacturer typically specifies a load capacitance which is the series combination of C
and C
mate of the combined pin and board capacitance).
WHEN RESONATOR WITH
INTEGRATED CAPACITORS
L2
. PCB and MCU pin capacitance must be included when sizing C
L1
and C
L2
it is recommended to use high-quality ceramic capacitors in the 5-pF to 25-pF range (typ.) designed
C
L2
C
L1
RESONATOR
OSC2
OSC1
R
F
V
Ref
DD
/2
i
AMPLIFIER
2
L1
LINEAR
and C
L2
(10 pF can be used as a rough esti-
f
OSC
FEEDBACK
LOOP
POWER DOWN
ST72XXX
LOGIC
L1
and C
ST72325xx
L2,
are usu-
151/197
L1