ST72F521AR9TC STMicroelectronics, ST72F521AR9TC Datasheet - Page 177

• Manufacturer Part Number: ST72F521AR9TC
• Description: IC MCU 8BIT 60K FLASH 64-TQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F521AR9TC

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: CAN, 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 ~ 125°C
• Package / Case: 64-TQFP, 64-VQFP
• For Use With: 497-6453 - BOARD EVAL BASED ON ST7LNBX
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

CLOCK CHARACTERISTICS (Cont’d)
12.5.5 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 94
cies of less than 125KHz, the jitter is negligible.
Figure 94. Integrated PLL Jitter vs signal frequency
Note 1: Measurement conditions: f
f
∆ f
OSC
Symbol
CPU
+/-Jitter (%)
/ f
1.2
0.8
0.6
0.4
0.2
CPU
1
0
shows the PLL jitter integrated on application signals in the range 125kHz to 4MHz. At frequen-
4 MHz
PLL input frequency range
Instantaneous PLL jitter
2 MHz
Parameter
Application Frequency
1 MHz 500 kHz 250 kHz 125 kHz
1)
CPU
= 8MHz.
FLASH typ
ROM max
ROM typ
ROM device,
f
Flash device,
f
Flash device,
f
OSC
OSC
OSC
= 4 MHz.
= 4 MHz.
= 2 MHz.
Conditions
1
Min
2
ST72F521, ST72521B
Typ
0.7
1.0
2.5
Max
2.5
4.0
4
2
177/215
MHz
Unit
%