ST72124J2 STMicroelectronics, ST72124J2 Datasheet - Page 138

• Manufacturer Part Number: ST72124J2
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY,ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
• Manufacturer: STMicroelectronics

Specifications of ST72124J2

• Clock Sources: crystal/ceramic resonator oscillators or RC oscillators, external clock, backup Clock Security System
• 4 Power Saving Modes: Halt, Active-Halt, Wait and Slow
• Two 16-bit Timers With: 2 input captures (only one on timer A), 2 output compares (only one on timer A), External clock input on timer A, PWM and Pulse generator modes

ST72334J/N, ST72314J/N, ST72124J
16.12 8-BIT ADC CHARACTERISTICS
Subject to general operating conditions for V
Figure 98. Typical Application with ADC
Notes:
1. Unless otherwise specified, typical data are based on T
lines and are not tested.
2. When V
3. Any added external serial resistor will downgrade the ADC accuracy (especially for resistance greater than 10k ). Data
based on characterization results, not tested in production.
4. The stabilization time of the AD converter is masked by the first t
always valid.
138/153
Symbol
C
t
R
f
V
t
STAB
ADC
ADC
ADC
AIN
AIN
DDA
ADC clock frequency
Conversion range voltage
External input resistor
Internal sample and hold capacitor
Stabilization time after ADC enable
Conversion time (Sample+Hold)
- Sample capacitor loading time
- Hold conversion time
V
V
and V
AIN
DD
SSA
Parameter
0.1 F
pins are not available on the pinout, the ADC refer to V
R
AIN
2)
AINx
V
V
DDA
SSA
f
CPU
C
~2pF
DD
IO
=8MHz, f
, f
OSC
Conditions
A
=25°C and V
V
, and T
DD
ADC
V
0.6V
V
0.6V
T
T
=4MHz
A
LOAD
DD
unless otherwise specified.
-V
. The first conversion after the enable is then
SS
=5V. They are given only as design guide-
I
±1 A
L
V
Min
DD
SSA
and V
SS
Typ
0
.
6
3
4
8
ADC
4)
1)
Max
V
10
DDA
4
3)
ST72XXX
1/f
Unit
MHz
k
pF
V
ADC
s