ST72324BK2 STMicroelectronics, ST72324BK2 Datasheet - Page 153

• Manufacturer Part Number: ST72324BK2
• Description: 5V RANGE 8-BIT MCU WITH 8 TO 32K FLASH/ROM, 10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE
• Manufacturer: STMicroelectronics

Specifications of ST72324BK2

• Hdflash Endurance: 1 kcycle at 55 °C, data retention 40 years at 85 °C
• Clock Sources: crystal/ceramic resonator oscillators, int. RC osc. and ext. clock input
• 4 Power Saving Modes: Slow, Wait, Active-halt, and Halt

ST72324Bxx
Note:
12.6.5
12.7
12.7.1
To reduce disturbance to the RC oscillator, it is recommended to place decoupling
capacitors between V
PLL characteristics
Table 99.
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 69
2 MHz. At frequencies of less than 125 kHz, the jitter is negligible.
Figure 69. Integrated PLL jitter vs signal frequency
1. Measurement conditions: f
Memory characteristics
RAM and hardware registers
Table 100. RAM and hardware registers
1. Minimum V
Δ f
Symbol
Symbol
hardware registers (only in Halt mode). Not tested in production.
V
CPU
f
RM
OSC
/f
CPU
shows the PLL jitter integrated on application signals in the range 125 kHz to
Data retention mode
DD
PLL characteristics
PLL input frequency range
Instantaneous PLL jitter
supply voltage without losing data stored in RAM (in Halt mode or under reset) or in
Parameter
DD
Parameter
CPU
+/-Jitter (%)
and V
= 8 MHz
1.2
0.8
0.6
0.4
0.2
1
0
(1)
SS
4 MHz
as shown in
(1)
2 MHz
Halt mode (or reset)
Application Frequency
f
1 MHz 500 kHz 250 kHz 125 kHz
OSC
Conditions
Figure 87 on page
Conditions
= 4 MHz
(1)
Max
Typ
Min
1.6
Min
2
Electrical characteristics
170.
Typ
Typ
0.7
Max
Max
4
2
153/193
MHz
Unit
Unit
%
V