ST72F325K4T6 STMicroelectronics, ST72F325K4T6 Datasheet - Page 154

• 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

ST72325xx
CLOCK CHARACTERISTICS (Cont’d)
12.5.5 Clock Security System (CSS)
Note:
1. Data based on characterization results.
12.5.6 PLL Characteristics
Note:
1. Data characterized but not tested.
The user must take the PLL jitter into account in the application (for example in serial communication or
sampling of high frequency signals). The PLL jitter is a periodic effect, which is integrated over several
CPU cycles. Therefore the longer the period of the application signal, the less it will be impacted by the
PLL jitter.
Figure 78
cies of less than 125KHz, the jitter is negligible.
Figure 78. Integrated PLL Jitter vs signal frequency
Note 1: Measurement conditions: f
154/197
+/-Jitter (%)
f
f
Δ f
SFOSC
OSC
Symbol
Symbol
CPU
1.2
0.8
0.6
0.4
0.2
/ f
1
0
CPU
shows the PLL jitter integrated on application signals in the range 125kHz to 4MHz. At frequen-
4 MHz
Safe Oscillator Frequency
PLL input frequency range
Instantaneous PLL jitter
2 MHz
Parameter
Parameter
Application Frequency
1 MHz 500 kHz 250 kHz 125 kHz
1)
1)
CPU
= 8MHz.
f
OSC
= 4 MHz.
Max
Typ
Conditions
Conditions
1
Min
Min
2
Typ
Typ
0.7
3
Max
Max
4
2
MHz
Unit
MHz
Unit
%