ST72321BR9 STMicroelectronics, ST72321BR9 Datasheet - Page 166

• Manufacturer Part Number: ST72321BR9
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST72321BR9

• Hdflash Endurance: 100 cycles, data retention
• Clock Sources: crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
• Four Power Saving Modes: Halt, Active-Halt, Wait and Slow
• Main Clock Controller With: Real time base, Beep and Clock-out capabilities
• Two 16-bit Timers With: 2 input captures, 2 output compares, external clock input on one timer, PWM and pulse generator modes
• 8-bit Pwm Auto-reload Timer With: 2 input captures, 4 PWM outputs, output compare and time base interrupt, external clock with event detector

ST72321BRx, ST72321BARx ST72321BJx, ST72321BKx
12.12 10-BIT ADC CHARACTERISTICS
Subject to general operating conditions for V
Notes:
1. Any added external serial resistor will downgrade the ADC accuracy (especially for resistance greater than 10kΩ). Data
based on characterization results, not tested in production.
166/187
Symbol
V
C
V
R
C
f
t
t
f
ADC
AREF
ADC
ADC
I
AIN
ADC
AIN
lkg
AIN
AIN
ADC clock frequency
Analog reference voltage
Conversion voltage range
Positive input leakage current for analog
input
Negative input leakage current on ro-
bust analog pins
External input impedance
External capacitor on analog input
Variation freq. of analog input signal
Internal sample and hold capacitor
Conversion time (Sample+Hold)
f
- No of sample capacitor loading cycles
- No. of Hold conversion cycles
CPU
=8MHz, SPEED=0 f
Parameter
2
ADC
1)
=2MHz
DD
0.7*V
-40°C≤ T
Other T
V
on adjacent robust ana-
log pin
, f
IN
CPU
<
V
DD
Conditions
SS,
, and T
A
A
≤ V
≤ 85°C range
ranges
| I
IN
AREF
|< 400µA
A
unless otherwise specified.
≤ V
DD
V
Min
0.4
3.8
SSA
Typ
12
7.5
5
11
4
Figure 93
Figure 94
V
±250
Max
and
V
see
AREF
±1
2
6
DD
1/f
Unit
MHz
nA
μA
μA
Hz
pF
kΩ
pF
μs
V
ADC