ST72F321R6TC STMicroelectronics, ST72F321R6TC Datasheet - Page 151
ST72F321R6TC
Manufacturer Part Number
ST72F321R6TC
Description
IC MCU 8BIT 32K FLASH 64-TQFP
Manufacturer
STMicroelectronics
Series
ST7r
Datasheet
1.ST72F321AR7T6.pdf
(193 pages)
Specifications of ST72F321R6TC
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 ~ 125°C
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST72F321R6TC
Manufacturer:
STMicroelectronics
Quantity:
10 000
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CLOCK CHARACTERISTICS (Cont’d)
Note:
1. Data based on characterization results.
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 80
cies of less than 125KHz, the jitter is negligible.
Figure 80. Integrated PLL Jitter vs signal frequency
Note 1: Measurement conditions: f
+/-Jitter (%)
f
Δ f
OSC
Symbol
CPU
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
/ f
0
CPU
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
1)
CPU
500 kHz
= 8MHz.
f
f
OSC
OSC
= 4 MHz.
= 2 MHz.
250 kHz
Conditions
1
ST72321Rx ST72321ARx ST72321Jx
Min
2
Typ
1.0
2.5
Max
2.5
4.0
4
151/193
MHz
Unit
%
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