ST72F623F2M1 STMicroelectronics, ST72F623F2M1 Datasheet - Page 120

• Manufacturer Part Number: ST72F623F2M1
• Description: IC MCU 8BIT LS 8K 20-SOIC
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F623F2M1

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: USB
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 11
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 3x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SOIC (7.5mm Width)
• Processor Series: ST72F6x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 384 B
• Interface Type: SCI, SPI, USB
• Maximum Clock Frequency: 12 MHz
• Number Of Programmable I/os: 11
• Number Of Timers: 2
• Operating Supply Voltage: 4 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• On-chip Adc: 10 bit
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 497-2114-5

12.12 10-BIT ADC CHARACTERISTICS
Subject to general operating conditions for V
Figure 81. R
Figure 83. 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 10kΩ). Data
based on characterization results, not tested in production.
4. C
pacitance (3pF). A high C
5. This graph shows that depending on the input signal variation (f
the use of a larger serial resistor (R
6. Please refer to Important Notes on conversion speed,
silicon revision identification.
120/139
Symbol
t
CONV
C
R
C
f
V
f
45
40
35
30
25
20
15
10
ADC
AIN
PARASITIC
ADC
5
0
AIN
AIN
AIN
6)
DDA
0
ADC clock frequency
Conversion voltage range
External input impedance
External capacitor on analog input
Variation frequency of analog input signal
Internal sample and hold capacitor
Conversion time
Flash silicon rev. G devices
Conversion time
Flash silicon rev. X and ROM rev. Z devices
V
AIN
represents the capacitance of the PCB (dependent on soldering and PCB layout quality) plus the pad ca-
AIN
and V
max. vs f
10
SSA
C
PARASITIC
R
pins are not available on the pinout, the ADC refers to V
AIN
PARASITIC
(pF)
Parameter
ADC
30
C
AIN
with C
AIN)
value will downgrade conversion accuracy. To remedy this, f
2)
4 MHz
2 MHz
1 MHz
. It is valid for all f
AINx
70
AIN
=0pF
DD,
4)
f
CPU
ADC
Doc ID 6996 Rev 5
A
Section 15.2
=25°C and V
V
, and T
f
frequencies ≤ 4MHz.
DD
ADC
Conditions
Figure 82. Recommended C
V
0.6V
V
0.6V
AIN
=4MHz
T
T
1000
100
0.1
10
), C
1
A
unless otherwise specified
and also to
DD
AIN
-V
0.01
can be increased for stabilization and to allow
SS
2kΩ(max)
=5V. They are given only as design guide-
I
±1μA
L
V
Min
0.4
DD
SSA
Figure 92. on page 137
0.1
and V
f
AIN
(KHz)
Typ
SS
10-Bit A/D
Conversion
112
16
28
6
.
4
1)
1
ADC
AIN
Cain 10 nF
Cain 22 nF
Cain 47 nF
Figure 81
82
/R
Figure
should be reduced.
V
Max
see
and
3)4)5)
AIN
DDA
4
10
ST72XXX
for details on
values
C
6pF
ADC
1/f
1/f
Unit
MHz
kΩ
Hz
pF
pF
μs
μs
V
ADC
ADC
5)